X-Git-Url: https://vcs.fsf.org/?a=blobdiff_plain;f=functions%2Fstrings.php;h=70bf69a1a93f388d42df945e1c1d731cea6bdb65;hb=9374671f3056dc99d53f3a10927ae9ebc8a39eb5;hp=5d4501342b09082166b1e35360e33f8601636319;hpb=45f6dd68fe742e12c488dbf1d044593aa0eac98a;p=squirrelmail.git

diff --git a/functions/strings.php b/functions/strings.php
index 5d450134..70bf69a1 100644
--- a/functions/strings.php
+++ b/functions/strings.php
@@ -1,145 +1,202 @@
 <?php
 
-   $strings_php = true;
+   /* $Id$ */
+
+   if (defined('strings_php'))
+       return;
+   define('strings_php', true);
+
 
    //*************************************************************************
    // Count the number of occurances of $needle are in $haystack.
+   // $needle can be a character or string, and need not occur in $haystack
    //*************************************************************************
    function countCharInString($haystack, $needle) {
-      $len = strlen($haystack);
-      for ($i = 0; $i < $len; $i++) {
-         if ($haystack[$i] == $needle)
-            $count++;
-      }
-      return $count;
+      if ($needle == '') return 0;
+      return count(explode($needle, $haystack));
    }
 
    //*************************************************************************
    // Read from the back of $haystack until $needle is found, or the begining
-   //    of the $haystack is reached.
+   //    of the $haystack is reached.  $needle is a single character
    //*************************************************************************
    function readShortMailboxName($haystack, $needle) {
-      if (substr($haystack, -1) == $needle)
-         $haystack = substr($haystack, 0, strlen($haystack) - 1);
+      if ($needle == '') return $haystack;
+      $parts = explode($needle, $haystack);
+      $elem = array_pop($parts);
+      while ($elem == '' && count($parts))
+      {
+          $elem = array_pop($parts);
+      }
+      return $elem;
+   }
 
-      if (strrpos($haystack, $needle)) {
-         $pos = strrpos($haystack, $needle) + 1;
-         $data = substr($haystack, $pos, strlen($haystack));
-      } else {
-         $data = $haystack;
+   //*************************************************************************
+   // Read from the back of $haystack until $needle is found, or the begining
+   //    of the $haystack is reached.  $needle is a single character
+   //*************************************************************************
+   function readMailboxParent($haystack, $needle) {
+      if ($needle == '') return '';
+      $parts = explode($needle, $haystack);
+      $elem = array_pop($parts);
+      while ($elem == '' && count($parts))
+      {
+          $elem = array_pop($parts);
       }
-      return $data;
+      return join($needle, $parts);
    }
 
    // Searches for the next position in a string minus white space
    function next_pos_minus_white ($haystack, $pos) {
-      while (substr($haystack, $pos, 1) == " " ||
+      while (substr($haystack, $pos, 1) == ' ' ||
              substr($haystack, $pos, 1) == "\t" ||
              substr($haystack, $pos, 1) == "\n" ||
              substr($haystack, $pos, 1) == "\r") {
          if ($pos >= strlen($haystack))
             return -1;
          $pos++;
-      }        
-      return $pos;        
+      }
+      return $pos;
    }
 
    // Wraps text at $wrap characters
    // Has a problem with special HTML characters, so call this before
    // you do character translation.
    // Specifically, &#039 comes up as 5 characters instead of 1.
+   // This should not add newlines to the end of lines.
    function sqWordWrap(&$line, $wrap) {
-      preg_match("/^([\s>]+)([^\s>].*)/", $line, $regs);
+      ereg("^([\t >]*)([^\t >].*)?$", $line, $regs);
       $beginning_spaces = $regs[1];
-      $words = explode(" ", $regs[2]);
+           if (isset($regs[2])) {
+         $words = explode(' ', $regs[2]);
+      } else {
+         $words = "";
+           }
 
       $i = 0;
       $line = $beginning_spaces;
-      if (count($words) > 1) {
-         while ($i < count($words)) {
-            // Force one word to be on a line (minimum)
-            $line .= $words[$i] . ' ';
-            $line_len = strlen($beginning_spaces) + strlen($words[$i]) +
-                strlen($words[$i + 1]) + 2;
+
+      while ($i < count($words)) {
+         // Force one word to be on a line (minimum)
+         $line .= $words[$i];
+         $line_len = strlen($beginning_spaces) + strlen($words[$i]) + 2;
+          if (isset($words[$i + 1]))
+              $line_len += strlen($words[$i + 1]);
+         $i ++;
+
+         // Add more words (as long as they fit)
+         while ($line_len < $wrap && $i < count($words)) {
+            $line .= ' ' . $words[$i];
+            $i++;
+             if (isset($words[$i]))
+                $line_len += strlen($words[$i]) + 1;
+             else
+                 $line_len += 1;
+         }
+
+         // Skip spaces if they are the first thing on a continued line
+         while (!isset($words[$i]) && $i < count($words)) {
             $i ++;
-            
-            // Add more words (as long as they fit)
-            while ($line_len < $wrap && $i < count($words)) {
-               $line .= $words[$i] . ' ';
-               $i++;
-               $line_len += strlen($words[$i]) + 1;
-            }
-            
-            // Skip spaces if they are the first thing on a continued line
-            while (!$words[$i] && $i < count($words))
-            {
-               $i ++;
-            }
-            
-            if ($i < count($words)) {
-               $line .= "\n$beginning_spaces";
-            }
          }
-      } else {
-         $line .= $words[0];
+
+         // Go to the next line if we have more to process
+         if ($i < count($words)) {
+            $line .= "\n" . $beginning_spaces;
+         }
       }
    }
 
+
+   // Does the opposite of sqWordWrap()
+   function sqUnWordWrap(&$body)
+   {
+       $lines = explode("\n", $body);
+       $body = "";
+       $PreviousSpaces = "";
+       for ($i = 0; $i < count($lines); $i ++)
+       {
+           ereg("^([\t >]*)([^\t >].*)?$", $lines[$i], $regs);
+           $CurrentSpaces = $regs[1];
+            if (isset($regs[2]))
+               $CurrentRest = $regs[2];
+           if ($i == 0)
+           {
+               $PreviousSpaces = $CurrentSpaces;
+               $body = $lines[$i];
+           }
+           else if ($PreviousSpaces == $CurrentSpaces &&  // Do the beginnings match
+               strlen($lines[$i - 1]) > 65 &&             // Over 65 characters long
+               strlen($CurrentRest))                      // and there's a line to continue with
+           {
+               $body .= ' ' . $CurrentRest;
+           }
+           else
+           {
+               $body .= "\n" . $lines[$i];
+               $PreviousSpaces = $CurrentSpaces;
+           }
+       }
+       $body .= "\n";
+   }
+
+
    /** Returns an array of email addresses **/
+   /* Be cautious of "user@host.com" */
    function parseAddrs($text) {
-      if (trim($text) == "") {
-         return;
-      }
-      $text = str_replace(" ", "", $text);
-      $text = ereg_replace( '"[^"]*"', "", $text);
-      $text = str_replace(",", ";", $text);
-      $array = explode(";", $text);
+      if (trim($text) == "")
+         return array();
+      $text = str_replace(' ', '', $text);
+      $text = ereg_replace('"[^"]*"', '', $text);
+      $text = ereg_replace('\\([^\\)]*\\)', '', $text);
+      $text = str_replace(',', ';', $text);
+      $array = explode(';', $text);
       for ($i = 0; $i < count ($array); $i++) {
-			    $array[$i] = eregi_replace ("^.*[<]", "", $array[$i]);
-			    $array[$i] = eregi_replace ("[>].*$", "", $array[$i]);
-		  }
+                               $array[$i] = eregi_replace ("^.*[<]", '', $array[$i]);
+                               $array[$i] = eregi_replace ("[>].*$", '', $array[$i]);
+                    }
       return $array;
    }
 
    /** Returns a line of comma separated email addresses from an array **/
    function getLineOfAddrs($array) {
       if (is_array($array)) {
-        $to_line = implode(", ", $array);
-        $to_line = trim(ereg_replace(",,+", ",", $to_line));
+        $to_line = implode(', ', $array);
+        $to_line = trim(ereg_replace(', (, )+', ', ', $to_line));
       } else {
-        $to_line = "";
+        $to_line = '';
       }
-      return $to_line;
+
+      if( substr( $to_line, -1 ) == ',' )
+         $to_line = substr( $to_line, 0, strlen( $to_line ) - 1 );
+
+      return( $to_line );
    }
 
    function translateText(&$body, $wrap_at, $charset) {
       global $where, $what; // from searching
+      global $color; // color theme
+
+      require_once('../functions/url_parser.php');
 
-      if (!isset($url_parser_php)) {
-         include "../functions/url_parser.php";
-      }
-      
       $body_ary = explode("\n", $body);
+      $PriorQuotes = 0;
       for ($i=0; $i < count($body_ary); $i++) {
          $line = $body_ary[$i];
          if (strlen($line) - 2 >= $wrap_at) {
-            sqWordWrap($line, $wrap_at);  
+            sqWordWrap($line, $wrap_at);
          }
          $line = charset_decode($charset, $line);
          $line = str_replace("\t", '        ', $line);
-         
-         $line = str_replace(' ', '&nbsp;', $line);
-         $line = nl2br($line);
 
          parseUrl ($line);
-         
+
          $Quotes = 0;
          $pos = 0;
          while (1)
          {
-             if (strpos($line, '&nbsp;', $pos) === $pos)
+             if ($line[$pos] == ' ')
              {
-                $pos += 6;
+                $pos ++;
              }
              else if (strpos($line, '&gt;', $pos) === $pos)
              {
@@ -151,111 +208,113 @@
                  break;
              }
          }
-         
-         if ($Quotes > 1) {
-            $line = "<FONT COLOR=FF0000>$line</FONT>\n";
-         } else if ($Quotes) {
-            $line = "<FONT COLOR=800000>$line</FONT>\n";
-         }
 
-         if ($line)
-         {
-             $line = '<tt>' . $line . '</tt>';
-         }
-
-         $body_ary[$i] = $line . '<br>';
+         if ($Quotes > 1) {
+	    if (! isset($color[14]))
+	       $color[14] = '#FF0000';
+            $line = '<FONT COLOR="' . $color[14] . '">' . $line . '</FONT>';
+	 } elseif ($Quotes) {
+	    if (! isset($color[13]))
+	       $color[13] = '#800000';
+            $line = '<FONT COLOR="' . $color[13] . '">' . $line . '</FONT>';
+	 }
+
+         $body_ary[$i] = $line;
       }
-      $body = implode("\n", $body_ary);
+      $body = '<pre>' . implode("\n", $body_ary) . '</pre>';
    }
 
    /* SquirrelMail version number -- DO NOT CHANGE */
-   $version = "0.6pre1 (cvs)";
+   global $version;
+   $version = '1.2.0 [cvs]';
 
 
    function find_mailbox_name ($mailbox) {
-      $mailbox = trim($mailbox);
-      if (substr($mailbox, strlen($mailbox)-1, strlen($mailbox)) == "\"") {
-         $mailbox = substr($mailbox, 0, strlen($mailbox) - 1);
-         $pos = strrpos ($mailbox, "\"")+1;
-         $box = substr($mailbox, $pos);
-      } else {
-         $box = substr($mailbox, strrpos($mailbox, " ")+1, strlen($mailbox));
-      }
-      return $box;
-   }
-
-   function replace_spaces ($string) {
-      return str_replace(" ", "&nbsp;", $string);
-   }
+      if (ereg(" *\"([^\r\n\"]*)\"[ \r\n]*$", $mailbox, $regs))
+          return $regs[1];
+      ereg(" *([^ \r\n\"]*)[ \r\n]*$",$mailbox,$regs);
+      return $regs[1];
 
-   function replace_escaped_spaces ($string) {
-      return str_replace("&nbsp;", " ", $string);
    }
 
    function get_location () {
       # This determines the location to forward to relative
       # to your server.  If this doesnt work correctly for
-      # you (although it should), you can remove all this 
+      # you (although it should), you can remove all this
       # code except the last two lines, and change the header()
       # function to look something like this, customized to
       # the location of SquirrelMail on your server:
       #
       #   http://www.myhost.com/squirrelmail/src/login.php
-   
-      global $PHP_SELF, $SERVER_NAME, $HTTPS, $HTTP_HOST, $SERVER_PORT;
+
+      global $PHP_SELF, $SERVER_NAME, $HTTP_HOST, $SERVER_PORT,
+         $HTTP_SERVER_VARS;
 
       // Get the path
       $path = substr($PHP_SELF, 0, strrpos($PHP_SELF, '/'));
-   
+
       // Check if this is a HTTPS or regular HTTP request
-      $proto = "http://";
-      if(isset($HTTPS) && $HTTPS == 'on' ) {
-        $proto = "https://";
-      }
-   
-      $port = "";
-      if (isset($SERVER_PORT)) {
-        if ($SERVER_PORT != 80) {
-            $port = sprintf(':%d', $SERVER_PORT);
-        }
+      $proto = 'http://';
+      // If you have 'SSLOptions +StdEnvVars' in your apache config
+      // OR if you have HTTPS in your HTTP_SERVER_VARS
+      // OR if you are on port 443
+      $getEnvVar = getenv('HTTPS');
+      if ((isset($getEnvVar) && !strcasecmp($getEnvVar, 'on')) ||
+          (isset($HTTP_SERVER_VARS['HTTPS'])) ||
+	  (isset($HTTP_SERVER_VARS['SERVER_PORT']) &&
+	   $HTTP_SERVER_VARS['SERVER_PORT'] == 443)) {
+        $proto = 'https://';
       }
-          
+
       // Get the hostname from the Host header or server config.
-      // Fallback is to omit the server name and use a relative URI,
-      // although this is not RFC 2616 compliant.
-      if(isset($HTTP_HOST) && !empty($HTTP_HOST)) {
-        $location = $proto . $HTTP_HOST . $port . $path;
-      } else if(isset($SERVER_NAME) && !empty($SERVER_NAME)) {
-        $location = $proto . $SERVER_NAME . $port . $path;
-      } else {
-        $location = $path;
+      $host = '';
+      if (isset($HTTP_HOST) && !empty($HTTP_HOST))
+      {
+          $host = $HTTP_HOST;
+      }
+      else if (isset($SERVER_NAME) && !empty($SERVER_NAME))
+      {
+          $host = $SERVER_NAME;
       }
-      return $location;
-   }   
 
-   function sqStripSlashes($string) {
-      if (get_magic_quotes_gpc()) {
-         $string = stripslashes($string);
+      $port = '';
+      if (! strstr($host, ':'))
+      {
+          if (isset($SERVER_PORT)) {
+              if (($SERVER_PORT != 80 && $proto == 'http://')
+                      || ($SERVER_PORT != 443 && $proto == 'https://')) {
+                  $port = sprintf(':%d', $SERVER_PORT);
+              }
+          }
       }
-      return $string;
+
+      if ($host)
+          return $proto . $host . $port . $path;
+
+      // Fallback is to omit the server name and use a relative URI,
+      // although this is not RFC 2616 compliant.
+      return $path;
    }
 
 
    // These functions are used to encrypt the passowrd before it is
    // stored in a cookie.
-   function OneTimePadEncrypt ($string, $pad) {
+   function OneTimePadEncrypt ($string, $epad) {
+      $pad = base64_decode($epad);
+      $encrypted = '';
       for ($i = 0; $i < strlen ($string); $i++) {
-	 $encrypted .= chr (ord($string[$i]) ^ ord($pad[$i]));
+          $encrypted .= chr (ord($string[$i]) ^ ord($pad[$i]));
       }
 
       return base64_encode($encrypted);
    }
 
-   function OneTimePadDecrypt ($string, $pad) {
+   function OneTimePadDecrypt ($string, $epad) {
+      $pad = base64_decode($epad);
       $encrypted = base64_decode ($string);
-      
+      $decrypted = '';
       for ($i = 0; $i < strlen ($encrypted); $i++) {
-	 $decrypted .= chr (ord($encrypted[$i]) ^ ord($pad[$i]));
+          $decrypted .= chr (ord($encrypted[$i]) ^ ord($pad[$i]));
       }
 
       return $decrypted;
@@ -271,10 +330,10 @@
        // if mt_getrandmax() does not return a 2^n - 1 number,
        // this might not work well.  This uses $Max as a bitmask.
        $Max = mt_getrandmax();
-       
+
        if (! is_int($Val))
        {
-           if (function_exists("crc32"))
+           if (function_exists('crc32'))
            {
                $Val = crc32($Val);
            }
@@ -308,8 +367,8 @@
 
        mt_srand(($Val ^ mt_rand(0, $Max)) & $Max);
    }
-   
-   
+
+
    // This function initializes the random number generator fairly well.
    // It also only initializes it once, so you don't accidentally get
    // the same 'random' numbers twice in one session.
@@ -317,35 +376,44 @@
    {
       global $REMOTE_PORT, $REMOTE_ADDR, $UNIQUE_ID;
       static $randomized;
-      
+
       if ($randomized)
          return;
-      
-      // Global   
+
+      // Global
       sq_mt_seed((int)((double) microtime() * 1000000));
       sq_mt_seed(md5($REMOTE_PORT . $REMOTE_ADDR . getmypid()));
-      
+
       // getrusage
-      if (function_exists("getrusage")) {
-         $dat = getrusage();
-	 sq_mt_seed(md5($dat["ru_nswap"] . $dat["ru_majflt"] . 
-	    $dat["ru_utime.tv_sec"] . $dat["ru_utime.tv_usec"]));
+      if (function_exists('getrusage')) {
+         // Avoid warnings with Win32
+         $dat = @getrusage();
+	 if (isset($dat) && is_array($dat))
+	 {
+            $Str = '';
+            foreach ($dat as $k => $v)
+            {
+               $Str .= $k . $v;
+            }
+            sq_mt_seed(md5($Str));
+	 }
       }
-      
+
       // Apache-specific
       sq_mt_seed(md5($UNIQUE_ID));
-      
+
       $randomized = 1;
    }
-   
+
    function OneTimePadCreate ($length=100) {
       sq_mt_randomize();
-      
+
+      $pad = '';
       for ($i = 0; $i < $length; $i++) {
-	 $pad .= chr(mt_rand(0,255));
+          $pad .= chr(mt_rand(0,255));
       }
 
-      return $pad;
+      return base64_encode($pad);
    }
 
    // Check if we have a required PHP-version. Return TRUE if we do,
@@ -356,19 +424,19 @@
    function sqCheckPHPVersion($major, $minor, $release) {
 
       $ver = phpversion();
-      eregi("^([0-9]+)\.([0-9]+)(.*)", $ver, $regs);
+      eregi('^([0-9]+)\\.([0-9]+)(.*)', $ver, $regs);
 
       // Parse the version string
       $vmajor  = strval($regs[1]);
       $vminor  = strval($regs[2]);
       $vrel    = $regs[3];
-      if($vrel[0] == ".") 
-	 $vrel = strval(substr($vrel, 1));
-      if($vrel[0] == "b" || $vrel[0] == "B") 
-	 $vrel = - strval(substr($vrel, 1));
-      if($vrel[0] == "r" || $vrel[0] == "R") 
-	 $vrel = - strval(substr($vrel, 2))/10;
-      
+      if($vrel[0] == ".")
+          $vrel = strval(substr($vrel, 1));
+      if($vrel[0] == 'b' || $vrel[0] == 'B')
+          $vrel = - strval(substr($vrel, 1));
+      if($vrel[0] == 'r' || $vrel[0] == 'R')
+          $vrel = - strval(substr($vrel, 2))/10;
+
       // Compare major version
       if($vmajor < $major) return false;
       if($vmajor > $major) return true;
@@ -376,20 +444,79 @@
       // Major is the same. Compare minor
       if($vminor < $minor) return false;
       if($vminor > $minor) return true;
-      
+
       // Major and minor is the same as the required one.
       // Compare release
       if($vrel >= 0 && $release >= 0) {       // Neither are beta
-	 if($vrel < $release) return false;
+          if($vrel < $release) return false;
       } else if($vrel >= 0 && $release < 0){  // This is not beta, required is beta
-	 return true;
+          return true;
       } else if($vrel < 0 && $release >= 0){  // This is beta, require not beta
-	 return false;
+          return false;
       } else {                                // Both are beta
-	 if($vrel > $release) return false;
+          if($vrel > $release) return false;
       }
-      
+
       return true;
    }
 
-?>
+   /* Returns a string showing the size of the message/attachment */
+   function show_readable_size($bytes)
+   {
+       $bytes /= 1024;
+       $type = 'k';
+
+       if ($bytes / 1024 > 1)
+       {
+           $bytes /= 1024;
+           $type = 'm';
+       }
+
+       if ($bytes < 10)
+       {
+           $bytes *= 10;
+           settype($bytes, 'integer');
+           $bytes /= 10;
+       }
+       else
+           settype($bytes, 'integer');
+
+       return $bytes . '<small>&nbsp;' . $type . '</small>';
+   }
+
+   /* Generates a random string from the caracter set you pass in
+    *
+    * Flags:
+    *   1 = add lowercase a-z to $chars
+    *   2 = add uppercase A-Z to $chars
+    *   4 = add numbers 0-9 to $chars
+    */
+
+   function GenerateRandomString($size, $chars, $flags = 0)
+   {
+      if ($flags & 0x1)
+          $chars .= 'abcdefghijklmnopqrstuvwxyz';
+      if ($flags & 0x2)
+          $chars .= 'ABCDEFGHIJKLMNOPQRSTUVWXYZ';
+      if ($flags & 0x4)
+          $chars .= '0123456789';
+
+      if ($size < 1 || strlen($chars) < 1)
+          return '';
+
+      sq_mt_randomize(); // Initialize the random number generator
+
+      $String = "";
+      while (strlen($String) < $size) {
+         $String .= $chars[mt_rand(0, strlen($chars))];
+      }
+
+      return $String;
+   }
+
+   function quoteIMAP($str)
+   {
+       return ereg_replace('(["\\])', '\\\\1', $str);
+   }
+
+?>
\ No newline at end of file