CN101635826B - Method for acquiring addresses of network video programs - Google Patents
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Abstract
The invention relates to the technical field of network communication, and provides a method for acquiring addresses of network video programs. The method comprises the following steps that: a browser is used to open a plurality of webpages having audio and video programs and a player is ready to play the programs; the player requests the webpages from a remote video server, the player acquires the network address of the request video source according to the parameters transferred by the webpages, and the data source is remotely read and played; and the interactive information between the player and the remote video server are acquired and then analyzed so as to acquire the addresses of the network audio and video programs. Because the mode of combining the browser control and the network address monitoring is utilized to find the network audio and video addresses, and the browser is used for judging whether the webpages include the audio and video player and can control the playing of the player, the problems that the audio and video webpage scripts are complex and that the FLV is difficult to acquire the addresses from the webpages are solved.
Description
Technical field
The present invention relates to network communications technology field, more specifically, the present invention relates to a kind of method of obtaining addresses of network video programs.
Background technology
Obtaining addresses of network video programs is along with the growth of network video programs in recent years, and especially the growth of the video of FLV form grows up.The difficulty that the address discovery of network video programs faces mainly is that the script that comprises the page complexity of audio/video program is difficult to handle, and the address of FLV video is difficult to obtain from page analysis.The user cannot download in watching the process of video, and online watching again cushioned in the face of continuous, and the analyzing and processing of these video files is also needed file in download.Thereby the audio-video document adress analysis has important practical significance efficiently.
The special adress analysis software that has some similar functions at present, but these software processes website limited amounts at the FLV video, underaction belongs to client application in addition substantially, and incompatibility is handled on a large scale.The present method of obtaining the audio frequency and video address generally also is confined to judge by the suffix name, can't effectively obtain the network address that comprises complex script and FLV format video in the present video frequency program.
Summary of the invention
Can't handle the defective of the network address with complex script and FLV format video in obtaining for overcoming existing network audio/video program address, the present invention proposes a kind of method of obtaining addresses of network video programs.
According to an aspect of the present invention, proposed a kind of method of obtaining addresses of network video programs, having comprised:
Step 10), use browser are opened a plurality of webpages that comprise audio/video program, and audio/video player begins broadcast program;
Step 20), described audio/video player is to the described webpage of remote video server request, described audio/video player obtains the network address of the video source of needs request according to the parameter of page transmission, plays from long-range reading of data source;
Step 30), obtain and analyze the interactive information of described audio/video player and remote video server, obtain described addresses of network video programs.
Wherein, in the step 10), when described audio/video player can not be play automatically, described step also comprised:
Step 110), filter the webpage that does not comprise video program content;
Step 120), discern described audio/video player, determine the position of control button, by configuration, realize automatic Play Control to described audio/video player to described position.
Wherein, step 110) also comprise:
Whether comprise Object or Embed label by the identification page, the page that does not comprise described label substance is filtered;
By to the size of the Object/Embed element that comprises in the page and the identification of positional information, the page that will not comprise video frequency program filters.
Wherein, step 120) also comprise:
By to the size of the Object/Embed element that comprises in the page and the identification of positional information, audio/video player is distinguished mutually with the Object/Embed element of other class;
, the dimensional structure of specific player and control button determine that the configuration of the fixedly relative position that button is distributed realizes playing at the automatically clicking of specific website audio/video player by being distributed.
Wherein, step 20) also comprise:
Audio/video player is to the described webpage of remote video server request, described browser display request results, and other page elements that comprises audio/video player that will need is asked to server once more, when the request audio/video player ready, the network address of the video source that audio/video player obtains asking according to the parameter of page transmission is from long-range reading of data source and play.
Wherein, step 30) also comprise:
For setting up the feature decision tree in each website, the corresponding website of each node of feature decision tree, the child node of described each node is the characteristic information of website;
Analyze the solicited message of audio/video player;
According to the solicited message of analyzing,, that the audio frequency and video URL that analyzes is corresponding with the page address that comprises these audio frequency and video by the feature decision tree that coupling is set up.
Wherein, the characteristic information of described website is respectively audio/video player type, website audio-video document type, website audio-video document address structure and audio-video document address character string feature.
Wherein, comprise the http protocol head Content-Type of the http protocol head User-Agent of expression audio/video player type, the HTTP head Referer that represents the address of audio/video player, expression demand file type, the Content-Length and the file URL feature of expression backspace file size in the described request information.
The present invention makes full use of the user to the access characteristics of browsing the audio frequency and video page and the HTTP network characterization of audio frequency and video address class simultaneously, has realized the more general judgement to network audio-video, has solved the difficulty that new website is judged and website revision brings judgement; Utilize the browser control and the network address to monitor the mode that combines and find the network audio-video address, and use browser and judge whether the page comprises the broadcast of audio/video player and controls playing device, solve the problem that audio frequency and video page script complexity and FLV are difficult to obtain from the page address, simultaneously, solve the automation address discovery problem of this class webpage that this class needs the user to click could to play; And utilize the feature decision tree, the judgement of parallelization is carried out, improved the efficient of judging; Method realization of the present invention is simple and applicability is good, and the time of actual motion and memory consumption are all very low.
Description of drawings
Fig. 1 is according to the audio/video program network address overview flow chart that obtains of the present invention;
Fig. 2 is the concrete applicating flow chart that obtains the method for the audio/video program network address.
Embodiment
Below in conjunction with the drawings and specific embodiments a kind of method of obtaining addresses of network video programs provided by the invention is described in detail.
Addresses of network video programs finds to exist two large problems at present, one is the problem of complex script, in being analyzed, the statistical observation of a large amount of audio frequency and video websites finds, the website provides the webpage of audio/video program to comprise complicated Javascript script, and content for script also has nothing in common with each other, the audio/video information (such as the network address) that needs all is hidden among the result of script executing, is difficult to obtain.Another is the problem of FLV formatted data, because browser is supported plug-in unit usually, most of video website is used the video of FLV form, and this class video frequency program occupies the quantity more than 90% in current video program, and in browser client use FLASH player plays, these video address can't obtain from content of pages, and these FLASH plug-in unit internal informations also can't obtain from browser.
By method of the present invention, discovery is analyzed in monitoring to this machine data bag, which kind of audio frequency and video play mode no matter, this machine can't be hidden with the packet of telecommunication, by to the analysis of packet and the behavior of browsing the audio frequency and video webpage with browser kernel imitation user, can obtain the audio frequency and video address information.
Fig. 1 is according to the audio/video program network address overview flow chart that obtains of the present invention, in according to one embodiment of present invention, a kind of method of obtaining addresses of network video programs is to utilize browser control and network monitoring, watches the operating characteristics of internet program, the batch video network address discovery service that the network service feature forms a kind of full-automation by user capture.
As shown in Figure 1, during user's browse network video frequency program, at first use browser to open the webpage that comprises video frequency program, perhaps open a plurality of links that comprise video frequency program, wait for the video player buffering of embedded web page and the broadcast of beginning program then; If some video player requirement user this moment clicks start button and could play, the user need wait to be played at broadcast button relevant position a mouse click again.
The user is when browsing page, suppose that webpage is a webpage that comprises video frequency program, should there be the embedding player in its web page contents, and the player of displaying video programs is embedded within Object or the Embed label usually, whether comprise the home page filter that these two labels can not comprise a part video frequency program by the identification page and fall, thereby avoid insignificant analysis.In addition, the player of video frequency program has the visual size of certain length and width usually, and generally occupies visibility point comparatively placed in the middle in webpage.By to the size of the Object/Embed element that comprises in the page and the identification of positional information, the home page filter that a part can not comprised video frequency program is fallen, thereby avoids insignificant analysis; And player can being distinguished mutually with the Object/Embed element of other commercial papers, thereby the operation to player of realization automation.
Suppose that certain website is the website that a specialty provides Video service, data source and suite of services system with autonomous property right, the website provides Video service generally can use and fixes one or several specific player, for these specific players, the dimensional structure of player is identical, control button also is distributed in fixing relative position, by to the fixedly configuration of relative position, can realize that mouse beacon is realized the automatic operation to broadcast button at the interactive operation of the click broadcast of specific website.
After the clicked broadcast of video frequency program, player is to this video frequency program of remote server request, browser shows the result, and other page elements that comprises player that will need is asked to each remote server once more, obtain and show, ready when the player of request, player obtains the network address of the video source of needs request according to the parameter of page transmission, begins from long-range reading of data source and plays.These communication informations all send by local network interface card or accept, by to the intercepting and capturing of these information with analyze the real video program data source address that can obtain to use in the playing process.
Suppose that certain website is data source and the suite of services system that a specialty provides the website of Video service to have autonomous property right, the website is providing having of Video service following similitude: (1) player similitude, website are generally selected for use and are fixed one or several player; (2) similitude of website audio-video document type, website provide the file type of Video service generally fixing; (3) similitude of website audio-video document address structure, the data source that video generally is provided is from specific several domain names or IP address; (4) video file address character string characteristic similarity, the bibliographic structure of this address has similitude.
Based on above similitude, from network http protocol layer, the request of this video class address has the feature that is different from other, and has similitude: (1) http protocol head User-Agent, concerning player, this is the classification explanation of player, the player difference that different company produces, this can be used to distinguish video request and non-video request, also can be used to distinguish the request of different players; (2) Referer of HTTP head, owing to use player source basic fixed, the source that the Referer of video address request indicates request is the address of player just, can be used to distinguish video and non-video request, concerning different websites, because this location conten is different substantially, therefore can be used to distinguish the request of different websites; (3) http protocol head Content-Type, this territory is used for representing the demand file type, can be in order to distinguish; (4) Content-Length, this domain representation backspace file size, size can be in order to identification greater than the feature of other class file usually according to audio-video document; (5) file URL feature, the address of generally independent Video service be from fixing several IP or domain name, and, also close usually on the bibliographic structure of URL, such as the length of every grade of catalogue, whole directory levels, URL comprises fixed character string etc.
Because the complete independence of the URL that flow analysis is come out according to network card data, the corresponding difficulty of URL with the audio frequency and video URL that analyzes and the page that comprises these audio frequency and video, usually analysis audio frequency and video address that can only serial, by setting up the feature decision tree according to above-mentioned several characteristic, thereby accomplish the parallel address discovery of a plurality of websites for each website.Because the feature of different web sites can be distinguished mutually, thereby accomplish the serial of single website, the parallel address discovery in many websites, improve and find efficient.
Fig. 2 illustrates a specific implementation process of method of the present invention, as shown in the figure:
Step S1, a set importing a plurality of URL of a plurality of websites to be determined is used for study, monitors and obtain to monitor in the analytic process URL and the corresponding request and the response message of acquisition by program, preserves the website of the URL of input at that time simultaneously;
Step S2 monitors the URL that obtains with these and passes to the player program, test URL type, and the output of calling player by inspection judges whether and can play, and determines that URL is audio frequency and video class URL or non-audio frequency and video class URL;
Step S3, these URL are set up the feature decision tree according to above-mentioned feature, (normal decision tree is set up: from root with audio frequency and video class URL correspondence, add feature one by one, arrive leaf node at last, this path from the root to the leaf node, all features of a corresponding website) to each different leaf node, write down corresponding website simultaneously, other type is corresponded to a non-audio frequency and video class URL leaf node;
Step S4 imports url list to be analyzed, and control browser a plurality of windows are parallel opens the URL of the page to be analyzed of a plurality of different websites, and record URL, the website is corresponding with window and turn to S5, simultaneously network interface card is carried out monitoring and analysis turning to S11;
Step S5, the control browser is opened the page, after the loading of finishing the page, beginning to carry out Object and Embed element that the page is embedded searches, there are not Object and Embed element just not to have player if find yet, turn to S6, otherwise continue to search this positions of elements and size, if it is (too little as the video player size that all sizes and position all do not meet the player feature, the position is in location advertising) turn to S6, otherwise it is mutual whether the inspection player needs to click, if desired, turn to S7;
Step S6, this page of mark URL analyzes failure, turns to S8;
Step S7, check the size of this player, (oneself player is all only used in each website basically according to the size of the pre-configured relative player of broadcast start button, and the website quantity that the needs click could be play seldom, prestored information is few), and the size of the relative browser window of player, the absolute position of calculating broadcast button, mouse beacon is double-clicked in this location triggered;
Step S8, browser make regular check on the interpretation of result state of a plurality of page URL in the mode of timer, if page URL analysis state changes, turn to S9, otherwise turn to S10;
Step S9 checks the browser window of this page URL correspondence, controls the page URL next to be analyzed that this browser window loads same web site, if there have not been the input data, this window finishes, if all windows all finish, uses and finishes, otherwise turn to S8;
Step S10, if the review time of page URL is overtime, this URL analysis state of mark is overtime, turns to S8;
Step S11, circulation and is carried out protocal analysis from the network interface card read data packet, and the request of the URL that listens to and corresponding HTTP is related with response message, turns to S12;
Step S12, decomposite feature from the URL that listens to, and mate the result of coupling with the feature of feature decision tree, whether obtain this URL is an audio frequency and video URL, if, check the website of this URL correspondence, find corresponding page URL to be analyzed, it is the audio-video network address, turn to S8 to carry out then next time, if not, abandon.
Method of the present invention has made full use of the network user's the characteristic of browsing the audio frequency and video webpage and the network service characteristic of navigation process middle pitch video class address, thereby it is wide to have obtained a kind of RM scope of application, the network audio-video address discovery method that parallel ability is good also has higher discovery efficient under large-scale data application background.
It should be noted that at last, above embodiment is only in order to describe technical scheme of the present invention rather than the present technique method is limited, the present invention can extend to other modification, variation, application and embodiment on using, and therefore thinks that all such modifications, variation, application, embodiment are in spirit of the present invention and teachings.
Claims (8)
1. method of obtaining addresses of network video programs comprises:
Step 10), use browser are opened a plurality of webpages that comprise audio/video program, wait for the audio/video player broadcast program of embedded web page;
Step 20), described audio/video player is to remote video server request audio/video program, described audio/video player obtains the network address of the video source of needs request according to the parameter of page transmission, plays from long-range reading of data source;
Step 30), obtain and analyze the interactive information of described audio/video player and remote video server, obtain described addresses of network video programs; Wherein, according to the characteristic information of each website and each website set up the feature decision tree and and the solicited message of audio/video player be complementary, the audio frequency and video URL that analyzes is corresponding with the page address that comprises these audio frequency and video.
2. the process of claim 1 wherein that in the step 10), when described audio/video player can not be play automatically, described step 10) also comprised:
Step 110), filter the webpage that does not comprise video program content;
Step 120), discern described audio/video player, determine the position of control button, by configuration, realize automatic Play Control to described audio/video player to described position.
3. the method for claim 2, wherein, step 110) be specially:
Whether comprise Object or Embed label by the identification page, the page that does not comprise described label substance is filtered;
By to the size of the Object/Embed element that comprises in the page and the identification of positional information, the page that will not comprise video frequency program filters.
4. the method for claim 2, wherein, step 120) be specially:
By to the size of the 0bject/Embed element that comprises in the page and the identification of positional information, audio/video player is distinguished mutually with the Object/Embed element of other class;
, the dimensional structure of specific player and control button determine that the configuration of the fixedly relative position that button is distributed realizes playing at the automatically clicking of specific website audio/video player by being distributed.
5. the process of claim 1 wherein step 20) be specially:
Audio/video player is to the described audio/video program of remote video server request, described browser display request results, and other page elements that comprises audio/video player that needs to the remote video server request once more, when the request audio/video player ready, the network address of the video source that audio/video player obtains asking according to the parameter of page transmission is from long-range reading of data source and play.
6. the process of claim 1 wherein step 30) be specially:
For setting up the feature decision tree in each website, the corresponding website of each node of feature decision tree, the child node of described each node is the characteristic information of website;
Analyze the solicited message of audio/video player;
According to the solicited message of analyzing,, that the audio frequency and video URL that analyzes is corresponding with the page address that comprises these audio frequency and video by the feature decision tree that coupling is set up.
7. the method for claim 6, wherein, the characteristic information of described website is respectively audio/video player type, website audio-video document type, website audio-video document address structure and audio-video document address character string feature.
8. the method for claim 6, wherein, comprise the http protocol head Content-Type of the http protocol head User-Agent of expression audio/video player type, the HTTP head Referer that represents the address of audio/video player, expression demand file type, the Content-Length and the file URL feature of expression backspace file size in the described request information.
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