include/geoloc.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 // {{{ 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, $avail_only = false)
  27 {
  28     if ($avail_only) {
  29         $res = XDB::iterRow('SELECT  g.a2, g.pays
  30                                FROM  geoloc_pays AS g
  31                          INNER JOIN  adresses    AS a ON(a.country = g.a2)
  32                            GROUP BY  g.a2
  33                            ORDER BY  g.pays');
  34     } else {
  35         $res = XDB::iterRow('SELECT a2,pays FROM geoloc_pays ORDER BY pays');
  36     }
  37     $html = "";
  38     while (list($my_id, $my_pays) = $res->next()) {
  39         $html .= sprintf("<option value=\"%s\" %s>%s</option>\n",
  40                          $my_id, ($current==$my_id?"selected='selected'":""), $my_pays);
  41     }
  42     return $html;
  43 }
  44
  45 /** donne la liste deroulante des regions pour un pays
  46  * @param $pays le pays dont on veut afficher les regions
  47  * @param $current la region actuellement selectionnee
  48  */
  49 function geoloc_region($country, $current, $avail_only = false)
  50 {
  51     if ($avail_only) {
  52         $res = XDB::iterRow('SELECT  r.region, r.name
  53                                FROM  geoloc_region AS r
  54                          INNER JOIN  adresses      AS a ON (a.country = r.a2 AND a.region = r.region)
  55                               WHERE  r.a2 = {?}
  56                            GROUP BY  r.region
  57                            ORDER BY  r.name', $country);
  58     } else {
  59         $res = XDB::iterRow('SELECT  region,name
  60                                FROM  geoloc_region
  61                               WHERE  a2 = {?}
  62                            ORDER BY  name', $country);
  63     }
  64     $html = "<option value=\"\"></option>";
  65     while (list($regid, $regname) = $res->next()) {
  66         $html .= sprintf("<option value=\"%s\" %s>%s</option>\n",
  67                  $regid, ($current==$regid?"selected='selected'":""), $regname);
  68     }
  69     return $html;
  70 }
  71 // }}}
  72
  73 // {{{ get_address_infos($txt)
  74 /** retrieve the infos on a text address
  75  * store on the fly the info of the city concerned
  76  * @param $txt the raw text of an address
  77  */
  78 function get_address_infos($txt)
  79 {
  80     global $globals;
  81     $url = $globals->geoloc->webservice_url."address.php?precise=1&txt=" . urlencode($txt);
  82     if (!($f = @fopen($url, 'r'))) return false;
  83     $keys = explode('|',fgets($f));
  84     $vals = explode('|',fgets($f));
  85     $infos = empty_address();
  86     foreach ($keys as $i=>$key) {
  87         if($vals[$i]) {
  88             if ($key == 'sql') {
  89                 $infos[$key] = $vals[$i];
  90             } else {
  91                 $val = strtr($vals[$i], array(chr(197).chr(147) => "&oelig;"));
  92                 $infos[$key] = $val;
  93             }
  94         }
  95     }
  96     if (empty($infos['country'])) {
  97         $infos['country'] = '00';
  98     }
  99     if (isset($infos['sql']) && $infos['sql']) {
 100         $sql = explode(', ', trim($infos['sql'], '()'));
 101         if (count($sql) == 16) {
 102             for ($i = 0 ; $i < 16 ; ++$i) {
 103                 $sql[$i] = stripslashes(trim($sql[$i], ' \''));
 104             }
 105             XDB::execute("REPLACE INTO  geoloc_city
 106                                 VALUES  ({?}, {?}, {?}, {?}, {?}, {?},
 107                                          {?}, {?}, {?}, {?}, {?}, {?},
 108                                          {?}, {?}, {?}, {?})",
 109                          $sql[0], $sql[1], $sql[2], $sql[3], $sql[4], $sql[5],
 110                          $sql[6], $sql[7], $sql[8], $sql[9], $sql[10], $sql[11],
 111                          $sql[12], $sql[13], $sql[14], $sql[15]);
 112         }
 113     }
 114     if (isset($infos['display']) && $infos['display'])
 115         XDB::execute("UPDATE  geoloc_pays
 116                          SET  display = {?}
 117                        WHERE  a2 = {?}", $infos['display'], $infos['country']);
 118     if (isset($infos['cityid'])) {
 119         fix_cities_not_on_map(1, $infos['cityid']);
 120         if (floatval($infos['precise_lat']) && floatval($infos['precise_lon'])) {
 121             $res = XDB::query("SELECT  c.lat / 100000, c.lon / 100000
 122                                  FROM  geoloc_city AS c
 123                                 WHERE  c.id = {?}", $infos['cityid']);
 124             if ($res->numRows()) {
 125                 list($glat, $glng) = $res->fetchOneRow();
 126                 $infos['precise_lat'] = $glat;
 127                 $infos['precise_lon'] = $glng;
 128             }
 129         }
 130     }
 131     return $infos;
 132 }
 133 // }}}
 134
 135 // {{{ get_cities_maps($array)
 136 /* get all the maps id of the cities contained in an array */
 137 function get_cities_maps($array)
 138 {
 139     global $globals;
 140     implode("\n",$array);
 141     $url = $globals->geoloc->webservice_url."findMaps.php?datatext=".urlencode(implode("\n", $array));
 142     if (!($f = @fopen($url, 'r'))) return false;
 143     $maps = array();
 144     while (!feof($f))
 145     {
 146         $l = trim(fgets($f));
 147         $tab = explode(';', $l);
 148         $i = $tab[0];
 149         unset($tab[0]);
 150         $maps[$i] = $tab;
 151     }
 152     return $maps;
 153 }
 154 // }}}
 155
 156 // {{{ get_new_maps($url)
 157 /** set new maps from url **/
 158 function get_new_maps($url)
 159 {
 160     if (!($f = @fopen($url, 'r'))) {
 161         return false;
 162     }
 163     XDB::query('TRUNCATE TABLE geoloc_maps');
 164     $s = '';
 165     while (!feof($f)) {
 166         $l = fgetcsv($f, 1024, ';', '"');
 167         foreach ($l as $i => $val) {
 168             if ($val != 'NULL') {
 169                 $l[$i] = '\''.addslashes($val).'\'';
 170             }
 171         }
 172         $s .= ',('.implode(',',$l).')';
 173     }
 174     XDB::execute('INSERT INTO geoloc_maps VALUES '.substr($s, 1));
 175     return true;
 176 }
 177 // }}}
 178
 179 // {{{ get_address_text($adr)
 180 /** make the text of an address that can be read by a mailman
 181  * @param $adr an array with all the usual fields
 182  */
 183 function get_address_text($adr)
 184 {
 185     $t = "";
 186     if (isset($adr['adr1']) && $adr['adr1']) $t.= $adr['adr1'];
 187     if (isset($adr['adr2']) && $adr['adr2']) $t.= "\n".$adr['adr2'];
 188     if (isset($adr['adr3']) && $adr['adr3']) $t.= "\n".$adr['adr3'];
 189     $l = "";
 190     if (isset($adr['display']) && $adr['display']) {
 191         $keys = explode(' ', $adr['display']);
 192         foreach ($keys as $key) {
 193             if (isset($adr[$key])) {
 194                 $l .= " ".$adr[$key];
 195             } else {
 196                 $l .= " ".$key;
 197             }
 198         }
 199         if ($l) substr($l, 1);
 200     } elseif ($adr['country'] == 'US' || $adr['country'] == 'CA' || $adr['country'] == 'GB') {
 201         if ($adr['city']) $l .= $adr['city'].",\n";
 202         if ($adr['region']) $l .= $adr['region']." ";
 203         if ($adr['postcode']) $l .= $adr['postcode'];
 204     } else {
 205         if (isset($adr['postcode']) && $adr['postcode']) $l .= $adr['postcode']." ";
 206         if (isset($adr['city']) && $adr['city']) $l .= $adr['city'];
 207     }
 208     if ($l) $t .= "\n".trim($l);
 209     if ($adr['country'] != '00' && (!$adr['countrytxt'] || $adr['countrytxt'] == strtoupper($adr['countrytxt']))) {
 210         $res = XDB::query("SELECT pays FROM geoloc_pays WHERE a2 = {?}", $adr['country']);
 211         $adr['countrytxt'] = $res->fetchOneCell();
 212     }
 213     if (isset($adr['countrytxt']) && $adr['countrytxt']) {
 214         $t .= "\n".$adr['countrytxt'];
 215     }
 216     return trim($t);
 217 }
 218 // }}}
 219
 220 // {{{ compare_addresses_text($a, $b)
 221 /** compares if two address matches
 222  * @param $a the raw text of an address
 223  * @param $b the raw text of a complete valid address
 224  */
 225 function compare_addresses_text($a, $b)
 226 {
 227     $ta = strtoupper(preg_replace(array("/[0-9,\"'#~:;_\- ]/", "/\r\n/"), array("", "\n"), $a));
 228     $tb = strtoupper(preg_replace(array("/[0-9,\"'#~:;_\- ]/", "/\r\n/"), array("", "\n"), $b));
 229
 230     $la = explode("\n", $ta);
 231     $lb = explode("\n", $tb);
 232
 233     if (count($lb) > count($la) + 1) {
 234         return false;
 235     }
 236     foreach ($la as $i=>$l) {
 237         if (levenshtein(trim($l), trim($lb[$i])) > 3) {
 238             return false;
 239         }
 240     }
 241     return true;
 242 }
 243
 244 // }}}
 245
 246 function empty_address() {
 247     return Array(
 248         "adr1" => "",
 249         "adr2" => "",
 250         "adr3" => "",
 251         "cityid" => NULL,
 252         "city" => "",
 253         "postcode" => "",
 254         "region" => "",
 255         "regiontxt" => "",
 256         "country" => "00",
 257         "countrytxt" => "",
 258         "precise_lat" => "",
 259         "precise_lon" => "");
 260 }
 261
 262 // create a simple address from a text without geoloc
 263 function cut_address($txt)
 264 {
 265     $txt = str_replace("\r\n", "\n", $txt);
 266     ereg("^([^\n]*)(\n([^\n]*)(\n(.*))?)?$", trim($txt), $a);
 267     return array("adr1" => trim($a[1]), "adr2" => trim($a[3]), "adr3" => trim(str_replace("\n", " ", $a[5])));
 268 }
 269
 270 // {{{ localize_addresses($uid)
 271 /* localize all the address of a user and modify the database
 272  * if the new address match with the old one
 273  * @param $uid the id of the user
 274  */
 275 function localize_addresses($uid)
 276 {
 277     $res = XDB::iterator("SELECT  *
 278                             FROM  adresses
 279                            WHERE  uid = {?} and (cityid IS NULL OR cityid = 0)", $uid);
 280     $erreur = Array();
 281
 282     while ($a = $res->next()) {
 283         $new = get_address_infos($ta = get_address_text($a));
 284         if (compare_addresses_text($ta, get_address_text($new))) {
 285             XDB::execute("UPDATE  adresses
 286                              SET  adr1 = {?}, adr2 = {?}, adr3 = {?},
 287                                   cityid = {?}, city = {?}, postcode = {?},
 288                                   region = {?}, regiontxt = {?}, country = {?},
 289                                   glat = {?}, glng = {?}
 290                            WHERE  uid = {?} AND adrid = {?}",
 291                           $new['adr1'], $new['adr2'], $new['adr3'],
 292                           $new['cityid'], $new['city'], $new['postcode'],
 293                           $new['region'], $new['regiontxt'], $new['country'],
 294                           $new['precise_lat'], $new['precise_lon'],
 295                           $uid, $a['adrid']);
 296             $new['store'] = true;
 297             if (!$new['cityid']) {
 298                 $erreur[$a['adrid']] = $new;
 299             }
 300         } else {
 301             $new['store'] = false;
 302             $erreur[$a['adrid']] = $new;
 303         }
 304     }
 305     return $erreur;
 306 }
 307 // }}}
 308
 309 // {{{ synchro_city($id)
 310 /** synchronise the local geoloc_city base to geoloc.org
 311  * @param $id the id of the city to synchronize
 312  */
 313 function synchro_city($id)
 314 {
 315     global $globals;
 316     $url = $globals->geoloc->webservice_url."cityFinder.php?method=id&id=".$id."&out=sql";
 317     if (!($f = @fopen($url, 'r'))) {
 318         return false;
 319     }
 320     $s = fgets($f);
 321     if ($s) {
 322         return XDB::execute("REPLACE INTO geoloc_city VALUES ".$s) > 0;
 323     }
 324 }
 325  // }}}
 326
 327 // {{{ function fix_cities_not_on_map($limit)
 328 function fix_cities_not_on_map($limit=false, $cityid=false)
 329 {
 330     $missing = XDB::query("SELECT  c.id
 331                              FROM  geoloc_city AS c
 332                         LEFT JOIN  geoloc_city_in_maps AS m ON(c.id = m.city_id)
 333                             WHERE  m.city_id IS NULL"
 334                             . ($cityid ? " AND c.id = '" . $cityid . "'" : "" )
 335                             . ($limit ?  " LIMIT $limit" : "" ));
 336     $maps = get_cities_maps($missing->fetchColumn());
 337     if ($maps) {
 338         $values = "";
 339         foreach ($maps as $cityid => $maps_c) {
 340             foreach ($maps_c as $map_id) {
 341                 $values .= ",($cityid, $map_id, '')";
 342             }
 343         }
 344         if (strlen($values) > 1) {
 345             XDB::execute("REPLACE INTO  geoloc_city_in_maps
 346                                 VALUES  ".substr($values, 1));
 347         }
 348     } else {
 349         return false;
 350     }
 351     return true;
 352 }
 353
 354 function set_smallest_levels()
 355 {
 356     $maxlengths = XDB::iterRow("SELECT  MAX(LENGTH(gm.path)), gcim.city_id
 357                                   FROM  geoloc_city_in_maps AS gcim
 358                             INNER JOIN  geoloc_maps AS gm USING ( map_id )
 359                               GROUP BY  gcim.city_id");
 360     while (list($length, $id) = $maxlengths->next()) {
 361         XDB::execute("UPDATE  geoloc_city_in_maps AS gcim
 362                   INNER JOIN  geoloc_maps AS gm USING(map_id)
 363                          SET  gcim.infos = IF(LENGTH(gm.path) = {?}, 'smallest', '')
 364                        WHERE  gcim.city_id = {?}", $length, $id);
 365     }
 366     return true;
 367 }
 368 // }}}
 369
 370
 371 function geoloc_to_x($lon, $lat)
 372 {
 373     return deg2rad(1) * $lon *100;
 374 }
 375
 376 function geoloc_to_y($lon, $lat)
 377 {
 378     if ($lat < -75) {
 379         return latToY(-75);
 380     }
 381     if ($lat > 75) {
 382         return latToY(75);
 383     }
 384     return -100 * log(tan(pi()/4 + deg2rad(1)/2*$lat));
 385 }
 386
 387 function size_of_city($nb)
 388 {
 389     $s = round(log($nb + 1)*2,2);
 390     if ($s < 1) {
 391         return 1;
 392     }
 393     return $s;
 394 }
 395
 396 function size_of_territory($nb)
 397 {
 398     return size_of_city($nb);
 399 }
 400
 401 function geoloc_getData_subcities($mapid, $SFields, &$cities, $direct=true)
 402 {
 403     if ($SFields instanceof UserSet) {
 404         $set = $SFields;
 405         $SFields = array();
 406     } else {
 407         $set = new UserSet();
 408     }
 409     for ($i_mapfield=0; $i_mapfield < count($SFields) ; $i_mapfield++) {
 410         if ($SFields[$i_mapfield]->fieldFormName == 'mapid') {
 411             break;
 412         }
 413     }
 414     $SFields[$i_mapfield] = new MapSField('mapid',
 415                                           array('gcim.map_id'),
 416                                           array('adresses','geoloc_city_in_maps'),
 417                                           array('am','gcim'),
 418                                           array(getadr_join('am'), 'am.cityid = gcim.city_id'),
 419                                           $mapid);
 420     $fields = new SFieldGroup(true, $SFields);
 421     $where = $fields->get_where_statement();
 422     $joins = $fields->get_select_statement();
 423     if ($where) {
 424         $where .= ' AND ';
 425     }
 426     $cityres = $set->get('gc.id,
 427                           gc.lon / 100000 AS x, gc.lat/100000 AS y,
 428                           gc.name,
 429                           COUNT(u.user_id) AS pop,
 430                           SUM(u.promo % 2) AS yellow',
 431                           "$joins
 432                           LEFT JOIN  geoloc_city  AS gc ON(gcim.city_id = gc.id)",
 433                           $where . ($direct ? "gcim.infos = 'smallest'" : '1'),
 434                           'gc.id, gc.alias',
 435                           'pop DESC');
 436     foreach($cityres as $c) {
 437         if ($c['pop'] > 0) {
 438             $city = $c;
 439             $city['x'] = geoloc_to_x($c['x'], $c['y']);
 440             $city['y'] = geoloc_to_y($c['x'], $c['y']);
 441             $city['size'] = size_of_city($c['pop']);
 442             $cities[$c['id']] = $city;
 443         }
 444     }
 445 }
 446
 447 function geoloc_getData_subcountries($mapid, $sin, $minentities)
 448 {
 449     $countries = array();
 450     $cities = array();
 451
 452     if ($mapid === false) {
 453         $wheremapid = "WHERE gm.parent IS NULL";
 454     } else {
 455         $wheremapid = "WHERE   gm.parent = {?}";
 456     }
 457     $submapres = XDB::iterator(
 458         "SELECT  gm.map_id AS id, gm.name, gm.x, gm.y, gm.xclip, gm.yclip,
 459                  gm.width, gm.height, gm.scale, 1 AS rat
 460            FROM  geoloc_maps AS gm
 461         ". $wheremapid, Env::v('mapid',''));
 462
 463     global $globals;
 464
 465     while ($c = $submapres->next()) {
 466         $country = $c;
 467         $country['color'] = 0xFFFFFF;
 468         $country['swf'] = $globals->geoloc->webservice_url."maps/mercator/map_".$c['id'].".swf";
 469         $countries[$c['id']] = $country;
 470     }
 471
 472     if ($mapid === false) {
 473         return array($countries, $cities);
 474     }
 475
 476     geoloc_getData_subcities(Env::i('mapid'), $sin, $cities);
 477     $nbcities = count($cities);
 478     $nocity = $nbcities == 0;
 479     if ($sin instanceof UserSet) {
 480         $set = $sin;
 481         $SFields = array();
 482     } else {
 483         $set = new UserSet();
 484         $SFields = $sin;
 485     }
 486
 487     for ($i_mapfield=0; $i_mapfield < count($SFields) ; $i_mapfield++) {
 488         if ($SFields[$i_mapfield]->fieldFormName == 'mapid') {
 489             break;
 490         }
 491     }
 492     $SFields[$i_mapfield] = new MapSField('mapid',
 493                                           array('map.parent'),
 494                                           array('adresses','geoloc_city_in_maps','geoloc_maps'),
 495                                           array('am','gcim','map'),
 496                                           array(getadr_join('am'),
 497                                           'am.cityid = gcim.city_id',
 498                                           'map.map_id = gcim.map_id'));
 499     $fields = new SFieldGroup(true, $SFields);
 500     $where  = $fields->get_where_statement();
 501     $joins  = $fields->get_select_statement();
 502     $countryres = $set->get('map.map_id AS id,
 503                              COUNT(u.user_id) AS nbPop,
 504                              SUM(u.promo % 2) AS yellow,
 505                              COUNT(DISTINCT gcim.city_id) AS nbCities,
 506                              SUM(IF(u.user_id IS NULL,0,am.glng)) AS lonPop,
 507                              SUM(IF(u.user_id IS NULL, 0,am.glat)) AS latPop',
 508                             $joins,
 509                             $where,
 510                             'map.map_id',
 511                             'NULL');
 512
 513     $maxpop = 0;
 514     $nbentities = $nbcities + count($countryres);
 515     foreach ($countryres as $c) {
 516         $c['latPop'] /= $c['nbPop'];
 517         $c['lonPop'] /= $c['nbPop'];
 518         $c['rad'] = size_of_territory($c['nbPop']);
 519         if ($maxpop < $c['nbPop']) $maxpop = $c['nbPop'];
 520         $c['xPop'] = geoloc_to_x($c['lonPop'], $c['latPop']);
 521         $c['yPop'] = geoloc_to_y($c['lonPop'], $c['latPop']);
 522         @$countries[$c['id']] = array_merge($countries[$c['id']], $c);
 523
 524         $nbcities += $c['nbCities'];
 525     }
 526
 527     if ($nocity && $nbcities < $minentities){
 528         foreach($countries as $i => $c) {
 529             $countries[$i]['nbPop'] = 0;
 530             if (@$c['nbCities'] > 0) {
 531                 geoloc_getData_subcities($c['id'], $sin, $cities, false);
 532             }
 533         }
 534     }
 535
 536     foreach ($countries as $i => $c) {
 537         if (@$c['nbPop'] > 0) {
 538             $lambda = pow($c['nbPop'] / $maxpop,0.3);
 539             $countries[$i]['color'] = 0x0000FF + round((1-$lambda) * 0xFF)*0x010100;
 540         }
 541     }
 542
 543     return array($countries, $cities);
 544 }
 545 // }}}
 546
 547 // vim:set et sw=4 sts=4 sws=4 foldmethod=marker enc=utf-8:
 548 ?>