CN100463397C - File transmission method and system - Google Patents
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- CN100463397C CN100463397C CNB2006100659283A CN200610065928A CN100463397C CN 100463397 C CN100463397 C CN 100463397C CN B2006100659283 A CNB2006100659283 A CN B2006100659283A CN 200610065928 A CN200610065928 A CN 200610065928A CN 100463397 C CN100463397 C CN 100463397C
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Abstract
A method for transmitting file includes sending protocol command requesting to send file to processing server by file sending client end, confirming current login state of file receiving client end by process server, using existed technical transmission means to send file if current login state is on-line and selecting E-mail mode to transmit file if current login state is off-line, informing file receiving client end to download said file from itself E-mail box by login server when file receiving client is logged in. The system used for realizing said method is also disclosed.
Description
Technical field
The present invention relates to instant messaging, relate in particular to a kind of document transmission method and system in the instant messaging.
Background technology
Network instant communication (IM) instrument develops into today, is accepted by most netizen, has become the requisite Software tool of user, is used widely not only in amusement and recreation at ordinary times, and in user's work.Therefore the user is to the ease for use of IM software, stability, and aspects such as fail safe have proposed higher requirement.In the prior art, all IM software all provides the function of file transfer, and by file transmitting function, communicating pair can be very fast views some up-to-date fileinfos, greatly assisted work between the user and exchanges and communication in life, also convenient for users to use.The MSN of Microsoft for example, the QQ of POPO of Netease and Tengxun etc., all realized the function of file transfer between the user, if user A wishes that transfer files gives the user B, at first send protocol command to handling in the server by user A client, request sends file for user B, opens corresponding transmission control protocol (TCP) port simultaneously and waits for that user B connects; Then processing server is resolved the Subscriber Number sign that extracts user B according to bag, and the inquiry logon server obtains the login dynamic IP addressing of user B client and port (Port) number; Send a notification message at last to user B client, whether inquiry user B agrees or rejects file; If user B agrees to receive the file that user A sends, then carry out TCP and be connected with user A client, carry out the transmission of document data flow; Otherwise return refuse information by processing server and give user A client, user A client is closed TCP and is waited for the connectivity port.
By the description of above document transmission process, as can be seen, must guarantee in the prior art that user A client and user B client all successfully logined IM software, just can carry out effective file transfer.And when user A wished to user B transmission file, user B may be not online, causes file effectively not transmit; And sometimes user B has reached the standard grade, and user A is not online again, therefore, this in the prior art must all online mode that just can carry out file transfer of both sides, the user is used very inconvenience.For users, need a kind of means of file transfer more easily.
Summary of the invention
The invention provides a kind of document transmission method and system, when carrying out file transfer in the prior art, be confined to that both sides are online just to carry out file transfer, cause the awkward problem of user in order to solve.
According to document transmission method provided by the invention, the present invention provides a kind of corresponding document transmission system in addition.
The inventive method comprises:
Behind A, the file transmit leg client access of instant communicating software, send the file transfer protocol (FTP) order of the number mark that carries file recipient client to the processing server of network side;
B, described processing server are determined the current logging status of file recipient client; If its current logging status is a presence, then according to file transfer flow processing of the prior art; If its current logging status is an off-line state, then continue the following step;
C, described processing server circular document transmit leg client send file to recipient's mailbox;
C ', file transmit leg client send the file transfer notification message to the deferred information server;
When D, recipient's client were reached the standard grade next time, if receive the file transfer notification message that the deferred information server sends, the login mailbox obtained transfer files.
According to said method of the present invention, processing server described in the step B determines that file receives the current logging status of subscription client, comprising:
Processing server parses the number mark that the file that carries in the described protocol command receives the user, and the state mapping MAP relation table in the query State server obtains the current logging status that file receives subscription client.
According to said method of the present invention, described step C comprises:
C1, described processing server with file recipient client not presence be notified to file transmit leg client;
C2, file transmit leg client are obtained file recipient email address, and file waiting for transmission is sent in the file recipient mailbox.
Described step step C1 comprises:
Processing server sends a notification message to file transmit leg client, carries to show the not online content of announcement of file recipient client; Chat window by file transmit leg client is shown to the user with described content of announcement.
According to said method of the present invention, among the described step C1, whether described processing server also points out file transmit leg client to adopt lettergram mode to carry out file transfer; If file transmit leg client selects to adopt lettergram mode to carry out file transfer, carry out described step C2; Otherwise, the ends file transfer flow process.
Obtain file recipient email address described in the step C2, file waiting for transmission sent in the file recipient mailbox, specifically comprise:
File transmit leg client is obtained the email address with the binding of file recipient Subscriber Number sign from this locality;
According to the mail format that sends mail, the email address of file transmit leg self is set to the sender, and file recipient email address is set to the addressee, and file to be transmitted as Email attachment, is sent this mail in corresponding mail server.
According to said method of the present invention, described step D comprises:
After the login of file recipient client, logon server is inquired about described deferred information server; If store the file recipient's of giving to be sent file transfer notification message in the deferred information server, then logon server obtains and transmits this document communication notification messages and gives file recipient client; From self mailbox, download transfer files after the notified message of file recipient client.
Among the described step D, after file recipient client receives the file transfer notification message, demonstrate content of announcement, and whether the prompting user receives by local chat window; If user's selective reception then automatically links to user's email address and downloads file content in the annex; If the user selects not receive, then file recipient client is not carried out the operation that is linked to subscriber mailbox.
According to said method of the present invention, the Subscriber Number of include file transmit leg sign in the described content of announcement; Whether the file recipient receives the file of its transmission according to the Subscriber Number sign decision of file transmit leg.
The present invention provides a kind of document transmission system in addition, comprises subscription client, processing server, logon server and state server, also includes mail server and deferred information server; Described subscription client is connected with described processing server, logon server, mail server and deferred information server, and described state server is connected with processing server, and described deferred information server also is connected with logon server;
File transmit leg client sends the file transfer protocol (FTP) order of the number mark carry file recipient client to processing server, and described processing server is inquired about described state server, determines the current logging status of file recipient client;
If the current logging status of file recipient client is a presence, then according to file transfer flow processing of the prior art; If its current logging status is an off-line state, described processing server circular document transmit leg client sends file to recipient's mailbox;
File transmit leg client sends the file transfer notification message to the deferred information server;
When recipient's client was reached the standard grade next time, if receive the file transfer notification message that the deferred information server sends, the login mailbox obtained transfer files.
Document transmission system provided by the invention comprises that also the deferred information server is connected with logon server with subscription client;
After file transmit leg client sends to file recipient mailbox with file waiting for transmission, send the file transfer notification message to the deferred information server;
When recipient's client was reached the standard grade next time, logon server was inquired about described deferred information server; If store the file recipient's of giving to be sent file transfer notification message in the deferred information server, then logon server obtains and transmits this document communication notification messages and gives file recipient client.
Include the status poll processing module in the described processing server; Receive the file transfer protocol (FTP) order of file transmit leg client transmission when processing server after,, obtain the current logging status of file recipient client by the mapping of the state in described status poll processing module query State server MAP relation table.
Include mail in the described subscription client and generate sending module; When file transmit leg client receives that described processing server circular document recipient client is not during presence, start this mail generation sending module and obtain file recipient email address, adopt lettergram mode to send in the described mail server file waiting for transmission.
Also include notification message in the described subscription client and resolve Executive Module; After file recipient client is reached the standard grade, if receive the file transfer notification message that logon server sends, resolve the particular content that Executive Module parses the file transfer notification message by this notification message, and when user's selective reception file, login described mail server, from self mailbox, download transfer files.
Beneficial effect of the present invention is as follows:
Adopt the inventive method, user both sides are in the process of using IM software, no longer be limited to have only that both sides are online just can transfer files, characteristics by effective fusion mail transmission validity and IM software instantaneity, solved under the not online situation of the other side, the user can send file to the other side by mail, after the recipient reaches the standard grade, utilizes IM software to notify the user to carry out file immediately and receives processing.Improve user's operating efficiency, made things convenient for the user to use IM software at work.
In system of the present invention, utilize the mail server function of prior art,, can realize sending transfer files by lettergram mode by increasing the deferred information server newly and in subscription client, setting up the corresponding function module, and after the reception user reaches the standard grade, in time notify, realize the file reception.Realize that simple cost is low.
Description of drawings
Fig. 1 is the inventive method file transmission flow figure;
Fig. 2 receives flow chart for the inventive method file;
Fig. 2 is a system configuration schematic diagram of the present invention.
Embodiment
The present invention proposes a kind of document transmission method, can realize carrying out file transfer based on off-line mode.For example user A wishes the transfer files to user B, determines the current state of file recipient user B client by processing server, if the current state of user B client is a presence, then carries out file transfer according to the file transfer mode of prior art; If the current state of user B is an off-line state, then point out user A whether to select to carry out file transfer with lettergram mode, if user A selects to send file with lettergram mode, then file is sent among the email address of user B correspondence, and send a notification message to the deferred information server.
After user B reaches the standard grade, logon server inquiry deferred information server, if store the notification message of the user B of giving to be sent in the deferred information server, then this notification message is sent to user B client, inform that user A has sent certain file in its mailbox, user B just can click the reception of carrying out file.Also can carry out file transfer even so just can guarantee under the not online simultaneously situation of both sides.
Below in conjunction with accompanying drawing the inventive method is described in detail.
Referring to Fig. 1, for file sends the flow chart (suppose that user A is the file transmit leg, user B is the file recipient) that subscription client sends file, concrete steps comprise:
Step S11, user A place transmit leg client send the file transfer protocol (FTP) order to handling server.Specifically comprise:
User A wishes to send certain file to user B in the operation interface of chat window, user A client combination local ip address, and the Port port, user B number mark and request send the protocol command of file to handling in the server.
The current state of step S12, processing server inquiry file recipient user B client.Specifically comprise:
Processing server is asynchronous receive the file transfer protocol (FTP) command packet that client sends after, be decrypted and dissection process; Get access to user B number mark, and utilize the state MAP relation table of user B number mark query State server, obtain the current logging status of user B client.
Step S13, processing server judge whether the current state of user B client is presence, if, execution in step S14 then; If the current state of user B client is an off-line state, then execution in step S15.
Step S14, by prior art file transfer flow process, the file transfer that user A client is sent is to user B client.Specifically comprise:
1) processing server inquiry logon server obtains the dynamic IP addressing of user B client login and port Port number, and the combination user A number mark packet of issuing a notice in the packet is given user B client;
2) after user B client receives the notification message of server, utilize protocol process module, parse protocol type for request receives the file protocol order, then utilize the chat window administration module, whether demonstration receives the operation interface of file is checked for user B;
3) if user B rejects file, then send corresponding rejection protocol command to handling server, processing server issues the protocol command that user B rejects according to login IP address and the port of user A;
4) if user B agree to receive file, then utilize local memory module inquiring user A client correspondence etc. TCP socket port to be connected, carry out active with user A client to be connected;
5) transmission channel of foundation and user A client is carried out follow-up document transmission processing work, and up to the document data flow end of transmission, user A client and user B client are closed TCP socket port.
Step S15, processing server are notified the user A with the off-line state of user B client, and provide the employing lettergram mode to carry out file transfer for user's selection.Specifically comprise:
Processing server is issued a notice message to user A client, utilizes the chat window display module, and user A is given in display notification, shows that user B client is not online; And whether the prompting user needs to adopt lettergram mode to carry out file transfer or cancellation sends, and is selected by user's between.
Step S16, judge whether the user selects to adopt the lettergram mode transfer files, if continue the following step; Otherwise, the ends file transfer flow process.
Step S17, employing lettergram mode send transfer files.Specifically comprise:
1) user A client utilizes the personal information administration module to obtain email address information local storage and the user B binding of user B number mark, and for example the number of user B is " 34567 ", and its corresponding email address is " 34567@qq.com ";
2) resolve SMTP (the SimpleMail Transfer Protocol) address that obtains should the mailbox service merchant according to the email address of user B, promptly simple mail sends protocol address, is used for the transmission agreement of mail;
3) according to the mail format that sends mail, the email address of user A is set to the sender, user B email address is set to the addressee, attachment content is a file waiting for transmission, fills in necessary Mail Contents information such as corresponding sender's name address, addressee's name address, theme, text, annex;
4) utilize WindowS bottom module management interface to be loaded into the MAPI32.DLL dynamic link library, obtain the function address that sends mail by the module's address that returns, the storage allocation information that saves attachment, the storage allocation file path that saves attachment is filled in addressee's structural information;
5) fill in complete mail structural information, utilize the MAPI interface function to send mail, discharge relevant internal memory simultaneously.
After step S18, mail sent successfully, user A client sent a notification message to the deferred information server, showed that in this notification message user A has sent transfer files to user B mailbox.
Fig. 2 after file recipient user B client is reached the standard grade, carries out the flow chart that file receives, and concrete steps comprise:
Step S21, user B client are initiated logging request to logon server, login IM software.
Step S22, logon server are according to user B number mark inquiry deferred information server.
Step S23, logon server are judged the notification message that whether stores the user B of giving to be sent in the deferred information server; If do not inquire corresponding notification message, execution in step S24 then; If inquire the notification message that stores the user B of giving to be sent in the deferred information server, then execution in step S25.
Step S24, by the subsequent operation of prior art flow performing user B client.
Step S25, logon server obtain the file transfer notification message that need send to user B, and send this notification message to user B client.This notification message shows that user A has sent file in the email address of user B.
Step S26, user B client login mailbox receive transfer files.Specifically comprise:
After user B client receives notification message, demonstrate notification message content, and whether the prompting user receives transfer files by chat window;
User B is according to the transmit leg user ID, and whether decision receives file; For example, if transmit leg is the good friend of oneself, then click " reception "; If transmit leg is the stranger who oneself does not know,, can click " not receiving " for avoiding receiving junk information or fallacious message;
User B then utilizes the email address of user B to obtain the POP3 address after clicking " reception ", and mailbox account number and the password of combination user B utilize the interface function of the reception mail of MAPI to carry out the download of file; If user B clicks " not receiving ", then do not carry out the operation that is linked to email address, ends file receives flow process.
According to said method of the present invention, user both sides are in the process of using IM software, no longer be limited to have only that both sides are online just can transfer files, by merging the characteristics of mail transmission validity and IM software instantaneity, solved under the not online situation of the other side, the user can send file to the other side by lettergram mode; After the recipient reaches the standard grade, utilize IM software to notify the user to carry out file immediately and receive processing.Improve user's operating efficiency, made things convenient for the user to use IM software at work.
According to said method provided by the invention, the present invention provides a kind of corresponding document transmission system in addition, as shown in Figure 3, comprising: subscription client, processing server, logon server and state server also include mail server and deferred information server.
Wherein, subscription client is connected with processing server, logon server, mail server and deferred information server, and state server is connected with processing server, and the deferred information server also is connected with logon server.
The operation principle of said system of the present invention is:
File sends subscription client and sends the protocol command that request sends file to processing server, and processing server is inquired about described state server, determines that file receives the current logging status of subscription client; If it is stealthy or presence that file receives the current logging status of subscription client, then according to file transfer flow processing of the prior art; If its current logging status is an off-line state, processing server with file receive subscription client not presence be notified to file and send subscription client, and whether the prompting user adopts lettergram mode to carry out file transfer;
If the user selects to adopt lettergram mode to carry out file transfer, file sends subscription client and obtains the email address that file receives the user, adopts lettergram mode to send in the described mail server file waiting for transmission;
After file receives the subscription client login, logon server inquiry deferred information server; If store the notification message to file reception user to be sent in the deferred information server, then obtain and transmit this notification message and receive subscription client to file; File is logined described mail server after receiving the notified message of subscription client, downloads transfer files from self mailbox.
Include the status poll processing module in the processing server of system of the present invention; After processing server receives that file sends the protocol command of subscription client request transmission file,, obtain the current logging status that file receives subscription client by the mapping of the state in described status poll processing module query State server MAP relation table.
Include mail in the subscription client of system of the present invention and generate sending module; When sending subscription client, file receives that described processing server circular document receives subscription client not during presence, carry out file transfer if select to adopt lettergram mode, generate sending module by this mail and obtain the email address that file receives the user, adopt lettergram mode to send in the described mail server file waiting for transmission.
Also include notification message in the subscription client of system of the present invention and resolve Executive Module; After file receives the subscription client login, if receive the described notification message that logon server sends, resolve the particular content that Executive Module parses notification message by this notification message, and when user's selective reception file, login described mail server, from self mailbox, download transfer files.
Document transmission system provided by the invention, utilize the mail server function of prior art, by increasing the deferred information server newly and in subscription client, setting up the corresponding function module, can realize sending transfer files by lettergram mode, and after the reception user reaches the standard grade, in time notify, realize the file reception.Realize that simple cost is low.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (14)
1. a document transmission method is applied to instant messaging, it is characterized in that, comprising:
Behind A, the file transmit leg client access of instant communicating software, send the file transfer protocol (FTP) order of the number mark that carries file recipient client to the processing server of network side;
B, described processing server are determined the current logging status of file recipient client; If its current logging status is a presence, then according to file transfer flow processing of the prior art; If its current logging status is an off-line state, then continue the following step;
C, described processing server circular document transmit leg client send file to recipient's mailbox;
C ', file transmit leg client send the file transfer notification message to the deferred information server;
When D, recipient's client were reached the standard grade next time, if receive the file transfer notification message that the deferred information server sends, the login mailbox obtained transfer files.
2. the method for claim 1 is characterized in that, processing server described in the step B is determined the current logging status of file recipient client, comprising:
Processing server parses the number mark that the file that carries in the described protocol command receives the user, and the state in the query State server shines upon the MAP relation table, obtains the current logging status of file recipient client.
3. the method for claim 1 is characterized in that, described step C comprises:
C1, described processing server with file recipient client not presence be notified to file transmit leg client;
C2, file transmit leg client are obtained file recipient email address, and file waiting for transmission is sent in the file recipient mailbox.
4. method as claimed in claim 3 is characterized in that, described step C1 comprises:
Processing server sends a notification message to file transmit leg client, carries to show the not online content of announcement of file recipient client; Chat window by file transmit leg client is shown to the user with described content of announcement.
5. method as claimed in claim 4 is characterized in that, among the described step C1, whether described processing server also points out file transmit leg client to adopt lettergram mode to carry out file transfer; If file transmit leg client selects to adopt lettergram mode to carry out file transfer, carry out described step C2; Otherwise, the ends file transfer flow process.
6. method as claimed in claim 3 is characterized in that, obtains file recipient email address described in the step C2, and file waiting for transmission is sent in the file recipient mailbox, specifically comprises:
File transmit leg client is obtained the email address with the binding of file recipient Subscriber Number sign from this locality;
According to the mail format that sends mail, the email address of file transmit leg self is set to the sender, and file recipient email address is set to the addressee, and file to be transmitted as Email attachment, is sent this mail in corresponding mail server.
7. as the described method of the arbitrary claim of claim 3-6, it is characterized in that described step D comprises:
After the login of file recipient client, logon server is inquired about described deferred information server; If store the file recipient's of giving to be sent file transfer notification message in the deferred information server, then logon server obtains and transmits this document communication notification messages and gives file recipient client; File recipient client is received behind the file transfer notification message from self mailbox and is downloaded transfer files.
8. method as claimed in claim 7 is characterized in that, among the described step D, after file recipient client receives the file transfer notification message, demonstrates content of announcement by local chat window, and whether the prompting user receives; If user's selective reception then automatically links to user's email address and downloads file content in the annex; If the user selects not receive, then file recipient client is not carried out the operation that is linked to subscriber mailbox.
9. method as claimed in claim 8 is characterized in that, the Subscriber Number of include file transmit leg sign in the described content of announcement; Whether the file recipient receives the file of its transmission according to the Subscriber Number sign decision of file transmit leg.
10. a document transmission system comprises subscription client, processing server, logon server and state server, it is characterized in that, also includes mail server and deferred information server; Described subscription client is connected with described processing server, logon server, mail server and deferred information server, and described state server is connected with processing server, and described deferred information server also is connected with logon server;
File transmit leg client sends the file transfer protocol (FTP) order of the number mark carry file recipient client to processing server, and described processing server is inquired about described state server, determines the current logging status of file recipient client;
If the current logging status of file recipient client is a presence, then according to file transfer flow processing of the prior art; If its current logging status is an off-line state, described processing server circular document transmit leg client sends file to recipient's mailbox;
File transmit leg client sends the file transfer notification message to the deferred information server;
When recipient's client was reached the standard grade next time, if receive the file transfer notification message that the deferred information server sends, the login mailbox obtained transfer files.
11. system as claimed in claim 10 is characterized in that, comprises that also the deferred information server is connected with logon server with subscription client;
After file transmit leg client sends to file recipient mailbox with file waiting for transmission, send the file transfer notification message to the deferred information server;
When recipient's client was reached the standard grade next time, logon server was inquired about described deferred information server; If store the file recipient's of giving to be sent file transfer notification message in the deferred information server, then logon server obtains and transmits this document communication notification messages and gives file recipient client.
12. system as claimed in claim 11 is characterized in that, includes the status poll processing module in the described processing server; Receive the file transfer protocol (FTP) order of file transmit leg client transmission when processing server after,, obtain the current logging status of file recipient client by the mapping of the state in described status poll processing module query State server MAP relation table.
13. as claim 11 or 12 described systems, it is characterized in that, include mail in the described subscription client and generate sending module; When file transmit leg client receives that described processing server circular document recipient client is not during presence, start this mail generation sending module and obtain file recipient email address, adopt lettergram mode to send in the described mail server file waiting for transmission.
14. system as claimed in claim 13 is characterized in that, also includes notification message in the described subscription client and resolves Executive Module; After file recipient client is reached the standard grade, if receive the file transfer notification message that logon server sends, resolve the particular content that Executive Module parses the file transfer notification message by this notification message, and when user's selective reception file, login described mail server, from self mailbox, download transfer files.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100659283A CN100463397C (en) | 2006-03-27 | 2006-03-27 | File transmission method and system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100659283A CN100463397C (en) | 2006-03-27 | 2006-03-27 | File transmission method and system |
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| Publication Number | Publication Date |
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| CN101047511A CN101047511A (en) | 2007-10-03 |
| CN100463397C true CN100463397C (en) | 2009-02-18 |
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| CNB2006100659283A Active CN100463397C (en) | 2006-03-27 | 2006-03-27 | File transmission method and system |
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