文件抓取器PHP [英] File Crawler PHP

问题描述

只是想知道如何递归地搜索网站文件夹目录（与脚本上传的目录相同），并打开/读取每个文件并搜索特定的字符串？

例如我可能会这样：

search.php？string = hello％20world

这将运行一个进程，然后输出一些像

 hello world found inside
 
 httpdocs 
 /index.php 
 /contact.php 
 
 httpdocs / private / 
 ../prviate.php 
 ../morestuff.php 
 ../tastey.php 
 
 httpdocs / private / love 
 ../../goodness.php 
  

我不想让它链接 - 作为私有文件和非链接文件进行链接，但我希望其他所有非二进制文件都可以访问。

非常感谢

欧文

解决方案<

1）使用 grep code> exec 命令（仅当服务器支持）：

  $ query = $ _GET [ '字串']; 
 $ found = array（）; 
 exec（grep -Ril。escapeshellarg（$ query）。'$ _SERVER ['DOCUMENT_ROOT']，$ found）; 
  

完成后，包含查询的每个文件路径都将放在 $结果。您可以根据需要迭代此数组并处理/显示。

2）循环遍历文件夹并打开每个文件，搜索字符串，并保存发现：

 功能搜索（$ file，$ query，& $ found）{
 if（is_file文件））{
 $ contents = file_get_contents（$ file）; 
 if（strpos（$ contents，$ query）！== false）{
 //文件包含查询字符串
 $ found [] = $ file; 
} 
} else {
 //文件是一个目录
 $ base_dir = $ file; 
 $ dh = opendir（$ base_dir）; $（$ $ $ $）（$ file = readdir（$ dh）））{
 if（（$ file！='。'）& b $ b //调用search（）找到的文件/目录
 search（$ base_dir。'/'。$ file，$ query，$ found）; 
} 
} 
 closedir（$ dh）; 
} 
} 
 
 $ query = $ _GET ['string']; 
 $ found = array（）; 
 search（$ _ SERVER ['DOCUMENT_ROOT']，$ query，$ found）; 
  

应该（未经测试）递归搜索所需字符串的每个子文件夹/文件。如果找到，它将在变量 $ found 。

just wondering how it would be possible to recursively search through a website folder directory (the same one as the script is uploaded to) and open/read every file and search for a specific string?

for example I might have this:

search.php?string=hello%20world

this would run a process then output somethign like

"hello world found inside"

httpdocs
/index.php
/contact.php

httpdocs/private/
../prviate.php
../morestuff.php
../tastey.php

httpdocs/private/love
../../goodness.php

I dont want it to link- crawl as private files and unlinked files are round, but i'd like every other non-binary file to be access really.

many thanks

Owen

解决方案

Two immediate solutions come to mind.

1) Using grep with the exec command (only if the server supports it):

$query = $_GET['string'];
$found = array();
exec("grep -Ril '" . escapeshellarg($query) . "' " . $_SERVER['DOCUMENT_ROOT'], $found);

Once finished, every file-path that contains the query will be placed in $found. You can iterate through this array and process/display it as needed.

2) Recursively loop through the folder and open each file, search for the string, and save it if found:

function search($file, $query, &$found) {
    if (is_file($file)) {
        $contents = file_get_contents($file);
        if (strpos($contents, $query) !== false) {
            // file contains the query string
            $found[] = $file;
        }
    } else {
        // file is a directory
        $base_dir = $file;
        $dh = opendir($base_dir);
        while (($file = readdir($dh))) {
            if (($file != '.') && ($file != '..')) {
                // call search() on the found file/directory
                search($base_dir . '/' . $file, $query, $found);
            }
        }
        closedir($dh);
    }
}

$query = $_GET['string'];
$found = array();
search($_SERVER['DOCUMENT_ROOT'], $query, $found);

This should (untested) recursively search into each subfolder/file for the requested string. If it's found, it will be in the variable $found.

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