WO2020048189A1 - Génération d'image - Google Patents

Génération d'image Download PDF

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Publication number
WO2020048189A1
WO2020048189A1 PCT/CN2019/092547 CN2019092547W WO2020048189A1 WO 2020048189 A1 WO2020048189 A1 WO 2020048189A1 CN 2019092547 W CN2019092547 W CN 2019092547W WO 2020048189 A1 WO2020048189 A1 WO 2020048189A1
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WO
WIPO (PCT)
Prior art keywords
webpage
picture
address
conversion request
storage
Prior art date
Application number
PCT/CN2019/092547
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English (en)
Chinese (zh)
Inventor
钟建华
Original Assignee
北京三快在线科技有限公司
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Publication date
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Publication of WO2020048189A1 publication Critical patent/WO2020048189A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/02—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP]

Definitions

  • Embodiments of the present disclosure relate to the field of computer technology, and in particular, to a picture generating method, a server, an electronic device, and a readable storage medium.
  • QR codes pictures with QR codes are used instead of links as sharing objects, which can effectively increase users' interest in sharing objects.
  • generating a picture with a two-dimensional code can be completed on a browser side.
  • the main steps include: First, traverse the DOM (Document Object Model) of the HTML (Hyper Text Markup Language) web page through a JavaScript script, and convert the CSS attributes of each element into a Canvas drawing operation; Then, draw the converted Canvas into an image.
  • DOM Document Object Model
  • HTML Hyper Text Markup Language
  • Embodiments of the present disclosure provide a picture generating method, a server, an electronic device, and a readable storage medium to solve the above-mentioned problems in the prior art picture generating.
  • an embodiment of the present disclosure provides a picture generating method, including:
  • an embodiment of the present disclosure provides a picture generating server, including:
  • a conversion request receiving module configured to receive a webpage conversion request, where the webpage conversion request includes a reference webpage address
  • a webpage conversion module configured to generate a picture according to an access process to the reference webpage address
  • the picture storage module is configured to upload the picture to a preset storage server to obtain a storage address of the picture, where the storage address is used to return to the initiator of the webpage conversion request.
  • an electronic device including:
  • the processor, the memory, and the computer program stored on the memory and executable on the processor are characterized in that the processor implements the foregoing picture generating method when the processor executes the computer program.
  • an embodiment of the present disclosure provides a computer program including computer-readable code that, when the computer-readable code runs on a computing processing device, causes the computing processing device to execute the foregoing picture generating method.
  • an embodiment of the present disclosure provides a computer-readable storage medium in which the foregoing computer program is stored.
  • An embodiment of the present disclosure provides a picture generating method.
  • the web page conversion request includes a reference web page address; generating a picture according to an access process to the reference web page address; and uploading the picture to a preset
  • the storage server obtains a storage address of the picture, and the storage address is used to return to the initiator of the webpage conversion request.
  • the embodiments of the present disclosure can use a server to convert a web page into an image, support web page conversion with complex page layouts, avoid using Canvas to limit the conversion speed, success rate, and quality, and do not depend on the conversion of CSS attributes; Processing capabilities can support cross-platform conversion and applet conversion.
  • FIG. 1 shows a flowchart of specific steps of a picture generating method according to an embodiment of the present disclosure
  • FIG. 2 is a schematic diagram of an interaction relationship between each picture generating server and other devices in the embodiment of the present disclosure
  • FIG. 3 is a flowchart of specific steps of another picture generating method according to an embodiment of the present disclosure
  • FIG. 4 is a structural diagram of a picture generating server provided by an embodiment of the present disclosure.
  • FIG. 5 is a structural diagram of another picture generation server provided by an embodiment of the present disclosure.
  • FIG. 6 schematically illustrates a block diagram of an electronic device for performing a method according to the present disclosure.
  • FIG. 7 schematically illustrates a storage unit for holding or carrying program code implementing a method according to the present disclosure.
  • FIG. 1 shows a flowchart of steps in a method for generating a picture provided by an embodiment of the present disclosure, including:
  • Step 101 Receive a webpage conversion request, where the webpage conversion request includes a reference webpage address.
  • the embodiments of the present disclosure are applied to a picture generation server, which can convert a reference webpage into a picture and return the storage location of the picture concurrently.
  • the server may be a background server corresponding to a browser (for example, Chrome).
  • the server system is Centos7, and the operating environment is Nodejs 8.0 and above.
  • Puppeteer's Npm package Google ’s official Chromium image is not accessible in the country, so it needs to be set to an image download address available in China.
  • C ++ 11 dependent libraries In order for Chromium to run on the server, you also need to install some C ++ 11 dependent libraries.
  • Chinese fonts such as Pingfang need to be installed.
  • a web page conversion request is sent to the image generation server.
  • the webpage conversion request carries a reference webpage address.
  • the reference webpage is the current webpage where the target webpage is shared.
  • the current webpage can be the same as the target webpage, or it can be set to another webpage according to the business scenario, for example, the event homepage corresponding to the webpage.
  • the embodiment of the present disclosure can generate a personalized picture according to the current webpage, especially personal information exists in the current webpage, for example, personal picture, account and other information.
  • the webpage conversion request may be initiated by a server corresponding to the social platform, or may be initiated by a terminal where the social platform is located, which is not limited in the embodiments of the present disclosure.
  • Step 102 Generate a picture according to an access process to the reference webpage address.
  • the reference webpage address is accessed, and the data of the webpage after rendering is saved as a picture.
  • the picture generating server may access the reference webpage address through a browser (for example, Chromium) without a UI (User Interface) mode.
  • Chromium is Google's open source browser, which uses the same kernel as Chrome, and can run in a UI-less mode on a Linux server.
  • the image generation server accesses the reference webpage address to obtain webpage data from a background server corresponding to the reference webpage address.
  • the webpage data can be rendered and parsed to obtain the rendered webpage data and saved as a picture.
  • Step 103 Upload the picture to a preset storage server to obtain a storage address of the picture, where the storage address is used to return to the initiator of the webpage conversion request.
  • the image generating server and the storage server may be connected through a network, so as to implement image upload and return of the storage address.
  • the storage location may be a network address of the storage server plus a picture identifier. Therefore, the target sharing user can download the picture from the storage address. It should be noted that the storage address is different from the web page address.
  • the storage address is the storage address of the picture, and the web page address is the access address for the web page.
  • the user ’s terminal first downloads the picture from the storage address, and then obtains the web page address from the picture , Jump to a landing page, which is a page shared with users.
  • the picture is deleted from the picture generating server to prevent the picture generating server from storing too many pictures, resulting in performance degradation.
  • the initiator can be the server corresponding to the social platform or the terminal where the social platform is located. As shown in FIG. 2, the image generation server returns the storage address to the initiator.
  • an embodiment of the present disclosure provides a picture generating method, which includes: receiving a web page conversion request, the web page conversion request including a reference web page address; and generating a picture according to an access process to the reference web page address Uploading the picture to a preset storage server to obtain a storage address of the picture, where the storage address is used to return to the initiator of the webpage conversion request.
  • This embodiment of the present application describes an optional picture generation method.
  • FIG. 3 a flowchart of specific steps of another method for generating a picture provided by an embodiment of the present disclosure is shown.
  • Step 201 Receive a webpage conversion request, where the webpage conversion request includes a reference webpage address.
  • step 101 For this step, refer to the detailed description of step 101, and details are not described herein again.
  • step 202 if the request parameter verification fails, access to the reference webpage address is denied, and a first prompt message is returned.
  • the request parameters are used to control the style, size, and format of the picture, including but not limited to: screenshot mode, originating terminal, and pixel compression ratio.
  • the initiating terminal is the terminal where the webpage conversion request is initiated, for example, a tablet computer, a mobile phone with various screen sizes, etc., because different screen sizes require different sizes of displayed pictures, and therefore need to know the type of the terminal. You can determine the screen size to produce a picture that fits it.
  • the length, format, and content of the request parameters can be verified. For example, if the length of a parameter is required to be 10 bits, then the parameter verification fails when the length is 8. For another example, if a parameter requires a mixture of numbers and characters, the verification of a purely numeric parameter fails; for example, the value of a parameter If it is not a preset value range, the verification fails.
  • the embodiments of the present disclosure can first check the request parameters to avoid a failure in generating a picture or an error in generating a picture.
  • step 203 if the reference webpage address is not in the preset whitelist, access to the reference webpage address is denied, and a second prompt message is returned.
  • the white list may consist of addresses of reference webpage addresses, and webpages not in the whitelist are not allowed to generate images.
  • the web addresses in the whitelist are legal or allowed web addresses.
  • the embodiments of the present disclosure can perform image conversion on a designated webpage, avoid image conversion of illegal webpages, and improve the success rate of webpage conversion images.
  • Step 204 Perform rendering analysis on the webpage data corresponding to the reference webpage address to obtain rendered data.
  • the browser Before the browser can display the webpage data, the browser needs to render and parse the webpage data.
  • the data after rendering and parsing is not displayed. Since the data at this time already has a display effect, it can be saved as a picture, and the obtained picture has the same display effect as the web page.
  • Step 205 Add the two-dimensional code data to the rendering data.
  • the two-dimensional code data corresponds to a web page address, and the user can access the web page corresponding to the two-dimensional code through the picture.
  • the user can get the operation menu by long-pressing the picture, and choose to access the web page corresponding to the QR code from the menu, and then the user can switch to the web page.
  • the position of the two-dimensional code data in the rendering data is not limited.
  • it can be a barcode or other graphic code that binds a web address.
  • Step 206 Save the rendered data as a picture.
  • the picture may be saved as a binary stream.
  • the picture includes two-dimensional code data.
  • Step 207 Upload the picture to a preset storage server to obtain a storage address of the picture, where the storage address is used to return to the initiator of the webpage conversion request.
  • step 103 For this step, refer to the detailed description of step 103, and details are not described herein again.
  • Step 208 If the cache flag corresponds to a cache strategy, save the storage address and the webpage conversion request to a preset cache area.
  • the location of the buffer area may be set according to an actual application scenario, and is not limited in the embodiment of the present disclosure.
  • Embodiments of the present disclosure may cache a storage address of a picture after generating the picture for the first time for subsequent direct use.
  • Step 209 In the case that the cache flag corresponds to a cache strategy, obtain a storage address corresponding to the webpage conversion request from the cache area.
  • the embodiments of the present disclosure can use cached pictures to avoid repeatedly generating pictures, and improve the efficiency of converting web pages into pictures.
  • step 209 may precede step 204.
  • Step 210 Generate a picture according to an access process to the reference webpage address in a case where the cache flag correspondingly does not adopt a cache strategy or fails to obtain a storage address from the cache.
  • the embodiments of the present disclosure can preferentially return the storage address in the cache area, thereby improving the efficiency of generating pictures.
  • steps 204 to 206 can be used to generate pictures.
  • a webpage conversion request when a webpage conversion request is received, first, whether the request supports caching; then, if caching is supported, the storage address of the picture is obtained from the cache according to the reference webpage address and the request parameters. When the record with the reference web page address and the request parameter match, it means hitting the cache. The storage location in the record is the storage location of the picture corresponding to the reference web page address. Finally, if the cache misses, or if caching is not supported, step 102 Or 204 to 206 methods to generate pictures.
  • an embodiment of the present disclosure provides a picture generating method, which includes: receiving a web page conversion request, the web page conversion request including a reference web page address; and generating a picture according to an access process to the reference web page address Uploading the picture to a preset storage server to obtain a storage address of the picture, where the storage address is used to return to the initiator of the webpage conversion request.
  • request parameter verification can improve the success rate of image generation
  • whitelist verification can avoid illegal requests
  • caching can improve the efficiency of image generation.
  • FIG. 4 a structural diagram of a picture generating server is shown as follows.
  • the conversion request receiving module 301 is configured to receive a webpage conversion request, where the webpage conversion request includes a reference webpage address.
  • the webpage conversion module 302 is configured to generate a picture according to an access process to the reference webpage address.
  • the picture storage module 303 is configured to upload the picture to a preset storage server to obtain a storage address of the picture, where the storage address is used to return to the initiator of the webpage conversion request.
  • an embodiment of the present disclosure provides a picture generating server.
  • the server includes a conversion request receiving module for receiving a webpage conversion request, and the webpage conversion request includes a reference webpage address; the webpage conversion module is configured to: Generating a picture according to an access process to the reference webpage address; a picture storage module, configured to upload the picture to a preset storage server to obtain a storage address of the picture, and the storage address is used to return to the webpage for conversion The originator of the request.
  • FIG. 5 a structural diagram of another picture generation server is shown, as follows.
  • the conversion request receiving module 401 is configured to receive a webpage conversion request, where the webpage conversion request includes a reference webpage address.
  • the first rejection conversion module 402 is configured to reject access to the reference webpage address and return a first prompt message if the request parameter verification fails.
  • the second rejection conversion module 403 is configured to, when the reference webpage address is not in the preset white list, deny access to the reference webpage address and return a second prompt message.
  • the webpage conversion module 404 is configured to generate a picture according to an access process to the reference webpage address.
  • the web page conversion module 404 includes:
  • the rendering data acquisition sub-module 4041 is configured to perform rendering analysis on the webpage data corresponding to the reference webpage address to obtain rendering data.
  • a two-dimensional code adding sub-module 4042 is configured to add the two-dimensional code data to the rendering data.
  • the picture generation sub-module 4043 is configured to save the rendered data as a picture.
  • the picture storage module 405 is configured to upload the picture to a preset storage server to obtain a storage address of the picture, where the storage address is used to return to the initiator of the webpage conversion request.
  • a storage address cache module 406 is configured to save the storage address and the webpage conversion request to a preset cache area when the cache flag corresponds to a cache strategy.
  • a storage address obtaining module 407 is configured to obtain a storage address corresponding to the webpage conversion request from the cache area when the cache flag corresponds to a cache policy.
  • the second webpage conversion module 408 is configured to generate a picture according to an access process to the reference webpage address in a case where the cache flag correspondingly does not adopt a cache policy or fails to obtain a storage address from the cache.
  • an embodiment of the present disclosure provides a picture generating server.
  • the server includes a conversion request receiving module address block for receiving a webpage conversion request, and the webpage conversion request includes a reference webpage address; a first rejection A conversion module configured to refuse access to the reference webpage address and return a first prompt message if the request parameter verification fails, and a second rejection conversion module is configured to prevent the reference webpage address from being in a preset white space;
  • the webpage conversion module is used to generate a picture according to the access process to the reference webpage address;
  • the picture storage module is used to upload the picture To a preset storage server to obtain a storage address of the picture, where the storage address is used to return to the initiator of the webpage conversion request; and a storage address caching module is configured to use a caching strategy corresponding to the caching flag, Storing the storage address and the webpage conversion request in a preset buffer area; the storage address acquisition module uses In the case where the cache flag corresponds to
  • request parameter verification can improve the success rate of image generation
  • whitelist verification can avoid illegal requests
  • caching can improve the efficiency of image generation.
  • An embodiment of the present disclosure further provides an electronic device including a processor, a memory, and a computer program stored on the memory and executable on the processor.
  • the processor is implemented when the processor executes the computer program.
  • An embodiment of the present disclosure also provides a computer program including computer-readable code that, when the computer-readable code runs on a computing processing device, causes the computing processing device to execute the picture generating method of the foregoing embodiment.
  • An embodiment of the present disclosure also provides a computer-readable storage medium in which the computer program of the foregoing embodiment is stored.
  • the description is relatively simple.
  • the related parts refer to the description of the method embodiment.
  • the device embodiments described above are only schematic, wherein the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, may be located One place, or it can be distributed across multiple network elements. Some or all of the modules may be selected according to actual needs to achieve the objective of the solution of this embodiment. Those of ordinary skill in the art can understand and implement without creative labor.
  • the various component embodiments of the present disclosure may be implemented in hardware, or in software modules running on one or more processors, or in a combination thereof.
  • a microprocessor or a digital signal processor (DSP) may be used in practice to implement some or all functions of some or all components in a computing processing device according to an embodiment of the present disclosure.
  • the present disclosure may also be implemented as a device or device program (e.g., a computer program and a computer program product) for performing part or all of the methods described herein.
  • Such a program that implements the present disclosure may be stored on a computer-readable storage medium or may have the form of one or more signals. Such signals can be downloaded from an Internet website, provided on a carrier signal, or provided in any other form.
  • FIG. 6 illustrates a computing processing device that can implement a method according to the present disclosure.
  • the computing processing device traditionally includes a processor 510 and a computer program product or computer-readable storage medium in the form of a memory 520.
  • the memory 520 may be an electronic memory such as a flash memory, an EEPROM (Electrically Erasable Programmable Read Only Memory), an EPROM, a hard disk, or a ROM.
  • the memory 520 has a storage space 530 of program code 531 for performing any of the method steps in the above method.
  • the storage space 530 for program code may include respective program codes 531 respectively for implementing various steps in the above method. These program codes can be read from or written into one or more computer program products.
  • Such computer program products include program code carriers such as hard disks, compact disks (CDs), memory cards or floppy disks.
  • Such a computer program product is typically a portable or fixed storage unit as described with reference to FIG. 7.
  • the storage unit may have a storage section, a storage space, and the like arranged similarly to the memory 520 in the computing processing device of FIG. 6.
  • the program code may be compressed, for example, in a suitable form.
  • the storage unit includes computer-readable code 531 ', that is, code that can be read by, for example, a processor such as 510, and these codes, when run by a computing processing device, cause the computing processing device to execute the method described above Steps.
  • one embodiment means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present disclosure. Also, please note that the word examples "in one embodiment” herein do not necessarily refer to the same embodiment.
  • any reference signs placed between parentheses shall not be construed as limiting the claim.
  • the word “comprising” does not exclude the presence of elements or steps not listed in a claim.
  • the word “a” or “an” preceding an element does not exclude the presence of a plurality of such elements.
  • the disclosure may be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In the unit claim listing several devices, several of these devices may be embodied by the same hardware item.
  • the use of the words first, second, and third does not imply any order. These words can be interpreted as names.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Information Transfer Between Computers (AREA)

Abstract

L'invention concerne un procédé de génération d'image, se rapportant au domaine technique des ordinateurs. Le procédé de génération d'image comprend : la réception d'une demande de conversion de page Web, la demande de conversion de page Web comprenant une adresse d'une page Web de référence (101) ; la génération d'une image en fonction du processus d'accès à l'adresse de la page Web de référence (102) ; et le téléversement de l'image vers un serveur de mémoire prédéfini et l'obtention d'une adresse de mémoire de l'image, l'adresse de mémoire devant être renvoyée à une extrémité d'initiateur de la demande de conversion de page Web (103).
PCT/CN2019/092547 2018-09-07 2019-06-24 Génération d'image WO2020048189A1 (fr)

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CN201811044887.9A CN109165357A (zh) 2018-09-07 2018-09-07 图片生成方法、服务器、电子设备及可读存储介质
CN201811044887.9 2018-09-07

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CN110365776B (zh) * 2019-07-17 2021-05-04 京东方科技集团股份有限公司 图片批量下载方法、装置、电子设备及存储介质
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