php/crawler/probably-more-old/crawler.phps

   1 #!/usr/bin/php
   2 <?php
   3 //HSp33der Web Crawler 5.6
   4 //<-Harvie 2oo7/8
   5 /*
   6  * Description:
   7  * This script crawls the web and printing found URLs to STDOUT.
   8  *
   9  * Installation:
  10  * - Debian:
  11  *   # apt-get install php5-cli php5-curl curl sort
  12  *   $ chmod +x crawler.php
  13  *   $ ./crawler.php (or $ php crawler.php)
  14  * - Windows:
  15  *   c:/>path/to/php5/php.exe crawler.php
  16  *   (you can add php.exe to PATH or associate .php files with it)
  17  *
  18  * Notes:
  19  * - You can use EtherApe (or similar sniffer) to get graphical
  20  * illustration of connecions (spider with your machine in center).
  21  * - There are few bugs in PHP5,
  22  * so this crawler may freeze after few minutes,
  23  * but you can use $use_curlbin option (need some extra files).
  24  * Check this for more info: http://bugs.php.net/bug.php?id=43098
  25  *
  26  * Tips & Tricks:
  27  * - Make found URLs 100% unique:
  28  * cat urls.txt | sort -u > uurls.txt && mv -f uurls.txt urls.txt
  29  * - Show filesize and total urls count:
  30  * du -h urls.txt && cat urls.txt | wc -l
  31  * - Open another output pipe:
  32  * tail -f urls.txt
  33  * - Use some plugin (filter) to extract emails, etc...
  34  * tail -f urls.txt | ./example_mail_extractor.php
  35  *
  36  * Special thx2:
  37  * - PHP, cURL (technology)
  38  * - root.cz & php.net (help)
  39  * - Linus Torvalds (because I am crawling from Linux)
  40  */
  41
  42 ///SETTINGS//////////////////
  43 //Basic
  44 $seed = 'http://www.secunia.com/'; //Start crawling from this page
  45 $file = 'urls.txt'; //File to save crawled URLs (use sort to make URLs 100% exclusive)
  46 $delete_url_db = false; //Delete file with saved URLs before crawling
  47 $restore = true; //Use last url from $file instead of seed
  48 //Advanced
  49 $max_size = 10000; //How many bytes download from each page?
  50 $max_urls = 30; //Size of URL buffer (prebuffered URLs to crawl, if full, no more URLs will be added to queue)
  51 $buffer_increase = false; //Increase buffer at buffer underrun?
  52 $random_url = false; //Select random urls from page? (This may override URL filter)
  53 $history_max = 1000; //How many last URLs keep in history? (historied URLs will not be crawled again...)
  54 //Curl binary plugin
  55 $use_curlbin = true; //Use interface to cURL executable instead of file_get_contents() (More speed, less crashes)
  56 $curlpath = 'curl'; //Path to cURL executable binary (you can download it from http://curl.haxx.se/)
  57 //Sort binary plugin
  58 $use_sortbin = true; //Use sort to make URLs unique?
  59 $sortpath = 'sort'; //Path to SORT executable binary (get it from your OS or UNXUtils for Windows)
  60 $sort_each = $history_max; //Sort file after X new URLs
  61 //System/PHP
  62 $socket_timeout = 1; //How long you want wait for a webserver? (seconds)
  63 $time_limit = 0; //How long run? (seconds; 0==infinite)
  64 $memory_limit = '128M'; //Maximum memory to eat (if exhausted, crawler will stop)
  65 //Debug
  66 $debug = true; //Use debuging mode? (Print errors and statistics)
  67
  68 //Filter
  69 $eregi_url_blacklist = array( //Most important thing when crawling ;D
  70     '(W3\.org|W3C)', //Hell knows...
  71     '(shop|xxx|porn|lesbian|hot)', //Commercial sites
  72     '(google|209.85.135.104|yahoo.com|amazon.com|youtube.com)', //Big sites
  73     '(seznam.cz|centrum.cz|atlas.cz|zoznam.sk|quick.cz)', //Big local sites
  74     '.\.(css|ico|gif|jpg|png|bmp|cgi|js|vbs)', //Misc. webpage content
  75     '.\.(avi|mpg|mpeg|mov|wmv|wm|mp3|ogg|wma)', //Multimedia files
  76     '.\.(pdf|swf|flv|cfm)', //Other text files
  77     '.\.(exe|zip|rar|gz|bz|bz2|tar)' //Big and binary files
  78 );
  79
  80
  81 ///FUNCTIONS/////////////////
  82 function shell_sort_file($file, $tmpfile='.tmp') {
  83         $tmpfile = $file.$tmpfile;
  84         if($GLOBALS['debug']) echo("-SORTing $file (using tempfile $tmpfile)\n");
  85         @unlink($tmpfile);
  86         system($GLOBALS['sortpath']." -u $file > $tmpfile");
  87         if(is_file($tmpfile) && (filesize($tmpfile) > 3)) {
  88                 unlink($file);
  89                 rename($tmpfile, $file);
  90         } else {
  91                 if($GLOBALS['debug']) echo("-SORTing failed!!!\n");
  92         }
  93          if($GLOBALS['debug']) echo("-SORTing done!\n");
  94 }
  95
  96 function shell_curl_get($url, $timeout=0, $maxdata=0) { //I made this cURL interface cause file_get_contents() absolutely sux
  97     $curl = 'curl';
  98     if(isset($GLOBALS['curlpath'])) $curl = $GLOBALS['curlpath'];
  99     $args = "--get --location --connect-timeout $timeout --max-time $timeout --compressed --stderr curl.debug";
 100     $url = escapeshellcmd(trim($url));
 101     $cmd = "$curl --url \"$url\" $args";
 102     if($GLOBALS['debug']) echo("-Ex: $cmd\n");
 103     $fp = popen($cmd, 'r');
 104     stream_set_timeout($fp, $timeout);
 105     stream_set_blocking($fp, 0);
 106     //if($timeout>0) sleep($timeout);
 107     $data = '';
 108     while(!feof($fp)) {
 109         $in = fgets($fp, 100);
 110         $data .= $in;
 111         if($maxdata>0 && strlen($data)>=$maxdata) break;
 112         if($in == '') usleep(1000000/8);
 113     }
 114     @fclose($fp);
 115     return $data;
 116 }
 117
 118 function check_crawl_url($url) { //Use this function to determine if url is wanted
 119     foreach($GLOBALS['eregi_url_blacklist'] as $black_url) {
 120         if(eregi($black_url, $url)) return(0);
 121     }
 122     if(in_array($url, $GLOBALS['urls'])) return(0);
 123     $file_url = explode('?', $url, 2); $file_url = $file_url[0];
 124     if(in_array($file_url, $GLOBALS['history'])) return(0);
 125     return(1);
 126 }
 127
 128
 129 ///CODE//////////////////////
 130 //Init
 131 if($restore && is_file($file)) { //Load last url as seed
 132     $urls[1]=$seed; //original seed as backup (if no urls found at restored page)
 133     if($debug) echo("!Restoring: ");
 134     $rest = fopen($file, 'r');
 135     while(!feof($rest)) {
 136         $seed = $new;
 137         $new = fgets($rest);
 138     }
 139     fclose($rest);
 140     $seed = trim($seed);
 141     if($debug) echo($seed."\n");
 142     $urls[0]=$seed;
 143     $seed=$urls[1];
 144 }
 145
 146 if($delete_url_db) @unlink($file);
 147 ini_set('default_socket_timeout',$socket_timeout);
 148 set_time_limit($time_limit);
 149 ini_set('memory_limit', $memory_limit);
 150
 151 //Loop
 152 if($debug) { $u = 0; $c = 0; $t = time(); }
 153 $history[0] = '';
 154 $sort_next = $sort_each;
 155 $sorted_db = 0;
 156 $fp = fopen($file, 'a+');
 157 while(true) { //MAIN L00P
 158     if(sizeof($urls) <= 0) {
 159         $urls='';
 160         $urls[0]=$seed;
 161         if($buffer_increase) $max_urls++; //Increase size of buffer by one
 162         if($debug) echo("!Buffer underrun! !Buffer size is: $max_urls!\n");
 163     }
 164
 165     //Get URL from buffer, download few bytes and write down URLs to array:
 166     $url = array_shift($urls);
 167     if($debug) echo("-Parsing: $url\n");
 168     if(!$use_curlbin) { $page = @file_get_contents($url, false, null, 0, $max_size); }
 169     else { $page = shell_curl_get($url, $socket_timeout, $max_size); }
 170     preg_match_all('(http:\/\/[_a-zA-Z0-9\.\-]+\.[a-zA-Z]{2,4}\/{1}[-_~&=\ ?\.a-z0-9\/]*)',htmlspecialchars_decode($page), $new_urls);
 171     $new_urls = $new_urls[0];
 172
 173     foreach($new_urls as $new_url) { //Process grabed URLs
 174         if($debug) $c++;///Debug
 175         if(check_crawl_url($new_url)) {
 176             echo($new_url."\n");
 177             fwrite($fp, $new_url."\n");
 178
 179             if($use_sortbin) { //Handle sorting (unique URLs)
 180                 $sort_next--;
 181                 if($sort_next<=0) {
 182                   fclose($fp);
 183                         shell_sort_file($file);
 184                         if($debug) {
 185                                 $sorted_db = 0;
 186                                 $fp = fopen($file, 'r');
 187                                 while(!feof($fp)) {
 188                                         fgets($fp);
 189                                         $sorted_db++;
 190                                 }
 191                                 fclose($fp);
 192                         }
 193                         $fp = fopen($file, 'a+');
 194                         $sort_next = $sort_each;
 195                 }
 196             }
 197
 198             $file_url = explode('?', $new_url, 2); $file_url = $file_url[0];
 199             array_push($history, $file_url);
 200             while(sizeof($history) > $history_max) @array_shift($history);
 201             if($random_url) { if(sizeof($urls) < $max_urls) array_push($urls, $new_urls[rand(0,sizeof($new_urls)-1)]); }
 202                 else { if(sizeof($urls) < $max_urls) array_push($urls, $new_url); }
 203             if($debug) { ///Debug Block
 204                 $u++;
 205                 $sorted_db++;
 206                 $uspeed = round($u/(time()-$t+1), 2);
 207                 $cspeed = round($c/(time()-$t+1), 2);
 208                 $time = round((time()-$t)/60, 1);
 209                 $buffered = sizeof($urls);
 210                 $historied = sizeof($history);
 211                 $memory = round(memory_get_usage()/1000000, 2);
 212                 echo("+$u ($sorted_db sorted) URLs; $c Downloaded; UpTime: $time mins; Buffered: $buffered URLs; History: $historied URLs; To sort: $sort_next URLs; Speed: $uspeed URLs/s, $cspeed Downloads/s; Memory used: $memory/$memory_limit\n");
 213             }
 214         }
 215     }
 216     $new_urls = ''; //Memory cleanup
 217 }
 218
 219 ##EOF