include/geoloc.inc.php

   1 <?php
   2 /***************************************************************************
   3  *  Copyright (C) 2003-2006 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 // {{{ liste les pays ou les régions d'un pays
  23 /** donne la liste déroulante des pays
  24  * @param $current pays actuellement selectionné
  25  */
  26 function geoloc_country($current) {
  27     $res  = XDB::iterRow('SELECT a2,pays FROM geoloc_pays ORDER BY pays');
  28     $html = "";
  29     while (list($my_id, $my_pays) = $res->next()) {
  30         $html .= sprintf("<option value=\"%s\" %s>%s</option>\n",
  31                 $my_id, ($current==$my_id?"selected='selected'":""), $my_pays);
  32     }
  33     return $html;
  34 }
  35
  36 function _geoloc_country_smarty($params){
  37   if(!isset($params['country']))
  38     return;
  39   return geoloc_country($params['country']);
  40 }
  41 $GLOBALS['page']->register_function('geoloc_country', '_geoloc_country_smarty');
  42
  43 /** donne la liste deroulante des regions pour un pays
  44  * @param $pays le pays dont on veut afficher les regions
  45  * @param $current la region actuellement selectionnee
  46  */
  47 function geoloc_region($country,$current) {
  48     $res  = XDB::iterRow('SELECT region,name FROM geoloc_region where a2={?} ORDER BY name', $country);
  49     $html = "<option value=\"\"></option>";
  50     while (list($regid, $regname) = $res->next()) {
  51         $html .= sprintf("<option value=\"%s\" %s>%s</option>\n",
  52                 $regid, ($current==$regid?"selected='selected'":""), $regname);
  53     }
  54     return $html;
  55
  56 }
  57 function _geoloc_region_smarty($params){
  58   if(!isset($params['country']))
  59     return;
  60   if(!isset($params['region']))
  61     return;
  62   return geoloc_region($params['country'], $params['region']);
  63 }
  64 $GLOBALS['page']->register_function('geoloc_region', '_geoloc_region_smarty');
  65 // }}}
  66
  67 // {{{ get_address_infos($txt)
  68 /** retrieve the infos on a text address
  69  * store on the fly the info of the city concerned
  70  * @param $txt the raw text of an address
  71  */
  72 function get_address_infos($txt) {
  73     global $globals;
  74     $url = $globals->geoloc->webservice_url."address.php?precise=1&txt=".urlencode(utf8_encode($txt));
  75     if (!($f = @fopen($url, 'r'))) return false;
  76     $keys = explode('|',fgets($f));
  77     $vals = explode('|',fgets($f));
  78     $infos = array();
  79     foreach ($keys as $i=>$key) if($vals[$i]) $infos[$key] = ($key == 'sql')?$vals[$i]:utf8_decode(strtr($vals[$i], array(chr(197).chr(147) => "&oelig;")));
  80     if ($infos['sql'])
  81        XDB::execute("REPLACE INTO geoloc_city VALUES ".$infos['sql']);
  82     if ($infos['display'])
  83        XDB::execute("UPDATE geoloc_pays SET display = {?} WHERE a2 = {?}", $infos['display'], $infos['country']);
  84     return $infos;
  85 }
  86 // }}}
  87
  88 // {{{ get_cities_maps($array)
  89 /* get all the maps id of the cities contained in an array */
  90 function get_cities_maps($array)
  91 {
  92     global $globals;
  93     implode("\n",$array);
  94     $url = $globals->geoloc->webservice_url."findMaps.php?datatext=".urlencode(utf8_encode(implode("\n", $array)));
  95     if (!($f = @fopen($url, 'r'))) return false;
  96     $maps = array();
  97     while (!feof($f))
  98     {
  99         $l = trim(fgets($f));
 100         $tab = explode(';', $l);
 101         $i = $tab[0];
 102         unset($tab[0]);
 103         $maps[$i] = $tab;
 104     }
 105     return $maps;
 106 }
 107 // }}}
 108
 109 // {{{ get_new_maps($url)
 110 /** set new maps from url **/
 111 function get_new_maps($url)
 112 {
 113     if (!($f = @fopen($url, 'r'))) {
 114         return false;
 115     }
 116     XDB::query('TRUNCATE TABLE geoloc_maps');
 117     $s = '';
 118     while (!feof($f)) {
 119         $l = fgetcsv($f, 1024, ';', '"');
 120         foreach ($l as $i => $val) {
 121             if ($val != 'NULL') {
 122                 $l[$i] = '\''.addslashes($val).'\'';
 123             }
 124         }
 125         $s .= ',('.implode(',',$l).')';
 126     }
 127     XDB::execute('INSERT INTO geoloc_maps VALUES '.substr($s, 1));
 128     return true;
 129 }
 130 // }}}
 131
 132 // {{{ get_address_text($adr)
 133 /** make the text of an address that can be read by a mailman
 134  * @param $adr an array with all the usual fields
 135  */
 136 function get_address_text($adr) {
 137     $t = "";
 138     if ($adr['adr1']) $t.= $adr['adr1'];
 139     if ($adr['adr2']) $t.= "\n".$adr['adr2'];
 140     if ($adr['adr3']) $t.= "\n".$adr['adr3'];
 141     $l = "";
 142     if ($adr['display']) {
 143         $keys = explode(' ', $adr['display']);
 144         foreach ($keys as $key) {
 145             if (isset($adr[$key]))
 146                 $l .= " ".$adr[$key];
 147             else
 148                 $l .= " ".$key;
 149         }
 150         if ($l) $l = substr($l, 1);
 151     }
 152     else
 153     {
 154         if ($adr['country'] == 'US' || $adr['country'] == 'CA' || $adr['country'] == 'GB') {
 155             if ($adr['city']) $l .= $adr['city'].",\n";
 156             if ($adr['region']) $l .= $adr['region']." ";
 157             if ($adr['postcode']) $l .= $adr['postcode'];
 158         } else {
 159             if ($adr['postcode']) $l .= $adr['postcode']." ";
 160             if ($adr['city']) $l .= $adr['city'];
 161         }
 162     }
 163     if ($l) $t .= "\n".trim($l);
 164     if ($adr['country'] != '00' && (!$adr['countrytxt'] || $adr['countrytxt'] == strtoupper($adr['countrytxt']))) {
 165         $res = XDB::query("SELECT pays FROM geoloc_pays WHERE a2 = {?}", $adr['country']);
 166         $adr['countrytxt'] = $res->fetchOneCell();
 167     }
 168     if ($adr['countrytxt']) $t .= "\n".$adr['countrytxt'];
 169     return trim($t);
 170 }
 171 // }}}
 172
 173 // {{{ compare_addresses_text($a, $b)
 174 /** compares if two address matches
 175  * @param $a the raw text of an address
 176  * @param $b the raw text of a complete valid address
 177  */
 178 function compare_addresses_text($a, $b) {
 179     $ta = strtoupper(preg_replace(array("/[0-9,\"'#~:;_\- ]/", "/\r\n/"), array("", "\n"), $a));
 180     $tb = strtoupper(preg_replace(array("/[0-9,\"'#~:;_\- ]/", "/\r\n/"), array("", "\n"), $b));
 181
 182     $la = explode("\n", $ta);
 183     $lb = explode("\n", $tb);
 184
 185     if (count($lb) > count($la) + 1) return false;
 186     foreach ($la as $i=>$l) if (levenshtein($l, $lb[$i]) > 3) return false;
 187     return true;
 188 }
 189
 190 // }}}
 191
 192 function empty_address() {
 193     return Array(
 194         "adr1" => "",
 195         "adr2" => "",
 196         "adr3" => "",
 197         "cityid" => NULL,
 198         "city" => "",
 199         "postcode" => "",
 200         "region" => "",
 201         "regiontxt" => "",
 202         "country" => "00",
 203         "countrytxt" => "");
 204 }
 205
 206 // create a simple address from a text without geoloc
 207 function cut_address($txt) {
 208     $txt = str_replace("\r\n", "\n", $txt);
 209     ereg("^([^\n]*)(\n([^\n]*)(\n(.*))?)?$", trim($txt), $a);
 210     return array("adr1" => trim($a[1]), "adr2" => trim($a[3]), "adr3" => trim(str_replace("\n", " ", $a[5])));
 211 }
 212
 213 // {{{ localize_addresses($uid)
 214 /* localize all the address of a user and modify the database
 215  * if the new address match with the old one
 216  * @param $uid the id of the user
 217  */
 218 function localize_addresses($uid) {
 219     $res = XDB::iterator("SELECT * FROM adresses WHERE uid = {?} and (cityid IS NULL OR cityid = 0)", $uid);
 220     $erreur = Array();
 221
 222     while ($a = $res->next()) {
 223         $new = get_address_infos($ta = get_address_text($a));
 224         if (compare_addresses_text($ta, get_address_text($new))) {
 225             XDB::execute("UPDATE adresses SET
 226                 adr1 = {?}, adr2 = {?}, adr3 = {?},
 227                 cityid = {?}, city = {?}, postcode = {?},
 228                 region = {?}, regiontxt = {?}, country = {?},
 229                 glat = {?}, glng = {?}
 230                 WHERE uid = {?} AND adrid = {?}",
 231                 $new['adr1'], $new['adr2'], $new['adr3'],
 232                 $new['cityid'], $new['city'], $new['postcode'],
 233                 $new['region'], $new['regiontxt'], $new['country'],
 234                 $new['precise_lat'], $new['precise_lon'],
 235                 $uid, $a['adrid']);
 236                 $new['store'] = true;
 237                 if (!$new['cityid']) $erreur[$a['adrid']] = $new;
 238         } else {
 239             $new['store'] = false;
 240             $erreur[$a['adrid']] = $new;
 241         }
 242     }
 243     return $erreur;
 244 }
 245 // }}}
 246
 247 // {{{ synchro_city($id)
 248 /** synchronise the local geoloc_city base to geoloc.org
 249  * @param $id the id of the city to synchronize
 250  */
 251  function synchro_city($id) {
 252     global $globals;
 253     $url = $globals->geoloc->webservice_url."cityFinder.php?method=id&id=".$id."&out=sql";
 254     if (!($f = @fopen($url, 'r'))) return false;
 255     $s = fgets($f);
 256     if ($s)
 257         return XDB::execute("REPLACE INTO geoloc_city VALUES ".$s) > 0;
 258  }
 259  // }}}
 260
 261 // {{{ function fix_cities_not_on_map($limit)
 262 function fix_cities_not_on_map($limit=false)
 263 {
 264     $missing = XDB::query("SELECT c.id FROM geoloc_city AS c LEFT JOIN geoloc_city_in_maps AS m ON(c.id = m.city_id) WHERE m.city_id IS NULL".($limit?" LIMIT $limit":""));
 265     $maps = get_cities_maps($missing->fetchColumn());
 266     if ($maps)
 267     {
 268         $values = "";
 269         foreach ($maps as $cityid => $maps_c)
 270             foreach ($maps_c as $map_id)
 271                 $values .= ",($cityid, $map_id, '')";
 272         XDB::execute("REPLACE INTO geoloc_city_in_maps VALUES ".substr($values, 1));
 273     }
 274     else
 275         return false;
 276     return true;
 277 }
 278
 279 function set_smallest_levels() {
 280     $maxlengths = XDB::iterRow("SELECT MAX(LENGTH(gm.path)), gcim.city_id
 281         FROM geoloc_city_in_maps AS gcim
 282         INNER JOIN geoloc_maps AS gm
 283         USING ( map_id )
 284         GROUP BY gcim.city_id
 285         ");
 286     while (list($length, $id) = $maxlengths->next()) {
 287         XDB::execute("UPDATE geoloc_city_in_maps AS gcim
 288             INNER JOIN geoloc_maps AS gm USING(map_id)
 289             SET gcim.infos = IF(LENGTH(gm.path) = {?}, 'smallest', '')
 290             WHERE gcim.city_id = {?}", $length, $id);
 291     }
 292     return true;
 293 }
 294 // }}}
 295
 296
 297 function geoloc_to_x($lon, $lat) { return deg2rad(1) * $lon *100; }
 298
 299 function geoloc_to_y($lon, $lat) {
 300         if ($lat < -75) return latToY(-75);
 301         if ($lat > 75) return latToY(75);
 302   return -100 * log(tan(pi()/4 + deg2rad(1)/2*$lat));
 303 }
 304
 305 function size_of_city($nb) { $s = round(log($nb + 1)*2,2); if ($s < 1) return 1; return $s; }
 306 function size_of_territory($nb) { return size_of_city($nb); }
 307
 308 function geoloc_getData_subcities($mapid, $SFields, &$cities, $direct=true) {
 309     for ($i_mapfield=0; $i_mapfield < count($SFields) ; $i_mapfield++) if ($SFields[$i_mapfield]->fieldFormName == 'mapid') break;
 310     $SFields[$i_mapfield] = new MapSField('mapid', array('gcim.map_id'), array('adresses','geoloc_city_in_maps'), array('am','gcim'), array(getadr_join('am'), 'am.cityid = gcim.city_id'), $mapid);
 311
 312     $fields = new SFieldGroup(true, $SFields);
 313     $where = $fields->get_where_statement();
 314     if ($where) $where = " AND ".$where;
 315
 316     $cityres = XDB::iterator("
 317         SELECT  gc.id,
 318                 gc.lon / 100000 AS x, gc.lat/100000 AS y,
 319                 gc.name,
 320                 COUNT(u.user_id) AS pop,
 321                 SUM(u.promo % 2) AS yellow
 322           FROM auth_user_md5 AS u
 323     INNER JOIN auth_user_quick AS q ON(u.user_id = q.user_id)
 324             ".$fields->get_select_statement()."
 325                                  LEFT JOIN geoloc_city AS gc ON(gcim.city_id = gc.id)
 326          WHERE ".($direct?"gcim.infos = 'smallest'":"1")."
 327          $where
 328       GROUP BY gc.id,gc.alias ORDER BY pop DESC");
 329     while ($c = $cityres->next())
 330         if ($c['pop'] > 0)
 331         {
 332             $city = $c;
 333             $city['x'] = geoloc_to_x($c['x'], $c['y']);
 334             $city['y'] = geoloc_to_y($c['x'], $c['y']);
 335             $city['size'] = size_of_city($c['pop']);
 336             $cities[$c['id']] = $city;
 337         }
 338 }
 339
 340 function geoloc_getData_subcountries($mapid, $SFields, $minentities) {
 341     $countries = array();
 342     $cities = array();
 343
 344     if ($mapid === false)
 345         $wheremapid = "WHERE gm.parent IS NULL";
 346     else
 347         $wheremapid = "WHERE   gm.parent = {?}";
 348     $submapres = XDB::iterator(
 349         "SELECT  gm.map_id AS id, gm.name, gm.x, gm.y, gm.xclip, gm.yclip,
 350                 gm.width, gm.height, gm.scale, 1 AS rat
 351         FROM    geoloc_maps AS gm
 352         ".$wheremapid, Env::v('mapid',''));
 353
 354     global $globals;
 355
 356     while ($c = $submapres->next())
 357     {
 358         $country = $c;
 359         $country['name'] = utf8_decode($country['name']);
 360         $country['color'] = 0xFFFFFF;
 361         $country['swf'] = $globals->geoloc->webservice_url."maps/mercator/map_".$c['id'].".swf";
 362         $countries[$c['id']] = $country;
 363     }
 364
 365     if ($mapid === false) return array($countries, $cities);
 366
 367         geoloc_getData_subcities(Env::i('mapid'), $SFields, $cities);
 368         $nbcities = count($cities);
 369         $nocity = $nbcities == 0;
 370
 371     for ($i_mapfield=0; $i_mapfield < count($SFields) ; $i_mapfield++) if ($SFields[$i_mapfield]->fieldFormName == 'mapid') break;
 372         $SFields[$i_mapfield] = new MapSField('mapid', array('map.parent'), array('adresses','geoloc_city_in_maps','geoloc_maps'), array('am','gcim','map'), array(getadr_join('am'), 'am.cityid = gcim.city_id', 'map.map_id = gcim.map_id'));
 373
 374         $fields = new SFieldGroup(true, $SFields);
 375         $where = $fields->get_where_statement();
 376         if ($where) $where = " WHERE ".$where;
 377
 378         $countryres = XDB::iterator("
 379             SELECT  map.map_id AS id,
 380                     COUNT(u.user_id) AS nbPop,
 381                     SUM(u.promo % 2) AS yellow,
 382                     COUNT(DISTINCT gcim.city_id) AS nbCities,
 383                     SUM(IF(u.user_id IS NULL,0,am.glng)) AS lonPop,
 384                     SUM(IF(u.user_id IS NULL, 0,am.glat)) AS latPop
 385               FROM  auth_user_md5 AS u
 386         INNER JOIN  auth_user_quick AS q ON(u.user_id = q.user_id)
 387                     ".$fields->get_select_statement()."
 388              $where
 389           GROUP BY  map.map_id ORDER BY NULL", $hierarchy);
 390
 391         $maxpop = 0;
 392         $nbentities = $nbcities + $countryres->total();
 393         while ($c = $countryres->next())
 394         {
 395             $c['latPop'] /= $c['nbPop'];
 396             $c['lonPop'] /= $c['nbPop'];
 397             $c['rad'] = size_of_territory($c['nbPop']);
 398             if ($maxpop < $c['nbPop']) $maxpop = $c['nbPop'];
 399             $c['xPop'] = geoloc_to_x($c['lonPop'], $c['latPop']);
 400             $c['yPop'] = geoloc_to_y($c['lonPop'], $c['latPop']);
 401             $countries[$c['id']] = array_merge($countries[$c['id']], $c);
 402
 403             $nbcities += $c['nbCities'];
 404         }
 405
 406         if ($nocity && $nbcities < $minentities)
 407         {
 408             foreach($countries as $i => $c)
 409             {
 410                 $countries[$i]['nbPop'] = 0;
 411                 if ($c['nbCities'] > 0)
 412                     geoloc_getData_subcities($c['id'], $SFields, $cities, false);
 413             }
 414         }
 415
 416         foreach ($countries as $i => $c) if ($c['nbPop'] > 0)
 417         {
 418             $lambda = pow($c['nbPop'] / $maxpop,0.3);
 419             $countries[$i]['color'] = 0x0000FF + round((1-$lambda) * 0xFF)*0x010100;
 420         }
 421
 422     return array($countries, $cities);
 423 }
 424 // }}}
 425
 426 // vim:set et sw=4 sts=4 sws=4 foldmethod=marker:
 427 ?>