From 7b1759d39b49baf3458443471feebef6081ba20a Mon Sep 17 00:00:00 2001 From: wlx Date: Thu, 18 Nov 2010 07:24:32 +0000 Subject: [PATCH] add service controller, which offer thumb, xml and search service. --- .../default/controllers/ServiceController.php | 429 ++++++++++++++++++ 1 file changed, 429 insertions(+) create mode 100644 application/default/controllers/ServiceController.php diff --git a/application/default/controllers/ServiceController.php b/application/default/controllers/ServiceController.php new file mode 100644 index 00000000..203c5d6b --- /dev/null +++ b/application/default/controllers/ServiceController.php @@ -0,0 +1,429 @@ +_helper->viewRenderer->setNoRender(); + $this->_helper->layout->disableLayout(); + } + + function preDispatch() + { + $this->db=Zend_Registry::get('db'); + $this->view->config = Zend_Registry::get('config'); + $this->messenger=$this->_helper->getHelper('FlashMessenger'); + $this->view->messages = $this->messenger->getMessages(); + } + + /* + * 返回XML源文件 + */ + function xmlAction() + { + $uuid=$this->_request->getParam('uuid'); + $row=$this->db->fetchRow("select xml.data from xml left join metadata on xml.id=metadata.id where metadata.uuid=?",array($uuid)); + $this->_helper->layout->disableLayout(); + $this->_helper->viewRenderer->setNoRender(); + $this->getResponse()->setHeader('Content-Type', 'text/xml') + ->setBody($row['data']); + } + /* + * 查看数据缩略图 + */ + function thumbAction() + { + $this->_helper->layout->disableLayout(); + $this->_helper->viewRenderer->setNoRender(); + $uuid = $this->_request->getParam('uuid'); + $thumb=$this->db->fetchRow("select t.data,t.filetype from thumbnail t left join metadata m on t.id=m.id where m.uuid=?",array($uuid)); + if (empty($thumb)) { + header("Content-Type:image/png"); + header("Content-Length: " . filesize("images/nothumb.png")); + $file=fopen("images/nothumb.png",'r'); + fpassthru($file); + } else { + header("Content-Type:image/".$thumb['filetype']); + print base64_decode($thumb['data']); + } + } + + /* + * 高级搜索, no page, json output + */ + function searchAction() + { + $this->view->addHelperPath('helper','Zend_View_Helper_'); + $this->_helper->layout->disableLayout(); + $this->_helper->viewRenderer->setNoRender(); + //$page=(int)$this->_request->getParam('page'); + //if (empty($page)) $page=1; + //$offset=$this->limit*($page-1); + $key=$this->_request->getParam('q'); + $n=(int)$this->_request->getParam('n'); + $s=(int)$this->_request->getParam('s'); + $e=(int)$this->_request->getParam('e'); + $w=(int)$this->_request->getParam('w'); + if (!(empty($n) && empty($key))) { + if (empty($n)) $n=90; + if (empty($s)) $s=-90; + if (empty($e)) $e=180; + if (empty($w)) $w=-180; + //$start=$this->_request->getParam('start'); + //$end=$this->_request->getParam('end'); + $sql="select id,uuid,description,filesize,fileformat from metadata where east? and north?"; + if (!empty($key)) { + $sql.= " and (title ilike ? or description ilike ?)"; + $sql.= " order by title"; + $rows=$this->db->fetchAll($sql,array($e,$w,$n,$s,'%'.$key.'%','%'.$key.'%')); + } else { + $sql.= " order by title"; + $rows=$this->db->fetchAll($sql,array($e,$w,$n,$s)); + } + $this->_helper->json($rows); + } + } + + /* + * 数据浏览 + */ + function browseAction() + { + $md=new MetadataTable(); + $db=$md->getAdapter(); + $page=(int)$this->_request->getParam('page'); + if (empty($page)) $page=1; + $limit=10; + $offset=$limit*($page-1); + $state=$db->query('select count(*) from metadata'); + $row=$state->fetchAll(); + $sum=$row[0]['count']; + $select=$db->select(); + $select->from('metadata','*')->order('title')->limitPage($page,$limit); + $this->view->metadata = $db->fetchAll($select); + $this->view->page=new Pagination($sum,$page,$limit); + } + + + /* + * 产生geojson数据 + */ + function jsonAction() + { + $md=new MetadataTable(); + $db=$md->getAdapter(); + $id = (int)$this->_request->getParam('id'); + $where=''; + if (!empty($id)) { $where=' where id='.$id; } + $sql='select id,uuid,west,south,north,east,title from metadata'.$where; + $state=$db->query($sql); + $rows=$state->fetchAll(); + $geomd=new GeoMetaData(); + foreach($rows as $row){ + if ($id) + $box=new GeoBox($row['west'],$row['south'],$row['east'],$row['north']); + else + $box=new GeoBoxLine($row['west'],$row['south'],$row['east'],$row['north']); + $feature=new Geofeature(); + $feature->id=$row['id']; + $feature->addProperties('title',$row['title']); + $feature->addProperties('uuid',$row['uuid']); + $feature->addProperties('id',$row['id']); + $feature->geometry=$box; + $geomd->addFeature($feature); + } + $this->_helper->json($geomd); + } + /* + * 时空动态浏览 + */ + function timemapAction() + { + $sql='select id,uuid,west,south,north,east,title,timebegin,timeend from metadata where timebegin is not null'; + $this->view->rows=$this->db->fetchAll($sql); + } + + function detailAction() + { + $id=(int)$this->_request->getParam('id'); + $xml=new XmlTable(); + $db=$xml->getAdapter(); + $where=$db->quoteInto('id=?',$id); + $order='id desc'; + $row=$xml->fetchRow($where,$order); + // Load the XML source + $xml = new DOMDocument; + $xml->loadXML($row->data); + $xsl = new DOMDocument; + $xsl->load($this->view->config->westdc->xsl); + // Configure the transformer + $proc = new XSLTProcessor; + $proc->importStyleSheet($xsl); // attach the xsl rules + $this->view->xml=$proc->transformToXML($xml); + //$this->_helper->layout->disableLayout(); + //$this->_helper->viewRenderer->setNoRender(); + //$this->getResponse()->setHeader('Content-Type', 'text/html') + // ->setBody($proc->transformToXML($xml)); + } + function feedAction() + { + $feedArray = array( + 'title' => '中国西部环境与生态科学数据中心', + 'link' => 'http://'.$_SERVER['SERVER_NAME'].'/data/feed', + 'description' => '共享西部计划产生的数据', + 'language' => 'zh-CN', + 'charset' => 'utf-8', + 'published' => time(), + //'generator' => 'Zend Framework Zend_Feed', + 'entries' => array() + ); + $sql="select * from metadata order by ts_created desc"; + $rs=$this->db->fetchAll($sql); + $feedArray['published']=strtotime($rs[0]['ts_created']); + foreach($rs as $r) + { + $feedArray['entries'][] = array( + 'title' => $r['title'], + 'link' => 'http://'.$_SERVER['SERVER_NAME'].'/data/' . $r['uuid'], + 'guid' => 'http://'.$_SERVER['SERVER_NAME'].'/data/' . $r['uuid'], + //'content'=>$r['description'], + 'description' => $r['description'], + 'lastUpdate' => strtotime($r['ts_created']) + ); + } + $feed = Zend_Feed::importArray($feedArray,'rss'); + $this->_helper->layout->disableLayout(); + $this->_helper->viewRenderer->setNoRender(); + $feed->send(); + } + + public function pingbackAction() + { + $this->_helper->ViewRenderer->setNoRender(); + $this->_helper->layout->disableLayout(); + $server = new Zend_XmlRpc_Server(); + $server->setClass('PingbackRpc', 'pingback'); + echo $server->handle(); + } + + public function pingtestAction() + { + $this->_helper->ViewRenderer->setNoRender(); + $this->_helper->layout->disableLayout(); + $client = new Zend_XmlRpc_Client('http://test.westgis.ac.cn/data/pingback'); + $arg1 = 'http://wlx.westgis.ac.cn/567/'; + $arg2 = 'http://test.westgis.ac.cn/data/487591d0-d437-4114-b810-cbef7c4ee4b2'; + //$result = $client->call('pingback.ping', array($arg1, $arg2)); + $test = $client->getProxy('pingback'); + $test->ping($arg1,$arg2); + //var_dump($result); + } + public function outputAction() + { + $this->_helper->layout->disableLayout(); + $this->_helper->viewRenderer->setNoRender(); + $sql="select title,datatype,filesize,id from metadata"; + $md=$this->db->fetchAll($sql); + foreach($md as $m) + { + print $m["title"].","; + print ($m["datatype"]?"内部":"公开").","; + print ($m["filesize"]==1?" ":$m["filesize"]).","; + $sql1="select keyword from keyword where id=".$m["id"]." and keytype='place'"; + $kd=$this->db->fetchAll($sql1); + foreach ($kd as $p) print $p["keyword"]." "; + print ","; + $sql1="select keyword from keyword where id=".$m["id"]." and keytype='temporal'"; + $kd=$this->db->fetchAll($sql1); + foreach ($kd as $p) print $p["keyword"]." "; + print ","; + print "
"; + } + + } + + /** + * parse the wiki syntax used to render tables, code modified from mediawiki + * + * @private + */ + function parseTable ( $text ) { + $lines = explode ( "\n" , $text ); + $td_history = array (); // Is currently a td tag open? + $last_tag_history = array (); // Save history of last lag activated (td, th or caption) + $tr_history = array (); // Is currently a tr tag open? + $tr_attributes = array (); // history of tr attributes + $has_opened_tr = array(); // Did this table open a element? + $indent_level = 0; // indent level of the table + foreach ( $lines as $key => $line ) + { + $line = trim ( $line ); + + if( $line == '' ) { // empty line, go to next line + continue; + } + $first_character = $line{0}; + $matches = array(); + + if ( preg_match( '/^(:*)\{\|(.*)$/' , $line , $matches ) ) { + // First check if we are starting a new table + $indent_level = strlen( $matches[1] ); + + $lines[$key] = str_repeat( '
' , $indent_level ) . ""; + array_push ( $td_history , false ); + array_push ( $last_tag_history , '' ); + array_push ( $tr_history , false ); + array_push ( $tr_attributes , '' ); + array_push ( $has_opened_tr , false ); + } else if ( count ( $td_history ) == 0 ) { + // Don't do any of the following + continue; + } else if ( substr ( $line , 0 , 2 ) == '|}' ) { + // We are ending a table + $line = '' . substr ( $line , 2 ); + $last_tag = array_pop ( $last_tag_history ); + + if ( !array_pop ( $has_opened_tr ) ) { + $line = "{$line}"; + } + + if ( array_pop ( $tr_history ) ) { + $line = "{$line}"; + } + + if ( array_pop ( $td_history ) ) { + $line = "{$line}"; + } + array_pop ( $tr_attributes ); + $lines[$key] = $line . str_repeat( '
' , $indent_level ); + } else if ( substr ( $line , 0 , 2 ) == '|-' ) { + // Now we have a table row + $line = preg_replace( '#^\|-+#', '', $line ); + + $line = ''; + $last_tag = array_pop ( $last_tag_history ); + array_pop ( $has_opened_tr ); + array_push ( $has_opened_tr , true ); + + if ( array_pop ( $tr_history ) ) { + $line = ''; + } + + if ( array_pop ( $td_history ) ) { + $line = "{$line}"; + } + + $lines[$key] = $line; + array_push ( $tr_history , false ); + array_push ( $td_history , false ); + array_push ( $last_tag_history , '' ); + } + else if ( $first_character == '|' || $first_character == '!' || substr ( $line , 0 , 2 ) == '|+' ) { + // This might be cell elements, td, th or captions + if ( substr ( $line , 0 , 2 ) == '|+' ) { + $first_character = '+'; + $line = substr ( $line , 1 ); + } + + $line = substr ( $line , 1 ); + + if ( $first_character == '!' ) { + $line = str_replace ( '!!' , '||' , $line ); + } + + // Split up multiple cells on the same line. + // FIXME : This can result in improper nesting of tags processed + // by earlier parser steps, but should avoid splitting up eg + // attribute values containing literal "||". + $cells = explode( '||' , $line ); + + $lines[$key] = ''; + + // Loop through each table cell + foreach ( $cells as $cell ) + { + $previous = ''; + if ( $first_character != '+' ) + { + $tr_after = array_pop ( $tr_attributes ); + if ( !array_pop ( $tr_history ) ) { + $previous = "\n"; + } + array_push ( $tr_history , true ); + array_push ( $tr_attributes , '' ); + array_pop ( $has_opened_tr ); + array_push ( $has_opened_tr , true ); + } + + $last_tag = array_pop ( $last_tag_history ); + + if ( array_pop ( $td_history ) ) { + $previous = "{$previous}"; + } + + if ( $first_character == '|' ) { + $last_tag = 'td'; + } else if ( $first_character == '!' ) { + $last_tag = 'th'; + } else if ( $first_character == '+' ) { + $last_tag = 'caption'; + } else { + $last_tag = ''; + } + + array_push ( $last_tag_history , $last_tag ); + + // A cell could contain both parameters and data + $cell_data = explode ( '|' , $cell , 2 ); + + // Bug 553: Note that a '|' inside an invalid link should not + // be mistaken as delimiting cell parameters + if ( strpos( $cell_data[0], '[[' ) !== false ) { + $cell = "{$previous}<{$last_tag}>{$cell}"; + } else if ( count ( $cell_data ) == 1 ) + $cell = "{$previous}<{$last_tag}>{$cell_data[0]}"; + else { + $cell = "{$previous}<{$last_tag}>{$cell_data[1]}"; + } + + $lines[$key] .= $cell; + array_push ( $td_history , true ); + } + } + } + + // Closing open td, tr && table + while ( count ( $td_history ) > 0 ) + { + if ( array_pop ( $td_history ) ) { + $lines[] = '' ; + } + if ( array_pop ( $tr_history ) ) { + $lines[] = '' ; + } + if ( !array_pop ( $has_opened_tr ) ) { + $lines[] = "" ; + } + + $lines[] = '' ; + } + + $output = implode ( "\n" , $lines ) ; + + //@todo:移除
中所有的换行符 + //可能存在问题 + $output=preg_replace('/([a-zA-Z])>\n/m','$1>',$output); + $output=preg_replace('/\n<\//m','\n\n" ) { + $output = ''; + } + + return $output; + } + +} +