CN103970799B - A kind of generation method of electronic document, device and client - Google Patents
A kind of generation method of electronic document, device and client Download PDFInfo
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Abstract
The present invention provides a kind of generation method of electronic document, device and client, wherein method includes: that S1, server obtain and store mother book source code；S2, the mother book source code is carried out to the philosophical works that typesetting generation does not support the space of a whole page to reform, and stores the composition information of the philosophical works；S3, the philosophical works is sent to the sub-book client being adapted with the typesetting of the philosophical works.It solves the display problem of different terminals screen, while ensure that the safety problem of copyright protection.Further, can be realized sub-book client and mother book source code interactive function between servers, if the i.e. server interaction request that receives the sub-book client, returns to the sub-book client for the corresponding implementing result of the interaction request according to the composition information.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of computer application, in particular to a method and a device for generating an electronic document and a client.
[ background of the invention ]
With the continuous development and increasing popularity of computer technology, the traditional publishing industry is also shifting to electronic publishing. Currently, the mainstream electronic book formats are mainly classified into two types: one type does not support formatting and layout rearrangement, represented by PDF, and the other type supports formatting and layout rearrangement, represented by epub. At present, epub and the like can carry out typesetting again according to the resolution size of a reader, but the security for preventing piracy is poor, and in addition, the concept of page numbers is lost, and the interaction on the basis is difficult to realize. The PDF format cannot support format and layout rearrangement, but is widely adopted by the network publisher having a copyright protection requirement at present because of the advantages of being capable of supporting cross-platform, supporting a very long file, supporting integration of multimedia information, and the like, particularly the advantage of high security and reliability.
Most of the existing network publishing parties currently typeset published contents directly into a PDF format and provide the PDF format to a server, and then documents of the PDF are downloaded by all clients. The core of this method is to prevent piracy, but the existing method can not automatically typeset to fit the screen size, for example, there is a large difference between the PDF display of the 4 inch screen and the PDF display of the 10 inch screen, and for the PDF document that can be displayed on the 10 inch screen, it needs to manually move around on the 4 inch screen to display normally. And the most important characteristic of electronic publishing, namely the interactive function, is lost in the mode, namely, the functions of copying, searching, editing and the like cannot be realized on the basis.
[ summary of the invention ]
In view of the above, the present invention provides a method, an apparatus, and a client for generating an electronic document, which can adapt to the display of a terminal screen on the basis of ensuring security.
The specific technical scheme is as follows:
a method of generating an electronic document, the method comprising:
s1, the server acquires and stores the source code of the mother book;
s2, typesetting the source code of the mother book to generate a sub-book which does not support the layout rearrangement format, and storing the typesetting information of the sub-book;
and S3, sending the sub-book to a sub-book client side suitable for the typesetting of the sub-book.
According to a preferred embodiment of the present invention, after the step S3, the method further includes:
and S4, if the interactive request of the sub-book client is received, returning the execution result corresponding to the interactive request to the sub-book client according to the typesetting information.
According to a preferred embodiment of the present invention, the step S1 specifically includes:
a server acquires a parent book source code in a specified format provided by a copyright party; or,
the server obtains a parent book source code of a specified format, and the search engine aggregates the search results and converts the search results into the parent book source code.
According to a preferred embodiment of the present invention, the specified format includes the following structured text format: BDF, HTML, XML, or tagged txt format.
According to a preferred embodiment of the present invention, the format that does not support rearrangement comprises: PDF or XPS.
According to a preferred embodiment of the present invention, the step S2 includes one or a combination of the following two forms:
the method comprises the steps that in a first mode, the original book source codes are typeset in advance according to the type of a commonly used terminal screen, and sub-books which are suitable for the type of the commonly used terminal screen are respectively generated;
and secondly, responding to the reading request of the sub-book client, and typesetting the source code of the main book according to the screen type of the terminal where the sub-book client is located.
According to a preferred embodiment of the invention, if the parent book source code is updated in version, typesetting again aiming at the updated parent book source code of the version to generate a new version of sub-book, and sending the new version of sub-book to the sub-book client; or,
and if the parent book source code is not subjected to version updating but has content updating, determining the corresponding position of the updated content in the sub-book according to the typesetting information of the sub-book, updating the corresponding content in the sub-book, and sending the updated content in the sub-book to the sub-book client.
According to a preferred embodiment of the present invention, returning the execution result corresponding to the interactive request to the sub-book client according to the layout information includes:
s41, the server determines the position of the sub-book content aimed at by the interaction request in the source code of the mother book according to the typesetting information;
s42, the server executes processing corresponding to the action type contained in the interaction request on the original book source code according to the position determined in the step S41;
and S43, returning the execution result to the sub-book client.
According to a preferred embodiment of the present invention, when the action type included in the interactive request is retrieval, the step S42 is: the server determines a text corresponding to the position determined in the step S41, retrieves the position where the text appears from the source code of the parent book, and converts the retrieved position into the position of the child book as an execution result according to the layout information;
when the action type included in the interactive request is replication, the step S42 is: the server determines a text corresponding to the position determined in the step S41, and sends the determined text to the sub-book client for storage to a clipboard;
when the action type included in the interaction request is edit, the step S42 is: the server determines the text corresponding to the position determined in step S41, edits the determined text according to the editing content included in the interactive request, and takes the editing result as an execution result.
According to a preferred embodiment of the present invention, the step S3 specifically includes:
when a reading request of a sub-book client is received, determining a typesetting type suitable for the sub-book client, and sending the content requested by the sub-book client in the sub-book of the typesetting type to the sub-book client.
According to a preferred embodiment of the present invention, the server records and limits the number of contents continuously requested by the sub-book client; or,
the server records and limits the time interval of requesting the content by the sub-book client; or,
the server records and limits the total amount of content requested by the sub-book client.
An apparatus for generating an electronic document, the apparatus being provided on a server side, the apparatus comprising:
the parent book acquisition unit is used for acquiring and storing a parent book source code;
the typesetting storage unit is used for typesetting the source code of the mother book to generate a sub-book which does not support the layout rearrangement format and storing the typesetting information of the sub-book;
and the sub-book interaction unit is used for sending the sub-book to a sub-book client side which is suitable for the typesetting of the sub-book.
According to a preferred embodiment of the present invention, the apparatus further comprises: an interactive execution unit;
the sub-book interaction unit is also used for receiving an interaction request of the sub-book client and returning an execution result of the interaction execution unit to the sub-book client;
and the interactive execution unit is used for executing the interactive request according to the typesetting information.
According to a preferred embodiment of the present invention, the parent book acquiring unit acquires a parent book source code in a specified format provided by a copyright owner; or, the acquisition search engine aggregates the search results and converts the search results into the parent book source code in the specified format.
According to a preferred embodiment of the present invention, the specified format includes the following structured text format: BDF, HTML, XML, or tagged txt format.
According to a preferred embodiment of the present invention, the format that does not support rearrangement comprises: PDF or XPS.
According to a preferred embodiment of the present invention, the layout storage unit takes one or a combination of the following two forms when performing layout:
the method comprises the steps that in a first mode, the original book source codes are typeset in advance according to the type of a commonly used terminal screen, and sub-books which are suitable for the type of the commonly used terminal screen are respectively generated;
and secondly, responding to the reading request of the sub-book client, and typesetting the source code of the main book according to the screen type of the terminal where the sub-book client is located.
According to a preferred embodiment of the present invention, if the version of the parent book source code is updated, the typesetting storage unit performs typesetting again for the updated version of the parent book source code to generate a new version of the sub-book, and the sub-book interaction unit sends the new version of the sub-book to the sub-book client; or,
if the parent book source code is not subjected to version updating but has content updating, the typesetting storage unit determines the corresponding position of the updated content in the child book according to the typesetting information of the child book, updates the corresponding content in the child book, and the child book interaction unit sends the updated content in the child book to the child book client.
According to a preferred embodiment of the present invention, the interaction execution unit specifically determines, according to the layout information, a position of the sub-book content in the source code of the original book to which the interaction request is directed, and then executes, according to the determined position, processing corresponding to the action type included in the interaction request on the source code of the original book.
According to a preferred embodiment of the present invention, when the action type included in the interactive request is retrieval, the interactive execution unit determines a text corresponding to the determined position, retrieves the position where the text appears in the source code of the original book, and converts the retrieved position into the position of the sub-book as an execution result according to the layout information;
when the action type contained in the interaction request is copying, the interaction execution unit determines a text corresponding to the determined position, and sends the determined text to the sub-book client for storage to a clipboard;
and when the action type contained in the interactive request is editing, the interactive execution unit determines the text corresponding to the determined position, edits the determined text according to the editing content contained in the interactive request, and takes the editing result as an execution result.
According to a preferred embodiment of the present invention, when receiving a reading request from a sub-book client, the sub-book interaction unit determines a layout type suitable for the sub-book client, and sends the content requested by the sub-book client in the sub-book of the layout type to the sub-book client.
According to a preferred embodiment of the present invention, the apparatus further comprises: and the access control unit is used for recording and limiting the quantity of the contents continuously requested by the sub-book client, or recording and limiting the time interval of the contents requested by the sub-book client, or recording and limiting the total quantity of the contents requested by the sub-book client by the server.
A sub-book client, the sub-book client comprising:
the reading request unit is used for sending a reading request to the server;
and the sub-book receiving unit is used for receiving a sub-book which is sent by the server and is typeset correspondingly with the sub-book client, wherein the sub-book is generated after typesetting the source code of the parent book requested by the reading request and does not support the layout rearrangement format.
According to a preferred embodiment of the present invention, the sub-book client further includes:
the interactive request unit is used for sending an interactive request by the server;
and the result receiving unit is used for receiving an execution result sent by the server, and the execution result is obtained by typesetting the server into the typesetting information of the sub-book according to the source code of the parent book.
According to a preferred embodiment of the present invention, when the interaction request includes an action type of retrieval, the execution result is a position where a text requested to be retrieved by the sub-book client appears in the source code of the parent book;
when the action type included in the interaction request is copying, the execution result is a text requested to be copied by the sub-book client, and the result receiving unit is further used for storing the received execution result to the clipboard;
and when the action type contained in the interaction request is editing, the execution result is the result of the editing request of the sub-book client.
According to the technical scheme, the parent book source codes are stored at the server side, the child books which do not support the layout rearrangement format are generated by typesetting the parent book source codes, the parent book source codes are used as the original format, the child books which are suitable for different terminal screens are used as the target format, the display problem of different terminal screens is solved, and in addition, the safety problem of copyright protection is ensured while the child books which do not support the layout rearrangement format.
[ description of the drawings ]
FIG. 1 is a flowchart of a method for generating an electronic document according to an embodiment of the present invention;
FIG. 2 is a diagram of a device for generating an electronic document according to a second embodiment of the present invention;
fig. 3 is a structural diagram of a sub-book client according to a third embodiment of the present invention.
[ detailed description ] embodiments
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
In the invention, the mode of storing a single target format at the original server side is converted into the mode of adopting a parent book and a child book at the server, namely, the source code of the parent book is stored, and the source code of the parent book is typeset to generate the child book, wherein the child book does not support a layout rearrangement format on one hand, and is suitable for different types of terminal screens on the other hand. The method provided by the present invention is described in detail below by way of examples.
The first embodiment,
Fig. 1 is a flowchart of a method for generating an electronic document according to an embodiment of the present invention, where a server according to an embodiment of the present invention may be a common electronic book server, or may be a cloud server in a cloud computing environment. As shown in fig. 1, the method comprises the steps of:
step 101: the server acquires and stores the parent book source code.
The acquisition of the source code of the mother book in this step may adopt, but is not limited to, the following ways:
in the first mode, the copyright direction server provides the original book source code in a specified format, for example, the copyright side such as an author or a publishing company provides a document according to the specified format, and the specified format can be a structured text format such as BDF, HTML, XML or a tagged txt format.
And secondly, the search engine aggregates the search results, converts the search results into the original book source codes in the specified format and provides the original book source codes to the server. That is, the search engine extracts the resulting information from the search results to form an electronic book of a specified format, that is, the parent book source code. Likewise, the specified format may be a structured text format such as BDF, HTML, XML, or tagged txt format.
The parent book source code has a unique number, the invention does not limit the specific numbering algorithm, any numbering algorithm can be adopted as long as uniqueness and security are ensured, for example, the numbering algorithm can be a secure hash algorithm for document contents, and the first 12 characters are extracted as the number.
In addition, when the parent book source codes are stored, fingerprints can be generated aiming at the parent book source codes, and the fingerprints are used for content deduplication on one hand and rapid anti-plagiarism on the other hand.
Step 102: and typesetting the source code of the mother book to generate the sub-book which does not support the layout rearrangement format, and storing the typesetting information of the sub-book.
In this step, the typesetting of the source code of the primary book may be performed for the commonly used terminal screen types, that is, the source code of the primary book is typeset for the terminal screen types of the primary book, and the sub-books adapted to the terminal screen types of the primary book are generated respectively. For example, currently, the commonly used terminal screens are 4 inches and 10 inches, the sub-book clients (i.e., electronic book readers) mounted on the terminal screens are also generally adapted to 4 inches and 10 inches, and then the parent book source codes are respectively typeset at the server end for the terminal screen types of 4 inches and 10 inches, so as to respectively generate a sub-book adapted to the terminal screen type of 4 inches and a sub-book adapted to the terminal screen type of 10 inches. The terminal screen type can be screen size, screen resolution and the like, and different sub-books can be further generated by combining different word sizes when typesetting. Although the same parent book source code corresponds to the child books adapted to different terminal screen types, the number and the book name of the parent book source code are unique, so that the reading request and the response of the interactive request in the following steps can be conveniently realized.
Besides the above manner, typesetting of the original book source code based on request triggering can be performed. When a reading request of a sub-book client for a certain parent book source code is received, if a sub-book which is typeset in a way of being suitable for the sub-book client is not stored at present (namely the terminal screen type of the sub-book client is suitable), typesetting the parent book source code according to the terminal screen type of the sub-book client, and generating a sub-book which is typeset in a way of being suitable for the sub-book client; and if the sub-book which is typeset according to the sub-book client side is stored, the sub-book is not generated for the sub-book client side.
Naturally, a combination of the above two manners may also be adopted, for example, typesetting the source code of the parent book according to the commonly used terminal screen types, and respectively generating the child books adapted to the commonly used terminal screen types; and for the unusual terminal screen types, triggering the typesetting of the source codes of the mother book when receiving the reading request of the sub-book client of the type, and generating the sub-book which is suitable for the terminal screen type of the sub-book client.
The typesetting technology adopted by the embodiment of the invention can be based on a xelex typesetting technology, or a square typesetting technology, or an indesingen typesetting technology of adobe corporation, and the like.
For the generated sub-book, in order to ensure the security of copyright protection, a format that does not support layout rearrangement, preferably PDF format, which has the characteristics of compatibility with all systems, what you see is what you get, tamper resistance, etc., may be adopted as long as a format having similar characteristics, for example, XPS format may also be adopted.
In order to ensure the correctness of the typesetting, the typesetting result can be checked, the checking can be performed manually, a layout alarm function such as a xellex typesetting system can also be adopted, and if the number of output layout alarms exceeds a preset threshold (for example, 8), the checking is considered to be failed. If the audit fails, the typesetting result shows that the sub-books obtained by typesetting are unqualified, and poor reading experience is brought to the user, so that the typesetting can be performed again after the source code of the main book is adjusted.
Step 103: and sending the sub-book to a sub-book client side suitable for the typesetting of the sub-book.
When the sub-book is sent, an active push mode, for example, a subscription-based active push mode, may be adopted. Preferably, the sub-book composed in accordance with the sub-book client can also be sent based on the reading request of the sub-book client, and the specific process is as follows:
and the sub-book client sends a reading request to the server, wherein the reading request comprises the content requested by the sub-book client and the sub-book client information. The content requested by the sub-book client may include: the server can determine the corresponding sub-book according to the requested e-book information, and can also include the requested page number, the reading request for the e-book is usually based on the page number, the server searches the requested page number from the corresponding sub-book, and sends the content of the page number to the sub-book client. Of course, the server may send the corresponding sub-book to the sub-book client entirely based on the entire electronic book. In addition, the reading request comprises the sub-book client information, and the server can determine the typesetting type suitable for the sub-book client information, so that the sub-book content requested by the sub-book client in the typesetting type is sent.
The sub-books in the invention have the same updating problem as other APPs, if the parent book source code is changed seriously, the version is updated, under the condition, the parent book source code of the updated version is typeset again to generate the sub-book of the new version, and the sub-book of the new version is sent to the sub-book client which has requested the sub-book before.
If the content of the parent book source code is updated but the version is not updated, for example, only some wrongly written words are modified, or a new page is added or a page is deleted, etc., the corresponding position of the updated content in the child book can be determined according to the layout information of the child book, then the corresponding content in the child book only needs to be updated without performing layout again, and then the updated content in the child book is sent to the child book client. In this case, the content sent to the sub-book client only relates to the updated content, usually only at the page level, which saves traffic loss for the sub-book client significantly.
Based on the mechanism of the parent book and the child book, the popularization information can be embedded in the source code of the parent book, so that the popularization information can be cooperatively displayed on the child books on the client sides of the child books, and the popularization information can be timely updated through the updating mechanism.
When the sub-book is sent to the sub-book client, the generated sub-book (e.g. the sub-book in the PDF format) which does not support the layout format can be sent to the sub-book client, which is suitable for the case that the copyright protection requirement is not so high, and the content in the PDF format can be edited and copied. If a higher copyright protection level is required, the generated sub-book which does not support the layout format can be converted into a picture page by page, for example, the PDF format is converted into a picture in a format such as PNG or DJVU, and then the picture is sent to the sub-book client.
In this step, in order to ensure security and copyright protection, the sub-book client can acquire the sub-book only when the user logs in, that is, the server only responds to the reading request of the sub-book client in the login state, and sends the sub-book to the sub-book client. Some limiting strategies may be added on this basis, which may include, but are not limited to, the following strategies, for example:
strategy 1, the server records and limits the content quantity continuously requested by the sub-book client, for example, when the continuous page number of the sub-book requested by a certain sub-book client exceeds a set value, the reading request of the sub-book client is refused to be responded.
And 2, recording and limiting the time interval of requesting the content by the sub-book client by the server, for example, when a certain sub-book client sends reading requests rapidly and frequently, if the time interval of sending the reading requests is smaller than a preset threshold value, refusing to respond to the reading requests of the sub-book client.
And 3, the server records and limits the total content number requested by the sub-book client, for example, when the total page number of the sub-book content requested by the sub-book client in the login process exceeds a set value, the reading request of the sub-book client is refused to be responded.
The above strategies are all to prevent malicious users from obtaining a large amount of content or frequently obtaining content for piracy, the reading request includes a user id, and the recording in the server and the implementation of the above strategies are implemented based on the user id. The above strategies are only a few examples of the embodiments of the present invention, and other strategies for preventing malicious users that can be thought of by those skilled in the art may also be adopted, which is not exhaustive here.
In addition, a watermark with a user identifier can be printed on the sub-book sent to the sub-book client based on the user id, so that the method can be used for tracing a subsequent piracy path.
Since the layout information from the parent book source code to the child book is already stored at the server side, the layout information can be regarded as a reverse reference grammar file, and the child book can be returned to the parent book source code through the layout information. The typesetting information records the corresponding positions of all contents (including characters, pictures, hyperlinks and the like) of the sub-book in the source code of the main book, and the server can acquire the corresponding positions of the contents in the sub-book in the source code of the main book according to the typesetting information. Based on the typesetting information, the interactive function of the electronic book can be realized, for example, the functions of editing, copying, searching and the like can be realized through the sub-book client. The interaction function is embodied in step 104.
Step 104: and if the server receives the interactive request of the sub-book client, returning an execution result corresponding to the interactive request to the sub-book client according to the typesetting information.
Specifically, the server first receives an interaction request from the sub-book client. The sending of the interaction request by the sub-book client is triggered by a user action, for example, when the user has a copy request, a retrieval request or an editing request, a part of content is selected on the sub-book, and a function option is clicked (including but not limited to clicking a function option provided on the sub-book client, or clicking a function option displayed on the function option after clicking a right mouse button, or clicking a function option by means of keyboard input, etc.). The sub-book client then sends an interaction request containing the action type and the sub-book content (i.e. the content selected by the user) to which the interaction request is directed. The sub-book content for which the interactive request is directed may include a sub-book number, a sub-book version, and a position (page number, offset, or coordinate) of the user-selected content in the sub-book. Besides, the interactive request may also include information such as encryption mode, user id, etc.
After receiving the interactive request, the server determines the position of the content of the sub-book, which is aimed at by the interactive request, in the source code of the parent book according to the typesetting information of the sub-book, and then executes the processing corresponding to the action type contained in the interactive request on the source code of the parent book according to the determined position. The following describes processing performed by the server by taking three types of actions, i.e., search, copy, and edit, as examples.
If the action type contained in the interactive request is retrieval, namely the user wants to retrieve the position of a certain content appearing in the sub-book, the server firstly determines the position of the content in the source code of the parent book according to the typesetting information, finds the text corresponding to the position, retrieves the position of the text appearing in the source code of the parent book, converts the retrieved position into the position of the sub-book as an execution result according to the typesetting information and returns the execution result to the client side of the sub-book. Thus, the user can acquire the position of the content to be searched in the sub-book.
If the action type contained in the interactive request is copying, namely the user wants to copy a certain content in the sub-book, the server firstly determines the position of the content in the source code of the parent book according to the typesetting information, determines a text corresponding to the position, and sends the text to the sub-book client for the sub-book client to store to the clipboard, so that the copying of the content in the sub-book is completed, and the user can copy the content from the clipboard to other places.
If the action type contained in the interactive request is editing, namely the user edits certain content in the sub-book, the server firstly determines the position of the content in the source code of the mother book according to the typesetting information, determines a text corresponding to the position, edits the determined text according to the edited content contained in the interactive request, and returns the edited result as an execution result to the sub-book client. This completes the editing of the sub-book by the user, and the selected content can be edited into the above-mentioned edited content. The above editing results may be paragraph level, page level, and even whole sub-book level.
Similarly, in order to ensure security and copyright protection, the sub-book client can perform the interaction only in the case of login, that is, the server only responds to the interaction request of the sub-book client in the login state, and sends the execution result to the sub-book client. Some limiting strategies may also be added on the basis, for example, the following strategies may be included but not limited:
strategy 1, the server records and limits the content quantity continuously requested by the sub-book client, for example, when the number of continuous pages involved in the interaction request of a certain sub-book client exceeds a set value, the interaction request of the sub-book client is refused to be responded.
And 2, the server records and limits the time interval of requesting the content by the sub-book client, for example, when a certain sub-book client sends the interactive request rapidly and frequently, if the time interval of sending the interactive request is smaller than a preset threshold value, the server refuses to respond to the interactive request of the sub-book client.
And 3, the server records and limits the total content number requested by the sub-book client, for example, when the total page number of the sub-book content related to the interactive request logged in by a certain sub-book client exceeds a set value, the interactive request of the sub-book client is refused to be responded.
The interactive request comprises a user id, and the record in the server and the implementation of the strategy are realized based on the user id.
In the above embodiment, the transmission between the server where the parent book source code is located and the child book client may adopt an encryption protocol, for example, ssl (secure socket layer) encryption protocol may be adopted. The method can effectively solve the authentication problem of important files, for example, a source file of a government document is used as a code of a parent book source and is placed on a server, and then a mode of generating a child book is adopted and is transmitted through ssl strong encryption, so that the reading problem is solved and the authentication of the document is ensured.
The above is a detailed description of the method provided by the present invention, and the following is a detailed description of the apparatus provided by the present invention through examples two and three.
Example II,
Fig. 2 is a structural diagram of an electronic document generating apparatus according to a second embodiment of the present invention, where the apparatus is disposed at a server side, and as shown in fig. 2, the apparatus includes: a mother book acquisition unit 01, a typesetting storage unit 02 and a sub-book interaction unit 03.
The parent book acquisition unit 01 is used for acquiring and storing a parent book source code. Specifically, the manner in which the parent book obtaining unit 01 obtains the parent book source code may adopt, but is not limited to, the following manners:
in the first mode, the parent book acquiring unit 01 acquires a parent book source code in a specified format provided by a copyright owner.
In the second mode, the parent book acquiring unit 01 acquires the parent book source code in the specified format, and the search engine aggregates the search results and converts the aggregated search results into the search result.
The specified format can be a structured text format such as BDF, HTML, XML or tagged txt format. The parent book source code has a unique number, the invention does not limit the specific numbering algorithm, any numbering algorithm can be adopted as long as uniqueness and security are ensured, for example, the numbering algorithm can be a secure hash algorithm for document contents, and the first 12 characters are extracted as the number.
In addition, when the parent book acquisition unit 01 stores the parent book source code, a fingerprint can be generated for each parent book source code, and the fingerprint can be used for content deduplication on one hand and can also be used for rapid anti-plagiarism on the other hand.
The layout storage unit 02 is used for performing layout on the source code of the mother book to generate the sub-book which does not support the layout rearrangement format, and storing the layout information of the sub-book. For the generated sub-book, in order to ensure the security of copyright protection, a format that does not support layout rearrangement, preferably a PDF format, is adopted, and the PDF format has characteristics of compatibility with all systems, what you see is what you get, tamper resistance, and the like, and as long as a format having similar characteristics can be adopted, for example, the XPS format can also be adopted.
Specifically, the layout storage unit 02 may adopt one or a combination of the following two forms when performing layout:
and in the first mode, the original book source codes are typeset in advance according to the type of the commonly used terminal screen, and the sub-books which are suitable for the type of the commonly used terminal screen are respectively generated. For example, currently, the commonly used terminal screens are 4 inches and 10 inches, the sub-book clients mounted on the terminal screens are also generally adapted to 4 inches and 10 inches, and then the parent book source codes are respectively typeset for the terminal screen types of 4 inches and 10 inches at the server end, so as to respectively generate a sub-book adapted to the terminal screen type of 4 inches and a sub-book adapted to the terminal screen type of 10 inches. The terminal screen type can be screen size, screen resolution and the like, and different sub-books can be further generated by combining different word sizes when typesetting. Although the same parent book source code corresponds to the child books adapted to different terminal screen types, the number and the book name of the parent book source code are unique, so that the reading request and the response of the interactive request in the following steps can be conveniently realized.
And secondly, responding to the reading request of the sub-book client, and typesetting the source code of the main book according to the screen type of the terminal where the sub-book client is located. This is the case where the typesetting of the parent book source code is triggered based on the request. When a reading request of a sub-book client for a certain parent book source code is received, if a sub-book which is typeset in a way of being suitable for the sub-book client is not stored at present (namely the terminal screen type of the sub-book client is suitable), typesetting the parent book source code according to the terminal screen type of the sub-book client, and generating a sub-book which is typeset in a way of being suitable for the sub-book client; and if the sub-book which is typeset according to the sub-book client side is stored, the sub-book is not generated for the sub-book client side.
When the two modes are combined, for example, typesetting is performed on the original book source codes according to the commonly used terminal screen types, and sub-books which are suitable for the commonly used terminal screen types are respectively generated; and for the unusual terminal screen types, triggering the typesetting of the source codes of the mother book when receiving the reading request of the sub-book client of the type, and generating the sub-book which is suitable for the terminal screen type of the sub-book client.
The typesetting technology adopted by the embodiment of the invention can be based on a xelex typesetting technology, or a square typesetting technology, or an indesingen typesetting technology of adobe corporation, and the like.
The sub-book interaction unit 03 is used for sending the sub-book to a sub-book client side suitable for the typesetting of the sub-book. Here, the sub-book interaction unit 03 may send the sub-book in an active push manner, for example, actively push the sub-book to a corresponding sub-book client in a subscription-based manner. Preferably, the sub-book composed in accordance with the sub-book client may also be transmitted based on the reading request of the sub-book client, in this case, when the sub-book interaction unit 03 receives the reading request of the sub-book client, the type of composition in accordance with the sub-book client is determined, and the content requested by the sub-book client in the sub-book of the type of composition is transmitted to the sub-book client. The content requested by the sub-book client may include: the server can determine the corresponding sub-book according to the requested e-book information, and can also include the requested page number, the reading request for the e-book is usually based on the page number, the server searches the requested page number from the corresponding sub-book, and sends the content of the page number to the sub-book client. Of course, the server may send the corresponding sub-book to the sub-book client entirely based on the entire electronic book. In addition, the reading request comprises the sub-book client information, and the server can determine the typesetting type suitable for the sub-book client information, so that the sub-book content requested by the sub-book client in the typesetting type is sent.
The sub-books in the invention have the same updating problem as other apps, if the parent book source code is updated, the typesetting storage unit 02 carries out typesetting again aiming at the updated parent book source code to generate the sub-book with the new version, and the sub-book interaction unit 03 sends the sub-book with the new version to the sub-book client.
If the version of the source code of the parent book is not updated but there is content update, for example, only some wrongly written words are modified, or a new page is added or a page is deleted, etc., the layout storage unit 02 determines the corresponding position of the updated content in the child book according to the layout information of the child book, updates the corresponding content in the child book, and the child book interaction unit 03 sends the updated content in the child book to the child book client. In this case, the content sent to the sub-book client only relates to the updated content, usually only at the page level, which saves traffic loss for the sub-book client significantly.
Based on the mechanism of the parent book and the child book, the popularization information can be embedded in the source code of the parent book, so that the popularization information can be cooperatively displayed on the child books on the client sides of the child books, and the popularization information can be timely updated through the updating mechanism.
When the sub-book interaction unit 03 sends the sub-book to the sub-book client, the generated sub-book (for example, the sub-book in the PDF format) that does not support the layout format may be sent to the sub-book client, which is suitable for a case where the copyright protection requirement is not so high, and the content in the PDF format may be edited and copied. If a higher copyright protection level is required, the generated sub-book which does not support the layout format can be converted into a picture page by page, for example, the PDF format is converted into a picture in a format such as PNG or DJVU, and then the picture is sent to the sub-book client.
The layout information of the source code of the parent book stored in the layout storage unit 02 to the child book, by which the source code of the parent book can be returned from the child book, can be regarded as a reverse reference syntax file. The typesetting information records the corresponding positions of all contents (including characters, pictures, hyperlinks and the like) of the sub-book in the source code of the main book, and the server can acquire the corresponding positions of the contents in the sub-book in the source code of the main book according to the typesetting information. Based on the typesetting information, the interactive function of the electronic book can be realized, for example, the functions of editing, copying, searching and the like can be realized through the sub-book client. In order to implement the above-mentioned interactive function, the apparatus further comprises: the interactive execution unit 05.
The sub-book interaction unit 03 receives the interaction request of the sub-book client, the interaction execution unit 05 executes the interaction request according to the typesetting information, and then the sub-book interaction unit 03 returns the execution result of the interaction execution unit 05 to the sub-book client.
The sending of the interaction request by the sub-book client is triggered by a user action, for example, when the user has a copy request, a retrieval request or an editing request, a part of content is selected on the sub-book, and a function option is clicked (including but not limited to clicking a function option provided on the sub-book client, or clicking a function option displayed on the function option after clicking a right mouse button, or clicking a function option by means of keyboard input, etc.). The sub-book client then sends an interaction request containing the action type and the sub-book content (i.e. the content selected by the user) to which the interaction request is directed. The sub-book content for which the interactive request is directed may include a sub-book number, a sub-book version, and a position (page number, offset, or coordinate) of the user-selected content in the sub-book. Besides, the interactive request may also include information such as encryption mode, user id, etc.
After the sub-book interaction unit 03 receives the interaction request of the sub-book client, the interaction execution unit 05 specifically determines the position of the sub-book content in the source code of the original book, to which the interaction request is directed, according to the layout information, and then executes the processing corresponding to the action type included in the interaction request on the source code of the original book according to the determined position.
When the action type included in the interactive request is retrieval, the interactive execution unit 05 first determines the position of the content of the sub-book targeted by the interactive request in the source code of the parent book according to the layout information, finds the text corresponding to the position, retrieves the position where the text appears in the source code of the parent book, converts the retrieved position into the position of the sub-book as an execution result according to the layout information, and the sub-book interaction unit 03 returns the execution result to the sub-book client.
When the action type included in the interactive request is copying, the interactive execution unit 05 determines the position of the sub-book content in the source code of the parent book, which is aimed at by the interactive request, according to the typesetting information, determines the text corresponding to the position, uses the text as an execution result, and sends the execution result to the sub-book client by the sub-book interaction unit 03, so that the sub-book client stores the execution result in the clipboard, and thus the content in the sub-book is copied, and the user can copy the content from the clipboard to other places.
When the action type included in the interactive request is editing, the interactive execution unit 05 determines the position of the sub-book content in the source code of the mother book, to which the interactive request is directed, according to the layout information, determines the text corresponding to the position, edits the determined text according to the editing content included in the interactive request, takes the editing result as an execution result, and the sub-book interaction unit 03 returns the execution result to the sub-book client. This completes the editing of the sub-book by the user, and the selected content can be edited into the above-mentioned edited content. The above editing results may be paragraph level, page level, and even whole sub-book level.
In order to ensure the safety and copyright protection, the sub-book client can acquire the sub-book and perform the interaction only under the condition that the user logs in, namely, the server only responds to the reading request and the interaction request of the sub-book client in the login state. Some limiting strategies can be added on the basis, namely the device further comprises: and the access control unit 04 is used for recording and limiting the number of contents continuously requested by the sub-book client, or recording and limiting the time interval of the contents requested by the sub-book client, or recording and limiting the total number of contents requested by the sub-book client by the server.
The above strategies are all to prevent malicious users from obtaining a large amount of content or frequently obtaining content for piracy, the reading request and the interaction request contain user id, and the recording in the server and the implementation of the above strategies are implemented based on the user id. The above strategies are only a few examples of the embodiments of the present invention, and other strategies for preventing malicious users that can be thought of by those skilled in the art may also be adopted, which is not exhaustive here.
Example III,
Fig. 3 is a structural diagram of a sub-book client according to a third embodiment of the present invention, and as shown in fig. 3, the sub-book client includes: a reading request unit 11 and a sub-book receiving unit 12.
The reading request unit 11 is configured to send a reading request to the server. The reading request comprises the content requested by the sub-book client and the sub-book client information. The content requested by the sub-book client may include: the server can determine the corresponding sub-book according to the requested e-book information, and can also include the requested page number, the reading request for the e-book is usually based on the page number, the server searches the requested page number from the corresponding sub-book, and sends the content of the page number to the sub-book client. Of course, the server may send the corresponding sub-book to the sub-book client entirely based on the entire electronic book. In addition, the reading request comprises the sub-book client information, and the server can determine the typesetting type suitable for the sub-book client information, so that the sub-book content requested by the sub-book client in the typesetting type is sent.
The sub-book receiving unit 12 is used for receiving the sub-book which is sent by the server and is typeset according to the sub-book client.
In order to realize the interaction function with the server where the parent book source code is located, the child book client further comprises: an interaction request unit 13 and a result receiving unit 14.
And the interaction request unit 13 is used for the server to send an interaction request. The interaction request is triggered by a user action, for example, when a user has a copy request, a search request, an edit request, or the like, a part of content is selected on the sub-book, and a function option is clicked (including but not limited to clicking a function option provided on a client of the sub-book, or clicking a function option displayed on the function option after clicking a right mouse button, or clicking the function option by means of a keyboard input, or the like). The sub-book client then sends an interaction request containing the action type and the sub-book content (i.e. the content selected by the user) to which the interaction request is directed. The sub-book content for which the interactive request is directed may include a sub-book number, a sub-book version, and a position (page number, offset, or coordinate) of the user-selected content in the sub-book. Besides, the interactive request may also include information such as encryption mode, user id, etc.
And the result receiving unit 14 is used for receiving the execution result sent by the server, wherein the execution result is obtained by the server according to the typesetting information of the typesetting of the parent book source code into the sub-book.
When the interactive request comprises the action type of retrieval, the execution result is the position of the text requested to be retrieved by the sub-book client in the source code of the parent book.
When the action type included in the interactive request is copy, the execution result is a text requested to be copied by the sub-book client, and the result receiving unit is further used for storing the received execution result to the clipboard.
When the action type contained in the interactive request is editing, the execution result is the result of editing requested by the sub-book client.
In the embodiments provided in the present invention, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described device embodiments are merely illustrative, and for example, the division of the units is only one logical functional division, and other divisions may be realized in practice. In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
The integrated unit implemented in the form of a software functional unit may be stored in a computer readable storage medium. The software functional unit is stored in a storage medium and includes several instructions to enable a computer device (which may be a personal computer, a server, or a network device) or a processor (processor) to execute some steps of the methods according to the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
As can be seen from the above description, the method, apparatus and client provided by the present invention have the following advantages:
1) the invention stores the source code of the primary book at the server end and typesets the source code of the primary book to generate the sub-books which do not support the layout rearrangement format, and the source code of the primary book is used as the original format, thereby being suitable for the sub-books of different terminal screens to be used as the target format and solving the display problem of different terminal screens.
2) The sub-book does not support layout rearrangement format and simultaneously ensures the safety problem of copyright protection.
3) In view of the fact that the unique parent book source code corresponds to various child books which are suitable for different terminal screens, the child book clients based on the different terminal screens can normally display the content of the same parent book source code, and can realize interactive functions such as copying, retrieving, editing and the like based on the same parent book source code.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (23)
1. A method of generating an electronic document, the method comprising:
s1, the server acquires and stores the source code of the mother book;
s2, typesetting the source code of the mother book to generate a sub-book which does not support the layout format, and storing the typesetting information of the sub-book, wherein the typesetting information records the corresponding positions of all the contents of the sub-book in the source code of the mother book;
s3, sending the sub-book to a sub-book client end suitable for the typesetting of the sub-book,
the step S1 specifically includes:
a server acquires a parent book source code in a specified format provided by a copyright party; or,
the server obtains a parent book source code of a specified format, and the search engine aggregates the search results and converts the search results into the parent book source code.
2. The method according to claim 1, further comprising, after the step S3:
and S4, if the interactive request of the sub-book client is received, returning the execution result corresponding to the interactive request to the sub-book client according to the typesetting information.
3. The method of claim 1, wherein the specified format comprises the following structured text format: BDF, HTML, XML, or tagged txt format.
4. The method of claim 1, wherein the non-support for the reformatting format comprises: PDF or XPS.
5. The method according to claim 1, wherein the step S2 includes one or a combination of the following two forms:
the method comprises the steps that in a first mode, the original book source codes are typeset in advance according to the type of a commonly used terminal screen, and sub-books which are suitable for the type of the commonly used terminal screen are respectively generated;
and secondly, responding to the reading request of the sub-book client, and typesetting the source code of the main book according to the screen type of the terminal where the sub-book client is located.
6. The method according to claim 1, characterized in that if the parent book source code is updated in version, the updated parent book source code is typeset again to generate a new version of the sub-book, and the new version of the sub-book is sent to the sub-book client; or,
and if the parent book source code is not subjected to version updating but has content updating, determining the corresponding position of the updated content in the sub-book according to the typesetting information of the sub-book, updating the corresponding content in the sub-book, and sending the updated content in the sub-book to the sub-book client.
7. The method according to claim 2, wherein returning the execution result corresponding to the interactive request to the sub-book client according to the layout information comprises:
s41, the server determines the position of the sub-book content aimed at by the interaction request in the source code of the mother book according to the typesetting information;
s42, the server executes processing corresponding to the action type contained in the interaction request on the original book source code according to the position determined in the step S41;
and S43, returning the execution result to the sub-book client.
8. The method according to claim 7, wherein when the interaction request includes an action type of retrieval, the step S42 is: the server determines a text corresponding to the position determined in the step S41, retrieves the position where the text appears from the source code of the parent book, and converts the retrieved position into the position of the child book as an execution result according to the layout information;
when the action type included in the interactive request is replication, the step S42 is: the server determines a text corresponding to the position determined in the step S41, and sends the determined text to the sub-book client for storage to a clipboard;
when the action type included in the interaction request is edit, the step S42 is: the server determines the text corresponding to the position determined in step S41, edits the determined text according to the editing content included in the interactive request, and takes the editing result as an execution result.
9. The method according to claim 1, wherein the step S3 specifically includes:
when a reading request of a sub-book client is received, determining a typesetting type suitable for the sub-book client, and sending the content requested by the sub-book client in the sub-book of the typesetting type to the sub-book client.
10. The method according to claim 2 or 9, wherein the server records and limits the amount of content continuously requested by the sub-book client; or,
the server records and limits the time interval of requesting the content by the sub-book client; or,
the server records and limits the total amount of content requested by the sub-book client.
11. An apparatus for generating an electronic document, the apparatus being provided on a server side, the apparatus comprising:
the parent book acquisition unit is used for acquiring and storing a parent book source code;
the typesetting storage unit is used for typesetting the source code of the mother book to generate a sub-book which does not support the layout rearrangement format and storing the typesetting information of the sub-book, and the typesetting information records the corresponding positions of all the contents of the sub-book in the source code of the mother book;
a sub-book interaction unit used for sending the sub-book to a sub-book client end which is suitable for the typesetting of the sub-book,
the primary book acquiring unit acquires a primary book source code in a specified format provided by a copyright side; or, the acquisition search engine aggregates the search results and converts the search results into the parent book source code in the specified format.
12. The apparatus of claim 11, further comprising: an interactive execution unit;
the sub-book interaction unit is also used for receiving an interaction request of the sub-book client and returning an execution result of the interaction execution unit to the sub-book client;
and the interactive execution unit is used for executing the interactive request according to the typesetting information.
13. The apparatus of claim 11, wherein the specified format comprises the following structured text format: BDF, HTML, XML, or tagged txt format.
14. The apparatus of claim 11, wherein the non-support for the reformatting comprises: PDF or XPS.
15. The apparatus according to claim 11, wherein the layout storage unit takes one or a combination of two forms when performing the layout:
the method comprises the steps that in a first mode, the original book source codes are typeset in advance according to the type of a commonly used terminal screen, and sub-books which are suitable for the type of the commonly used terminal screen are respectively generated;
and secondly, responding to the reading request of the sub-book client, and typesetting the source code of the main book according to the screen type of the terminal where the sub-book client is located.
16. The apparatus according to claim 11, wherein if the version of the parent book source code is updated, the typesetting storage unit performs typesetting again on the updated version of the parent book source code to generate a new version of the child book, and the child book interaction unit sends the new version of the child book to the child book client; or,
if the parent book source code is not subjected to version updating but has content updating, the typesetting storage unit determines the corresponding position of the updated content in the child book according to the typesetting information of the child book, updates the corresponding content in the child book, and the child book interaction unit sends the updated content in the child book to the child book client.
17. The apparatus according to claim 12, wherein the interaction executing unit specifically determines, according to the layout information, a position of the content of the sub-book, which is targeted by the interaction request, in the source code of the original book, and then executes, according to the determined position, processing corresponding to the action type included in the interaction request on the source code of the original book.
18. The apparatus according to claim 17, wherein when the interaction request includes an action type of retrieval, the interaction execution unit determines a text corresponding to the determined position, retrieves a position where the text appears in a source code of a parent book, and converts the retrieved position into a position of a child book as an execution result according to the layout information;
when the action type contained in the interaction request is copying, the interaction execution unit determines a text corresponding to the determined position, and sends the determined text to the sub-book client for storage to a clipboard;
and when the action type contained in the interactive request is editing, the interactive execution unit determines the text corresponding to the determined position, edits the determined text according to the editing content contained in the interactive request, and takes the editing result as an execution result.
19. The apparatus according to claim 11, wherein the sub-book interaction unit determines a layout type corresponding to the sub-book client when receiving a reading request from the sub-book client, and sends the content requested by the sub-book client in the sub-book of the layout type to the sub-book client.
20. The apparatus of claim 12 or 19, further comprising: and the access control unit is used for recording and limiting the quantity of the contents continuously requested by the sub-book client, or recording and limiting the time interval of the contents requested by the sub-book client, or recording and limiting the total quantity of the contents requested by the sub-book client by the server.
21. A sub-book client, comprising:
a reading request unit configured to send a reading request to the server according to claim 11;
and the sub-book receiving unit is used for receiving a sub-book which is sent by the server and is typeset correspondingly with the sub-book client, wherein the sub-book is generated after typesetting the source code of the parent book requested by the reading request and does not support the layout rearrangement format.
22. The sub-book client of claim 21, wherein the sub-book client further comprises:
the interactive request unit is used for sending an interactive request to the server;
and the result receiving unit is used for receiving an execution result sent by the server, and the execution result is obtained by typesetting the server into the typesetting information of the sub-book according to the source code of the parent book.
23. The sub-book client of claim 22, wherein when the interaction request comprises an action type of retrieval, the execution result is a position where the text requested to be retrieved by the sub-book client appears in the source code of the parent book;
when the action type included in the interaction request is copying, the execution result is a text requested to be copied by the sub-book client, and the result receiving unit is further used for storing the received execution result to the clipboard;
and when the action type contained in the interaction request is editing, the execution result is the result of the editing request of the sub-book client.
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| CN103970799A (en) | 2014-08-06 |
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