JP2006260343A - Program for checking link cut - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a program for checking link cut for reporting, each time a browser receives an error message about link cut, to that effect also to the manager of the link-source Web page. <P>SOLUTION: When a link item, displayed on a display of a browser terminal 3, is operated, an HTTP request message for requesting start of the check program 221 is transmitted, from the browser terminal 3 to a check server 2. The check server 2, which starts the check program 211, according to the message, accesses the URL of a link destination Web content delivered as an argument, performs redirect processing to the link destination Web content when a response code showing normal is returned, answers error to the requesting source browser terminal 3, when a response code, showing abnormality, is returned, transmits a mail reporting link cut to a mail address corresponding to a manager code delivered as an argument, and registers the fact of the link cut, in a log. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a broken link check program for checking that a link set by an anchor tag incorporated in HTML data is broken.

  The web page displayed on the display by the browser program executed on the terminal based on the HTML data received from the web server via the Internet includes a link item for jumping to another web page existing on the Internet. There may be. This link item is displayed by an anchor tag of the following format incorporated in the HTML data.

<a href="http://www.nifty.com/"> nifty </a>
According to this anchor tag, a character string “nifty” is displayed as a link item in a web page (hereinafter referred to as “link source web page”). When the terminal operator (viewer) operates (clicks) the displayed link item “nifty” with a mouse or the like, an http request message is sent to the web server indicated by the URL embedded in the tag. Is transmitted, and an http response message storing web content (HTML data, image data, etc., hereinafter referred to as “link destination web content”) corresponding to the URL is returned from the web server, and based on the link destination web content The screen is displayed on the display of the terminal by the browser program.

  However, the link destination web content linked by the link item in the link source web page, that is, the link destination web content specified by the URL embedded in the anchor tag does not exist in the future. However, as time passes, it is often deleted, transferred, or made inaccessible due to renewal depending on the convenience of the administrator of the linked web content. In that case, even if the viewer who is displaying the link source web page on the display of the terminal operates the link item in the link source web page, it cannot jump to the link destination web content (i.e., Linked web content cannot be displayed on the terminal display). Such a state is generally called “broken link”, which not only gives viewers frustration that they cannot access the expected information, but also for the manager of the link source web page. Since the information cannot be transmitted, it is quickly corrected (for example, changing the link destination URL in the anchor tag to the transfer destination URL of the link destination web content, when the transfer destination URL is unknown or completely If it has been deleted, the URL is changed to the URL of another equivalent web content that is publicly available. If there is no such alternative web content, the link item itself is deleted. The web page structure must be re-edited to a structure that does not require the linked web content.

  The administrator of the link source web page manages if the link destination web content is uploaded in a web server operated by the same content provider as the link source web page (HTML data) of the link source web page. It is possible to immediately know that the link item in the link source web page is broken by checking the access log regularly and providing a notification based on the access log from the content provider.

  However, if the linked web content is uploaded to a web server operated by a content provider different from the web server to which the linked web page (HTML data) is uploaded, the link source web page The administrator cannot normally use the access log for the linked web content.

  In addition, when the viewer operates a link item that is broken, a response message (404 Not Found, etc.) indicating an error is returned from the web server corresponding to the link destination URL, and the viewer's terminal The message “Page not found” is only displayed on the display. Therefore, the information on the broken link discovered by the viewer is not immediately notified to the administrator of the link source web page.

  Therefore, the administrator of the link source web page periodically browses the link source web page, operates each link item included in the link page, and determines whether or not the link is broken. I had to make sure.

  However, if the number of link source web pages and link items managed by the administrator is enormous, the URL is manually input even if a patrol tool customized for such purpose is used. There was not much trouble, such as taking time and effort. In addition, when such a tool is used, it is necessary to go around in a predetermined formal order such as alphabetical order, so it is not used in practice, so there is a need for management. Even for a low web page, there is a disadvantage that patrol is performed before a web page with high importance.

  The present invention has been made in view of such a point, and the problem is that every time a viewer receives an error message indicating a broken link, a link that notifies the administrator of the link source web page to that effect. A cut check program is provided.

  A link break check program according to the present invention devised to solve the above-mentioned problems is a link break check program that is read and executed by a computer processing device that can communicate with a terminal device and other server devices via a network. The HTML data is specified by operating the anchor tag which is incorporated in the HTML data and designates its own URL and uses the URL of the link destination web content and the identification information of the administrator of the HTML data as arguments. A link destination that is activated when the terminal receives the request message including the arguments sent to the processing device of the terminal device that has been read and is included in the request message as an argument. Access to web content URL When a response code acquisition process for acquiring a response code is executed and the response code indicates normality, a redirect process is executed for the URL of the linked web content, while the response code is If it indicates that there is an abnormality, an e-mail notifying that a broken link has occurred for the anchor tag is sent to the administrator indicated by the identification information included as an argument in the request message. It is characterized in that a notification process for transmission is executed.

  When the link break check program of the present invention configured as described above receives a request message for redirecting to any link destination web content from the terminal device, it first accesses the link destination web content and responds to the access. If the code indicates normal, the redirect process is executed for the linked web content and the request is forwarded. On the other hand, if the response code indicates abnormal, the link source Notifying the administrator of HTML data of the occurrence of a broken link by e-mail. As a result, the administrator can know the fact that the link is broken without going around on his own, so it is possible to correct a link that is considered to be highly important because it was actually viewed by another person. It becomes possible.

  In the present invention, when the response code indicates an abnormality, the URL of the link source HTML data and the URL of the link destination web content may be associated with each other and recorded in the log. In this way, if a log is recorded each time a broken link is found, the administrator can analyze the log to identify a link with a higher number of times a broken link is found. As a result, it is possible to improve the efficiency of the correction work.

  As described above, according to the present invention, every time a viewer receives an error message indicating a broken link, the administrator of the link source web page is notified of that fact. You can know the facts immediately.

Hereinafter, an embodiment of a broken link check program according to the present invention will be described with reference to the drawings.
(System configuration)
FIG. 1 is a schematic configuration diagram of a network system for executing the above-described link break check program. As shown in FIG. 1, this network system is operated by the same content provider, and is connected to the Internet N and connected to each other by a LAN (Local Area Network) and a web content management server 1 Check server 2, browser terminal 3 accessible to the web content management server 1 via the Internet N, administrator terminal 4 accessible to the check server 2 via the Internet N, separate from the content provider The non-managed server 5 that is accessible from the check server 2 and the viewer terminal 3 via the network N. In FIG. 1, the Internet N is shown divided into two locations, but this is for convenience of illustration and is actually a single network.

  The browser terminal 3 and the administrator terminal 4 are ordinary personal computers or PDAs (Personal Digital Assistance) having an Internet connection function, communication hardware such as a modem and a LAN adapter, and communication programs and web browsers. Have such software.

  The web content management server 1 and the non-management server 5 are both server devices having the same hardware configuration and software. In other words, the web content management server 1 and the non-management server 5 include hardware such as CPUs 11 and 51 as control devices and disk devices 12 and 52 as storage media, respectively. The disk devices 12 and 52 are read and executed by the CPUs 11 and 51, respectively, to cause the CPUs 11 and 51 to function as web servers, and a large number of web contents 122 such as HTML data. , 522 are stored. When the CPUs 11 and 51 functioning as the web server receive the http request message specifying the URL of any one of the web contents 122 and 522, the CPU contents 51 and 522 indicate the web contents 122 and 522 indicated by the specified URL. The data is read from 52, stored in the http response message addressed to the terminal (viewer terminal 3) specified as the transmission source in the http response message, and responded to the terminal (viewer terminal 3).

  The web content management server 1 further stores a CMS program 120. The CMS program 120 is a program for automatically causing the CPU 11 to automatically output BLOG format HTML data as the web content 122 in accordance with a simple format instruction transmitted from the administrator terminal 4 operated by the administrator. The function of automatically incorporating an anchor tag for displaying a link item in the HTML data is one of the functions realized by the CMS program 120. However, the anchor tag format in which the CPU program 120 incorporates HTML data will be described in detail later.

  The check server 2 includes hardware such as a CPU 21 as a control device and a disk device 22 as a storage medium. The disk device 22 includes a check program 221 that is read and executed by the CPU 21, an administrator code table 222 that is referred to by the CPU 21 during execution of the check program 221, and a log 223 that is created by the CPU 21. Stored.

  This check program 221 causes the link item by each anchor tag set in each HTML data as the web content 122 stored in the disk device 12 of the web content management server 1 to be broken. It is a program to check whether or not. The contents of the processing by the check program 221 will be described in detail later with reference to FIG.

  As shown in FIG. 3, the administrator code table 222 includes an identification code (administrator) for each administrator of HTML data as the web content 122 stored in the disk device 12 of the web content management server 1. Code) and a mail address are defined in association with each other. In addition, the log 223 includes a record created for each link item in which a broken link has occurred, and each record records a URL of a link source web page in which the corresponding link item is incorporated. A field, a “link destination (unmanaged)” field in which the link destination URL of the link item is recorded, and a “number of times” field in which the number of times that the link item is found broken is recorded.

  The processing of each program relating to the link break check in the network system described above will be described below. As a premise for explanation, it is assumed that the path of the check program 221 is as follows.

172.19.146.25/linkcheck/chk.php
Here, “172.19.146.25” is the IP address of the check server 2, “chk.php” is the program name of the check program 221, and “linkcheck” is the name of the directory in which the check program 221 is stored.

  In addition, the anchor tag incorporated in any HTML data stored as the web content 122 in the disk device 12 of the web content management server 1 by the CMS program 120 described above is stored on the check server 2 as follows. The check program 221 is redirected.

<a href = "172.19.146.25/linkcheck/chk.php
? URL = link destination & id = administrator code ">
Link item character string or image data URL
</a>
Here,? Are the arguments passed to the redirect source check program 221. Now, the link destination web content of the redirect destination is any one of the web content 522 stored in the disk device 52 of the unmanaged server 5, and the URL is “http://www.nifty.com”. Suppose that Further, it is assumed that the manager code of the manager of the link source web page is “3038”. Furthermore, it is assumed that the character string as the link item is “nifty”. In this case, the contents of the anchor tag are as follows.

<a href = "172.19.146.25/linkcheck/chk.php
? URL = http: //www.nifty.com/&id=3038 "> nifty </a>
Therefore, when the viewer operates the link item “nifty” displayed by the anchor tag on the link source web page displayed on the display of any one of the viewer terminals 3, Thus, the activation of the check program 221 is requested, and the argument in the link item is passed to the check program 221.

  The check program 221 activated in this way executes the process outlined in the flowchart of FIG. In the first S1 after the start of this process, the check program 221 acquires the URL of the redirect destination link destination web content and the administrator code from the received argument.

  In next S2, the check program 221 accesses the URL of the link destination web content acquired in S1, and acquires a response code. As the response code, when there is a web content corresponding to the URL of the linked web content, “200” indicating normality is responded, and when such web content does not exist. Responds with “404” indicating that it is abnormal.

  In next S3, the check program 221 checks whether the response code acquired in S2 is “200” indicating normal or “404” indicating abnormal. If the response code is “200”, the check program 221 executes a redirect process for the URL of the link destination web content in S7. That is, an HTTP request message in which the URL of the link destination web content is designated as the destination and the IP address of the request source viewer terminal 3 is designated as the response destination is stored in the disk device 52 of the link destination web content 522. Send to unmanaged server 5. Then, the web server program 521 of the unmanaged server 5 reads the requested link destination web content 522 from the disk device 52 and stores it in the http response message addressed to the viewer terminal 3 whose IP address is specified as the response destination. And responds to the viewer terminal 3. As a result, the responded link destination web content 522 is displayed on the display of the browser terminal 3.

  On the other hand, when it is determined in S3 that the response code is “404”, the check program 221 displays an error display on the request source viewer terminal 3 in S4. That is, the HTML data of the web page indicating that the link destination web page cannot be found is returned to the request source viewer terminal 3.

  In the next S5, the check program 221 reads the administrator's email address corresponding to the administrator code acquired in S2 from the administrator code table 222, and the link has been broken to this email address. That is, an e-mail describing that there is no link destination web content in the link is transmitted. This description needs to include the URL of the link source HTML data including the link, and such URL can be acquired from the referrer notified from the request source viewer terminal 3.

  In the next S6, the check program 221 records the record of the URL of the link source HTML data acquired from the referrer in the “link source” column and the record of the URL of the link destination web content in the “link destination” column. Check whether it is included in If such a record does not exist in the log 223, such a record is newly created and 1 is recorded in the “number of times” column of the new record. On the other hand, if such a record already exists, the value in the “number of times” column of that record is incremented by one.

  According to the link break check program of the present embodiment described above, when any viewer operates any link item in any link source web page, the link item is broken. If the link item is displayed, an error is displayed on the display of the viewer terminal 3 of the viewer (S4), and the fact that the link item is broken is managed by the mail by managing the link source web page. The fact that the link is broken is recorded in the log 223 (S6). In addition, when a plurality of viewers perform an operation on the same link item in which a link break has occurred, each time an operation is performed by each viewer, the record registered in the log 223 regarding the link item The value in the “number of times” column of “” is incremented. Since the value in the “number of times” column incremented in this way is the number of times the link item has been operated by each viewer, it can be said that it indicates the importance of the link item. The higher the importance of the link item, the higher the necessity for correction. Therefore, the viewer can know the priority of correction of each link item by sorting the log 223 in descending order of the value in the “number of times” column for each link item in the web page managed by the viewer. Even if a link break occurs, a link item that is not operated at all is not notified to the administrator or registered in the log 223. However, such a link item has low importance and needs to be corrected. Since it is considered to be low, there is virtually no problem.

Block diagram of a network system as an embodiment of the present invention Flow chart showing processing executed in accordance with the check program Diagram showing the structure of the administrator code table Diagram showing log configuration

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Web content management server 2 Check server 3 Browser terminal 4 Administrator terminal 5 Unmanaged server 21 CPU
122 Content 221 Check program 222 Administrator code table 223 Log 521 Web server 522 Content

Claims (4)

A link break check program that is read and executed by a computer processing device capable of communicating with a terminal device and other server devices via a network,
The terminal that has been read into the HTML data by operating an anchor tag that is incorporated in the HTML data, specifies its own URL, and uses the URL of the linked web content and the identification information of the administrator of the HTML data as arguments. It is activated when the terminal receives a request message including the arguments sent to the processing device of the device,
For the processor
Executing a response code acquisition process for acquiring a response code by accessing the URL of the linked web content included as an argument in the request message;
When this response code indicates normal, a redirect process for the URL of the linked web content is executed,
If the response code indicates an abnormality, the e-mail notifying that a broken link has occurred for the anchor tag is indicated by the identification information included as an argument in the request message. A broken link check program that executes notification processing to be sent to an administrator. In response to the processing device, the notification process corresponds to the identification information included as an argument in the request message by referring to a table in which identification information and an email address are associated with each administrator. The broken link check program according to claim 1, wherein the e-mail address is read and the e-mail is transmitted to the read e-mail address. In the case where the response code indicates an abnormality, the URL of the HTML data and the URL of the linked web content are further recorded in the log in association with the processing device. The broken link check program according to claim 1. When the processing is to be performed on the processing device, the log contains the URL of the HTML data when the combination of the URL of the HTML data and the URL of the linked web content is to be recorded in the log multiple times. The link break check program according to claim 1, wherein the number of times of receiving a response code indicating an abnormality is recorded in association with a combination of the URL of the link destination web content.