include/misc.inc.php

   1 <?php
   2 /***************************************************************************
   3  *  Copyright (C) 2003-2008 Polytechnique.org                              *
   4  *  http://opensource.polytechnique.org/                                   *
   5  *                                                                         *
   6  *  This program is free software; you can redistribute it and/or modify   *
   7  *  it under the terms of the GNU General Public License as published by   *
   8  *  the Free Software Foundation; either version 2 of the License, or      *
   9  *  (at your option) any later version.                                    *
  10  *                                                                         *
  11  *  This program is distributed in the hope that it will be useful,        *
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of         *
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the          *
  14  *  GNU General Public License for more details.                           *
  15  *                                                                         *
  16  *  You should have received a copy of the GNU General Public License      *
  17  *  along with this program; if not, write to the Free Software            *
  18  *  Foundation, Inc.,                                                      *
  19  *  59 Temple Place, Suite 330, Boston, MA  02111-1307  USA                *
  20  ***************************************************************************/
  21
  22 function quoted_printable_encode($input, $line_max = 76)
  23 {
  24     $lines = preg_split("/(?:\r\n|\r|\n)/", $input);
  25     $eol = "\n";
  26     $linebreak = "=0D=0A=\n    ";
  27     $escape = "=";
  28     $output = "";
  29
  30     foreach ($lines as $j => $line) {
  31         $linlen = strlen($line);
  32         $newline = "";
  33         for($i = 0; $i < $linlen; $i++) {
  34             $c = $line{$i};
  35             $dec = ord($c);
  36             if ( ($dec == 32) && ($i == ($linlen - 1)) ) {
  37                 // convert space at eol only
  38                 $c = "=20";
  39             } elseif ( ($dec == 61) || ($dec < 32 ) || ($dec > 126) ) {
  40                 // always encode "\t", which is *not* required
  41                 $c = $escape.strtoupper(sprintf("%02x",$dec));
  42             }
  43             if ( (strlen($newline) + strlen($c)) >= $line_max ) { // CRLF is not counted
  44                 $output .= $newline.$escape.$eol;
  45                 $newline = "    ";
  46             }
  47             $newline .= $c;
  48         } // end of for
  49         $output .= $newline;
  50         if ($j<count($lines)-1) $output .= $linebreak;
  51     }
  52     return trim($output);
  53 }
  54
  55 /** genere une chaine aleatoire de 22 caracteres ou moins
  56  * @param $len longueur souhaitée, 22 par défaut
  57  * @return la chaine aleatoire qui contient les caractères [A-Za-z0-9+/]
  58  */
  59 function rand_token($len = 22)
  60 {
  61     $len = max(2, $len);
  62     $len = min(50, $len);
  63     $fp = fopen('/dev/urandom', 'r');
  64     // $len * 2 is certainly an overkill,
  65     // but HEY, reading 40 bytes from /dev/urandom is not that slow !
  66     $token = fread($fp, $len * 2);
  67     fclose($fp);
  68     $token = base64_encode($token);
  69     $token = preg_replace("![Il10O+/]!", "", $token);
  70     $token = substr($token,0,$len);
  71     return $token;
  72 }
  73
  74 /** genere une chaine aleatoire convenable pour une url
  75  * @param $len longueur souhaitée, 22 par défaut
  76  * @return la chaine aleatoire
  77  */
  78 function rand_url_id($len = 22)
  79 {
  80     return rand_token($len);
  81 }
  82
  83
  84 /** genere une chaine aleatoire convenable pour un mot de passe
  85  * @return la chaine aleatoire
  86  */
  87 function rand_pass()
  88 {
  89     return rand_token(8);
  90 }
  91
  92 /** Remove accent from a string and replace them by the nearest letter
  93  */
  94 global $lc_convert, $uc_convert;
  95 $lc_convert = array('é' => 'e', 'è' => 'e', 'ë' => 'e', 'ê' => 'e',
  96     'á' => 'a', 'à' => 'a', 'ä' => 'a', 'â' => 'a', 'å' => 'a', 'ã' => 'a',
  97     'ï' => 'i', 'î' => 'i', 'ì' => 'i', 'í' => 'i',
  98     'ô' => 'o', 'ö' => 'o', 'ò' => 'o', 'ó' => 'o', 'õ' => 'o', 'ø' => 'o',
  99     'ú' => 'u', 'ù' => 'u', 'û' => 'u', 'ü' => 'u',
 100     'ç' => 'c', 'ñ' => 'n');
 101 $uc_convert = array('É' => 'E', 'È' => 'E', 'Ë' => 'E', 'Ê' => 'E',
 102     'Á' => 'A', 'À' => 'A', 'Ä' => 'A', 'Â' => 'A', 'Å' => 'A', 'Ã' => 'A',
 103     'Ï' => 'I', 'Î' => 'I', 'Ì' => 'I', 'Í' => 'I',
 104     'Ô' => 'O', 'Ö' => 'O', 'Ò' => 'O', 'Ó' => 'O', 'Õ' => 'O', 'Ø' => 'O',
 105     'Ú' => 'U', 'Ù' => 'U', 'Û' => 'U', 'Ü' => 'U',
 106     'Ç' => 'C', 'Ñ' => 'N');
 107
 108 function replace_accent($string)
 109 {
 110     global $lc_convert, $uc_convert;
 111     $string = strtr($string, $lc_convert);
 112     return strtr($string, $uc_convert);
 113 }
 114
 115 /** creates a username from a first and last name
 116  *
 117  * @param $prenom the firstname
 118  * @param $nom the last name
 119  *
 120  * return STRING the corresponding username
 121  */
 122 function make_username($prenom,$nom)
 123 {
 124     /* on traite le prenom */
 125     $prenomUS=replace_accent(trim($prenom));
 126     $prenomUS=stripslashes($prenomUS);
 127
 128     /* on traite le nom */
 129     $nomUS=replace_accent(trim($nom));
 130     $nomUS=stripslashes($nomUS);
 131
 132     // calcul du login
 133     $username = strtolower($prenomUS.".".$nomUS);
 134     $username = str_replace(" ","-",$username);
 135     $username = str_replace("'","",$username);
 136     return $username;
 137 }
 138
 139 /* Un soundex en français posté par Frédéric Bouchery
 140    Voici une adaptation en PHP de la fonction soundex2 francisée de Frédéric BROUARD (http://sqlpro.developpez.com/Soundex/).
 141    C'est une bonne démonstration de la force des expressions régulières compatible Perl.
 142 trouvé sur http://expreg.com/voirsource.php?id=40&type=Chaines%20de%20caract%E8res */
 143 function soundex_fr($sIn)
 144 {
 145     static $convVIn, $convVOut, $convGuIn, $convGuOut, $accents;
 146     if (!isset($convGuIn)) {
 147         global $uc_convert, $lc_convert;
 148         $convGuIn  = array( 'GUI', 'GUE', 'GA', 'GO', 'GU', 'SCI', 'SCE', 'SC', 'CA', 'CO',
 149                             'CU', 'QU', 'Q', 'CC', 'CK', 'G', 'ST', 'PH');
 150         $convGuOut = array( 'KI', 'KE', 'KA', 'KO', 'K', 'SI', 'SE', 'SK', 'KA', 'KO',
 151                             'KU', 'K', 'K', 'K', 'K', 'J', 'T', 'F');
 152         $convVIn   = array( '/E?(AU)/', '/([EA])?[UI]([NM])([^EAIOUY]|$)/', '/[AE]O?[NM]([^AEIOUY]|$)/',
 153             '/[EA][IY]([NM]?[^NM]|$)/', '/(^|[^OEUIA])(OEU|OE|EU)([^OEUIA]|$)/', '/OI/',
 154             '/(ILLE?|I)/', '/O(U|W)/', '/O[NM]($|[^EAOUIY])/', '/(SC|S|C)H/',
 155             '/([^AEIOUY1])[^AEIOUYLKTPNR]([UAO])([^AEIOUY])/', '/([^AEIOUY]|^)([AUO])[^AEIOUYLKTP]([^AEIOUY1])/', '/^KN/',
 156             '/^PF/', '/C([^AEIOUY]|$)/',
 157             '/C/', '/Z$/', '/(?<!^)Z+/', '/ER$/', '/H/', '/W/');
 158         $convVOut  = array( 'O', '1\3', 'A\1',
 159             'E\1', '\1E\3', 'O',
 160             'Y', 'U', 'O\1', '9',
 161             '\1\2\3', '\1\2\3', 'N',
 162             'F', 'K\1',
 163             'S', 'SE', 'S', 'E', '', 'V');
 164         $accents = $uc_convert + $lc_convert;
 165         $accents['Ç'] = 'S';
 166         $accents['¿'] = 'E';
 167     }
 168     // Si il n'y a pas de mot, on sort immédiatement
 169     if ( $sIn === '' ) return '    ';
 170     // On supprime les accents
 171     $sIn = strtr( $sIn, $accents);
 172     // On met tout en minuscule
 173     $sIn = strtoupper( $sIn );
 174     // On supprime tout ce qui n'est pas une lettre
 175     $sIn = preg_replace( '`[^A-Z]`', '', $sIn );
 176     // Si la chaîne ne fait qu'un seul caractère, on sort avec.
 177     if ( strlen( $sIn ) === 1 ) return $sIn . '   ';
 178     // on remplace les consonnances primaires
 179     $sIn = str_replace( $convGuIn, $convGuOut, $sIn );
 180     // on supprime les lettres répétitives
 181     $sIn = preg_replace( '`(.)\1`', '$1', $sIn );
 182     // on réinterprète les voyelles
 183     $sIn = preg_replace( $convVIn, $convVOut, $sIn);
 184     // on supprime les terminaisons T, D, S, X (et le L qui précède si existe)
 185     $sIn = preg_replace( '`L?[TDX]S?$`', '', $sIn );
 186     // on supprime les E, A et Y qui ne sont pas en première position
 187     $sIn = preg_replace( '`(?!^)Y([^AEOU]|$)`', '\1', $sIn);
 188     $sIn = preg_replace( '`(?!^)[EA]`', '', $sIn);
 189     return substr( $sIn . '    ', 0, 4);
 190 }
 191
 192 /** met les majuscules au debut de chaque atome du prénom
 193  * @param $prenom le prénom à formater
 194  * return STRING le prénom avec les majuscules
 195  */
 196 function make_firstname_case($prenom)
 197 {
 198     $prenom = strtolower($prenom);
 199     $pieces = explode('-',$prenom);
 200
 201     foreach ($pieces as $piece) {
 202         $subpieces = explode("'",$piece);
 203         $usubpieces="";
 204         foreach ($subpieces as $subpiece)
 205             $usubpieces[] = ucwords($subpiece);
 206         $upieces[] = implode("'",$usubpieces);
 207     }
 208     return implode('-',$upieces);
 209 }
 210
 211
 212 function make_forlife($prenom, $nom, $promo)
 213 {
 214     $prenomUS = replace_accent(trim($prenom));
 215     $nomUS    = replace_accent(trim($nom));
 216
 217     $forlife = strtolower($prenomUS.".".$nomUS.".".$promo);
 218     $forlife = str_replace(" ","-",$forlife);
 219     $forlife = str_replace("'","",$forlife);
 220     return $forlife;
 221 }
 222
 223 /** Convert ip to uint (to store it in a database)
 224  */
 225 function ip_to_uint($ip)
 226 {
 227     $part = explode('.', $ip);
 228     if (count($part) != 4) {
 229         return null;
 230     }
 231     $v = 0;
 232     $fact = 0x1000000;
 233     for ($i = 0 ; $i < 4 ; ++$i) {
 234         $v += $fact * $part[$i];
 235         $fact >>= 8;
 236     }
 237     return $v;
 238 }
 239
 240 /** Convert uint to ip (to build a human understandable ip)
 241  */
 242 function uint_to_ip($uint)
 243 {
 244     return long2ip($uint);
 245 }
 246
 247 // vim:set et sw=4 sts=4 sws=4 foldmethod=marker enc=utf-8:
 248 ?>