X-Git-Url: https://vcs.fsf.org/?p=squirrelmail.git;a=blobdiff_plain;f=functions%2Furl_parser.php;h=c9ee48627853ec8ef5a68a920e200da3f6ff45db;hp=bcb5f7b91d113677d7ab93a6e7f086f127fe313a;hb=7350889b45590aee831ba1150ee94efb95b03992;hpb=3806fa52f70c5cb6f923957f7a1c2e0e867d0fdf

diff --git a/functions/url_parser.php b/functions/url_parser.php
index bcb5f7b9..c9ee4862 100644
--- a/functions/url_parser.php
+++ b/functions/url_parser.php
@@ -1,54 +1,154 @@
 <?php
-   /* URL Passing code to allow links from with in emails */
 
-   $url_parser_php = true;
+   /**
+    *  url_parser.php
+    *
+    *  Copyright (c) 1999-2001 The Squirrelmail Development Team
+    *  Licensed under the GNU GPL. For full terms see the file COPYING.
+    *
+    *  This code provides various string manipulation functions that are
+    *  used by the rest of the Squirrelmail code.
+    *
+    *  $Id$
+    */
 
-   function replaceBlock ($in, $replace, $start, $end) {
+   function replaceBlock (&$in, $replace, $start, $end) {
       $begin = substr($in,0,$start);
       $end   = substr($in,$end,strlen($in)-$end);
-      $ret   = $begin.$replace.$end;
-      return $ret;
+      $in    = $begin.$replace.$end;
    }
 
-   function parseEmail ($body) {
-      $body = eregi_replace ("([a-z]|[0-9]|_|\.|-)+\@([a-z]|[0-9]|_|-)+(\.([a-z]|[0-9]|_|-)+)*", "<a href=\"../src/compose.php?send_to=\\0\">\\0</a>", $body);
-      return $body;
-   }
-
-   function parseUrl ($body) {
-      #Possible ways a URL could finish.
-
-      $poss_ends=array(" ", "\n", "\r", "<", ">", ".\r", ".\n", ".&nbsp", "&nbsp", ")", "(");
-      $done=False;
-      while (!$done) {
-         #Look for when a URL starts
-         $where = strpos($body,"http:",$start);
-         if ($where) {
-            # Find the end of that URL
-            reset($poss_ends); $end=0; 
-            while (list($key, $val) = each($poss_ends)) {
-               $enda = strpos($body,$val,$where);
-               if ($end == 0) $end = $enda;
-               if ($enda < $end and $enda != 0) $end = $enda;
-            } 
-            #Extract URL
-            $url = substr($body,$where,$end-$where);
-            #Replace URL with HyperLinked Url
-            if ($url != "") {
-               $url_str = "<a href=\"$url\" target=\"_blank\">$url</a>";
-               #    $body = str_replace($url,$url_str,$body); 
-               $body = replaceBlock($body,$url_str,$where,$end);
-               $start = strpos($body,"</a>",$where);
-            } else { 
-               $start = $where + 7; 
-            } 
-         } else {
-            $done=true;
+   // Having this defined in just one spot could help when changes need
+   // to be made to the pattern
+   // Make sure that the expression is evaluated case insensitively
+   // 
+   // Here's pretty sophisticated IP matching:
+   // $IPMatch = '(2[0-5][0-9]|1?[0-9]{1,2})';
+   // $IPMatch = '\[?' . $IPMatch . '(\.' . $IPMatch . '){3}\]?';
+   //
+   // Here's enough:
+   global $IP_RegExp_Match, $Host_RegExp_Match, $Email_RegExp_Match;
+   $IP_RegExp_Match = '\\[?[0-9]{1,3}(\\.[0-9]{1,3}){3}\\]?';
+   $Host_RegExp_Match = '(' . $IP_RegExp_Match . 
+       '|[0-9a-z]([-.]?[0-9a-z])*\\.[a-z][a-z]+)';
+   $Email_RegExp_Match = '[0-9a-z]([-_.]?[0-9a-z])*(%' . $Host_RegExp_Match . 
+       ')?@' . $Host_RegExp_Match;
+      
+   function parseEmail (&$body) {
+      global $color, $Email_RegExp_Match;
+      $Size = strlen($body);
+      
+      /*
+        This is here in case we ever decide to use highlighting of searched
+        text.  this does it for email addresses
+        
+      if ($what && ($where == "BODY" || $where == "TEXT")) {
+         eregi ($Email_RegExp_Match, $body, $regs);
+         $oldaddr = $regs[0];
+         if ($oldaddr) {
+            $newaddr = eregi_replace ($what, "<b><font color=\"$color[2]\">$what</font></font></b>", $oldaddr);
+            $body = str_replace ($oldaddr, "<a href=\"../src/compose.php?send_to=$oldaddr\">$newaddr</a>", $body); 
          }
+      } else { 
+         $body = eregi_replace ($Email_RegExp_Match, "<a href=\"../src/compose.php?send_to=\\0\">\\0</a>", $body);
       }
-
-      return $body;
+      */
+      
+      $body = eregi_replace ($Email_RegExp_Match, "<a href=\"../src/compose.php?send_to=\\0\">\\0</a>", $body); 
+      
+      // If there are any changes, it'll just get bigger.
+      if ($Size != strlen($body))
+          return 1;
+      return 0;
    }
 
-?>
 
+   // We don't want to re-initialize this stuff for every line.  Save work
+   // and just do it once here.
+   global $url_parser_url_tokens;
+   $url_parser_url_tokens = array(
+       'http://',
+       'https://',
+       'ftp://',
+       'telnet:',  // Special case -- doesn't need the slashes
+       'gopher://',
+       'news://');
+
+   global $url_parser_poss_ends;
+   $url_parser_poss_ends = array(' ', "\n", "\r", '<', '>', ".\r", ".\n", 
+       '.&nbsp;', '&nbsp;', ')', '(', '&quot;', '&lt;', '&gt;', '.<', 
+       ']', '[', '{', '}', "\240", ', ', '. ', ",\n", ",\r");
+
+
+   function parseUrl (&$body)
+   {
+      global $url_parser_poss_ends, $url_parser_url_tokens;;
+      $start = 0;
+      $target_pos = strlen($body);
+      
+      while ($start != $target_pos)
+      {
+        $target_token = '';
+        
+        // Find the first token to replace
+        foreach ($url_parser_url_tokens as $the_token)
+        {
+          $pos = strpos(strtolower($body), $the_token, $start);
+          if (is_int($pos) && $pos < $target_pos)
+          {
+            $target_pos = $pos;
+            $target_token = $the_token;
+          }
+        }
+        
+        // Look for email addresses between $start and $target_pos
+        $check_str = substr($body, $start, $target_pos);
+       
+        if (parseEmail($check_str))
+        {
+          replaceBlock($body, $check_str, $start, $target_pos);
+          $target_pos = strlen($check_str) + $start;
+        }
+
+        // If there was a token to replace, replace it
+        if ($target_token != '')
+        {
+          // Find the end of the URL
+          $end=strlen($body); 
+          foreach ($url_parser_poss_ends as $key => $val)
+          {
+            $enda = strpos($body,$val,$target_pos);
+            if (is_int($enda) && $enda < $end) 
+              $end = $enda;
+          }
+          
+          // Extract URL
+          $url = substr($body, $target_pos, $end-$target_pos);
+          
+          // Needed since lines are not passed with \n or \r
+          while ( ereg("[,\.]$", $url) ) {
+            $url = substr( $url, 0, -1 );
+            $end--;
+          }
+
+          // Replace URL with HyperLinked Url, requires 1 char in link
+          if ($url != '' && $url != $target_token) 
+          {
+            $url_str = "<a href=\"$url\" target=\"_blank\">$url</a>";
+            replaceBlock($body,$url_str,$target_pos,$end);
+            $target_pos += strlen($url_str);
+          } 
+          else 
+          { 
+             // Not quite a valid link, skip ahead to next chance
+             $target_pos += strlen($target_token);
+          }
+        }
+        
+        // Move forward
+        $start = $target_pos;
+        $target_pos = strlen($body);
+      }
+   }
+   
+?>