CN104969532B - Method and device for file download - Google Patents

Abstract

According to the embodiment of the application, in the process of using the service provided by the CSP server, the terminal does not need to be additionally connected with the UCD server, and the blocked files uploaded by the UCD server through a user can be acquired through the connection with the CSP server, so that the process that the terminal is additionally connected with the UCD server is avoided, the user operation is simplified, and the user experience is improved.

Description

Method and device for file download

technical field

The invention relates to the field of cloud computing, in particular to a method and device for downloading files.

Background technique

Cloud storage service refers to the service in which the server provides users with file management functions such as file storage, access, backup, and sharing. Users can regard the server as a hard disk or network disk on the network, no matter where they are, they can manage and edit files stored on the server through the Internet.

In the prior art, a user can register with a different cloud service provider (cloud service provider, CSP) in a unified cloud disk (unified cloud disk, UCD) system, register at the UCD server UCD server, and register with the UCD server The server provides information related to the user's registration at the CSP server, such as the user name and password registered at the CSP server, so that the UCD server can log in to the CSP server that the user has registered based on the user's registration information at the CSP server. The user passes through the UCD client (UCD Client), send a file operation request (such as upload, download, rename, etc.) to the UCD server.

For example, if a user uploads a file to the UCD server through the UCD client, the UCD server will select a suitable CSP among the CSPs registered by the user according to a certain strategy. The specific strategy can be: for example, the CSP server with the largest storage capacity currently, The current fastest transmission speed is the CSP server, and this file is actually stored in the network disk of the CSP server selected by the UCD server. For the user, it is only known that the file is stored in the CSP server registered by the user in advance, but it is not clear which CSP server it is stored in. For example, the user uploads two files through the UCD client, and the two files are stored in the CSP server A and the CSP server C respectively by the UCD server. It is also possible that the two files are stored in one CSP server at the same time.

In addition, users sometimes split a file into different file blocks and store different file blocks in different devices (such as servers). In this way, even if a file block is stolen, the entire file cannot be obtained because other file blocks of the file cannot be obtained, thereby ensuring the security of the file. For example, in the existing method, a file is divided into two file blocks, and the two file blocks are stored on different servers. One file block is the sensitive data in the file, and the other file block is the general data in the file. Thereby, the security of the file is ensured by the method of file division. In another scenario, users may also store large files in blocks.

However, if the UCD server selects the CSP server to store the file blocks, different file blocks of the same file are likely to be stored at different CSP servers. Therefore, when different file blocks of the same file are stored in the network disks of different CSP servers, the user terminal cannot obtain the stored file from the CSP server when establishing a connection with the CSP server, but can only establish a connection with the UCD server separately through the terminal After that, get the entire file from the UCD server. As a result, the user's operation is cumbersome and inconvenient, and the experience is not high.

Contents of the invention

The method and device for downloading files provided by the embodiments of the present invention can enable the terminal to download files from the CSP server after logging in to the CSP server and using services provided by the CSP server.

According to the first aspect of the embodiments of the present invention, a file download method, after the first terminal logs in the first CSP server through the user's registration information on the first cloud service provider CSP server, and the first In the process of the CSP server providing services to the first terminal, the method includes: the first CSP server receives a file download request sent by the first terminal, and the file download request carries an identifier of an original file; the The first CSP server determines that the original file corresponding to the identifier of the original file is divided into blocks, and obtains the identifier of the first unified cloud disk UCD server that uploads the file block of the original file; the first CSP server according to the first CSP server An identifier of a UCD server sends a file acquisition request to the first UCD server, and the file acquisition request carries the identifier of the original file; the file acquisition request is used to instruct the first UCD server to Identifying and obtaining the information of the stored original file, and according to the identification of the second CSP server storing the file block in the information of the original file, obtaining the file block from the second CSP server indicated by the identification of the second CSP server, and The acquired file blocks are synthesized into an original file; the first CSP server receives the file acquisition response returned by the first UCD server, and sends the file acquisition response to the first terminal to instruct the second A terminal acquires the original file through the file acquisition response.

In combination with the first possibility of the first aspect of the present invention, the obtaining the original file by the first terminal through the file obtaining response specifically includes: the file obtaining response carries the original file, and the first terminal obtains the response from the file or the file acquisition response carries the storage address of the original file in the first UCD server; the first terminal acquires the original file from the first UCD server according to the storage address Original file.

In combination with the first aspect of the embodiments of the present invention or the first possible second possibility, before receiving the file download request sent by the first terminal, the method further includes: receiving the query request sent by the first terminal; according to The user's registration information on the first CSP server obtains the file block information stored by the user on the first CSP server, and the file block information includes the identification of the uploaded first UCD server and the file block to which the file block belongs the identification of the original file; send a file block query request to the first UCD server according to the identification of the first UCD server, the file block query request includes the identification of the original file to which the file block belongs; receive the The information of the original file returned by the first UCD server, the information of the original file returned includes: the name of the original file, the identification of the original file and the identification of the first UCD server and the divided file block quantity of the original file; Sending the name of the original file and the identifier of the original file to the first terminal, and storing the information of the returned original file; or sending the information of the original file to the first terminal.

In combination with the second possible third possibility of the first aspect of the embodiment of the present invention, the file block information further includes a file block identification bit; the sending the file to the first UCD server according to the identification of the first UCD server Before the block query request, the first CSP server further determines that the file block identification bit is an original file segmentation identification.

In combination with the second possibility of the first aspect of the embodiment of the present invention or the fourth possibility of the third possibility, the file download request further includes: the number of file blocks that the original file is divided into, and the number of blocks of the first UCD server Identification; the first CSP server determines that the original file corresponding to the identification of the original file is divided into blocks, and obtaining the identification of the first unified cloud disk UCD server is specifically: the first CSP server determines that the original file is divided into blocks The number of divided file blocks is greater than 1, and the identification of the first UCD server is obtained from the file download request; or, the first CSP server determines that the original file corresponding to the identification of the original file is divided into blocks, And obtaining the identification of the first unified cloud disk UCD server is specifically: the first CSP server acquires and stores the information of the original file corresponding to the identification of the original file according to the identification of the original file, and the information of the original file Contains: the identifier of the original file and the identifier of the first UCD server and the number of file blocks of the original file; the first CSP server determines that the number of file blocks of the original file is greater than 1, and from the original file The identifier of the first UCD server is obtained from the information.

In combination with any of the above-mentioned possible fifth possibilities of the first aspect of the embodiment of the present invention, the method further includes:

Receiving the upload block request sent by the first UCD server; the upload block request includes the file block of the original file, the file block information generated by the first UCD server, and the user's information on the first CSP server registration information; store the file block, and map and store the file block information and the registration information of the user on the first CSP server.

In combination with any of the above possible sixth possibilities of the first aspect of the embodiments of the present invention, the method further includes:

receiving a file deletion request sent by the first terminal, where the file deletion request carries the identifier of the file to be deleted;

The first CSP server determines that the file to be deleted corresponding to the identifier of the file to be deleted is divided into blocks, and obtains the identifier of the second UCD server that uploads the file block of the file to be deleted;

Send the file deletion request to the second UCD server according to the identifier of the second UCD server, and the file deletion request is used to instruct the second UCD server to send the file to the fourth CSP that stores the file block of the file to be deleted The server sends a file block deletion request, and after receiving the file block deletion response returned by the fourth CSP server, deletes the file information of the file to be deleted stored in the second UCD server and returns the file deletion response to the first CSP server;

The first CSP server receives the file deletion response returned by the second UCD server, and sends the file deletion response to the first terminal.

In combination with the sixth possibility and the seventh possibility of the first aspect of the embodiment of the present invention, the file deletion request further includes: the number of file blocks of the file to be deleted, and the identifier of the second UCD server; the first CSP The server determines that the file corresponding to the identifier of the file to be deleted is divided into blocks, and obtaining the identifier of the second UCD server is specifically: the first CSP server determines that the file to be deleted in the file deletion request is divided. The number of file blocks is greater than 1, and the identification of the second UCD server is obtained from the file deletion request; or, the first CSP server determines that the file corresponding to the identification of the file to be deleted is divided into blocks, And obtaining the identification of the second UCD server is specifically: the first CSP server obtains the information of the file to be deleted corresponding to the identification of the file to be deleted according to the identification of the file to be deleted, and the required The information of the deleted file includes: the identifier of the file to be deleted, the identifier of the second UCD server, and the number of file blocks of the file to be deleted; the first CSP server determines that the stored file needs to be deleted The number of file blocks into which the file is divided is greater than 1, and the identifier of the second UCD server is obtained from the information of the file to be deleted.

The second aspect of the embodiment of the present invention provides a method for providing a file, including: the unified cloud disk UCD server receives the file acquisition request sent by the first cloud service provider CSP server, and the file acquisition request carries the identifier of the original file; according to the The identification of the original file obtains the information of the stored original file corresponding to the identification of the original file, and the information of the original file includes the identification of the second CSP server storing the file block, the file block identification stored by the second CSP server, and The order of the file blocks in the original file; according to the identification of the second CSP server, obtain the file block identification corresponding to the storage of the second CSP server from the second CSP server indicated by the identification of the second CSP server file blocks; according to the order of the file blocks obtained from the second CSP server in the original file, each file block obtained from the second CSP server is merged into the original file, and the original The file is provided to the first terminal.

In combination with the first possibility of the second aspect of the embodiment of the present invention, the providing the original file to the first terminal includes: returning a file acquisition response to the first CSP server, the file acquisition response carrying the original file; The file acquisition response is used to indicate that the first CSP server receives the file acquisition response and sends it to the first terminal; or, returns a file acquisition response to the first CSP server, and the file acquisition response carries the The storage address of the original file in the UCD server; the file acquisition response is used to instruct the first CSP server to send the file acquisition response to the first terminal, and instruct the first terminal to send the file acquisition response to the first terminal according to the The storage address obtains the original file.

In combination with the second aspect of the embodiment of the present invention or the first possible second possibility, after the UCD server logs in the second terminal through the user's registration information on the UCD server, the method further includes: receiving the The file upload request, the file upload request carries the size of the original file that the user needs to upload; obtain the information of the third CSP server registered by the user; according to the information of the third CSP server and the size information of the original file Determine the second CSP server for uploading the file blocks of the original file, and upload the file blocks of the original file to the second CSP server after receiving the original file sent by the second terminal.

In combination with the second possible third possibility of the second aspect of the embodiment of the present invention, the information of the third CSP server includes the user's available storage space in the third CSP server and the maximum supported by the third CSP server. The size of the file; the second CSP server determining the file block for uploading the original file according to the information of the third CSP server and the size information of the original file is specifically: determining that the available storage space is larger than that of the original file size, and the third CSP server whose maximum file size supported by the third CSP server is larger than the size of the original file is used as the second CSP server for uploading the file block; the uploading the file block to the second The CSP server is specifically: uploading the original file as a file block to the second CSP server; or, determining the file block for uploading the original file according to the information of the third CSP server and the size information of the original file The second CSP server is specifically: determining at least two third CSP servers whose available storage space is greater than the size of the largest file supported by the third CSP server as the second CSP server for uploading file blocks, according to the determined the size of the largest file supported by at least two second CSP servers, dividing the original file into at least two file blocks, and uploading the at least two file blocks to the at least two second CSP servers respectively, the The size of the file block is smaller than the size of the largest file supported by the second CSP server.

In combination with the second possible third possibility of the second aspect of the embodiment of the present invention, after receiving the original file sent by the second terminal and before uploading the file blocks of the original file to the second CSP server , the method further includes: storing the information of the original file, the information of the original file including: the identification of the original file, the number of file blocks into which the original file is divided, and the file block identification of each file block, and storing the The identifier of the second CSP server of the file block, and the order of the file blocks in the original file.

In combination with the third possibility and the fourth possibility of the second aspect of the embodiment of the present invention, the method further includes:

Sending the identification of the UCD server, the identification of the file block, and the order of the file blocks in the original file to the second CSP server according to the identification of the second CSP server storing the file block.

In combination with any of the above-mentioned possible fifth possibilities of the second aspect of the embodiment of the present invention, the method further includes: receiving a file deletion request sent by the first CSP server, where the file deletion request carries the identifier of the file to be deleted; according to the The identification of the file to be deleted obtains the stored information of the file to be deleted corresponding to the identification of the file to be deleted, and the information of the file to be deleted includes the fourth CSP storing the file block of the file to be deleted The identifier of the server, the identifier of the file block stored by each fourth CSP server; according to the identifier of the fourth CSP server, a file block deletion request is sent to the fourth CSP server, and the file block deletion request carries the first file block deletion request The identification of the file log stored by the fourth CSP server, the file deletion request is used to instruct the fourth CSP server to delete the file block and the information of the file block corresponding to the file block identification stored by the fourth CSP server; receiving the The file block deletion response sent by the fourth CSP server; delete the information of the file to be deleted stored in the UCD server, and return the file deletion response to the first CSP server, and the file deletion response is used to indicate the first CSP server Send the file deletion response to the first terminal.

The third aspect of the embodiment of the present invention provides a cloud service provider CSP server including: a receiving unit, configured to log in to the CSP server after the first terminal uses the user's registration information on the CSP server, and the CSP server In the process of providing services to the first terminal, receiving a file download request sent by the first terminal, the file download request carrying the identifier of the original file, and sending the identifier of the original file to the determining and obtaining unit; Determining an acquisition unit, configured to receive the identifier of the original file sent by the receiving unit, determine that the original file corresponding to the identifier of the original file is divided into blocks, and acquire the first unified file block uploaded to the original file The identification of the cloud disk UCD server, and the identification of the first UCD server is sent to the sending unit; the sending unit is used to receive the identification of the first UCD server sent by the determining receiving unit, and according to the first The identification of the UCD server sends a file acquisition request to the first UCD server, and the file acquisition request carries the identification of the original file; the file acquisition request is used to instruct the first UCD server according to the identification of the original file Acquiring the information of the stored original file, and according to the identification of the second CSP server corresponding to the file block in the information of the original file, obtaining the file block from the second CSP server indicated by the identification of the second CSP server, and storing the The obtained file blocks are synthesized into an original file; the receiving unit is further configured to receive the file obtaining response returned by the first UCD server, and send the file obtaining response to the sending unit, and the sending unit further uses receiving the file acquisition response sent by the receiving unit, and sending the file acquisition response to the first terminal, so as to instruct the first terminal to acquire the original file through the file acquisition response.

In combination with the first possibility of the third aspect above, the server further includes a storage unit; the receiving unit is further configured to receive the query request sent by the first terminal before receiving the file download request sent by the first terminal, and sending the query request to the determination acquisition unit; the determination acquisition unit is further configured to receive the query request sent by the receiving unit, and obtain the user's registration information in the first CSP server according to the The file block information stored by the user in the storage unit, the file block information includes the identification of the first UCD server and the identification of the original file to which the file block belongs, and combines the identification of the original file with the first The identification of the UCD server is sent to the sending unit; the sending unit is further configured to receive the identification of the original file sent by the determination acquisition unit and the identification of the first UCD server, according to the identification of the first UCD server The identification sends a file block query request to the first UCD server, and the file block query request includes the identification of the original file to which the file block belongs; the receiving unit is further configured to receive the returned by the first UCD server The information of the original file, the information of the original file returned includes: the name of the original file, the identification of the original file and the identification of the first UCD server and the number of file blocks that the original file is divided into, and the information of the original file sent to the sending unit and the storage unit; the storage unit is used to receive the information of the original file sent by the receiving unit, and store the information of the original file; the sending unit is further used to receive the received The information of the original file sent by the unit, and the name of the original file and the identifier of the original file in the information of the original file are sent to the first terminal, or the information of the original file is sent to the Describe the first terminal.

In combination with the first possible second possibility of the third aspect above, the file block information further includes a file block identification bit; the sending unit sends a file block query to the first UCD server according to the identification of the first UCD server Before the request, the determination acquisition unit further determines that the file block identification bit is an original file division identification.

In combination with any of the above possible third possibilities of the third aspect of the embodiment of the present invention,

The file download request further includes: the number of file blocks that the original file is divided into, and the identification of the first UCD server; the determination acquisition unit determines that the original file corresponding to the identification of the original file is divided into blocks, and Obtaining the identification of the first unified cloud disk UCD server is specifically: the first CSP server determines that the number of file blocks in which the original file is divided is greater than 1, and obtains the identification of the first UCD server from the file download request ;or

The determining and obtaining unit determines that the original file corresponding to the original file identifier is divided into blocks, and obtaining the identifier of the first unified cloud disk UCD server is specifically: the first CSP server obtains the storage according to the identifier of the original file The information of the original file corresponding to the identification of the original file, the information of the original file includes: the identification of the original file and the identification of the first UCD server and the number of file blocks that the original file is divided into; the first CSP server It is determined that the number of file blocks into which the original file is divided is greater than 1, and the identifier of the first UCD server is acquired from the information of the original file.

In combination with any of the above-mentioned possible fourth possibilities of the third aspect of the embodiments of the present invention,

The receiving unit is further configured to receive the upload block request sent by the first UCD server; the upload block request includes the file block of the original file and the file block information generated by the first UCD server, and the user Registration information on the first CSP server;

The storage unit is further configured to receive the block upload request sent by the receiving unit, store the file block, and map and store the file block information and the user's registration information on the first CSP server.

In combination with any of the above-mentioned possible fifth possibilities of the third aspect of the embodiment of the present invention, the receiving unit is further used for the file deletion request sent by the first terminal, the file deletion request carries the identifier of the file to be deleted, and the The identification of the file to be deleted is sent to the determination acquisition unit;

The determining and obtaining unit is further configured to receive the identification of the file to be deleted sent by the receiving unit, determine that the file to be deleted corresponding to the identification of the file to be deleted is divided into blocks, and obtain and upload the file to be deleted. The identification of the second UCD server of the file block of the file, and sending the identification of the second UCD server to the sending unit;

The sending unit is further configured to receive the identification of the second UCD server sent by the determination acquisition unit, and send the file deletion request to the second UCD server according to the identification of the second UCD server, and the file deletion request It is used to instruct the second UCD server to send a file block deletion request to the fourth CSP server storing the file block of the file to be deleted, and delete the file block after receiving the file block deletion response returned by the fourth CSP server. The second UCD server stores the information of the file to be deleted and returns a file deletion response to the first CSP server;

The receiving unit is further configured to receive the file deletion response returned by the second UCD server, and send the file deletion response to the sending unit;

The sending unit is further configured to receive the file deletion response sent by the receiving unit, and send the file deletion response to the first terminal.

In combination with the fifth possibility and the sixth possibility of the third aspect of the embodiment of the present invention, the file deletion request further includes: the number of divided file blocks of the file to be deleted, and the identifier of the second UCD server; the determining and obtaining unit Determining that the original file corresponding to the identifier of the file to be deleted is divided into blocks, and obtaining the identifier of the second UCD server is specifically: determining that the number of file blocks of the file to be deleted in the file deletion request is greater than 1 , and obtain the identifier of the second UCD server from the file deletion request; or

The determining and obtaining unit determines that the file corresponding to the identifier of the file to be deleted is divided into blocks, and obtaining the identifier of the second UCD server is specifically: the first CSP server acquires and stores the file according to the identifier of the file to be deleted. The information of the file to be deleted corresponding to the identifier of the file to be deleted, the information of the file to be deleted includes: the identifier of the file to be deleted, the identifier of the second UCD server, and the file to be deleted The number of divided file blocks of the file; determine that the stored number of divided file blocks of the file to be deleted is greater than 1, and obtain the identifier of the second UCD server from the information of the file to be deleted.

The fourth aspect of the present invention provides a unified cloud disk UCD server including:

A receiving unit, configured to receive a file acquisition request sent by the CSP server of the first cloud service provider, where the file acquisition request carries the identifier of the original file; and send the identifier of the original file to the determination acquisition unit;

The determining and acquiring unit is configured to receive the identifier of the original file sent by the receiving unit, acquire the stored information of the original file corresponding to the identifier of the original file according to the identifier of the original file, and the information of the original file The information includes the identification of the second CSP server storing the file block, the file block identification stored by the second CSP server and the order of the file block in the original file; and according to the identification of the second CSP server, from the second The second CSP server indicated by the identifier of the CSP server obtains the file block corresponding to the file block ID stored by the second CSP server; and sends the file block and the order of the file block in the original file to the sending unit;

The sending unit is configured to receive the file blocks sent by the determining and obtaining unit and the order of the file blocks in the original file, and obtain each file block from the second CSP server according to the order of the file blocks in the original file. The file blocks of are merged into the original file, and the original file is provided to the first terminal.

In combination with the first possibility of the fourth aspect of the present invention, the sending unit providing the original file to the first terminal specifically includes:

Returning a file acquisition response to the first CSP server, the file acquisition response carrying the original file; the file acquisition response is used to instruct the first CSP server to receive the file acquisition response and send it to the first terminal; or

Returning a file acquisition response to the first CSP server, the file acquisition response carrying the storage address of the original file in the UCD server; the file acquisition response is used to instruct the first CSP server to obtain the file sending a response to the first terminal, and instructing the first terminal to acquire the original file according to the storage address.

In combination with the fourth aspect of the present invention or the first possible second possibility, the receiving unit is further configured to receive the message sent by the second terminal after the second terminal logs in to the UCD server through the user's registration information on the UCD server. A file upload request, the file upload request carries the size of the original file to be uploaded by the user;

The determining and acquiring unit is further configured to acquire information of a third CSP server registered by the user, and determine the first file block used for uploading the original file according to the information of the third CSP server and the size information of the original file. Two CSP servers;

The receiving unit is further configured to receive the original file sent by the second terminal, and send the original file to the sending unit;

The sending unit is further configured to receive the original file sent by the receiving unit, and upload the file blocks of the original file to the second CSP server determined by the determining and obtaining unit.

In the second possible third possibility of the fourth aspect of the present invention, the information of the third CSP server includes the user's available storage space on the third CSP server and the size of the largest file supported by the third CSP server ;

The determining and obtaining unit determining the second CSP server for uploading the file block of the original file according to the information of the third CSP server and the size information of the original file is specifically: determining that the available storage space is larger than the size of the original file , and the third CSP server whose maximum file size supported by the third CSP server is larger than the size of the original file is used as the second CSP server for uploading file blocks; the sending unit sends the file blocks of the original file Uploading to the second CSP server determined by the determining and obtaining unit is specifically: uploading the original file as a file block to the second CSP server; or, the determining and obtaining unit according to the information of the third CSP server and Determining the second CSP server for uploading the file blocks of the original file based on the size information of the original file is specifically: determining at least two third CSP servers whose available storage space is larger than the maximum file size supported by the third CSP server as The second CSP server for uploading the file block divides the original file into at least two file blocks according to the determined maximum file size supported by the at least two second CSP servers, and the size of the file block is smaller than the determined The size of the largest file supported by the second CSP server; the sending unit uploads the file blocks of the original file to the second CSP server determined by the determining and obtaining unit, specifically: uploading the at least two file blocks Upload to the at least two second CSP servers respectively.

In a fourth possibility in combination with the third possibility of the fourth aspect of the present invention, the server further includes a storage unit;

The storage unit is used for storing the information of the original file, and the information of the original file includes: the identification of the original file, the number of file blocks into which the original file is divided, and the file block identification of each file block, and storing the The identifier of the second CSP server of the file block, and the order of the file blocks in the original file.

In combination with the fifth possibility of the fourth possibility of the fourth aspect of the present invention, the sending unit is further configured to send the UCD server identifier, file The block identifier and the order of the file blocks in the original file are sent to the second CSP server.

In combination with the sixth possibility of any of the above-mentioned possibilities in the fourth aspect of the present invention, the server further includes a deletion unit;

The receiving unit is further configured to receive a file deletion request sent by the first CSP server, wherein the file deletion request carries the identifier of the file to be deleted;

The determining and acquiring unit is further configured to acquire the information of the file to be deleted corresponding to the identifier of the file to be deleted stored in the storage unit according to the identifier of the file to be deleted, and the information of the file to be deleted is Including the identification of the fourth CSP server storing the file block of the file to be deleted, the identification of the file block stored by each fourth CSP server, and sending the information of the file to be deleted to the sending unit;

The sending unit is further configured to receive the information of the file to be deleted sent by the determination and acquisition unit, and send a file block deletion request to the fourth CSP server according to the identifier of the fourth CSP server, and the file block deletion The request carries the identifier of the file log stored by the fourth CSP server, and the file deletion request is used to instruct the fourth CSP server to delete the file block and the file block corresponding to the file block identifier stored by the fourth CSP server Information;

The receiving unit is further configured to receive a file block deletion response sent by the fourth CSP server;

The deletion unit is used to delete the information of the file to be deleted stored in the storage unit;

The sending unit is further configured to return a file deletion response to the first CSP server, where the file deletion response is used to instruct the first CSP server to send the file deletion response to the first terminal.

The fifth aspect of the embodiment of the present invention provides a CSP server, including: a transceiver, a memory, and a processor;

The transceiver is used to receive the information sent by the first terminal after the first terminal logs into the CSP server through the user's registration information on the CSP server, and the CSP server provides services to the first terminal. A file download request, where the file download request carries the identifier of the original file;

The memory is used to store various programs and applications, and execute the functions of the programs and applications under the call of the processor;

The processor is used to call various programs and applications stored in the memory, and determine that the original file corresponding to the identifier of the original file is divided into blocks, and obtain the first unified cloud disk UCD server that uploads the file blocks of the original file Identification; send a file acquisition request to the first UCD server according to the identification of the first UCD server, the file acquisition request carries the identification of the original file; the file acquisition request is used to indicate the first UCD server Acquire the information of the stored original file according to the identifier of the original file, and according to the identifier of the second CSP server storing the file block in the information of the original file, from the second CSP server indicated by the identifier of the second CSP server Obtaining file blocks, and synthesizing the obtained file blocks into an original file;

The transceiver is further used for the file acquisition response returned by the first UCD server, and sends the file acquisition response to the first terminal, so as to instruct the first terminal to acquire the file acquisition response through the file acquisition response. Original file.

The fifth aspect of the embodiment of the present invention provides a UCD server, including: a transceiver, a memory, and a processor;

The transceiver is used to receive the file acquisition request sent by the first cloud service provider CSP server, and the file acquisition request carries the identifier of the original file;

The memory is used for various programs and applications, and the functions of the programs and applications are executed under the call of the processor;

The processor is used to call various programs and applications stored in the memory, and obtain the stored original file information corresponding to the original file identifier according to the original file identifier, and the original file information includes storage file blocks The identifier of the second CSP server, the identifier of the file blocks stored by the second CSP server and the order of the file chunks in the original file, according to the identifier of the second CSP server, from the first indicated by the identifier of the second CSP server The second CSP server obtains the file blocks corresponding to the file block identifiers stored by the second CSP server; according to the order of the file blocks obtained from the second CSP server in the original file, each file block from the second CSP The file chunks obtained by the server are merged into said original file;

The transceiver is further configured to provide the original file to the first terminal.

From the above solution, it can be seen that in the process of using the service provided by the CSP server, the terminal does not need to establish a connection with the UCD server, and the segmented file uploaded by the user through the UCD server can be obtained through the connection with the CSP server Finally, the process of establishing a connection between the terminal and the UCD server is avoided, and user operations are simplified, thereby improving user experience.

Description of drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For Those of ordinary skill in the art can also obtain other drawings based on these drawings without any creative effort.

Fig. 1 is the method flowchart of the file download provided by the embodiment of the present invention;

Fig. 2 is the flow chart of the method for the terminal to upload files through the UCD client provided by the embodiment of the present invention;

Fig. 3 is the schematic diagram of storing the original file A and the original file B uploaded by the terminal through the UCD server through the UCD server in the CSP server according to the embodiment of the present invention

4 is a flowchart of a method for obtaining file information stored in each CSP server by the user when the user logs in to the CSP server B through a terminal provided by an embodiment of the present invention;

Fig. 5 is a schematic diagram of the user's file stored in the CSP server provided to the user by the CSP server;

Fig. 6 is the flow chart of the method for obtaining the file uploaded by the UCD server provided by the embodiment of the present invention;

FIG. 7 is a flowchart of a method for a terminal to delete a file through a CSP server according to an embodiment of the present invention;

Figure 8 is a flowchart of a method for providing files provided by an embodiment of the present invention

FIG. 9 is a schematic structural diagram of a CSP server provided by an embodiment of the present invention;

Fig. 10 is another schematic structural diagram of the CSP server provided by the embodiment of the present invention;

FIG. 11 is a schematic structural diagram of a UCD server provided by an embodiment of the present invention;

Fig. 12 is another schematic structural diagram of the UCD server provided by the embodiment of the present invention.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

Fig. 1 is the flow chart of the method for file download provided by the embodiment of the present invention, including the following steps:

Step 101. During the process of providing services to the first terminal, the first CSP server receives a file download request sent by the first terminal, and the file download request carries the identifier of the original file;

Step 102, the first CSP server determines that the original file corresponding to the identifier of the original file is divided into blocks, and obtains the identifier of the unified cloud disk UCD server;

Step 103, the first CSP server sends a file acquisition request to the UCD server according to the identifier of the UCD server, and the file acquisition request carries the identifier of the original file; the file acquisition request is used to indicate the The UCD server obtains the information of the stored original file according to the identifier of the original file, and according to the identifier of the second CSP server corresponding to the file block in the information of the original file, from the identifier indicated by the second CSP server The second CSP server obtains the file blocks, and synthesizes the obtained file blocks into an original file;

Step 103. The first CSP server receives the file acquisition response returned by the UCD server, and sends the file acquisition response to the first terminal, so as to instruct the first terminal to obtain the file acquisition response through the file acquisition response. Describe the original document.

As can be seen from the above embodiments, it can be seen from the above scheme that in the process of using the service provided by the CSP server, the terminal does not need to establish a connection with the UCD server, and can obtain the information passed by the user through the UCD through the connection with the CSP server. After the server uploads the divided files, the process of establishing a connection between the terminal and the UCD server is avoided, user operations are simplified, and user experience is improved.

Further, the obtaining the original file by the first terminal through the file obtaining response specifically includes: the file obtaining response carries the original file, and the first terminal obtains the original file from the file obtaining response; or , the file acquisition response carries the storage address of the original file in the first UCD server; the first terminal acquires the original file from the first UCD server according to the storage address.

It is worth noting that, for the convenience of description in this embodiment of the present invention, the UCD server that receives the file deletion request is called the second UCD server, and the UCD server that receives the download request and the file upload request is called the first UCD server. The CSP server registered by the user is called the third CSP server, and the CSP server determined by the CSP server registered by the user to store the original file is called the second CSP server. The CSP server that stores the original file (file to be downloaded) is called the second CSP server, and the CSP server that stores the file to be deleted is called the fourth CSP server. The identifier of the file to be uploaded or downloaded is called the identifier of the original file, the identifier of the file to be deleted is called the identifier of the file to be deleted, the information corresponding to the identifier of the original file is called the information of the original file, and the identifier of the file to be deleted is called the identifier of the original file. The information corresponding to the identifier of the file is called the information of the file to be deleted. The terminal connected to the CSP server is called a first terminal, and the terminal connected to the UCD server is called a second terminal.

Fig. 2 is the flow chart of the method for resuming session content transmission provided by the embodiment of the present invention, including the following steps:

Step 200, the second terminal sends a file upload request to the first UCD server through the UCD client, and the file upload request carries the size information of the original file to be uploaded by the user.

Before performing this step, the terminal logs into the first UCD server through the registration information of the user in the first UCD server. The terminal is called the second terminal.

Step 201, the first UCD server obtains the information of the CSP server registered by the user.

Specifically, the first UCD server stores the registration information of the user at the third CSP server. As mentioned above, in the embodiment of the present invention, the CSP servers registered by the user are collectively referred to as the third CSP server. The registration information of the user at the third CSP server includes the identifier of the third CSP server (such as the connection address of the third CSP server), the account name and password registered by the user at the third CSP server. The first UCD server obtains the information of the third CSP server from the third CSP server according to the registration information of the user at the third CSP server, and the information of the third CSP server includes the available information of the user at the CSP server. storage space, the maximum file size supported by the third CSP server, and/or the connection speed of the third CSP server.

In this embodiment, it is assumed that the user is registered at CSP server A and CSP server B respectively, therefore, the first UCD server has stored the registration information of the user at CSP server A and CSP server B, and CSP server C, and sends CSP server A respectively and CSP server B to obtain the information of CSP server A and CSP server B. CSP server A, CSP server C and CSP server B are referred to as a third CSP server.

Step 202, the first UCD server determines the second CSP server for uploading the file blocks of the original file according to the information of the third CSP server and the size information of the original file.

Step 203, the first UCD server sends a file upload request response to the second terminal.

Step 204, the second terminal uploads the original file to the UCD server.

Step 205, the first UCD server divides the original file, that is, divides the original file into blocks.

After the file upload is completed, the first UCD server blocks the original file according to the determined information of the second CSP server, and generates the information of the original file, such as the Metadata of the original file, and saves the information of the original file in the first at the UCD server.

As an example, the information of the third CSP server includes the user's available storage space on the third CSP server and the size of the largest file supported by the third CSP server;

The determining the second CSP server for uploading the file block of the original file according to the information of the third CSP server and the size information of the original file is specifically: determining that the available storage space is larger than the size of the original file, and the The third CSP server whose maximum file size supported by the third CSP server is greater than the size of the original file is used as the second CSP server for uploading the file block; the uploading the file block to the second CSP server is specifically : uploading the original file as a file block to the second CSP server; or, determining the second CSP for uploading the file block of the original file according to the information of the third CSP server and the size information of the original file The server is specifically: determining at least two third CSP servers whose available storage space is greater than the size of the largest file supported by the third CSP server as the second CSP server for uploading file blocks, according to the determined at least two third CSP servers The size of the largest file supported by two CSP servers divides the original file into at least two file blocks, and uploads the at least two file blocks to the at least two second CSP servers respectively, the size of the file block smaller than the maximum file size supported by the second CSP server.

For example, in this embodiment, the first UCD server determines that CSP server A and CSP server among the three CSP servers registered by the user (that is, the third CSP server) are used as the second CSP server for storing file blocks, and the original The file is divided into at least two file blocks, and the size of each file is smaller than the maximum file size supported by CSP server A or smaller than the maximum file size supported by CSP server B. Of course, the UCD can also divide the original file into blocks according to other strategies, which are not limited in this embodiment of the present invention.

Further, the UCD server storing the information of the original file may include: storing the information of the original file, and the information of the original file includes: the identifier of the original file, the number of file blocks into which the original file is divided, and the file block number of each file block ID, and the ID of the second CSP server storing the file blocks, and the order of the file blocks in the original file.

Optionally, the original file information stored by the first UCD server may also include the size of the original file and the time when the original file was modified. It should be noted that, in this embodiment of the present invention, the original file refers to the file sent by the second end to the first UCD server.

Specifically, the information of the original file is shown in Table 1:

Table 1 Information of the original document

The ChunkInfo of each file block contained in the information of the original file includes: the file block identifier (the identifier that can uniquely identify the file block), the CSP information storing the file block (such as the name of the CSP, or the address of the CSP) and the location of the file block in the original file in the order. Further, the file block information may also include the file block size and other file block information, such as the name of the file block, etc. This embodiment of the present invention does not limit it here. In addition, for the file block identifier, if the first UCD server does not divide the original file into blocks, the file block identifier may also be an identifier of the original file. Specifically, the file block information may be shown in Table 2:

Table 2. File block information

The UCD server generates file block information Chunkdata for each file block according to the information of the original file. Specifically, the information of the file block includes: the file block identifier, the source of the file block (such as the information of the first UCD server sending the file block to the CSP), and the identifier of the original file to which the file block belongs. Further, the information of the file block may also include a file block identification bit, which is used to indicate whether it is a divided file block or an original file. Among them, the information contained in the file block information is shown in Table 3:

Table 3 Information of file blocks

As an example, when the UCD server transmits the original file to the second CSP server, that is, when the UCD does not divide the original file into blocks, the file block identifier is the identifier of the original file, and the value of the file block identifier bit is 0. When the UCD server sends the divided file blocks to the second CSP server: the value of the file block identification bit is 1

Step 206 or 206', the first UCD server uploads the file chunk to the second CSP server through the upload chunk request server UploadChunkRequest, wherein the upload chunk request includes the file chunk of the original file and the file chunk generated by the first UCD server information, and the registration information of the user on the first CSP server.

Specifically, the first UCD server uploads the file block to the second CSP server according to the CSP server identifier in the original file information. Further, the upload block request also carries the user's account name and password registered on the second CSP server.

Step 207 or 207', after the second CSP server receives the file block and the corresponding Chunkdata data of the file block, it verifies the first UCD server according to the account name and password in the upload block request, and stores the file block after the verification is passed , and map and store the file chunk information and the registration information of the user on the first CSP server, and return an UploadChunkResponse message to the UCD server.

When the UCD server sends different file blocks and Chunkdata data to different second CSP servers, and receives all corresponding return confirmation messages, it confirms that different file blocks of the original file have been stored in different second CSP servers respectively place.

As another alternative, before the first UCD server executes step 206 or 206, it first establishes a connection with the second CSP server through the account information registered by the user in the CSP server, and then sends an upload block request to the CSP server through the connection To upload the file block, so that the second CSP server stores the file block, and maps and stores the file block information and the registration information of the user in the first CSP server, and returns the server upload block response server to the UCD server UploadChunkResponse message.

As an example, assume that the terminal needs to store a file in the CSP server: /home/test/A, referred to as the original file A. The UCD client sends a file upload request message to the first UCD server, and the file upload request message carries the size information of the user's original file on the UCD server, /home/test/A. After receiving the file upload request message sent by the terminal through the UCD client, the first UCD server queries the information of the third CSP server registered by the user according to the account name registered by the user on the UCD server. In this example, the user has registered on CSP server A, CSP server B and CSP server C respectively, and the second CSP server includes CSP server A, CSP server B and CSP server C. The UCD server inquires about the information of the third CSP server registered by the user as follows: sending user available resource query requests to CSP server A, CSP server B, and CSP server C respectively, and the user available resource query requests carry information stored in the first UCD server. The account name and password registered by the user on the CSP server. The first UCD server receives the responses returned by CSP server A, CSP server B and CSP server C respectively, which include: the storage space available to the user in the CSP server, the maximum file size supported by the CSP server. Further, the response can also include the connection speed. The first UCD server determines the CSP of the uploaded file according to the description in step 202, for example, according to the obtained information of the CSP server and the size information of the original file, that is, determines the second CSP server. Assume that in this embodiment, the first UCD server determines to store the original file, /home/test/A, in blocks on CSP server A, CSP server B, and CSP server C. Then the second CSP server includes CSP server A, CSP server B and CSP server C. Then, the UCD server sends an upload file request response to the UCD Client, allowing the UCD Client to upload the original file /home/test/A. After receiving the original file /home/test/A uploaded by the user terminal through the UCD client, execute step 205, divide the original file /home/test/A into chunks, and divide the chunked files through steps 206-207 Blocks A1-A3 are sent to CSP server A, CSP server B and CSP server C respectively.

In another embodiment, it is assumed that the user also needs to upload the original file /home/test/B, referred to as the original file B. The first UCD server selects CSP server A as the second CSP server to store the original file according to the size of the original file B and the acquired information of each CSP server, and does not block the original file B.

The storage schematic diagram of the original file A and the original file B uploaded by the user through the UCD client through the first UCD server on the CSP server is shown in Figure 3: as shown in Figure 3, the original file A is divided into file blocks A1- After A3, store them in CSP server A, CSP server B and CSP server C respectively. The original file B is only stored in the CSP server A via the first UCD server.

After the first UCD server receives the original file A, it is divided into blocks, and the information of the stored original file A is as shown in Table 4:

Table 4 Information of original file A

The first UCD server receives original file B, and the information of stored original file B is as shown in table 5:

Table 5 Information of original file B

After the first UCD server blocks the file blocks A1-A3 of the original file A, the information of the file blocks generated respectively for the file blocks A1-A3 is shown in the following table:

Table 6 Information of file block A1

ChunkID 4295294298cdf ChunkBit 1 source http://ucd-server.com/cloudstorage MetadataID df345gf56

Table 7 Information of file block A2

ChunkID 123973192feju ChunkBit 1 source http://ucd-server.com/cloudstorage MetadataID df345gf56

Table 8 Information of file block A3

ChunkID 873910748wev ChunkBit 1 source http://ucd-server.com/cloudstorage MetadataID df345gf56

The first UCD server did not divide the original file B into blocks, but the information of the uploaded CSP server according to:

Table 9 Information of original file B

ChunkID hf52987fd3 ChunkBit 0 source http://ucd-server.com/cloudstorage MetadataID 542jd989a3

FIG. 4 is a flow chart for the terminal to obtain the file information stored by the user in each CSP server in the CSP server provided by the embodiment of the present invention after the user logs in through the terminal and provides services for the terminal, including the following steps:

Step 400, the first terminal logs in to the CSP server B through the user's registration information on the CSP server B, and in the process of receiving the service provided by the CSP server B, sends a file query request QueryRequest to the CSP server B to view the files stored by the user on the CSP server B information.

It should be noted that the terminal in this process may be a terminal including a UCD client, or a terminal not including a UCD client. For convenience of description, in this embodiment, the terminal connected to the CSP server is referred to as the first terminal. The CSP server to which the first terminal is connected is referred to as the first CSP server.

Step 401, obtaining the file block information stored by the user in the first CSP server according to the registration information of the user in the first CSP server;

Specifically, the CSP server B queries whether the Chunkdata data corresponding to each file stored by the user contains the original file segmentation identifier according to the registration information of the user on the CSP server B;

When the Chunkdata information does not contain the original file segmentation identifier, for example, when the ChunkBit is 0, it indicates that the content of the file corresponding to the Chunkdata information is a complete file, and step 406 is directly executed. When the Chunkdata information contains the original file segmentation identifier, for example, when ChunkBit is 1, it indicates that the file content corresponding to the Chunkdata information is a file block of a certain file, then obtain the identifier of the UCD server according to the Source information in the Chunkdata information (such as sending The first UCD server identification of the file block to the CSP server B, such as the address of the first UCD server), and the identification of the original file described in the file block, and step 402 is executed.

Step 402: Send a file chunk query request QueryChunkRequest to the first UCD server according to the identifier of the first UCD server, where the file chunk query request includes the identifier of the original file to which the file chunk belongs.

Step 403, the first UCD server obtains the information of the original file stored in the first UCD server according to the received original file identifier. The information of the original file includes: the name of the original file, the identifier of the original file and the identifier of the first UCD server, and the number of file blocks into which the original file is divided. Optionally, the original file information stored by the first UCD server may also include the size of the original file and the time when the original file was modified. The first UCD server responds to the QueryChunkResponse through the file block query, and sends the Metadata information of the original file to the server of CSP B.

Step 404: Send the name of the original file and the identifier of the original file to the first terminal, and store the information of the returned original file; or send the information of the original file to the first terminal terminal.

As an optional manner, the CSP server B may also generate a unified view according to the received information of the original file, and send the information of the original file to the terminal in the form of the unified view.

Of course, the CSP in this process does not need to query the ChunkBit information in the ChunkData information, but directly obtains the information of the original file from the UCD server according to the Source information in the Chunkdata.

As an example, assume that the first terminal sends a query request QueryRequest to the CSP server A after logging in to the CSP server A, for example, a query button may be clicked on an interface provided by the CSP server. Specifically, it is a prior art that the user terminal sends a query request to the CSP server A, and the embodiment of the present invention will not be described in detail here. According to the user's registration information, such as the user's account name, the CSP server A obtains the file block information of the user's files A1 and B stored in the CSP server A. And through the information of the stored file A1, the ChunkBit of the Chunkdata corresponding to A1 is obtained as 1, that is, it is determined that the file block identification bit is the original file segmentation identification, indicating that A1 is the file block after the original file is divided. The CSP server A acquires and uploads the identification of the first UCD server and the identification of the original file to which the file block belongs according to the information of the stored file A1, and sends the information to the second through the identification http://ucdserver.com/cloudstorage of the first server. A UCD server sends a file block query request. Wherein, the file block query request carries the identifier MetadataID of the original file: df345gf56. After receiving the file block query request, the UCD server obtains the Metadata information corresponding to df345gf56 according to the MetadataID of the original file carried: df345gf56, and returns the Metadata information (Filename, ModifiedTime, Size, ChunkNum) to CSP server A. In addition, the CSP server A further obtains the information of the file B according to the user's account name, and obtains that the ChunkBit in the file block information of the file B is 0, and then determines that the file B stored by the CSP server is an original file. The CSP server generates a unified view according to the acquired information of the original file A and the file block information of the original file B, and provides it to the terminal.

Specifically, in this embodiment, FIG. 5 is a schematic diagram of the user's files stored in the CSP server provided by the CSP server to the user. As shown in Figure 5, be divided into two parts, the file list information uploaded directly by CSP, and the file information uploaded by the first UCD server, the described file information uploaded by the first UCD server includes: the title of original file, The identifier of the original file and the identifier of the first UCD server (such as the address of the first UCD server, etc.). Further, if the user uploads files through multiple first UCD servers, each first UCD server may be listed separately. This article will not go into details. As an optional method, before obtaining the information of the original file of the stored file, the CSP may not query the ChunkBit information in the information of the file block, but directly request the corresponding UCD server according to the information of the source of the file block. Metadata information.

Fig. 6 is the flow chart of the method for obtaining the file uploaded by the UCD server provided by the embodiment of the present invention, as shown in Fig. 6, comprising the following steps:

Step 600, the first terminal logs in to the CSP server B through the account information registered on the CSP server B, and obtains the information of the file stored by the user on the CSP server, as shown in Figure 5, and then sends a file download request to the CSP server B. The file download request carries the identifier of the original file and/or the name of the original file. Further, the file download request may also include information such as the number of file chunks (ChunkNum information), and/or the identifier of the first UCD server, and the modification time of the original file.

In step 601, the CSP server B determines whether the original file corresponding to the original file identifier is divided into file blocks according to the original file identifier.

Specifically, if the file download request contains information on the number of file blocks, and the number of file blocks is less than or equal to 1, it indicates that the original file corresponding to the original file identifier has not been divided into file blocks, and the user can download directly from the CSP through the terminal. The file corresponding to the identification of the original file will not be executed in the following steps. As an optional manner, if the file download request includes file block number information, and the file block number is greater than 1, the file download request may further include the identifier of the first UCD server, and step 602 is performed.

As another alternative, the CSP server B obtains the stored original file information corresponding to the original file ID according to the original file ID, and the original file information includes: the original file ID and the first The identification of the UCD server and the number of file blocks of the original file; the first CSP server determines that the number of file blocks of the original file is greater than 1, and obtains the first UCD server from the information of the original file logo. Then execute step 602.

Step 602: Send a file acquisition request to the first UCD server according to the identifier of the first UCD server, where the file acquisition request carries the identifier of the original file. The file acquisition request is used to instruct the first UCD server to acquire the information of the stored original file according to the identifier of the original file, and according to the identifier of the second CSP server storing the file block in the information of the original file, from The second CSP server indicated by the identifier of the second CSP server obtains the file blocks, and synthesizes the obtained file blocks into an original file.

Further, the first UCD server obtains the information of the original file stored in the UCD server according to the identifier of the received original file, the information of the original file includes the identifier of the second CSP server storing the file block, and the second CSP server stores The file block identifiers and the order of the file blocks in the original file.

Step 603 or step 603', according to the identification of the second CSP server, send a file chunk download request to the second CSP server storing the file chunk, and the file chunk download request carries ChunkID.

In step 604 or step 604', after receiving the file chunk download request, the second CSP server sends the file chunk corresponding to the ChunkID to the first UCD server, and sends a file chunk download response to the first UCD server.

As an optional manner, the file block may be carried in the file block download response and sent to the first UCD server.

Step 605: The first UCD server merges the file blocks obtained from the second CSP server into the original file according to the order of the file blocks obtained from the second CSP server in the original file.

Step 606, the first UCD server sends a file acquisition response to the CSP server B, and the file acquisition response carries the storage address of the merged file (that is, the original file) on the first UCD server, such as a uniform resource locator: Uniform Resource Locator, URL.

Step 607, the CSP server sends a file download response to the terminal, and the file download response carries the storage address of the merged file (that is, the original file) on the first UCD server.

Step 608, the terminal obtains the file from the first UCD server through the URL.

It is worth noting that: the first UCD server can also directly send the original file merged in step 605 to CSP server B in step 606, so that CSP server B can send the original file to the terminal in step 607. Thus step 608 is not executed.

As an example, after the terminal logs in to the CSP server B through the registered account information, according to the obtained schematic diagram, the user clicks the download button "Download" corresponding to the file /home/test/A, and sends a file download request to the CSP server A. The file download request carries the identifier of the original file /home/test/A and/or the number of file chunks (ChunkNum information). Since the ChunkNum in the file download request is greater than 1, the CSP server B determines that the file stored in the CSP server B is a block file, and then sends the file to the http://ucd server according to the identifier of the first UCD server contained in the file download request. .com/cloudstorage sends a file fetch request. The file acquisition request carries the metadata ID of the original file A: df345gf56. According to the MetadataID, the UCD server can obtain the stored information of the original file corresponding to df345gf56. According to the stored original file information, the UCD server determines that the original file A is divided into three file blocks, which are stored in CSP server A, CSP server B, and CSP server C respectively. Then, according to the ChunkID of each file block, the corresponding CSP The server sends file block download requests to download file blocks A1, A2, and A3 from the three CSPs respectively. After receiving the file blocks A1, A2, and A3, these three file blocks are combined into an original file according to the sequence information corresponding to each file block. Then, according to the storage location of the merged complete file, a download link is generated, sent to the CSP server A, and forwarded to the terminal through the CSP server A. The terminal directly downloads the file according to the link, and the file /home/test/A can be obtained.

Similarly, when the terminal logs in to CSP server B and clicks to download file block B, CSP server B queries and finds that the ChunkNum corresponding to the original file B is 1, indicating that the file has not been divided, and the user directly downloads the file from CSP server B/ home/test/B.

Fig. 7 is the flow chart of the method that can delete file through CSP server that the embodiment of the present invention provides, as shown in Fig. 7, comprises the following steps:

Step 700: After the user logs in to the CSP server B through the first terminal using the account information registered by the user on the CSP server B, obtain the schematic diagram of the file stored by the user on the CSP server by executing the process corresponding to FIG. 4 , as shown in FIG. B sends a file deletion request, and the file deletion request carries the identifier of the file to be deleted.

Specifically, the terminal may click a delete button corresponding to a certain file in the diagram to send a file deletion request to the first CSP server, such as CSP server B. The file deletion request includes the identifier (MetadataID) of the file to be deleted obtained from the unified view, and/or the file name of the file to be deleted, and/or the identifier of the second UCD server. Further, the file deletion request may also include the number of file blocks (ChunkNum information), and/or the identifier of the second UCD server, and the modification time of the file to be deleted, and may also include the source (source information), the number of file blocks (ChunkNum information).

Step 701, CSP server B sends a file deletion request to the second UCD server according to the identifier of the second UCD server included in the file deletion request, such as server DelFileRequestt. The file deletion request carries the identifier of the file to be deleted.

Specifically, before performing this step, the CSP server B determines that the file to be deleted corresponding to the identifier of the file to be deleted is divided into blocks, and obtains the second UCD server that uploads the file block of the file to be deleted. logo.

Further, the file deletion request further includes: the number of divided file blocks of the file to be deleted, and the identification of the second UCD server; the first CSP server determines the file corresponding to the identification of the file to be deleted is divided into blocks, and the identification of the second UCD server is obtained as follows: the first CSP server determines that the number of file blocks to be deleted in the file deletion request is greater than 1, and deletes the file from the file deletion request obtain the identity of the second UCD server; or

The first CSP server determines that the file corresponding to the identifier of the file to be deleted is divided into blocks, and obtaining the identifier of the second UCD server is specifically: the first CSP server obtains according to the identifier of the file to be deleted The stored information of the file to be deleted corresponding to the identifier of the file to be deleted, the information of the file to be deleted includes: the identifier of the file to be deleted, the identifier of the second UCD server, and the file to be deleted The number of divided file blocks of the file; the first CSP server determines that the stored number of divided file blocks of the file to be deleted is greater than 1, and obtains the second UCD from the information of the file to be deleted The server's ID.

Step 702 or step 702', the second UCD server sends a file chunk deletion request to the fourth CSP server storing the file chunks, such as the server DelChunkRequest, and the file chunk deletion request carries the identifier of the file record stored in the fourth CSP server The file deletion request is used to instruct the fourth CSP server to delete the file block and file block information corresponding to the file block identifier stored in the fourth CSP server.

Before performing this step, the second UCD server obtains the stored information of the file to be deleted corresponding to the identifier of the file to be deleted according to the identifier of the file to be deleted, and the information of the file to be deleted includes stored The identification of the fourth CSP server of the file block of the file to be deleted, and the identification of the file block stored by each fourth CSP server.

In step 703 or step 703', after receiving the file block deletion request, the fourth CSP server deletes the corresponding file block and the stored information of the file block according to the identifier of the file block. And send the file chunk deletion response server DelChunkResponse to the second UCD server. Further, the file block deletion response also includes an identifier of whether the file deletion is successful.

Step 704: After the second UCD server confirms that the response corresponding to the file block deletion request has been received, it deletes the information of the file to be deleted stored in the second UCD server, and sends a file deletion response CSPDelFileResponse to the CSP server B, carrying the identifier in the response bit, indicating that the file has been successfully deleted;

Specifically, before deleting the information of the file to be deleted stored in the second UCD server, the second UCD server needs to determine that all the fourth CSP servers have returned file block deletion responses, and the file block deletion responses all include the file successfully deleted. Identifier for deletion.

Step 705, the CSP server B sends a file deletion response DelFileResponse to the first terminal, and the response carries an identification bit, indicating that the file deletion is successful.

As can be seen from the above embodiments, through the embodiments of the present invention, the terminal does not need to directly connect to the UCD server, but under the situation of directly connecting to the CSP server, the user can be managed (downloaded, deleted) through the CSP server through the UCD client. The file uploaded by the terminal to the CSP server through the UCD server. In this way, it is convenient for users to manage files and improve user experience.

Figure 8 is a method for providing files provided by an embodiment of the present invention, including the following steps:

Step 801, the unified cloud disk UCD server receives the file acquisition request sent by the first cloud service provider CSP server, and the file acquisition request carries the identifier of the original file;

Step 802: Obtain the stored original file information corresponding to the original file ID according to the original file ID, the original file information includes the ID of the second CSP server storing the file block, and the second CSP server stores file block identifiers and the order of the file blocks in the original file;

Step 803, according to the identification of the second CSP server, obtain the file block corresponding to the file block identification stored in the second CSP server from the second CSP server indicated by the identification of the second CSP server;

Step 804, according to the order of the file blocks obtained from the second CSP server in the original file, merge each file block obtained from the second CSP server into the original file, and merge the original file provided to the first terminal.

In addition, the UCD server in this embodiment can also execute any step performed by the UCD server (including the first UCD server and the second UCD server) in the flow charts in FIGS. 1-7 , which will not be described in detail in this embodiment of the present invention.

The UCD server mentioned in this embodiment can enable the terminal to obtain the files uploaded to the CSP server through the UCD server through the CSP server, thereby improving user experience.

FIG. 9 is a schematic structural diagram of a CSP server provided by an embodiment of the present invention, including: a receiving unit 901 , a determination and acquisition unit 902 , a sending unit 903 , and a storage unit 904 . specific

The receiving unit 901 is configured to receive the message sent by the first terminal after the first terminal logs into the CSP server through the user's registration information on the CSP server, and the CSP server provides services to the first terminal. A file download request, wherein the file download request carries the identifier of the original file, and sends the identifier of the original file to the determining and obtaining unit; the determining and obtaining unit 902 is configured to receive the original file sent by the receiving unit the identification of the original file, determine that the original file corresponding to the identification of the original file is divided into blocks, and obtain the identification of the first unified cloud disk UCD server that uploads the file blocks of the original file, and use the identification of the first UCD server Send to the sending unit; the sending unit 903 is configured to receive the identification of the first UCD server sent by the determining receiving unit, and send a file acquisition request to the first UCD server according to the identification of the first UCD server, The file acquisition request carries the identifier of the original file; the file acquisition request is used to instruct the first UCD server to acquire the information of the stored original file according to the identifier of the original file, and according to the information of the original file The identification of the second CSP server corresponding to the file block in the file, obtaining the file block from the second CSP server indicated by the identification of the second CSP server, and synthesizing the obtained file block into an original file;

The receiving unit is further configured to receive the file acquisition response returned by the first UCD server, and send the file acquisition response to the sending unit, and the sending unit is further configured to receive the file acquisition response sent by the receiving unit response, and send the file acquisition response to the first terminal, so as to instruct the first terminal to acquire the original file through the file acquisition response.

Further, the CSP server further includes a storage unit 904; the receiving unit 901 is further configured to receive the query request sent by the first terminal before receiving the file download request sent by the first terminal, and send the The query request is sent to the determination and acquisition unit 902; the determination and acquisition unit 902 is further configured to receive the query request sent by the receiving unit, and obtain the user's information in the first CSP server according to the registration information of the user in the first CSP server. The file block information stored by the storage unit, the file block information includes the identification of the first UCD server and the identification of the original file to which the file block belongs, and the identification of the original file and the identification of the first UCD server The identification of the original file is sent to the sending unit 903; the sending unit 903 is further configured to receive the identification of the original file sent by the determination acquisition unit and the identification of the first UCD server, according to the identification of the first UCD server The identification sends a file block query request to the first UCD server, and the file block query request includes the identification of the original file to which the file block belongs; the receiving unit 901 is further configured to receive the returned by the first UCD server The information of the original file, the information of the original file returned includes: the name of the original file, the identification of the original file and the identification of the first UCD server and the number of file blocks that the original file is divided into, and the original file The information is sent to the sending unit 903 and the storage unit 904; the storage unit 904 is used to receive the information of the original file sent by the receiving unit, and store the information of the original file; the sending unit 903 further uses for receiving the original file information sent by the receiving unit, and sending the name of the original file and the identifier of the original file in the information of the original file to the first terminal, or sending the original file The information is sent to the first terminal.

Further, the file block information further includes a file block identification bit; before the sending unit 903 sends a file block query request to the first UCD server according to the identification of the first UCD server, the determining and obtaining unit further determines The file block identification bit is an original file division identification.

Further, the file download request further includes: the number of file blocks the original file is divided into, and the identifier of the first UCD server; the determining and obtaining unit 902 determines that the original file corresponding to the identifier of the original file is divided into Blocking, and obtaining the identifier of the first unified cloud disk UCD server is specifically: the first CSP server determines that the number of file blocks that the original file is divided into is greater than 1, and obtains the first file block from the file download request. The identification of the UCD server; or, the determining and obtaining unit 902 determines that the original file corresponding to the identification of the original file is divided into blocks, and obtaining the identification of the first unified cloud disk UCD server is specifically: the first CSP server according to The identification of the original file acquires the stored information of the original file corresponding to the identification of the original file, and the information of the original file includes: the identification of the original file and the identification of the first UCD server and the divided file blocks of the original file Quantity; the first CSP server determines that the number of file blocks into which the original file is divided is greater than 1, and obtains the identifier of the first UCD server from the information of the original file.

Further, the receiving unit 901 is further configured to receive the upload block request sent by the first UCD server; the upload block request includes the file block of the original file and the file block information generated by the first UCD server, and the registration information of the user in the first CSP server; the storage unit 904 is further configured to receive the upload block request sent by the receiving unit, store the file block and combine the file block information with the user The registration information mapping is stored in the first CSP server.

Further, the receiving unit 901 is further used for sending the file deletion request sent by the first terminal, the file deletion request carrying the identification of the file to be deleted, and sending the identification of the file to be deleted to the determining and obtaining unit The determining and obtaining unit 902 is further used to receive the identification of the file to be deleted sent by the receiving unit, determine that the file to be deleted corresponding to the identification of the file to be deleted is divided into blocks, and obtain and upload the required file The identifier of the second UCD server of the file block of the deleted file, and send the identifier of the second UCD server to the sending unit; the sending unit 903 is further configured to receive the second UCD server sent by the determination acquisition unit. The identification of the UCD server, according to the identification of the second UCD server, the file deletion request is sent to the second UCD server, and the file deletion request is used to instruct the second UCD server to store the file to be deleted. The fourth CSP server of the block sends a file block deletion request, and after receiving the file block deletion response returned by the fourth CSP server, deletes the information of the file to be deleted stored in the second UCD server and returns to the first CSP server File deletion response; the receiving unit 901 is further configured to receive the file deletion response returned by the second UCD server, and send the file deletion response to the sending unit; the sending unit 902 is further configured to receive the The file deletion response sent by the receiving unit, and sends the file deletion response to the first terminal.

Further, the file deletion request further includes: the number of divided file blocks of the file to be deleted, and the identification of the second UCD server; the determining and obtaining unit determines the original file corresponding to the identification of the file to be deleted is divided into blocks, and obtaining the identification of the second UCD server is specifically: determining that the file block number to be deleted in the file deletion request is greater than 1, and obtaining the second UCD server from the file deletion request The identification of the UCD server; or, the determination acquisition unit 902 determines that the file corresponding to the identification of the file to be deleted is divided into blocks, and obtaining the identification of the second UCD server is specifically: the first CSP server according to the The identification of the file to be deleted obtains the stored information of the file to be deleted corresponding to the identification of the file to be deleted, and the information of the file to be deleted includes: the identification of the file to be deleted, the second UCD server identification and the number of file blocks of the file to be deleted; determine that the number of file blocks of the file to be deleted is greater than 1, and obtain the second file from the information of the file to be deleted The identity of the UCD server.

In the above device embodiment, the storage unit may be a memory (memerry, or storage), or a random access memory (RAM, random access memory), or a read-only memory (ROM, -ead Only Memory). Examples are not limited here.

FIG. 10 is a schematic structural diagram of a terminal provided by an embodiment of the present invention, including: a transceiver 1001 , a memory 1002 , and a processor 1003 . specific

The transceiver 1001 is used to receive the first terminal after the first terminal logs in the CSP server through the user's registration information on the CSP server, and the CSP server provides services to the first terminal. The file download request sent, the file download request carries the identification of the original file; the memory 1002 is used to store various programs and applications, and execute the functions of each program and application under the call of the processor; the The processor 1003 is used to call various programs and applications stored in the memory, and determine that the original file corresponding to the identifier of the original file is divided into blocks, and obtain the first unified cloud disk UCD server that uploads the file blocks of the original file Identification; send a file acquisition request to the first UCD server according to the identification of the first UCD server, the file acquisition request carries the identification of the original file; the file acquisition request is used to indicate the first UCD server Acquire the information of the stored original file according to the identifier of the original file, and according to the identifier of the second CSP server storing the file block in the information of the original file, from the second CSP server indicated by the identifier of the second CSP server acquire file blocks, and synthesize the acquired file blocks into an original file; the transceiver 1001 is further used for the file acquisition response returned by the first UCD server, and sends the file acquisition response to the first terminal, to instruct the first terminal to acquire the original file through the file acquisition response.

In addition, the processor 1003 may also be used to execute the steps performed by the CSP server or the functional modules contained in the CSP server described in FIGS.

Figure 11 is a unified cloud disk UCD server provided by an embodiment of the present invention, including a receiving unit 1101, a determination and acquisition unit 1102, a sending unit 1103, a storage unit 1104 and a deletion unit 1105, specifically,

The receiving unit 1101 is configured to receive the file acquisition request sent by the CSP server of the first cloud service provider, the file acquisition request carrying the identification of the original file; and send the identification of the original file to the determination acquisition unit 1102;

The determining and acquiring unit 1102 is configured to receive the identifier of the original file sent by the receiving unit, and acquire the stored information of the original file corresponding to the identifier of the original file according to the identifier of the original file, and the original file The information includes the identification of the second CSP server storing the file block, the file block identification stored by the second CSP server and the order of the file block in the original file; and according to the identification of the second CSP server, from the first The second CSP server indicated by the identifier of the second CSP server obtains the file block corresponding to the file block identifier stored by the second CSP server; and sends the file block and the order of the file block in the original file to the Sending unit 1103;

The sending unit 1103 is configured to receive the file blocks sent by the determining and acquiring unit and the order of the file blocks in the original file, and send each of the file blocks from the second CSP server according to the order of the file blocks in the original file The obtained file blocks are merged into the original file, and the original file is provided to the first terminal.

Further, the sending unit 1103 providing the original file to the first terminal specifically includes:

Returning a file acquisition response to the first CSP server, the file acquisition response carrying the original file; the file acquisition response is used to instruct the first CSP server to receive the file acquisition response and send it to the first terminal; Or, return a file acquisition response to the first CSP server, where the file acquisition response carries the storage address of the original file in the UCD server; the file acquisition response is used to instruct the first CSP server to transfer the A file acquisition response is sent to the first terminal, and instructs the first terminal to acquire the original file according to the storage address.

Further, the receiving unit 1101 is further configured to receive a file upload request sent by the second terminal after the second terminal logs in to the UCD server through the user's registration information on the UCD server, and the file upload request carries The size of the original file to be uploaded by the user;

The determining and acquiring unit 1102 is further configured to acquire the information of the third CSP server registered by the user, and determine the size of the file block for uploading the original file according to the information of the third CSP server and the size information of the original file. Second CSP server;

The receiving unit 1101 is further configured to receive the original file sent by the second terminal, and send the original file to the sending unit 1103;

The sending unit 1102 is further configured to receive the original file sent by the receiving unit 1101 , and upload the file blocks of the original file to the second CSP server determined by the determining and acquiring unit 1102 .

Further, the information of the third CSP server includes the user's available storage space on the third CSP server and the size of the largest file supported by the third CSP server;

The determining and acquiring unit 1102 determines the second CSP server for uploading the file block of the original file according to the information of the third CSP server and the size information of the original file, specifically: determining that the available storage space is larger than that of the original file size, and the third CSP server whose maximum file size supported by the third CSP server is larger than the size of the original file is used as the second CSP server for uploading file blocks; the sending unit 1103 sends the original file Uploading the file block to the second CSP server determined by the determining and obtaining unit is specifically: uploading the original file as a file block to the second CSP server; or, the determining and obtaining unit 1102 according to the third CSP server The information and the size information of the original file determine the second CSP server for uploading the file blocks of the original file is specifically: determine at least two third CSP servers whose available storage space is greater than the size of the largest file supported by the third CSP server The CSP server is used as a second CSP server for uploading file blocks, and divides the original file into at least two file blocks according to the determined size of the largest file supported by the at least two second CSP servers, and the file blocks The size is smaller than the size of the largest file supported by the second CSP server; the sending unit 1103 uploads the file block of the original file to the second CSP server determined by the determining and obtaining unit, specifically: uploading the at least The two file blocks are respectively uploaded to the at least two second CSP servers.

Further, the server further includes a storage unit 1104;

The storage unit 1104 is used for storing the information of the original file, and the information of the original file includes: the identification of the original file, the number of file blocks into which the original file is divided, and the file block identification of each file block, and storing the The identification of the second CSP server of each file block, and the sequence of each file block in the original file.

Further, the sending unit 1103 is further configured to send the identifier of the UCD server, the identifier of the file block, and the ID of the file block in the original file according to the identifier of the second CSP server storing the file block stored in the storage unit 1104. The sequence is sent to the second CSP server.

Further, the server further includes a deletion unit 1105, and the receiving unit 1101 is further configured to receive a file deletion request sent by the first CSP server, wherein the file deletion request carries the identifier of the file to be deleted; the determination acquisition unit 1102 is further used for obtaining the information of the file to be deleted corresponding to the identifier of the file to be deleted stored in the storage unit according to the identifier of the file to be deleted, the information of the file to be deleted includes storing the The identifier of the fourth CSP server of the file block of the file to be deleted, the identifier of the file block stored by each fourth CSP server, and send the information of the file to be deleted to the sending unit 1103; the sending unit 1103 further It is used to receive the information of the file to be deleted sent by the determining and obtaining unit, and send a file block deletion request to the fourth CSP server according to the identifier of the fourth CSP server, and the file block deletion request carries the the identifier of the file log stored by the fourth CSP server, and the file deletion request is used to instruct the fourth CSP server to delete the file block and the information of the file block corresponding to the file block identifier stored by the fourth CSP server; the The receiving unit 1101 is further configured to receive the file block deletion response sent by the fourth CSP server; the deleting unit 1105 is configured to delete the information of the file to be deleted stored in the storage unit; the sending unit 1103 further uses and returning a file deletion response to the first CSP server, where the file deletion response is used to instruct the first CSP server to send the file deletion response to the first terminal.

FIG. 12 is a schematic structural diagram of a UCD server provided by an embodiment of the present invention, including: a transceiver 1201 , a memory 1202 , and a processor 1203 .

Specifically, the transceiver 1201 is used to receive a file acquisition request sent by the CSP server of the first cloud service provider, and the file acquisition request carries the identifier of the original file; the memory 1202 is used for various programs and applications, and Execute the functions of various programs and applications under the invocation of the processor; the processor 1203 is used to call various programs and applications stored in the memory, and obtain the stored identification of the original file according to the identification of the original file The information of the corresponding original file, the information of the original file includes the identification of the second CSP server storing the file block, the file block identification stored by the second CSP server and the order of the file block in the original file, according to the first The identification of the second CSP server, obtaining the file block corresponding to the file block identification stored in the second CSP server from the second CSP server indicated by the identification of the second CSP server; according to the acquisition from the second CSP server the order of the file blocks in the original file, and merge each file block obtained from the second CSP server into the original file;

The transceiver 1201 is further configured to provide the original file to the first terminal.

In addition, the processor 1203 may also be configured to execute the steps performed by the UCD server described in FIG. 1 to FIG. 7 in the method embodiment, which will not be described in detail in this embodiment of the present invention.

In the above embodiments, the terminal may be various mobile terminals, such as a smart phone, a tablet computer, a mobile reading device, and the like. In the above-mentioned embodiments, especially in the embodiments corresponding to Fig. 9 and Fig. 11, each device included in the CSP server and UCD server is only divided according to functional logic, but it is not limited to the above-mentioned division, as long as the corresponding functions can be realized In addition, the specific names of the devices are only for the convenience of distinguishing each other, and are not used to limit the protection scope of the present invention. The functions of each functional module or device of the CSP server and UCD server in Figures 1-7 can be completed by the processor of the terminal,

The above is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed in the present invention can easily think of changes or Replacement should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the protection scope of the claims.

Claims (16)

1. a kind of document down loading method, which is characterized in that in first terminal by user in the first cloud service provider server Registration information log in the first cloud service provider server after, and the first cloud service provider server is to institute During first terminal offer business is provided, this method comprises:

The first cloud service provider server receives the file download request that the first terminal is sent, the file download The mark of original document is carried in request；

The first cloud service provider server determines that the original document corresponding with the mark of the original document is divided Block obtains the mark for uploading the first unified cloud disk server of blocks of files of the original document；

The first cloud service provider server is united according to the mark of the described first unified cloud disk server to described first One cloud disk server sends file acquisition request, and the file acquisition request carries the mark of the original document；The text Part acquisition request is used to indicate the institute that the described first unified cloud disk server obtains storage according to the mark of the original document The information of original document is stated, and according to the second cloud service provider server of storage file block in the information of the original document Mark, from the second cloud service provider server mark instruction the second cloud service provider server obtain file Block, and the blocks of files of the acquisition is synthesized into the original document；

The first cloud service provider server receives the file acquisition response that the described first unified cloud disk server returns, And file acquisition response is sent to the first terminal, to indicate that the first terminal is responded by the file acquisition Obtain the original document.

2. the method as described in claim 1, which is characterized in that the first terminal obtains institute by file acquisition response State original document specifically:

The file acquisition response carries the original document, and the first terminal obtains described original from file acquisition response File；Or

The file acquisition response carries the original document in the storage address of the described first unified cloud disk server；It is described First terminal obtains the original document from the described first unified cloud disk server according to the storage address.

3. method according to claim 1 or 2, which is characterized in that the file download for receiving the first terminal and sending Before request, this method further comprises:

Receive the inquiry request that the first terminal is sent；

The user is obtained described first in the registration information of the first cloud service provider server according to the user The file block message of cloud service provider server storage, the blocks of files information include to upload the described first unified cloud disk clothes The mark of the original document belonging to the mark and blocks of files of business device；

Blocks of files is sent to the described first unified cloud disk server according to the mark of the described first unified cloud disk server to look into Ask request, the mark comprising the original document belonging to the blocks of files in the blocks of files inquiry request；

Receive the information for the original document that the described first unified cloud disk server returns, the original text of the return The information of part includes: the title of the original document, the mark of the original document and the first unified cloud disk server Mark and the divided file number of blocks of the original document；

The mark of the title of the original document and the original document is sent to the first terminal, and stores the return The original document information；Or the information of the original document is sent to the first terminal.

4. method as claimed in claim 3, it is characterised in that: the file block message further includes blocks of files marker；

The mark according to the described first unified cloud disk server sends file to the described first unified cloud disk server Before block inquiry request, the first cloud service provider server further determines that the blocks of files marker is original document Segmentation mark.

5. method as claimed in claim 3, it is characterised in that: further included in the file download request: described original The mark of the divided file number of blocks of file and the first unified cloud disk server；First cloud service provides The determining original document corresponding with the mark of the original document of quotient's server obtains the described first unified cloud by piecemeal The mark of disk server specifically: the first cloud service provider server determines the divided file of the original document Number of blocks is greater than 1, and the mark of the described first unified cloud disk server is obtained from the file download request；Or

The first cloud service provider server determine original document corresponding with the mark of the original document by piecemeal, and Obtain the mark of the described first unified cloud disk server specifically: the first cloud service provider server is according to the original The mark of beginning file obtains the information of the exhaled original document corresponding with the mark of the original document of storage, the original text The information of part includes: the mark of the original document and mark and the original text of the described first unified cloud disk server The divided file number of blocks of part；The first cloud service provider server determines the divided blocks of files of the original document Quantity is greater than 1, and the mark of the described first unified cloud disk server is obtained from the information of the original document.

6. the method as described in claim 1, which is characterized in that this method further comprises:

Receive the upload block request that the described first unified cloud disk server is sent；The upload block request includes the original text The blocks of files of part, the file block message of the first unified cloud disk server generation and the user are in first cloud The registration information of service provider server；

The blocks of files is stored, and by the file block message and the user in the first cloud service provider service The registration information mapping storage of device.

7. the method as described in claim 1, which is characterized in that this method further comprises:

The file deletion requests that first terminal is sent are received, the mark for the file that need to be deleted is carried in the file deletion requests；

The first cloud service provider server determines the file that need to be deleted corresponding with the mark of the file that need to be deleted By piecemeal, and obtain the mark of the second unified cloud disk server of the blocks of files for uploading the file that need to be deleted；

The file is sent to the second unified cloud disk server according to the mark of the described second unified cloud disk server to delete Request, the file deletion requests are used to indicate the described second unified cloud disk server to the storage file that need to be deleted 4th cloud service provider server of blocks of files sends blocks of files removal request, and is receiving the 4th cloud service provider After the blocks of files that server returns deletes response, the file that the need that the described second unified cloud disk server stores are deleted is deleted The file information simultaneously returns to file deletion response to the first cloud service provider server；

The first cloud service provider server receives the file that the described second unified cloud disk server returns and deletes Response sends the file to the first terminal and deletes response.

8. the method for claim 7, which is characterized in that further include: need to delete in the file deletion requests The mark of the divided file number of blocks of file and the second unified cloud disk server；The first cloud service provider clothes The determining file corresponding with the mark of the file that need to be deleted of device be engaged in by piecemeal, and obtains the second unified cloud disk server Mark specifically: the first cloud service provider server determines the file quilt for needing to delete described in the file deletion requests The file number of blocks of segmentation is greater than 1, and the mark of the described second unified cloud disk server is obtained from the file deletion requests Know；Or the first cloud service provider server determine file corresponding with the mark of the file that need to be deleted by piecemeal, And obtain the mark of the described second unified cloud disk server specifically: the first cloud service provider server is according to The mark for the file that need to be deleted obtains the information of the file that need to be deleted corresponding with the mark of the file that need to be deleted of storage, The information of the file that need to be deleted includes: the mark of the file that need to be deleted, the second unified cloud disk server Mark and the divided file number of blocks of file that need to be deleted；The first cloud service provider server determines storage The divided file number of blocks of file that need to be deleted be greater than 1, and obtain institute from the information of the file that need to be deleted State the mark of the second unified cloud disk server.

9. a kind of first cloud service provider server characterized by comprising

Receiving unit, for being logged in by user in the registration information of the first cloud service provider server in first terminal After the first cloud service provider server, and the first cloud service provider server is provided to the first terminal During business, the file download request that first terminal is sent is received, carries original document in the file download request Mark, and the mark of the original document is sent to determining acquiring unit；

The determining acquiring unit, for receiving the mark for the original document that the receiving unit is sent, it is determining with it is described The corresponding original document of the mark of original document is by piecemeal, and obtains the first of the blocks of files for uploading the original document The mark of unified cloud disk server, and the mark of the described first unified cloud disk server is sent to transmission unit；

The transmission unit, for receiving the mark for the described first unified cloud disk server that the determining receiving unit is sent Know, and file is sent to the described first unified cloud disk server according to the mark of the described first unified cloud disk server and is obtained Request is taken, the file acquisition request carries the mark of the original document；File acquisition request is used to indicate described the One unified cloud disk server obtains the information of the original document of storage according to the mark of the original document, and according to institute The mark for stating the corresponding second cloud service provider server of blocks of files in the information of original document is mentioned from second cloud service Blocks of files is obtained for the second cloud service provider server of the mark instruction of quotient's server, and by the file of the acquisition Block synthesizes the original document；

The receiving unit is further used for receiving the file acquisition response that the described first unified cloud disk server returns, and will The file acquisition response is sent to the transmission unit, and the transmission unit is further used for receiving the receiving unit transmission File acquisition response, and by the file acquisition response be sent to the first terminal, to indicate that the first terminal passes through The file acquisition response obtains the original document.

10. server as claimed in claim 9, which is characterized in that the server further includes storage unit；

The receiving unit is further used for before receiving the file download request that the first terminal is sent, and receives described the The inquiry request that one terminal is sent, and the inquiry request is sent to the determining acquiring unit；

The determining acquiring unit is further used for receiving the inquiry request that the receiving unit is sent, and is existed according to the user The registration information of the first cloud service provider server obtains the blocks of files letter that the user stores in the storage unit Breath, the blocks of files information include described original belonging to the mark and blocks of files of the described first unified cloud disk server The mark of file, and the mark of the mark of the original document and the described first unified cloud disk server is sent to the hair Send unit；

The transmission unit is further used for receiving the mark of the original document that the determining acquiring unit is sent and described The mark of first unified cloud disk server, according to the mark of the described first unified cloud disk server to the described first unified cloud Disk server sends blocks of files inquiry request, includes described original belonging to the blocks of files in the blocks of files inquiry request The mark of file；

The receiving unit is further used for receiving the letter for the original document that the described first unified cloud disk server returns Breath, the information of the original document of the return includes: the title of the original document, the mark of the original document and institute State the mark and the divided file number of blocks of original document of the first unified cloud disk server, and by the original document Information is sent to the transmission unit and the storage unit；

The storage unit is used to receive the information for the original document that the receiving unit is sent, and the storage original document Information；

The transmission unit is further used for receiving the information for the original document that the receiving unit is sent, and by the original The title of the original document in the information of beginning file and the mark of the original document are sent to the first terminal, or will The information of the original document is sent to the first terminal.

11. server as claimed in claim 10, which is characterized in that the file block message further includes file block identification Position；

The transmission unit is according to the mark of the described first unified cloud disk server to the described first unified cloud disk server Before sending blocks of files inquiry request, the determining acquiring unit further determines that the blocks of files marker for original document point Cut mark.

12. the server as described in claim 9-11 is any, it is characterised in that:

It is further included in the file download request: the divided file number of blocks of the original document and described first The mark of unified cloud disk server；The determining acquiring unit determination is corresponding with the mark of the original document described original File obtains the mark of the described first unified cloud disk server by piecemeal specifically: the first cloud service provider clothes Business device determines that the divided file number of blocks of the original document is greater than 1, and obtains from the file download request described the The mark of one unified cloud disk server；Or

The determining original document corresponding with the mark of the original document of determining acquiring unit obtains institute by piecemeal State the mark of the first unified cloud disk server specifically: the first cloud service provider server is according to the original document Mark obtain storage the original document corresponding with the mark of the original document information, the letter of the original document Breath includes: the mark of the original document and the mark of the described first unified cloud disk server and the original document are divided The file number of blocks cut；The first cloud service provider server determines that the divided file number of blocks of the original document is big In 1, and obtain from the information of the original document mark of the described first unified cloud disk server.

13. server as claimed in claim 10, which is characterized in that

The receiving unit is further used for receiving the upload block request that the described first unified cloud disk server is sent；On described The file block message of blocks of files of the block request comprising the original document and the first unified cloud disk server generation is passed, And the user is in the registration information of the first cloud service provider server；

The storage unit is further used for receiving the upload block request that the receiving unit is sent, store the blocks of files and By the file block message and the user the first cloud service provider server registration information mapping storage.

14. server as claimed in claim 9, which is characterized in that

The receiving unit is further used for receiving the file deletion requests that first terminal is sent, and takes in the file deletion requests The mark of the file that need to be deleted is sent to the determining acquiring unit by the mark for the file that band need to be deleted；

The determining acquiring unit is further used for receiving the mark for the file that the need that the receiving unit is sent are deleted, determine with The corresponding file that need to be deleted of mark of the file that need to be deleted obtains the text for uploading the file that need to be deleted by piecemeal The mark of the unified cloud disk server of the second of part block, and the mark of the described second unified cloud disk server is sent to transmission Unit；

The transmission unit is further used for receiving the described second unified cloud disk server that the determining acquiring unit is sent Mark, the text is sent to the described second unified cloud disk server according to the mark of the described second unified cloud disk server Part removal request, the file deletion requests, which are used to indicate the described second unified cloud disk server, described need to delete to storing 4th cloud service provider server of the blocks of files of file sends blocks of files removal request, and is receiving the 4th cloud service After the blocks of files that provider server returns deletes response, delete what the need that the described second unified cloud disk server stores were deleted The information of file simultaneously returns to file deletion response to the first cloud service provider server；

The receiving unit is further used for receiving the file deletion response that the described second unified cloud disk server returns, And the file is deleted into response and is sent to the transmission unit；

The transmission unit is further used for receiving the file that the receiving unit is sent and deletes response, and to described first Terminal sends file and deletes response.

15. server as claimed in claim 14, which is characterized in that further included in the file deletion requests: need to delete The mark of the divided file number of blocks of the file removed and the second unified cloud disk server；The determining acquisition is single The determining original document corresponding with the mark of the file that need to be deleted of member obtains the described second unified cloud magnetic by piecemeal The mark of disk server specifically: determine the divided file number of blocks of file for needing to delete described in the file deletion requests Greater than 1, and obtain from the file deletion requests mark of the described second unified cloud disk server；Or

The determining acquiring unit determines that file corresponding with the mark of the file that need to be deleted by piecemeal, and obtains described the The mark of two unified cloud disk servers specifically: the first cloud service provider server is according to the file that need to be deleted Mark obtain storage corresponding with the mark of the file that need to the be deleted file that need to be deleted information, it is described to delete The information of file includes: the mark of the file that need to be deleted, the mark of the second unified cloud disk server and described The divided file number of blocks of the file that need to be deleted；Determine that the divided file number of blocks of file that need to be deleted of storage is big In 1, and obtain from the information of the file that need to be deleted the mark of the described second unified cloud disk server.

16. a kind of cloud service provider server characterized by comprising transceiver, memory and processor；

The transceiver is stepped on by user in the registration information of the cloud service provider server for receiving in first terminal After recording the cloud service provider server, and the cloud service provider server provides business to the first terminal In the process, the file download request that first terminal is sent is received, the mark of original document is carried in the file download request；

The memory executes each program and application for storing various programs and application under the calling of the processor Function；

The various programs and application that the processor is used to that memory to be called to store, and the determining mark with the original document The corresponding original document obtains the first unified cloud disk server of the blocks of files for uploading the original document by piecemeal Mark；File acquisition is sent to the described first unified cloud disk server according to the mark of the described first unified cloud disk server Request, the file acquisition request carry the mark of the original document；The file acquisition request is used to indicate described first Unified cloud disk server obtains the information of the original document of storage according to the mark of the original document, and according to described The mark of second cloud service provider server of storage file block in the information of original document is provided from second cloud service The second cloud service provider server of the mark instruction of quotient's server obtains blocks of files, and by the blocks of files of the acquisition Synthesize the original document；

The transceiver is further used for the file acquisition response that the described first unified cloud disk server returns, and by the text Part obtains response and is sent to the first terminal, to indicate that the first terminal obtains the original by file acquisition response Beginning file.