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