WO2006003318A1 - Procede et dispositif de traitement de requetes generees par un logiciel de navigation - Google Patents
Procede et dispositif de traitement de requetes generees par un logiciel de navigation Download PDFInfo
- Publication number
- WO2006003318A1 WO2006003318A1 PCT/FR2005/001449 FR2005001449W WO2006003318A1 WO 2006003318 A1 WO2006003318 A1 WO 2006003318A1 FR 2005001449 W FR2005001449 W FR 2005001449W WO 2006003318 A1 WO2006003318 A1 WO 2006003318A1
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- WIPO (PCT)
- Prior art keywords
- information
- server
- request
- main
- navigation software
- Prior art date
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/90—Details of database functions independent of the retrieved data types
- G06F16/95—Retrieval from the web
- G06F16/957—Browsing optimisation, e.g. caching or content distillation
- G06F16/9574—Browsing optimisation, e.g. caching or content distillation of access to content, e.g. by caching
Definitions
- the present invention relates to a method and a device for processing queries generated by navigation software to obtain, from an information server, a main information set and secondary information sets associated with the set of information.
- main information More specifically, the present invention is in the field of accelerating the obtaining of information from a telecommunications network such as the Internet.
- the state of the art offers different solutions. These are, for example, the use of cache memory, the download command a priori information that may be requested later.
- the object of the invention is to solve the disadvantages of the prior art by proposing a method and a device for processing queries generated by at least one navigation software for obtaining information from a network such as, for example, the Internet network which enable faster access to this information without the need for proxy servers with significant memory space.
- the invention proposes a method for processing queries generated by a browser to obtain, from an information server hosting information sets, a main information set and sets of secondary information associated with the main set of information, the navigation software is associated with a memory storing the main and secondary information sets received by the navigation software, characterized in that the method comprises steps, performed by an agent of:
- the invention relates to a device for processing queries generated by a browser to obtain, from an information server hosting information sets, a main information set and sets of secondary information associated with the main information set, the navigation software is associated with a memory storing the main and secondary information sets received by the navigation software, characterized in that the device comprises:
- determination means for each set of secondary information determined if the secondary information set hosted by the information server is different from the set of secondary information stored in the memory associated with the navigation software; means for receiving a request generated by the navigation software for obtaining a set of secondary information associated with the main set of information,
- the proxy is a proxy server connected to at least one browser software via a first telecommunication network
- the information server is connected to the proxy server via a proxy server.
- a second telecommunication network whose information transfer rate is less than the information transfer rate of the first telecommunication network.
- the present invention makes it possible to manage several navigation software and reduces the inconveniences related to the throughput of the second telecommunication network.
- the determination of a previous reception by the navigation software of the main information set and the determination of the sets of secondary information associated with the main information set are performed by the proxy from an updated table from previous requests made by the browser software and the table further includes for each set of secondary information timestamp information.
- the various determinations are made in a simple manner by the proxy without requiring a significant memory allocation to it.
- the determination of a difference between the set of secondary information hosted by the information server and the set of secondary information stored in the memory associated with the browser is broken down into:
- the difference determination is performed quickly and does not require the completion of complex operations by the agent.
- the request generated by the navigation software for obtaining a set of secondary information is a conditional request comprising a timestamp of the last modification of said set of secondary information known from the software of navigation and the other predetermined timestamp is the timestamp included in the conditional request.
- the proxy Knowing the timestamp of the last modification of the known secondary information set of the navigation software, the proxy has reliable information to determine whether the requested secondary information set has been modified.
- the navigation software for obtaining a set of secondary information associated with the main information set if the request generated by the navigation software for obtaining a set of secondary information associated with the main information set is received before the timestamp of the last modification of said set of secondary information is received, it delays the transfer of the request to the information server.
- the identifiers of the secondary sets are transferred in a single message to the information server and the information server transfers said message to a time stamp server which determines the last modification of each secondary set. included in the message.
- the invention also relates to the computer program stored on an information carrier, said program comprising instructions for implementing the method described above, when it is loaded and executed by a computer system.
- FIG. . 1 represents the architecture of the information transfer acceleration system according to the invention
- FIG. 2 shows a schematic view of the proxy server according to the invention
- FIG. 3 shows an exemplary timestamp table used by the present invention
- FIG. 4 represents the algorithm executed by the proxy server according to the present invention.
- Fig. 1 represents the architecture of the information transfer acceleration system according to the invention.
- the information transfer acceleration system comprises a proxy server 10 to which clients are connected via a telecommunication network 14. Each customer has a navigation software 11. A software of Navigation 11 provides access to web pages in accordance with HTTP 1.1.
- HTTP is the acronym for HyperText Transfer Protocol.
- the HTTP 1.1 protocol is described in detail in the recommendation of Naturally, other protocols may be used in the present invention.
- the telecommunication network 14 is for example a telecommunication network such as a wired or radio local network having a high rate.
- FIG. 1 only two Web browsing software l ia and 11b are shown. These navigation software are hosted on the computers, personal assistants, or even the mobile phones of the clients of the local network 14. Of course, a larger number of web browsers 11 are connected to the proxy server 10.
- a proxy server is conventionally called a "proxy" server.
- the proxy server 10 is an intermediary between the different users of the local network 14 and another telecommunications network 18 such as the Internet network.
- the navigation software 11 connects to the proxy server 10 and forwards a request for it. obtaining a main information set such as a web page.
- the proxy server 10 then connects to the information server 12 that the browser 11 client seeks to attach and transmits the request.
- the information server 12 gives the web page to the proxy server 10, which will in turn transmit the web page to the navigation software 11.
- the navigation software 11 is associated with cache memories that store the information previously received via of the Internet network 18.
- main web pages or sets of information, as well as the different objects, or sets of secondary information, associated with these web pages received by a browser 11, are stored in the cache memory of the computer comprising the navigation software 11 having requested this information. These pages and objects are thus accessible by this navigation software 11.
- the information server 12 is associated with a time stamp server 15.
- the information server 12 is able to process static web pages and / or dynamic web pages.
- a static web page is a page whose content is stored at a predetermined address of the information server 12.
- a dynamic web page is a page whose program that allows the composition of this page is stored at a predetermined address of the server of information 12.
- the time stamping server 15 is able to time stamp the last modification made on the various objects associated with a web page.
- a single information server 12 is shown for the sake of simplification. Of course, several information servers are accessible via the Internet network 18.
- a time stamping server 15 is integrated with each information server 12 with which it is associated and therefore constitutes a module of it.
- a timestamp server is associated with each of the web servers.
- a time stamp server is associated with a plurality of web servers connected to the time stamp server via the Internet network 18.
- the proxy server 10 upon receiving the request for obtaining a web page, the proxy server 10 is able to check whether objects, or sets of secondary information, are associated with the Web page, or set of main information, requested.
- the proxy server 10 is able to transfer to the information server 12 hosting the requested web page, a request to obtain timestamp information of the last modifications made on the different objects being associated with the requested web page.
- the request for obtaining timestamp information is for example and without limitation an HTTP 1.1 compliant request for obtaining a timestamp page and is addressed to the information server 12.
- This timestamp page comprises an identifier of the timestamp server 15 associated with the information server 12 as well as the identifiers of the different objects associated with the requested web page.
- the information server 12 is able to redirect such a request to the time stamping server 15.
- the time stamp server 15 is able to execute the script or in other words the program associated with this page.
- the time stamp server 115 timestamps the last modification of each object associated with the requested web page and returns, for each of these objects, the timestamp information to the proxy server 10 via the information server 12.
- the proxy server 10 from this timestamp information, updates a timestamp table such as for example that shown in FIG. 3 and redirects or not the requests for obtaining the objects associated with the requested page to the information server 12.
- each computer having a navigation software 11 has a proxy 10 capable of executing the method as described in the present invention.
- the telecommunication network 14 is therefore not necessary.
- Fig. 2 represents a schematic view of the proxy server according to the invention.
- the proxy server 10 comprises a processor 100 connected via a communication bus 101 to a ROM 104, a random access memory 103, a mass storage means such as a hard disk 104, a network interface 106 with the telecommunication network 14, a network interface 107 with the telecommunication network 18 and a man-machine interface 105.
- a processor 100 connected via a communication bus 101 to a ROM 104, a random access memory 103, a mass storage means such as a hard disk 104, a network interface 106 with the telecommunication network 14, a network interface 107 with the telecommunication network 18 and a man-machine interface 105.
- the processor 100 is able to receive, via the network interface 106, requests for obtaining Web pages, or sets of main information, generated by web browsers 11.
- the processor 100 is able to determine if sets of secondary information are associated with these web pages using a timestamp table for each navigation software associated with it. These time stamp tables are stored in the hard disk 104.
- the processor 100 is able to obtain, via the network interface 107, timestamp information on the sets of secondary information.
- the processor 100 is able to redirect or not depending on the timestamp information obtained, requests for obtaining sets of secondary information generated by web browsers 11.
- the human machine interface 105 is for example constituted by a screen , a keyboard and / or a mouse and among other things makes it possible to define the duration of the delays as used in the algorithm of FIG. 4.
- Fig. 3 shows an exemplary timestamp table used by the present invention.
- a time stamp table is associated with each navigation software associated with the proxy server 10.
- the table of FIG. 3 consists of four columns marked 30 to 33 and three lines marked 35 to 37. In column 30, are referenced the URLs of the various pages previously visited by the user of the browser software associated with the proxy server 10.
- column 31 the different sets of secondary information associated with the previously visited web pages are referenced. This information is more precisely objects such as images, audiovisual sequences or others.
- Column 31 is updated at step E416 of the algorithm of FIG. 4 which will be described later.
- Column 32 includes the timestamp of the secondary information sets associated with the web pages previously visited and recorded in column 31.
- Column 32 is updated at step E410 of the algorithm of FIG. 4 which will be described later.
- the timestamps included in this column are representative of the dates and times of the last modifications of the known secondary information sets of the proxy server 10.
- Column 33 includes the date and time of receipt of the timestamp information included in column 32.
- Column 33 is updated at step E411 of the algorithm of FIG. 4 which will be described later.
- the timestamp table For each visited web page, the timestamp table includes as many rows as sets of secondary information or objects associated with it. According to our example, three objects 01, 02, 03 are associated with the web page of address www.sili.fr.
- Fig. 4 represents the algorithm executed by the proxy server according to the present invention.
- the algorithm of FIG. 4 is executed at each reception of a request made by a navigation software 11 associated with the proxy server 10 to obtain a Web page or objects associated with a Web page of an information server such as by For example, the information server 12 of FIG. 1.
- a request for obtaining a set of information I is received by the network interface 106 and retransmitted to the processor 100 of the proxy server 10.
- the set of information is a set of information main or a secondary information set associated with a main information set.
- This request is preferably and in a nonlimiting manner a request of type "GET" compliant with the HTTP 1.1 protocol.
- This request is alternatively compliant with the HTTP 1.0 protocol.
- the processor 100 checks whether the requested information set is a primary set of information such as a web page or a set of secondary information such as an object associated with a web page.
- the processor 100 checks whether in the request of the set of information I is included a reference field comprising the identifier, denoted R, of the set of information principal of which the identifier of the requested information set has been obtained. This field is called "Referencing" Header Field in the HTTP 1.1 protocol.
- step E402. the processor 100 verifies whether the page has previously been received by the browser software that issued the request.
- the processor 100 checks whether the identifier of the requested page is included in the column 30 of the table of FIG. 3 of the client that generated the request.
- the processor 100 updates the timestamp table in step E403 by creating a new line, for example line 35, and inserting in the column 30 the identifier of the requested page.
- This identifier is for example the URL www.sili.fr.
- the processor 100 transfers the request GET on the Internet network 18 to the step E404 via the network interface 107.
- step E402 the processor 100 checks whether identifiers of sets of secondary information, or objects, associated with the main set of information, or web page, are known to the proxy server 10. For this, the processor 100 checks if identifiers are included in column 31 of FIG. 3. If not, the processor 100 proceeds to step E412 and transfers the GET request to the Internet 18 via the network interface 107.
- the processor 100 proceeds from step E405 to step E406. At this step, the processor 100 reads in the timestamp table the different objects associated with the identifier of the web page included in the request and forms a request destined for the information server. 12 to obtain a web page.
- the request is for example a request of type GET.
- This request includes the identifier of the timestamping server 15 associated with the server 12 as well as the different identifiers of the different objects read in the timestamp table.
- the request includes the identifiers of the objects 01, 02 and 03.
- the information server 12 Upon receipt of this request, the information server 12 transfers this request to the timestamp server 15.
- This request addresses a dynamic page.
- the timestamping server 15 executes the script associated with the requested web page and then forms the content of this page.
- the script associated with this page is according to the invention a script that inserts, in the web page, the date and time of the last modification of each object identified in the request.
- the processor 100 activates a counter noted tempo.
- the proxy server 10 receives the dynamic page including the date and time of the last modification of each object identified in the request.
- step E409 the timer
- the processor 100 updates at the steps E410 and E411 the columns 32 and 33 of FIG. 3. For example, the processor 100 inserts column 32 line 35, the date of the last modification of the object 01, the 02/06/2004 at 8:00, column 32, line 36 the date of the last modification of the object 02, the
- the processor 100 also inserts in column 33 the date and time of reception of the dynamic page. This date and time of receipt is the date and time of the internal clock of the proxy server 10. This is for example the 04/06/04 at 8:00.
- the processor 100 transfers the request GET on the Internet network 18 to the step E412 via the network interface 107. This operation performed, the processor 100 returns to the step E400 and waits for the reception of a new request to process.
- step E401 If, during the test of step E401, it is determined that in the request of the set of information I is included a reference field comprising the identifier, denoted R, of the main set of information from which the identifier of the requested information set has been obtained, the processor 100 proceeds to step E413.
- the processor 100 checks at this step whether or not the web page to which the requested object refers is known from the proxy server 10. For this, the processor 100 checks whether the identifier R is included in the column 30 of FIG. 3.
- the processor 100 proceeds to the step E414 and transfers the request GET on the Internet network 18 via the network interface 107.
- processor 100 proceeds to step E415.
- the processor 100 checks whether identifiers of sets of secondary information, or objects, associated with the main set of information, or Web page, are known to the proxy server. For this, the processor 100 checks whether identifiers are included in the column 31 of FIG. 3. If not, processor 100 proceeds to step E416 and updates the timestamp table of FIG. 3. More specifically, the processor 100 creates a new line and inserts the identifier I of the requested page. The processor 100 then puts in step E417 the timestamp and date / time fields of obtaining the columns 32 and 33 to the zero value for this new line.
- the processor 100 transfers the request GET to the Internet network 18 at step E418. This operation performed, the processor 100 returns to step E400 and waits for the reception of a new request to be processed.
- step E415 the processor 100 determines that object identifiers associated with the web page are known to the proxy server 10.
- the processor 100 proceeds to the step E419.
- the processor 100 calculates, for each associated object, the variable
- V representative of the difference between the current date and time of the proxy server 10 and respectively each date and time stored in the column 33 of the table of FIG. 3.
- step E420 the processor 100 checks in step E420 if the variable V is less than a predetermined threshold noted "maxdelay".
- a date and time considered as not fresh that is to say when the variable V is greater than the predetermined threshold "maxdelay "it will not be taken into account.
- the predetermined threshold is 24 hours and the date and time of receipt of the request received in step E400 is June 6, 2004 at 1OhOO, objects 01, 02 and 03 are considered as old and therefore likely to have been modified. If the date and time of receipt of the request received at step E400 is June 4, 2004 at 18:00, objects 01, 02 and 03 are considered as recent and therefore may not have been modified.
- step E421 checks whether the timer activated in step E407 of the present algorithm is active or not. This check verifies whether a request has been made for obtaining a new object before the page requested in step E406 has been received. If so, the processor 100 returns to step E419 and repeats steps E419 to E421 a predetermined number of times representative of a waiting time for reception of the page requested in step E406 or as long as the variable V is greater than the predetermined threshold maxdelay.
- step E421 This check holds an object request on hold when a request for timestamp information has been previously requested and not yet received. It should be noted here that, alternatively, the present algorithm does not include step E421.
- step E407 If the timer activated in step E407 has been deactivated in step E409, the processor 100 goes from step E421 to E422 and transfers the GET request to the Internet network 18. This operation performed, the processor 100 returns to step E400 and waits for the reception of a new request to be processed.
- step E423 If the variable V is below the predetermined threshold "maxdelay", the processor 100 goes from step E420 to step E423 and checks whether the requested object in the request is valid or not. The verification is done according to dates and times. These dates and times correspond to the date and time that are included in the GET type request received in step E400 as well as the date and time included in column 32 of FIG. 3. Indeed, the request received in step E400 is a conditional request. This request is for example a request of the type "If -Modified-Since" ":” HTTP-date according to the protocol HTTP 1.1.
- the processor 100 reads from the time stamp table of FIG. 3 the timestamp information of the object Ol of the column line 32. This date being equal to the date included in the request, the object requested has not been changed since the date and time included in the conditional GET request.
- the processor 100 proceeds to step E424 and generates a "304 not Modified" response message conforming to the HTTP 1.1 protocol.
- the client software upon receipt of such a message, consults the cache memory associated with it and thus obtains the requested object.
- the processor 100 proceeds to step E425 and transfers the GET request to the Internet network 18. This operation performed, the processor 100 returns to step E400 and waits for the reception of a new request treat.
- other information such as a code, a digital signature, or a tattoo allocated to each modification of an object are used to check whether a change has been made or not.
- the time stamping table of FIG. 4 does not include line 33 and the verification of the freshness of the information is performed with counter triggers when receiving active pages.
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Abstract
Description
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Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/570,660 US20070271318A1 (en) | 2004-06-15 | 2005-06-13 | Method and Device for Processing Requests Generated by Browser Software |
EP05777323A EP1761876A1 (fr) | 2004-06-15 | 2005-06-13 | Procede et dispositif de traitement de requetes generees par un logiciel de navigation |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0406437 | 2004-06-15 | ||
FR0406437A FR2871595B1 (fr) | 2004-06-15 | 2004-06-15 | Procede et dispositif de traitement de requetes generees par un logiciel de navigation |
Publications (1)
Publication Number | Publication Date |
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WO2006003318A1 true WO2006003318A1 (fr) | 2006-01-12 |
Family
ID=34947146
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2005/001449 WO2006003318A1 (fr) | 2004-06-15 | 2005-06-13 | Procede et dispositif de traitement de requetes generees par un logiciel de navigation |
Country Status (4)
Country | Link |
---|---|
US (1) | US20070271318A1 (fr) |
EP (1) | EP1761876A1 (fr) |
FR (1) | FR2871595B1 (fr) |
WO (1) | WO2006003318A1 (fr) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2901386A1 (fr) * | 2006-05-16 | 2007-11-23 | Personnalite Numerique Sas Soc | Support personnel de memoire de masse portatif et systeme informatique d'acces securise a un reseau par des utilisateurs. |
US20080235326A1 (en) * | 2007-03-21 | 2008-09-25 | Certeon, Inc. | Methods and Apparatus for Accelerating Web Browser Caching |
CN103051722B (zh) * | 2012-12-26 | 2015-10-14 | 新浪网技术(中国)有限公司 | 一种确定页面是否被劫持的方法及相关设备 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6253234B1 (en) * | 1997-10-17 | 2001-06-26 | International Business Machines Corporation | Shared web page caching at browsers for an intranet |
US20030061272A1 (en) * | 1997-06-02 | 2003-03-27 | Balachander Krishnamurthy | Method and apparatus for cache validation for proxy caches |
US6601090B1 (en) * | 1999-06-25 | 2003-07-29 | Nortel Networks Limited | System and method for servicing internet object accessess from a coupled intranet |
US6744452B1 (en) * | 2000-05-04 | 2004-06-01 | International Business Machines Corporation | Indicator to show that a cached web page is being displayed |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6505230B1 (en) * | 1999-05-14 | 2003-01-07 | Pivia, Inc. | Client-server independent intermediary mechanism |
US20020046262A1 (en) * | 2000-08-18 | 2002-04-18 | Joerg Heilig | Data access system and method with proxy and remote processing |
US20040073604A1 (en) * | 2002-10-11 | 2004-04-15 | Kazuhiro Moriya | Cache control method of proxy server with white list |
-
2004
- 2004-06-15 FR FR0406437A patent/FR2871595B1/fr not_active Expired - Fee Related
-
2005
- 2005-06-13 WO PCT/FR2005/001449 patent/WO2006003318A1/fr active Application Filing
- 2005-06-13 EP EP05777323A patent/EP1761876A1/fr not_active Withdrawn
- 2005-06-13 US US11/570,660 patent/US20070271318A1/en not_active Abandoned
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20030061272A1 (en) * | 1997-06-02 | 2003-03-27 | Balachander Krishnamurthy | Method and apparatus for cache validation for proxy caches |
US6253234B1 (en) * | 1997-10-17 | 2001-06-26 | International Business Machines Corporation | Shared web page caching at browsers for an intranet |
US6601090B1 (en) * | 1999-06-25 | 2003-07-29 | Nortel Networks Limited | System and method for servicing internet object accessess from a coupled intranet |
US6744452B1 (en) * | 2000-05-04 | 2004-06-01 | International Business Machines Corporation | Indicator to show that a cached web page is being displayed |
Also Published As
Publication number | Publication date |
---|---|
FR2871595A1 (fr) | 2005-12-16 |
EP1761876A1 (fr) | 2007-03-14 |
US20070271318A1 (en) | 2007-11-22 |
FR2871595B1 (fr) | 2007-08-03 |
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