/
syndicator.php
338 lines (279 loc) · 12.1 KB
/
syndicator.php
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<?php
/**
* $Project: GeoGraph $
* $Id$
*
* GeoGraph geographic photo archive project
* This file copyright (C) 2005 Barry Hunter (geo@barryhunter.co.uk)
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
require_once('geograph/global.inc.php');
require_once('geograph/feedcreator.class.php');
require_once('geograph/gridimage.class.php');
require_once('geograph/gridsquare.class.php');
require_once('geograph/imagelist.class.php');
$valid_formats=array('RSS0.91','RSS1.0','RSS2.0','MBOX','OPML','ATOM','ATOM0.3','HTML','JS','PHP','KML','BASE','GeoRSS','GeoPhotoRSS','GPX','TOOLBAR','MEDIA');
if (isset($_GET['extension']) && !isset($_GET['format']))
{
$_GET['format'] = strtoupper($_GET['extension']);
$_GET['format'] = str_replace('GEO','Geo',$_GET['format']);
$_GET['format'] = str_replace('PHOTO','Photo',$_GET['format']);
}
$format="GeoRSS";
if (isset($_GET['format']) && in_array($_GET['format'], $valid_formats))
{
$format=$_GET['format'];
}
if ($format == 'KML') {
if (!isset($_GET['simple']))
$_GET['simple'] = 1; //default to on
$extension = (empty($_GET['simple']))?'kml':'simple.kml';
} elseif ($format == 'GPX') {
$extension = 'gpx';
} else {
$extension = 'xml';
}
/**
* We are building a text search for the first time
*/
if (isset($_GET['q']) || !empty($_GET['location'])) {
if (!empty($_GET['lat']) && !empty($_GET['lon'])) {
$_GET['location'] = $_GET['lat'].','.$_GET['lon'];
}
if (!empty($_GET['BBOX'])) {
//this is treated special later...
$_GET['location'] = '(anywhere)';
}
if (!empty($_GET['location'])) {
if (!empty($_GET['text'])) {
$q=trim($_GET['text']).' near '.trim($_GET['location']);
} elseif (!empty($_GET['q'])) {
$q=trim($_GET['q']).' near '.trim($_GET['location']);
} else {
$q='near '.trim($_GET['location']);
}
} else {
$q=trim($_GET['q']);
}
//temporally redirect piclens full-text search directly to sphinx
if (isset($_GET['source']) && ($_GET['source'] == 'piclens' || $_GET['source'] == 'fist') ) {
$sphinx = new sphinxwrapper($q);
//gets a cleaned up verion of the query (suitable for filename etc)
$cacheid = $sphinx->q;
$sphinx->pageSize = $pgsize = 15;
$sphinx->processQuery();
$pg = (!empty($_GET['page']))?intval(str_replace('/','',$_GET['page'])):0;
if (empty($pg) || $pg < 1) {$pg = 1;}
$ids = $sphinx->returnIds($pg,'_images');
unset($q);
} else {
$cacheid = getTextKey();
$pg = 1;
//$q is used below
}
} elseif (isset($_GET['text'])) {
$cacheid = getTextKey();
$pg = 1;
$q = $_GET['text'].' near (anywhere)';
}
$opt_expand = (!empty($_GET['expand']) && $format != 'KML')?1:0;
if (isset($cacheid)) {
$rssfile=$_SERVER['DOCUMENT_ROOT']."/rss/$cacheid-{$pg}-{$format}{$opt_expand}.$extension";
$rss_timeout = 3600;
} elseif (isset($_GET['i']) && is_numeric($_GET['i'])) {
$pg = (!empty($_GET['page']))?intval(str_replace('/','',$_GET['page'])):1;
$rssfile=$_SERVER['DOCUMENT_ROOT']."/rss/{$_GET['i']}-{$pg}-{$format}{$opt_expand}.$extension";
$rss_timeout = 3600;
} elseif (isset($_GET['u']) && is_numeric($_GET['u'])) {
$rssfile=$_SERVER['DOCUMENT_ROOT']."/rss/u{$_GET['u']}-{$format}{$opt_expand}.$extension";
$rss_timeout = 1800;
} else {
$rssfile=$_SERVER['DOCUMENT_ROOT']."/rss/{$format}{$opt_expand}.$extension";
$rss_timeout = 900;
}
$rss = new UniversalFeedCreator();
$rss->useCached($format,$rssfile,$rss_timeout);
$rss->title = 'Geograph British Isles';
$rss->link = "http://{$_SERVER['HTTP_HOST']}/";
/**
* Create a query the first time round!
*/
if (isset($q)) {
require_once('geograph/searchcriteria.class.php');
require_once('geograph/searchengine.class.php');
require_once('geograph/searchenginebuilder.class.php');
$engine = new SearchEngineBuilder('#');
$engine->searchuse = "syndicator";
$_GET['i'] = $engine->buildSimpleQuery($q,$CONF['default_search_distance'],false,isset($_GET['u'])?$_GET['u']:0);
if (function_exists('symlink') && isset($cacheid)) {
//create a link so cache can be access as original query(cacheid) or directly via its 'i' number later...
symlink($_SERVER['DOCUMENT_ROOT']."/rss/$cacheid-{$pg}-{$format}{$opt_expand}.$extension",
$_SERVER['DOCUMENT_ROOT']."/rss/{$_GET['i']}-{$pg}-{$format}{$opt_expand}.$extension");
}
if (!empty($engine->errormsg) && !empty($_GET['fatal'])) {
die('error: '.$engine->errormsg);
}
if (isset($engine->criteria) && $engine->criteria->is_multiple) {
die('error: unable to identify a unique location');
}
}
/**
* A full-text query
*/
if (isset($sphinx)) {
$rss->description = "Images, matching ".$sphinx->qoutput;
if ($sphinx->resultCount) {
$rss->description .= " ({$sphinx->resultCount} in total)";
}
$rss->syndicationURL = "http://{$_SERVER['HTTP_HOST']}/syndicator.php?q=".urlencode($sphinx->q).(($pg>1)?"&page=$pg":'')."&format=".($format).((isset($_GET['source']))?"&source={$_GET['source']}":'');
if ($format == 'MEDIA') {
$rss->link = "http://{$_SERVER['HTTP_HOST']}/search.php?q=".urlencode($sphinx->$q).(($pg>1)?"&page=$pg":'');
if ($pg>1) {
$prev = $pg - 1;
$rss->prevURL = "http://{$_SERVER['HTTP_HOST']}/syndicator.php?q=".urlencode($sphinx->q).(($prev>1)?"&page=$prev":'')."&format=".($format).((isset($_GET['source']))?"&source={$_GET['source']}":'');
}
$offset = ($pg -1)* $pgsize;
if ($pg < 10 && $offset < 250 && $sphinx->numberOfPages > $pg) {
$next = $pg + 1;
$rss->nextURL = "http://{$_SERVER['HTTP_HOST']}/syndicator.php?q=".urlencode($sphinx->q).(($next>1)?"&page=$next":'')."&format=".($format).((isset($_GET['source']))?"&source={$_GET['source']}":'');
}
$rss->icon = "http://{$CONF['STATIC_HOST']}/templates/basic/img/logo.gif";
}
//lets find some photos
$images=new ImageList();
$images->getImagesByIdList($ids);
/**
* runs a canned search (possibly created above)
*/
} elseif (isset($_GET['i']) && is_numeric($_GET['i'])) {
require_once('geograph/searchcriteria.class.php');
require_once('geograph/searchengine.class.php');
$pg = (!empty($_GET['page']))?intval(str_replace('/','',$_GET['page'])):1;
if (empty($pg) || $pg < 1) {$pg = 1;}
$images = new SearchEngine($_GET['i']);
$rss->description = "Images".$images->criteria->searchdesc;
$rss->syndicationURL = "http://{$_SERVER['HTTP_HOST']}/feed/results/".$_GET['i'].(($pg>1)?"/$pg":'').".".strtolower($format);
$images->Execute($pg);
if ($images->resultCount) {
$rss->description .= " ({$images->resultCount} in total)";
}
if ($format == 'MEDIA') {
$rss->link = "http://{$_SERVER['HTTP_HOST']}/search.php?i=".$_GET['i'].(($pg>1)?"&page=$pg":'');
if ($pg>1) {
$prev = $pg - 1;
$rss->prevURL = "http://{$_SERVER['HTTP_HOST']}/feed/results/".$_GET['i'].(($prev>1)?"/$prev":'').".".strtolower($format);
}
$pgsize = $images->criteria->resultsperpage;
if (!$pgsize) {$pgsize = 15;}
$offset = ($pg -1)* $pgsize;
if ($pg < 10 && $offset < 250 && $images->numberOfPages > $pg) {
$next = $pg + 1;
$rss->nextURL = "http://{$_SERVER['HTTP_HOST']}/feed/results/".$_GET['i'].(($next>1)?"/$next":'').".".strtolower($format);
}
$rss->icon = "http://{$CONF['STATIC_HOST']}/templates/basic/img/logo.gif";
}
$images->images = &$images->results;
/**
* A user specific feed
*/
} elseif (isset($_GET['u']) && is_numeric($_GET['u'])) {
$profile=new GeographUser($_GET['u']);
$rss->description = 'Latest Images by '.$profile->realname;
$rss->syndicationURL = "http://{$_SERVER['HTTP_HOST']}/profile/".intval($_GET['u'])."/feed/recent.".strtolower($format);
//lets find some recent photos
$images=new ImageList();
$images->getImagesByUser($_GET['u'],array('accepted', 'geograph'), 'gridimage_id desc', 15, false);
/**
* general feed of all images
*/
} else {
$rss->description = 'Latest Images';
$rss->syndicationURL = "http://{$_SERVER['HTTP_HOST']}/feed/recent.".strtolower($format);
//lets find some recent photos
$images=new ImageList(array('accepted', 'geograph'), 'gridimage_id desc', 15);
}
$cnt=count($images->images);
$geoformat = ($format == 'KML' || $format == 'GeoRSS' || $format == 'GeoPhotoRSS' || $format == 'GPX' || $format == 'MEDIA');
$photoformat = ($format == 'KML' || $format == 'GeoPhotoRSS' || $format == 'BASE' || $format == 'MEDIA');
//create some feed items
for ($i=0; $i<$cnt; $i++)
{
$item = new FeedItem();
$item->title = $images->images[$i]->grid_reference." : ".$images->images[$i]->title;
$item->guid = $item->link = "http://{$_SERVER['HTTP_HOST']}/photo/{$images->images[$i]->gridimage_id}";
if (isset($images->images[$i]->dist_string) || isset($images->images[$i]->imagetakenString)) {
$item->description = $images->images[$i]->dist_string.($images->images[$i]->imagetakenString?' Taken: '.$images->images[$i]->imagetakenString:'')."<br/>".$images->images[$i]->comment;
$item->descriptionHtmlSyndicated = true;
} else {
$item->description = $images->images[$i]->comment;
}
if (!empty($images->images[$i]->imagetaken) && strpos($images->images[$i]->imagetaken,'-00') === FALSE) {
$item->imageTaken = $images->images[$i]->imagetaken;
}
$item->date = strtotime($images->images[$i]->submitted);
$item->source = "http://".$_SERVER['HTTP_HOST'].$images->images[$i]->profile_link;
$item->author = $images->images[$i]->realname;
if ($geoformat) {
$item->lat = $images->images[$i]->wgs84_lat;
$item->long = $images->images[$i]->wgs84_long;
}
if ($photoformat) {
$details = $images->images[$i]->getThumbnail(120,120,2);
$item->thumb = $details['server'].$details['url'];
$item->thumbTag = $details['html'];
if ($format == 'MEDIA') {
$item->content = $images->images[$i]->_getFullpath(true,true);
if ($opt_expand) {
$title=$images->images[$i]->grid_reference.' : '.htmlentities2($images->images[$i]->title).' by '.htmlentities2($images->images[$i]->realname);
$item->description = '<a href="'.$item->link.'" title="'.$title.'">'.$images->images[$i]->getThumbnail(120,120).'</a><br/>'. $item->description;
$item->descriptionHtmlSyndicated = true;
}
}
} elseif ($format == 'PHP') {
$item->thumb = $images->images[$i]->getThumbnail(120,120,true);
} elseif ($format == 'TOOLBAR') {
ob_start();
imagejpeg($images->images[$i]->getSquareThumb(16));
$item->thumbdata = ob_get_clean();
} elseif ($opt_expand) {
$title=$images->images[$i]->grid_reference.' : '.htmlentities2($images->images[$i]->title).' by '.htmlentities2($images->images[$i]->realname);
$item->description = '<a href="'.$item->link.'" title="'.$title.'">'.$images->images[$i]->getThumbnail(120,120).'</a><br/>'. $item->description;
$item->descriptionHtmlSyndicated = true;
}
//<license rdf:resource="http://creativecommons.org/licenses/by-sa/2.0/" />
if ($format == 'KML') {
$item->licence = "© Copyright <i class=\"attribution\">".htmlspecialchars($images->images[$i]->realname)."</i> and licensed for reuse under this <a rel=\"license\" href=\"http://creativecommons.org/licenses/by-sa/2.0/\">Creative Commons Licence</a>";
} else {
$item->licence = "http://creativecommons.org/licenses/by-sa/2.0/";
}
$rss->addItem($item);
}
//these are outputed by the rss class now!
#customExpiresHeader($rss_timeout,true); //we cache it for a while anyway!
#header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT");
$rss->saveFeed($format, $rssfile);
########################
/**
* Build a unique key for this search - critically ignore the apikey and other bogus parameters
*/
function getTextKey() {
$t = '';
foreach (array('text','q','location','BBOX','lat','lon','u') as $k) {
$t .= "|".(empty($_GET[$k])?'':$_GET[$k]);
}
return md5($t);
}
?>