functions/strings.php

   1 <?php
   2
   3    $strings_php = true;
   4
   5    //*************************************************************************
   6    // Count the number of occurances of $needle are in $haystack.
   7    //*************************************************************************
   8    function countCharInString($haystack, $needle) {
   9       $len = strlen($haystack);
  10       for ($i = 0; $i < $len; $i++) {
  11          if ($haystack[$i] == $needle)
  12             $count++;
  13       }
  14       return $count;
  15    }
  16
  17    //*************************************************************************
  18    // Read from the back of $haystack until $needle is found, or the begining
  19    //    of the $haystack is reached.
  20    //*************************************************************************
  21    function readShortMailboxName($haystack, $needle) {
  22       if (substr($haystack, -1) == $needle)
  23          $haystack = substr($haystack, 0, strlen($haystack) - 1);
  24
  25       if (strrpos($haystack, $needle)) {
  26          $pos = strrpos($haystack, $needle) + 1;
  27          $data = substr($haystack, $pos, strlen($haystack));
  28       } else {
  29          $data = $haystack;
  30       }
  31       return $data;
  32    }
  33
  34    // Searches for the next position in a string minus white space
  35    function next_pos_minus_white ($haystack, $pos) {
  36       while (substr($haystack, $pos, 1) == " " ||
  37              substr($haystack, $pos, 1) == "\t" ||
  38              substr($haystack, $pos, 1) == "\n" ||
  39              substr($haystack, $pos, 1) == "\r") {
  40          if ($pos >= strlen($haystack))
  41             return -1;
  42          $pos++;
  43       }
  44       return $pos;
  45    }
  46
  47    // Wraps text at $wrap characters
  48    function wordWrap($passed, $wrap) {
  49       $passed = str_replace("&gt;", ">", $passed);
  50       $passed = str_replace("&lt;", "<", $passed);
  51
  52       $words = explode(" ", trim($passed));
  53       $i = 0;
  54       $line_len = strlen($words[$i])+1;
  55       $line = "";
  56       while ($i < count($words)) {
  57          while ($line_len < $wrap) {
  58             $line = "$line$words[$i] ";
  59             $i++;
  60             $line_len = $line_len + strlen($words[$i])+1;
  61          }
  62          $line_len = strlen($words[$i])+1;
  63          if ($line_len < $wrap) {
  64             if ($i < count($words)) // don't <BR> the last line
  65                $line = "$line\n";
  66          } else {
  67             $endline = $words[$i];
  68             while ($line_len >= $wrap) {
  69                $bigline = substr($endline, 0, $wrap);
  70                $endline = substr($endline, $wrap, strlen($endline));
  71                $line_len = strlen($endline);
  72                $line = "$line$bigline<BR>";
  73             }
  74             $line = "$line$endline<BR>";
  75             $i++;
  76          }
  77       }
  78
  79       $line = str_replace(">", "&gt;", $line);
  80       $line = str_replace("<", "&lt;", $line);
  81       return $line;
  82    }
  83
  84    /** Returns an array of email addresses **/
  85    function parseAddrs($text) {
  86       if (trim($text) == "") {
  87          return;
  88       }
  89       $text = str_replace(" ", "", $text);
  90       $text = ereg_replace( '"[^"]*"', "", $text);
  91       $text = str_replace(",", ";", $text);
  92       $array = explode(";", $text);
  93                 for ($i = 0; $i < count ($array); $i++) {
  94                         $array[$i] = eregi_replace ("^.*\<", "", $array[$i]);
  95                         $array[$i] = eregi_replace ("\>.*$", "", $array[$i]);
  96                 }
  97       return $array;
  98    }
  99
 100    /** Returns a line of comma separated email addresses from an array **/
 101    function getLineOfAddrs($array) {
 102       $to_line = "";
 103       for ($i = 0; $i < count($array); $i++) {
 104          if ($to_line)
 105             $to_line = "$to_line, $array[$i]";
 106          else
 107             $to_line = "$array[$i]";
 108       }
 109       return $to_line;
 110    }
 111
 112    function translateText($body, $wrap_at, $charset) {
 113       include ("../functions/url_parser.php");
 114       /** Add any parsing you want to in here */
 115       $body_ary = explode("\n", $body);
 116
 117       for ($i = 0; $i < count($body_ary); $i++) {
 118          $line = $body_ary[$i];
 119          $line = "^^$line";
 120
 121          //$line = str_replace(">", "&gt;", $line);
 122          //$line = str_replace("<", "&lt;", $line);
 123          //$line = htmlspecialchars($line);
 124
 125          if (strlen($line) >= $wrap_at) // -2 because of the ^^ at the beginning
 126             $line = wordWrap($line, $wrap_at);
 127
 128          $line = charset_decode($charset, $line);
 129
 130          $line = str_replace(" ", "&nbsp;", $line);
 131          $line = str_replace("\t", "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;", $line);
 132          $line = nl2br($line);
 133
 134          if (strpos(trim(str_replace("&nbsp;", "", $line)), "&gt;&gt;") == 2) {
 135             $line = substr($line, 2, strlen($line));
 136             $line = "<TT><FONT COLOR=FF0000>$line</FONT></TT><BR>\n";
 137          } else if (strpos(trim(str_replace("&nbsp;", "", $line)), "&gt;") == 2) {
 138             $line = substr($line, 2, strlen($line));
 139             $line = "<TT><FONT COLOR=800000>$line</FONT></TT><BR>\n";
 140          } else {
 141             $line = substr($line, 2, strlen($line));
 142             $line = "<TT><FONT COLOR=000000>$line</FONT></TT><BR>\n";
 143          }
 144
 145          $line = parseEmail ($line);
 146          $line = parseUrl ($line);
 147          $new_body[$i] = "$line";
 148       }
 149       $bdy = implode("\n", $new_body);
 150       return $bdy;
 151    }
 152
 153    /* SquirrelMail version number -- DO NOT CHANGE */
 154    $version = "0.5pre1";
 155
 156
 157    function find_mailbox_name ($mailbox) {
 158       $mailbox = trim($mailbox);
 159       if (substr($mailbox, strlen($mailbox)-1, strlen($mailbox)) == "\"") {
 160          $mailbox = substr($mailbox, 0, strlen($mailbox) - 1);
 161          $pos = strrpos ($mailbox, "\"")+1;
 162          $box = substr($mailbox, $pos);
 163       } else {
 164          $box = substr($mailbox, strrpos($mailbox, " ")+1, strlen($mailbox));
 165       }
 166       return $box;
 167    }
 168
 169    function replace_spaces ($string) {
 170       return str_replace(" ", "&nbsp;", $string);
 171    }
 172
 173    function replace_escaped_spaces ($string) {
 174       return str_replace("&nbsp;", " ", $string);
 175    }
 176
 177    function get_location () {
 178       # This determines the location to forward to relative
 179       # to your server.  If this doesn't work correctly for
 180       # you (although it should), you can remove all this
 181       # code except the last two lines, and change the header()
 182       # function to look something like this, customized to
 183       # the location of SquirrelMail on your server:
 184       #
 185       #   http://www.myhost.com/squirrelmail/src/login.php
 186
 187       global $PHP_SELF, $SERVER_NAME, $HTTPS, $HTTP_HOST;
 188
 189       // Get the path
 190       $path = substr($PHP_SELF, 0, strrpos($PHP_SELF, '/'));
 191
 192       // Check if this is a HTTPS or regular HTTP request
 193       $proto = "http://";
 194       if(isset($HTTPS) && $HTTPS == 'on' ) {
 195         $proto = "https://";
 196       }
 197
 198       // Get the hostname from the Host header or server config.
 199       // Fallback is to omit the server name and use a relative URI,
 200       // although this is not RFC 2616 compliant.
 201       if(isset($HTTP_HOST) && !empty($HTTP_HOST)) {
 202         $location = $proto . $HTTP_HOST . $path;
 203       } else if(isset($SERVER_NAME) && !empty($SERVER_NAME)) {
 204         $location = $proto . $SERVER_NAME . $path;
 205       } else {
 206         $location = $path;
 207       }
 208       return $location;
 209    }
 210 ?>