include/geoloc.inc.php

   1 <?php
   2 /***************************************************************************
   3  *  Copyright (C) 2003-2007 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     $infos = array();
  86     foreach ($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] = $val;
  93             }
  94         }
  95     }
  96     if (isset($infos['sql']) && $infos['sql'])
  97        XDB::execute("REPLACE INTO geoloc_city VALUES ".$infos['sql']);
  98     if (isset($infos['display']) && $infos['display'])
  99         XDB::execute("UPDATE geoloc_pays SET display = {?} WHERE a2 = {?}", $infos['display'], $infos['country']);
 100     if (isset($infos['cityid']))
 101         fix_cities_not_on_map(1, $infos['cityid']);
 102     return $infos;
 103 }
 104 // }}}
 105
 106 // {{{ get_cities_maps($array)
 107 /* get all the maps id of the cities contained in an array */
 108 function get_cities_maps($array)
 109 {
 110     global $globals;
 111     implode("\n",$array);
 112     $url = $globals->geoloc->webservice_url."findMaps.php?datatext=".urlencode(implode("\n", $array));
 113     if (!($f = @fopen($url, 'r'))) return false;
 114     $maps = array();
 115     while (!feof($f))
 116     {
 117         $l = trim(fgets($f));
 118         $tab = explode(';', $l);
 119         $i = $tab[0];
 120         unset($tab[0]);
 121         $maps[$i] = $tab;
 122     }
 123     return $maps;
 124 }
 125 // }}}
 126
 127 // {{{ get_new_maps($url)
 128 /** set new maps from url **/
 129 function get_new_maps($url)
 130 {
 131     if (!($f = @fopen($url, 'r'))) {
 132         return false;
 133     }
 134     XDB::query('TRUNCATE TABLE geoloc_maps');
 135     $s = '';
 136     while (!feof($f)) {
 137         $l = fgetcsv($f, 1024, ';', '"');
 138         foreach ($l as $i => $val) {
 139             if ($val != 'NULL') {
 140                 $l[$i] = '\''.addslashes($val).'\'';
 141             }
 142         }
 143         $s .= ',('.implode(',',$l).')';
 144     }
 145     XDB::execute('INSERT INTO geoloc_maps VALUES '.substr($s, 1));
 146     return true;
 147 }
 148 // }}}
 149
 150 // {{{ get_address_text($adr)
 151 /** make the text of an address that can be read by a mailman
 152  * @param $adr an array with all the usual fields
 153  */
 154 function get_address_text($adr)
 155 {
 156     $t = "";
 157     if (isset($adr['adr1']) && $adr['adr1']) $t.= $adr['adr1'];
 158     if (isset($adr['adr2']) && $adr['adr2']) $t.= "\n".$adr['adr2'];
 159     if (isset($adr['adr3']) && $adr['adr3']) $t.= "\n".$adr['adr3'];
 160     $l = "";
 161     if (isset($adr['display']) && $adr['display']) {
 162         $keys = explode(' ', $adr['display']);
 163         foreach ($keys as $key) {
 164             if (isset($adr[$key])) {
 165                 $l .= " ".$adr[$key];
 166             } else {
 167                 $l .= " ".$key;
 168             }
 169         }
 170         if ($l) substr($l, 1);
 171     } elseif ($adr['country'] == 'US' || $adr['country'] == 'CA' || $adr['country'] == 'GB') {
 172         if ($adr['city']) $l .= $adr['city'].",\n";
 173         if ($adr['region']) $l .= $adr['region']." ";
 174         if ($adr['postcode']) $l .= $adr['postcode'];
 175     } else {
 176         if (isset($adr['postcode']) && $adr['postcode']) $l .= $adr['postcode']." ";
 177         if (isset($adr['city']) && $adr['city']) $l .= $adr['city'];
 178     }
 179     if ($l) $t .= "\n".trim($l);
 180     if ($adr['country'] != '00' && (!$adr['countrytxt'] || $adr['countrytxt'] == strtoupper($adr['countrytxt']))) {
 181         $res = XDB::query("SELECT pays FROM geoloc_pays WHERE a2 = {?}", $adr['country']);
 182         $adr['countrytxt'] = $res->fetchOneCell();
 183     }
 184     if (isset($adr['countrytxt']) && $adr['countrytxt']) {
 185         $t .= "\n".$adr['countrytxt'];
 186     }
 187     return trim($t);
 188 }
 189 // }}}
 190
 191 // {{{ compare_addresses_text($a, $b)
 192 /** compares if two address matches
 193  * @param $a the raw text of an address
 194  * @param $b the raw text of a complete valid address
 195  */
 196 function compare_addresses_text($a, $b)
 197 {
 198     $ta = strtoupper(preg_replace(array("/[0-9,\"'#~:;_\- ]/", "/\r\n/"), array("", "\n"), $a));
 199     $tb = strtoupper(preg_replace(array("/[0-9,\"'#~:;_\- ]/", "/\r\n/"), array("", "\n"), $b));
 200
 201     $la = explode("\n", $ta);
 202     $lb = explode("\n", $tb);
 203
 204     if (count($lb) > count($la) + 1) {
 205         return false;
 206     }
 207     foreach ($la as $i=>$l) {
 208         if (levenshtein(trim($l), trim($lb[$i])) > 3) {
 209             return false;
 210         }
 211     }
 212     return true;
 213 }
 214
 215 // }}}
 216
 217 function empty_address() {
 218     return Array(
 219         "adr1" => "",
 220         "adr2" => "",
 221         "adr3" => "",
 222         "cityid" => NULL,
 223         "city" => "",
 224         "postcode" => "",
 225         "region" => "",
 226         "regiontxt" => "",
 227         "country" => "00",
 228         "countrytxt" => "");
 229 }
 230
 231 // create a simple address from a text without geoloc
 232 function cut_address($txt)
 233 {
 234     $txt = str_replace("\r\n", "\n", $txt);
 235     ereg("^([^\n]*)(\n([^\n]*)(\n(.*))?)?$", trim($txt), $a);
 236     return array("adr1" => trim($a[1]), "adr2" => trim($a[3]), "adr3" => trim(str_replace("\n", " ", $a[5])));
 237 }
 238
 239 // {{{ localize_addresses($uid)
 240 /* localize all the address of a user and modify the database
 241  * if the new address match with the old one
 242  * @param $uid the id of the user
 243  */
 244 function localize_addresses($uid)
 245 {
 246     $res = XDB::iterator("SELECT  *
 247                             FROM  adresses
 248                            WHERE  uid = {?} and (cityid IS NULL OR cityid = 0)", $uid);
 249     $erreur = Array();
 250
 251     while ($a = $res->next()) {
 252         $new = get_address_infos($ta = get_address_text($a));
 253         if (compare_addresses_text($ta, get_address_text($new))) {
 254             XDB::execute("UPDATE  adresses
 255                              SET  adr1 = {?}, adr2 = {?}, adr3 = {?},
 256                                   cityid = {?}, city = {?}, postcode = {?},
 257                                   region = {?}, regiontxt = {?}, country = {?},
 258                                   glat = {?}, glng = {?}
 259                            WHERE  uid = {?} AND adrid = {?}",
 260                           $new['adr1'], $new['adr2'], $new['adr3'],
 261                           $new['cityid'], $new['city'], $new['postcode'],
 262                           $new['region'], $new['regiontxt'], $new['country'],
 263                           $new['precise_lat'], $new['precise_lon'],
 264                           $uid, $a['adrid']);
 265             $new['store'] = true;
 266             if (!$new['cityid']) {
 267                 $erreur[$a['adrid']] = $new;
 268             }
 269         } else {
 270             $new['store'] = false;
 271             $erreur[$a['adrid']] = $new;
 272         }
 273     }
 274     return $erreur;
 275 }
 276 // }}}
 277
 278 // {{{ synchro_city($id)
 279 /** synchronise the local geoloc_city base to geoloc.org
 280  * @param $id the id of the city to synchronize
 281  */
 282 function synchro_city($id)
 283 {
 284     global $globals;
 285     $url = $globals->geoloc->webservice_url."cityFinder.php?method=id&id=".$id."&out=sql";
 286     if (!($f = @fopen($url, 'r'))) {
 287         return false;
 288     }
 289     $s = fgets($f);
 290     if ($s) {
 291         return XDB::execute("REPLACE INTO geoloc_city VALUES ".$s) > 0;
 292     }
 293 }
 294  // }}}
 295
 296 // {{{ function fix_cities_not_on_map($limit)
 297 function fix_cities_not_on_map($limit=false, $cityid=false)
 298 {
 299     $missing = XDB::query("SELECT  c.id
 300                              FROM  geoloc_city AS c
 301                         LEFT JOIN  geoloc_city_in_maps AS m ON(c.id = m.city_id)
 302                             WHERE  m.city_id IS NULL"
 303                             . ($cityid ? " AND c.id = '" . $cityid . "'" : "" )
 304                             . ($limit ?  " LIMIT $limit" : "" ));
 305     $maps = get_cities_maps($missing->fetchColumn());
 306     if ($maps) {
 307         $values = "";
 308         foreach ($maps as $cityid => $maps_c) {
 309             foreach ($maps_c as $map_id) {
 310                 $values .= ",($cityid, $map_id, '')";
 311             }
 312         }
 313         XDB::execute("REPLACE INTO  geoloc_city_in_maps
 314                             VALUES  ".substr($values, 1));
 315     } else {
 316         return false;
 317     }
 318     return true;
 319 }
 320
 321 function set_smallest_levels()
 322 {
 323     $maxlengths = XDB::iterRow("SELECT  MAX(LENGTH(gm.path)), gcim.city_id
 324                                   FROM  geoloc_city_in_maps AS gcim
 325                             INNER JOIN  geoloc_maps AS gm USING ( map_id )
 326                               GROUP BY  gcim.city_id");
 327     while (list($length, $id) = $maxlengths->next()) {
 328         XDB::execute("UPDATE  geoloc_city_in_maps AS gcim
 329                   INNER JOIN  geoloc_maps AS gm USING(map_id)
 330                          SET  gcim.infos = IF(LENGTH(gm.path) = {?}, 'smallest', '')
 331                        WHERE  gcim.city_id = {?}", $length, $id);
 332     }
 333     return true;
 334 }
 335 // }}}
 336
 337
 338 function geoloc_to_x($lon, $lat)
 339 {
 340     return deg2rad(1) * $lon *100;
 341 }
 342
 343 function geoloc_to_y($lon, $lat)
 344 {
 345     if ($lat < -75) {
 346         return latToY(-75);
 347     }
 348     if ($lat > 75) {
 349         return latToY(75);
 350     }
 351     return -100 * log(tan(pi()/4 + deg2rad(1)/2*$lat));
 352 }
 353
 354 function size_of_city($nb)
 355 {
 356     $s = round(log($nb + 1)*2,2);
 357     if ($s < 1) {
 358         return 1;
 359     }
 360     return $s;
 361 }
 362
 363 function size_of_territory($nb)
 364 {
 365     return size_of_city($nb);
 366 }
 367
 368 function geoloc_getData_subcities($mapid, $SFields, &$cities, $direct=true)
 369 {
 370     if ($SFields instanceof UserSet) {
 371         $set = $SFields;
 372         $SFields = array();
 373     } else {
 374         $set = new UserSet();
 375     }
 376     for ($i_mapfield=0; $i_mapfield < count($SFields) ; $i_mapfield++) {
 377         if ($SFields[$i_mapfield]->fieldFormName == 'mapid') {
 378             break;
 379         }
 380     }
 381     $SFields[$i_mapfield] = new MapSField('mapid',
 382                                           array('gcim.map_id'),
 383                                           array('adresses','geoloc_city_in_maps'),
 384                                           array('am','gcim'),
 385                                           array(getadr_join('am'), 'am.cityid = gcim.city_id'),
 386                                           $mapid);
 387     $fields = new SFieldGroup(true, $SFields);
 388     $where = $fields->get_where_statement();
 389     $joins = $fields->get_select_statement();
 390     if ($where) {
 391         $where .= ' AND ';
 392     }
 393     $cityres = $set->get('gc.id,
 394                           gc.lon / 100000 AS x, gc.lat/100000 AS y,
 395                           gc.name,
 396                           COUNT(u.user_id) AS pop,
 397                           SUM(u.promo % 2) AS yellow',
 398                           "$joins
 399                           LEFT JOIN  geoloc_city  AS gc ON(gcim.city_id = gc.id)",
 400                           $where . ($direct ? "gcim.infos = 'smallest'" : '1'),
 401                           'gc.id, gc.alias',
 402                           'pop DESC');
 403     while ($c = $cityres->next()) {
 404         if ($c['pop'] > 0) {
 405             $city = $c;
 406             $city['x'] = geoloc_to_x($c['x'], $c['y']);
 407             $city['y'] = geoloc_to_y($c['x'], $c['y']);
 408             $city['size'] = size_of_city($c['pop']);
 409             $cities[$c['id']] = $city;
 410         }
 411     }
 412 }
 413
 414 function geoloc_getData_subcountries($mapid, $sin, $minentities)
 415 {
 416     $countries = array();
 417     $cities = array();
 418
 419     if ($mapid === false) {
 420         $wheremapid = "WHERE gm.parent IS NULL";
 421     } else {
 422         $wheremapid = "WHERE   gm.parent = {?}";
 423     }
 424     $submapres = XDB::iterator(
 425         "SELECT  gm.map_id AS id, gm.name, gm.x, gm.y, gm.xclip, gm.yclip,
 426                  gm.width, gm.height, gm.scale, 1 AS rat
 427            FROM  geoloc_maps AS gm
 428         ". $wheremapid, Env::v('mapid',''));
 429
 430     global $globals;
 431
 432     while ($c = $submapres->next()) {
 433         $country = $c;
 434         $country['color'] = 0xFFFFFF;
 435         $country['swf'] = $globals->geoloc->webservice_url."maps/mercator/map_".$c['id'].".swf";
 436         $countries[$c['id']] = $country;
 437     }
 438
 439     if ($mapid === false) {
 440         return array($countries, $cities);
 441     }
 442
 443     geoloc_getData_subcities(Env::i('mapid'), $sin, $cities);
 444     $nbcities = count($cities);
 445     $nocity = $nbcities == 0;
 446     if ($sin instanceof UserSet) {
 447         $set = $sin;
 448         $SFields = array();
 449     } else {
 450         $set = new UserSet();
 451         $SFields = $sin;
 452     }
 453
 454     for ($i_mapfield=0; $i_mapfield < count($SFields) ; $i_mapfield++) {
 455         if ($SFields[$i_mapfield]->fieldFormName == 'mapid') {
 456             break;
 457         }
 458     }
 459     $SFields[$i_mapfield] = new MapSField('mapid',
 460                                           array('map.parent'),
 461                                           array('adresses','geoloc_city_in_maps','geoloc_maps'),
 462                                           array('am','gcim','map'),
 463                                           array(getadr_join('am'),
 464                                           'am.cityid = gcim.city_id',
 465                                           'map.map_id = gcim.map_id'));
 466     $fields = new SFieldGroup(true, $SFields);
 467     $where  = $fields->get_where_statement();
 468     $joins  = $fields->get_select_statement();
 469     $countryres = $set->get('map.map_id AS id,
 470                              COUNT(u.user_id) AS nbPop,
 471                              SUM(u.promo % 2) AS yellow,
 472                              COUNT(DISTINCT gcim.city_id) AS nbCities,
 473                              SUM(IF(u.user_id IS NULL,0,am.glng)) AS lonPop,
 474                              SUM(IF(u.user_id IS NULL, 0,am.glat)) AS latPop',
 475                             $joins,
 476                             $where,
 477                             'map.map_id',
 478                             'NULL');
 479
 480     $maxpop = 0;
 481     $nbentities = $nbcities + $countryres->total();
 482     while ($c = $countryres->next()) {
 483         $c['latPop'] /= $c['nbPop'];
 484         $c['lonPop'] /= $c['nbPop'];
 485         $c['rad'] = size_of_territory($c['nbPop']);
 486         if ($maxpop < $c['nbPop']) $maxpop = $c['nbPop'];
 487         $c['xPop'] = geoloc_to_x($c['lonPop'], $c['latPop']);
 488         $c['yPop'] = geoloc_to_y($c['lonPop'], $c['latPop']);
 489         @$countries[$c['id']] = array_merge($countries[$c['id']], $c);
 490
 491         $nbcities += $c['nbCities'];
 492     }
 493
 494     if ($nocity && $nbcities < $minentities){
 495         foreach($countries as $i => $c) {
 496             $countries[$i]['nbPop'] = 0;
 497             if (@$c['nbCities'] > 0) {
 498                 geoloc_getData_subcities($c['id'], $sin, $cities, false);
 499             }
 500         }
 501     }
 502
 503     foreach ($countries as $i => $c) {
 504         if (@$c['nbPop'] > 0) {
 505             $lambda = pow($c['nbPop'] / $maxpop,0.3);
 506             $countries[$i]['color'] = 0x0000FF + round((1-$lambda) * 0xFF)*0x010100;
 507         }
 508     }
 509
 510     return array($countries, $cities);
 511 }
 512 // }}}
 513
 514 // vim:set et sw=4 sts=4 sws=4 foldmethod=marker enc=utf-8:
 515 ?>