CN109446823A - Preview file method, apparatus, electronic equipment and readable storage medium storing program for executing - Google Patents
Preview file method, apparatus, electronic equipment and readable storage medium storing program for executing Download PDFInfo
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- CN109446823A CN109446823A CN201811161022.0A CN201811161022A CN109446823A CN 109446823 A CN109446823 A CN 109446823A CN 201811161022 A CN201811161022 A CN 201811161022A CN 109446823 A CN109446823 A CN 109446823A
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- preview
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/60—Protecting data
- G06F21/62—Protecting access to data via a platform, e.g. using keys or access control rules
- G06F21/6218—Protecting access to data via a platform, e.g. using keys or access control rules to a system of files or objects, e.g. local or distributed file system or database
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/60—Protecting data
- G06F21/604—Tools and structures for managing or administering access control systems
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2221/00—Indexing scheme relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F2221/21—Indexing scheme relating to G06F21/00 and subgroups addressing additional information or applications relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F2221/2141—Access rights, e.g. capability lists, access control lists, access tables, access matrices
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2221/00—Indexing scheme relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F2221/21—Indexing scheme relating to G06F21/00 and subgroups addressing additional information or applications relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F2221/2151—Time stamp
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- Computer Security & Cryptography (AREA)
- Bioethics (AREA)
- General Health & Medical Sciences (AREA)
- Computer Hardware Design (AREA)
- Health & Medical Sciences (AREA)
- Software Systems (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Databases & Information Systems (AREA)
- Automation & Control Theory (AREA)
- Information Transfer Between Computers (AREA)
Abstract
This disclosure relates to preview file method, apparatus, electronic equipment and readable storage medium storing program for executing, method includes the following steps: receiving preview file request；It is requested according to preview file, obtains check information corresponding with preview file request；Judge whether check information matches with default check information；If so, according to the corresponding file content of preview file request, and file content is returned into client；If it is not, then terminating operation.Implement the disclosure, preview link can be hidden to user, ordinary user is not directly visible the link of preview, avoids preview service address from being directly exposed to outer, and prevention web crawlers etc. is directly obtained preview address.By being verified to user right, the safety of document is protected, prevents document from causing information leakage by random preview.
Description
Technical field
This disclosure relates to previewing file field, more specifically to a kind of preview file method, apparatus, electronic equipment
And readable storage medium storing program for executing.
Background technique
Current some softwares provide preview service to link, i.e., do not click open link in the case where it is seen that
Link corresponding partial content.Existing preview service scheme, after the link for receiving other users sharing, user puts mouse
When in document links can directly preview file content.
Existing preview scheme there are some potential safety problems, unauthorized user can directly preview to file content, or
Person, which starts to have permission the user that later permission is cancelled, still may browse through the content of file, in addition, shared file when
Effect property not can be effectively controlled, and these problems will lead to the risk that file content has leakage, and classified papers are by unintended user
Reading, in turn results in the file information and is leaked, the safety of file cannot ensure.
Summary of the invention
Disclosure technical problems to be solved are, in view of the above drawbacks of the prior art, provide a kind of preview file side
Method, device, electronic equipment and readable storage medium storing program for executing.
The disclosure solves technical solution used by its technical problem: constructing a kind of preview file method, including following
Step:
Receive preview file request；
It is requested according to the preview file, obtains check information corresponding with preview file request；
Judge whether the check information matches with default check information；
If so, according to the corresponding file content of preview file request, and the file content is returned to
Client；
If it is not, then terminating operation.
Optionally, before reception preview file request further include:
Receive the download link request of preview file；
It is requested according to the download link, obtains the identity information of client；
Judge whether the identity information is legal；
If legal, it obtains and requests the download link of corresponding preview file with the download link, and by the downloading chain
It connects and returns to client；The download link is the index that the user of client obtains the preview link of preview file.
Optionally, it is described the download link is returned into client after further include:
Receive the preview link request of preview file；
It is requested according to the preview link, determines preview link corresponding with preview link request, and will be described pre-
Link of looking at returns to client；
Wherein, the preview link carries check information corresponding with preview link request, and described and preview
The corresponding check information of linking request is the default check information.
Optionally, the method also includes:
The check information is stored in local storage.
Optionally, described to judge whether the check information matches with default checking information and include:
It is searched in local storage according to the check information；
Judge to whether there is and the consistent default check information of the checking information in the local storage.
Optionally, described if so, described according to the corresponding preview file of preview file request, and will be described
Preview file returns to client
It is requested according to the preview file, corresponding file content is obtained from preview service module；
The preview file is returned into client, to be rendered by client to file content and show client
End subscriber.
Optionally, the check information includes timestamp and key information.
The disclosure also provides a kind of preview file device, comprising:
Receiving unit, for receiving preview file request；
Acquiring unit obtains verification letter corresponding with preview file request for requesting according to the preview file
Breath；
Judging unit, for judging whether the check information matches with default check information；
Execution unit obtains if matching for the check information with default check information according to preview file request
Corresponding file content is taken, and the file content is returned into client；If it is not, then terminating operation.
The disclosure also provides a kind of electronic equipment, including processor, and the processor is used to executing to be stored in memory
The step of method as described above is realized when computer program.
The disclosure also provides a kind of readable storage medium storing program for executing, is stored thereon with computer program, and the computer program is located
The step of reason device realizes method as described above when executing.
Implement preview file method, apparatus, electronic equipment and the readable storage medium storing program for executing of the disclosure, has below beneficial to effect
Fruit: implement the disclosure, preview link can be hidden to user, ordinary user is not directly visible the link of preview, avoids preview
Outside address of service is directly exposed to, prevention web crawlers etc. is directly obtained preview address.By being verified to user right, protect
The safety of document prevents document from causing information leakage by random preview.
Detailed description of the invention
The disclosure is described further below in conjunction with accompanying drawings and embodiments, in attached drawing:
Fig. 1 is a kind of flow chart for preview file method that one embodiment of the disclosure provides；
Fig. 2 is a kind of flow chart for preview file method that another embodiment of the disclosure provides；
Fig. 3 is a kind of flow chart for preview file method that another embodiment of the disclosure provides；
Fig. 4 is a kind of structural schematic diagram of preview file device of the disclosure；
Fig. 5 is the structural schematic diagram of disclosure a kind of electronic equipment.
Specific embodiment
In order to which the technical features, objects and effects to the disclosure are more clearly understood, now compare attached drawing and be described in detail
The specific embodiment of the disclosure.
In order to solve the problems, such as that existing file preview exists, present disclose provides a kind of safe preview file methods, should
Method is applied to the preview in line file.
Referring to Fig. 1, for a kind of flow chart for preview file method that one embodiment of the disclosure provides.
As shown in Figure 1, the preview file method the following steps are included:
Step S11, preview file request is received.
In the step, the user of client needs first to choose the file needed to preview to when line file carries out preview
Corresponding preview link.Client determines the preview file request of user according to the corresponding link of preview file that user chooses
And the file of preview required for user, meanwhile, client and remote server on-line joining process are asked in the preview file for determining user
After asking, preview file request is sent to remote server.
Here, the preview link of file can be highlighted on the browser of client by different forms,
And then the user of client is facilitated to select.Wherein, the preview link of file specifically can be shown in client by icon
User can such as be indicated by highlighting the written form of picture, highlighted number or addition background colour.In other words, in client
The page on, user can only see picture, number or the text etc. for representing previewing file link, be not directly visible to
The preview link of the file of preview can not directly operate the preview link of file.Wherein, the preview link of file can
With corresponding one or more files, or the file of one or more different-formats can be corresponded to, for example, it may be pdf format
File, file, the file of ppt format of docs format etc..
In addition, in the embodiments of the present disclosure, user's selection of client to preview file form can there are many.Example
Such as, it can be chosen (real here to the corresponding preview link of preview file by the location information of the mouse of acquisition client user
When operating, for a user, user institute is it is seen that choose the corresponding icon of preview link).In the acquisition modes, for
Obtaining for the location information of mouse can be obtained by way of clicking to the corresponding icon of preview file, can also be by by mouse
Target cursor placement is obtained to the mode on the corresponding icon of preview file.This mode can be by clicking or putting mouse
It is placed in corresponding icon, chooses an icon or multiple unconnected icons, to determine a preview chain corresponding with icon
It connects or multiple discontinuous preview links.
Alternatively, can be chosen by the displacement information of the mouse of acquisition client user to the corresponding preview of preview file
Link (here when real-time operation, for a user, user institute is it is seen that choose the corresponding icon of preview link).By this
Mode, the foundation to preview file that the mobile message that mouse is moved through is selected as user, and user institute is determined with this
The icon chosen.Wherein, which can be by that will make key be in the shape that is pressed mouse after initial position clicks key
State, meanwhile, drag mouse, to choose icon to be selected, the icon the chosen icon to be selected as user.
Alternatively, can be chosen by the location information of the touch operation of client user to preview text by obtaining
(here when real-time operation, for a user, user institute is it is seen that choose the corresponding figure of preview link for the corresponding preview link of part
Mark).In the acquisition modes, the location information of the touch operation of user can be clicked by user's hand or felt pen
Mode to the corresponding icon of preview file obtains, can also be corresponding to preview file by being placed on hand or felt pen
Mode on icon obtains.Wherein, hand or felt pen are placed on to get touching on the corresponding icon of preview file
The principle for touching the location information of operation can be obtained by the principle of light sensation, i.e., when hand or felt pen are placed on to preview file
When on corresponding icon, since hand or felt pen block light, the light sensitive component at icon can sense the information,
To determine the position of touch operation according to the information that the light sensitive component is sensed.
Alternatively, can be chosen corresponding to preview file by the displacement information of the touch operation of acquisition client user
Preview link (here when real-time operation, for a user, user institute is it is seen that choose the corresponding icon of preview link).At this
In acquisition modes, the location information of the touch operation of user can be touched by user's hand or felt pen in initial position
It touches or presses and continuous moving streaks corresponding icon, and then choose icon, the acquisition principle of this mode can pass through light sensation
Principle obtain, i.e., when perhaps felt pen be placed on when on the corresponding icon of preview file since hand or felt pen are to light
Line blocks, and the light sensitive component at icon can sense the information, thus the information sensed according to corresponding light sensitive component
Variation, determine displacement information.
What needs to be explained here is that in this step, determining that client user needs the corresponding preview chain of the file of preview
After connecing, client sends preview file request, preview file request to remote server according to identified preview link
Carry user and need the corresponding preview link of the file of preview, meanwhile, preview link carry identity user whether have it is pre-
Look at the check information of permission.
Step S12, it is requested according to the preview file, obtains check information corresponding with preview file request.
Here, check information corresponding with preview file request refers to that the entrained sample of preview file request tests information.
Specifically, being requested according to the received preview file of institute true after receiving the preview file request of client transmission
Determine the corresponding preview link of file of preview needed for client user, and from preview link obtain identity user whether have it is pre-
Look at the check information of permission.Optionally, which can preset, and can also execute each time in advance in client user
The preceding random generation of operation of looking at.Wherein, which includes key information and timestamp.
S13, judge whether the check information matches with default check information.
Specifically, judge acquired check information from the request of received preview file whether with default check information
With can execute in the following manner:
Remote server is searched in local storage according to acquired check information, judges local storage
In with the presence or absence of with the acquired consistent default check information of check information, if so, can determine that with preview rights.Its
In, default check information can generate at random, and check information includes timestamp, when being more than the set time,
The default check information being automatically deleted in memory, makes the timeliness of file be effectively controlled.
S14, if so, according to the corresponding file content of preview file request, and the file content is returned
Back to client.
Specifically, preview file request carries user and needs the corresponding preview link of the file of preview, in step s 13
After determining that user has preview rights, entrained preview link can be requested to obtain in preview file according to preview file
Hold, and the content of acquired preview file is returned into client.
When specific operation, remote server is by check information entrained in the determining preview file request of verification and in advance
If check information matches, according to the preview link in preview file request, obtained from preview service module corresponding
File content, and acquired file content is returned into client, file content is rendered and shown by client
To the user of client, for user's preview documents content.
S15, if it is not, then terminating operation.
Here, obstructed out-of-date when verifying, it may be determined that user does not have preview rights, and then no longer executes subsequent operation, directly
Connect termination operation.
The disclosure replaces preview link by way of with icon, may be implemented to hide preview link, ordinary user
It is not directly visible preview link, avoids preview service chained address from being directly exposed to outer, prevention web crawlers etc. directly acquires
To preview address.And ensure that the timeliness of file by timeliness and Authority Verification, while also assuring the safety of file,
Prevent file from causing information leakage by random preview.
Referring to fig. 2, a kind of flow chart of the preview file method provided for another embodiment of the disclosure.
The present embodiment can first carry out following steps before the step S11 of previous embodiment starts execution:
Step S21, the download link request of preview file is received.
Specifically, the user in client needs to need to obtain required preview file to when line file carries out preview
Preview link, and before obtaining preview file link, need first to determine the download link of file, and client is according to being chosen
Download link sends download link request to remote server.It is to be appreciated that in this step, client user's filesselected
Mode and the previous embodiment of download link to obtain the mode of preview link of file identical, and to the user of client and
Speech, be presented to the user of client is only the icon for having selected the download link and preview link that indicate file.Work as client
When user chooses corresponding icon, client user is first to send a download link request to remote server, to obtain
Need the download link of the file of preview.Wherein, which carries the identity information of client user, such as user name, visitor
IP address, the MAC Address at family end etc. are used to identify the identity information of client user.
Step S22, it is requested according to the download link, obtains the identity information of client.
Specifically, after remote server receives the download link request that client sends over, according to the download link
Entrained information extracts the identity information of client.
Step S23, judge whether the identity information is legal.
Whether the acquired identity information of judgement is legal, specifically: judge whether acquired identity information is registered
Identity information or whether be authorization identity information.Specific judgment mode can be with are as follows: according to acquired identity information,
Searched in the list of identities prestored, whether see has the identity information in the list of identities prestored, if so, can determine that for
Legal identity, if it is not, being then illegal identity.
Step S24, it if legal, obtains and requests the download link of corresponding preview file with the download link, and by institute
It states download link and returns to client.
The download link that remote server returns to client is effective download link, which is client
User obtains the index of the preview link of preview file.
It is to be appreciated that if it is illegal, it is determined that the user is illegal user or is not authorized user, therefore, at this point,
Operation can be directly terminated, not to client return information.
By first verifying, can mention to the identity of user before the preview link for sending preview file to client
High previewing file safety further hides preview link to user, and ordinary user's (illegal user or unauthorized user) cannot
Preview link is directly obtained, avoids preview service address from being directly exposed to outer, is stolen by illegal or malicious user.
Further, can also include: after step S24
Step S25, the preview link request of preview file is received.
It is to be appreciated that synchronizing after client receives the effective download link that remote server returns to long-range
Server sends the preview link request of preview file, i.e., the request for obtaining preview link is sent to remote server, wherein should
Preview link request carries documentary download link.
Step S26, it is requested according to the preview link, determines preview link corresponding with preview link request, and
The preview link is returned into client.Wherein, the preview link carries school corresponding with preview link request
Information is tested, and the check information corresponding with preview link request is the default check information.
Specifically, the preview link requests the authorization check module being sent in remote server, authorization check module is connect
After receiving preview link request, the entrained download link of preview link request is extracted, and carry out to the download link
Encryption generates corresponding check information, and generates corresponding preview link, and preview link generated carries raw
At check information.Meanwhile check information generated is also stored in local storage by authorization check module, as default
Check information.
It is to be appreciated that check information is the check information for including timestamp and key, it is a random character string,
It is made of a string of random numbers and time.Key timeliness is imparted by the way that timestamp is arranged, when reaching the set time, from
It is dynamic to remove the check information, so that the available effective control of the timeliness of file, wherein the duration of timestamp can basis
Specific design requirement determines that the disclosure is not especially limited.
In the embodiment of the present disclosure, the preview link of file is hidden in the form of icon in client, and
Before the preview link for returning to file to client, index of the file download link as acquisition preview link, and base are first set
The identity information of client user is obtained in download link, while first the identity information of client user is verified, only
Download link is then sent to remote server by that just can send corresponding download link to client by authentication
Authorization check module is generated the pre- of check information corresponding with the download link and preview file by authorization check module at random
It lookes at link, please the check information is arranged and returns to client in preview link generated, then by preview link generated
End, while the check information generated at random being stored in local storage.When client is sent in advance to remote server again
Look at file request when (at this point, client is that the request preview documents content that preview link is sent based on the received is asked
Ask), which is sent to the authorization check module in remote server again, carries out permission again by authorization check module and tests
Card just obtains corresponding file content according to the received preview link of institute, then will be acquired if passing through from preview service module
File content return to client, if not passing through, terminate operation.It is realized through the above way to previewing file link
It hides, avoids preview service address from being directly exposed to outer, prevention web crawlers etc. directly acquires preview address, meanwhile, by right
The identity of user and the double verification of permission, further improve the safety of previewing file.
Referring to Fig. 3, for a kind of flow chart for preview file method that another embodiment of the disclosure provides.
As shown in figure 3, the preview file method of the embodiment includes step S31- step S40, wherein step S31- step
S36 is identical as the step S21- step S26 of embodiment two, the step S11- step of step S37- step S41 and embodiment one
S15, details are not described herein.In addition, carrying step S36 in the received preview file request of step S37 institute and returning to client
The preview link at end.
Referring to fig. 4, a kind of structural schematic diagram of the preview file device provided for the disclosure,
As shown in figure 4, the preview file device includes:
Receiving unit 301, for receiving preview file request.
Acquiring unit 302 obtains verification corresponding with preview file request for requesting according to the preview file
Information.
Judging unit 303, for judging whether the check information matches with default check information.
Optionally, which may include: searching module and correction verification module.Wherein, searching module is used for basis
Acquired check information, is searched in local storage.Correction verification module is for judging to whether there is in local storage
With the consistent default check information of the check information.It is to be appreciated that consistent with the check information when existing in local storage
Default check information, then can determine that the check information is matched with default check information；Conversely, if being searched in local storage
Less than (being not present) and the consistent default check information of the check information, then it can determine that the check information and default check information
It mismatches.
Execution unit 304 is requested if matching for the check information with default check information according to the preview file
Corresponding file content is obtained, and the file content is returned into client；If it is not, then terminating operation.
Optionally, the preview file device of the disclosure can also include:
First receiving module, the download link for receiving preview file are requested.
First determining module, for according to received preview file download link request, obtain the identity of client
Information.
Whether judgment module, the identity information for judging acquired client are legal.
Execution module when legal for the identity information in acquired client, obtains corresponding with download link request
Preview file download link, and the download link is returned into client.Wherein, which is that user obtains preview
The index of the preview link of file.
Further, the preview file device of the disclosure can also include:
Second receiving module, the preview link for receiving preview file are requested.
Second determining module, for being requested according to the received preview link of institute, determination is corresponding with preview link request
Preview link, and the preview link is returned into client.
Wherein, which carries check information corresponding with preview link request, and the check information is aforementioned
Default checking information.
Further, the preview file device of the disclosure can also include:
Local storage, for storing check information determined by the second determining module.
Below with reference to Fig. 5, it illustrates the structural representations for the electronic equipment 500 for being suitable for being used to realize the embodiment of the present disclosure
Figure.Electronic equipment in the embodiment of the present disclosure can include but is not limited to such as mobile phone, laptop, digital broadcasting and connect
Receive device, PDA (personal digital assistant), PAD (tablet computer), PMP (portable media player), car-mounted terminal (such as vehicle
Carry navigation terminal) etc. mobile terminal and such as number TV, desktop computer etc. fixed terminal.Electricity shown in Fig. 5
Sub- equipment is only an example, should not function to the embodiment of the present disclosure and use scope bring any restrictions.
As shown in figure 5, electronic equipment 500 may include processing unit (such as central processing unit, graphics processor etc.)
501, random access can be loaded into according to the program being stored in read-only memory (ROM) 502 or from storage device 508
Program in memory (RAM) 503 and execute various movements appropriate and processing.In RAM503, it is also stored with electronic equipment
Various programs and data needed for 500 operations.Processing unit 501, ROM 502 and RAM 503 pass through the phase each other of bus 504
Even.Input/output (I/O) interface 505 is also connected to bus 504.
In general, following device can connect to I/O interface 505: including such as touch screen, touch tablet, keyboard, mouse, taking the photograph
As the input unit 506 of head, microphone, accelerometer, gyroscope etc.；Including such as liquid crystal display (LCD), loudspeaker, vibration
The output device 507 of dynamic device etc.；Storage device 508 including such as tape, hard disk etc.；And communication device 509.Communication device
509, which can permit electronic equipment 500, is wirelessly or non-wirelessly communicated with other equipment to exchange data.Although Fig. 5 shows tool
There is the electronic equipment 500 of various devices, it should be understood that being not required for implementing or having all devices shown.It can be with
Alternatively implement or have more or fewer devices.
Particularly, in accordance with an embodiment of the present disclosure, it may be implemented as computer above with reference to the process of flow chart description
Software program.For example, embodiment of the disclosure includes a kind of computer program product comprising be carried on computer-readable medium
On computer program, which includes the program code for method shown in execution flow chart.In such reality
It applies in example, which can be downloaded and installed from network by communication device 509, or from storage device 508
It is mounted, or is mounted from ROM502.When the computer program is executed by processing unit 501, the embodiment of the present disclosure is executed
Method in the above-mentioned function that limits.
It should be noted that the above-mentioned computer-readable medium of the disclosure can be computer-readable signal media or meter
Calculation machine readable storage medium storing program for executing either the two any combination.Computer readable storage medium for example can be --- but not
Be limited to --- electricity, magnetic, optical, electromagnetic, infrared ray or semiconductor system, device or device, or any above combination.Meter
The more specific example of calculation machine readable storage medium storing program for executing can include but is not limited to: have the electrical connection, just of one or more conducting wires
Taking formula computer disk, hard disk, random access storage device (RAM), read-only memory (ROM), erasable type may be programmed read-only storage
Device (EPROM or flash memory), optical fiber, portable compact disc read-only memory (CD-ROM), light storage device, magnetic memory device,
Or above-mentioned any appropriate combination.In the disclosure, computer readable storage medium can be it is any include or storage journey
The tangible medium of sequence, the program can be commanded execution system, device or device use or in connection.And at this
In open, computer-readable signal media may include in a base band or as the data-signal that carrier wave a part is propagated,
In carry computer-readable program code.The data-signal of this propagation can take various forms, including but not limited to
Electromagnetic signal, optical signal or above-mentioned any appropriate combination.Computer-readable signal media can also be computer-readable and deposit
Any computer-readable medium other than storage media, the computer-readable signal media can send, propagate or transmit and be used for
By the use of instruction execution system, device or device or program in connection.Include on computer-readable medium
Program code can transmit with any suitable medium, including but not limited to: electric wire, optical cable, RF (radio frequency) etc. are above-mentioned
Any appropriate combination.
Above-mentioned computer-readable medium can be included in above-mentioned electronic equipment；It is also possible to individualism, and not
It is fitted into the electronic equipment.
Above-mentioned computer-readable medium carries one or more program, when said one or multiple programs are by the electricity
When sub- equipment executes, so that the electronic equipment: obtaining at least two internet protocol addresses；Send to Node evaluation equipment includes institute
State the Node evaluation request of at least two internet protocol addresses, wherein the Node evaluation equipment is internet from described at least two
In protocol address, chooses internet protocol address and return；Receive the internet protocol address that the Node evaluation equipment returns；Its
In, the fringe node in acquired internet protocol address instruction content distributing network.
Alternatively, above-mentioned computer-readable medium carries one or more program, when said one or multiple programs
When being executed by the electronic equipment, so that the electronic equipment: receiving the Node evaluation including at least two internet protocol addresses and request；
From at least two internet protocol address, internet protocol address is chosen；Return to the internet protocol address selected；Wherein,
The fringe node in internet protocol address instruction content distributing network received.
The calculating of the operation for executing the disclosure can be write with one or more programming languages or combinations thereof
Machine program code, above procedure design language include object oriented program language-such as Java, Smalltalk, C+
+, it further include conventional procedural programming language-such as " C " language or similar programming language.Program code can
Fully to execute, partly execute on the user computer on the user computer, be executed as an independent software package,
Part executes on the remote computer or executes on a remote computer or server completely on the user computer for part.
In situations involving remote computers, remote computer can pass through the network of any kind --- including local area network (LAN)
Or wide area network (WAN)-is connected to subscriber computer, or, it may be connected to outer computer (such as utilize Internet service
Provider is connected by internet).
Flow chart and block diagram in attached drawing are illustrated according to the system of the various embodiments of the disclosure, method and computer journey
The architecture, function and operation in the cards of sequence product.In this regard, each box in flowchart or block diagram can generation
A part of one module, program segment or code of table, a part of the module, program segment or code include one or more use
The executable instruction of the logic function as defined in realizing.It should also be noted that in some implementations as replacements, being marked in box
The function of note can also occur in a different order than that indicated in the drawings.For example, two boxes succeedingly indicated are actually
It can be basically executed in parallel, they can also be executed in the opposite order sometimes, and this depends on the function involved.Also it to infuse
Meaning, the combination of each box in block diagram and or flow chart and the box in block diagram and or flow chart can be with holding
The dedicated hardware based system of functions or operations as defined in row is realized, or can use specialized hardware and computer instruction
Combination realize.
Being described in unit involved in the embodiment of the present disclosure can be realized by way of software, can also be by hard
The mode of part is realized.Wherein, the title of unit does not constitute the restriction to the unit itself under certain conditions, for example, the
One acquiring unit is also described as " obtaining the unit of at least two internet protocol addresses ".
The disclosure additionally provides a kind of readable storage medium storing program for executing, is stored thereon with computer program, the computer journey stored
Above-mentioned preview file method is realized when sequence is executed by processor.
The readable storage medium storing program for executing of the disclosure includes but is not limited to disk, hard disk, random access storage device (RAM), read-only deposits
Reservoir (ROM), Erasable Programmable Read Only Memory EPROM (EPROM or flash memory), optical fiber, portable compact disc read-only memory
(CD-ROM), any combination of light storage device, magnetic memory device or above-mentioned device.
It is to be appreciated that the readable storage medium storing program for executing of the disclosure can be readable included in above-mentioned electronic equipment 500 deposit
Storage media is also possible to be individually present and be not installed at the readable storage medium storing program for executing in electronic equipment 500.
Further, the computer program that the readable storage medium storing program for executing of the disclosure is stored can be one or more journey
Sequence.
By the implementation disclosure, preview link can be hidden to user, ordinary user is not directly visible the link of preview,
Preview service address is avoided to be directly exposed to outer, prevention web crawlers etc. is directly obtained preview address.By to user right
Verifying, protects the safety of document, prevents document from causing information leakage by random preview.
The apparatus embodiments described above are merely exemplary, wherein described, unit can as illustrated by the separation member
It is physically separated with being or may not be, component shown as a unit may or may not be physics list
Member, it can it is in one place, or may be distributed over multiple network units.It can be selected according to the actual needs
In some or all of the modules achieve the purpose of the solution of this embodiment.
Through the above description of the embodiments, those skilled in the art can be understood that each embodiment can
It realizes by means of software and necessary general hardware platform, naturally it is also possible to pass through hardware.Based on this understanding, on
Stating technical solution, substantially the part that contributes to existing technology can be embodied in the form of software products in other words, should
Computer software product may be stored in a computer readable storage medium, such as magnetic disk, CD, read-only memory (ROM)
Or random access memory (RAM) etc., including some instructions use is so that a computer equipment (can be individual calculus
Machine, server or network equipment etc.) execute method described in certain parts of each embodiment or embodiment.
Above embodiments are only to illustrate the technical concepts and features of the disclosure, and its object is to allow person skilled in the art
Scholar can understand content of this disclosure and implement accordingly, the protection scope not limited the disclosure.It is all to be wanted with disclosure right
The equivalent changes and modifications that range is done are sought, should belong to the covering scope of disclosure claim.
It should be understood that for those of ordinary skills, it can be modified or changed according to the above description,
And all these modifications and variations all should belong to the protection scope of disclosure appended claims.
Claims (10)
1. a kind of preview file method, which comprises the following steps:
Receive preview file request；
It is requested according to the preview file, obtains check information corresponding with preview file request；
Judge whether the check information matches with default check information；
If so, according to the corresponding file content of preview file request, and the file content is returned into client
End；
If it is not, then terminating operation.
2. preview file method according to claim 1, which is characterized in that before reception preview file request also
Include:
Receive the download link request of preview file；
It is requested according to the download link, obtains the identity information of client；
Judge whether the identity information is legal；
If legal, the download link for requesting corresponding preview file with the download link is obtained, and the download link is returned
Back to client；The download link is the index for the preview link that user obtains preview file.
3. preview file method according to claim 2, which is characterized in that described that the download link is returned to client
After end further include:
Receive the preview link request of preview file；
It is requested according to the preview link, determines corresponding with preview link request preview link, and by the preview chain
It connects and returns to client；
Wherein, the preview link carries check information corresponding with preview link request, and described and preview link
Requesting corresponding check information is the default check information.
4. preview file method according to claim 3, which is characterized in that the method also includes:
The check information is stored in local storage.
5. preview file method according to claim 1, which is characterized in that it is described judge the check information whether in advance
If checking information matching includes:
It is searched in local storage according to the check information；
Judge to whether there is and the consistent default check information of the checking information in the local storage.
6. preview file method according to claim 1, which is characterized in that described if so, described according to the preview
File request obtains corresponding preview file, and the preview file is returned to client and includes:
It is requested according to the preview file, corresponding file content is obtained from preview service module；
The file content is returned into client, file content is rendered by client and client is showed to use
Family.
7. preview file method according to claim 1, which is characterized in that the check information includes timestamp and key
Information.
8. a kind of preview file device characterized by comprising
Receiving unit, for receiving preview file request；
Acquiring unit obtains check information corresponding with preview file request for requesting according to the preview file；
Judging unit, for judging whether the check information matches with default check information；
Execution unit, if being matched for the check information with default check information, according to the preview file request phase
The file content answered, and the file content is returned into client；If it is not, then terminating operation.
9. a kind of electronic equipment, which is characterized in that including processor, the processor is for executing the calculating stored in memory
It is realized when machine program such as the step of any one of claim 1-7 the method.
10. a kind of readable storage medium storing program for executing, is stored thereon with computer program, which is characterized in that the computer program is processed
It is realized when device executes such as the step of any one of claim 1-7 the method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811161022.0A CN109446823A (en) | 2018-09-30 | 2018-09-30 | Preview file method, apparatus, electronic equipment and readable storage medium storing program for executing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811161022.0A CN109446823A (en) | 2018-09-30 | 2018-09-30 | Preview file method, apparatus, electronic equipment and readable storage medium storing program for executing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109446823A true CN109446823A (en) | 2019-03-08 |
Family
ID=65546106
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811161022.0A Pending CN109446823A (en) | 2018-09-30 | 2018-09-30 | Preview file method, apparatus, electronic equipment and readable storage medium storing program for executing |
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| CN111460348A (en) * | 2020-03-31 | 2020-07-28 | 网易（杭州）网络有限公司 | File processing method and device |
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| CN113742663A (en) * | 2021-11-04 | 2021-12-03 | 江苏鲸准数科信息产业发展有限责任公司 | Watermark file acquisition method and device and electronic equipment |
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