www.gusucode.com > (自适应手机版)html5响应式影视文化公司源码 传播传媒企业通用类织梦模板(demo223) > (自适应手机版)html5响应式影视文化公司源码 传播传媒企业通用类织梦模板(demo223)/www2/include/dedehtml2.class.php
<?php if(!defined('DEDEINC')) exit("Request Error!"); /** * 织梦HTML解析类V1.6 PHP版 * function c____DedeHtml2(); * 这个类针对于采集程序,主要是获取某区域内的图片、超链接等信息 * * * @version $Id: dedehtml2.class.php 1 14:44 2010年7月6日Z tianya $ * @package DedeCMS.Libraries * @copyright Copyright (c) 2007 - 2010, DesDev, Inc. * @license http://help.dedecms.com/usersguide/license.html * @link http://www.dedecms.com */ // ------------------------------------------------------------------------ /** * 织梦HTML解析类V1.6 PHP版 * * @package DedeHtml2 * @subpackage DedeCMS.Libraries * @link http://www.dedecms.com */ class DedeHtml2 { var $CAtt; var $SourceHtml; var $Title; var $Medias; var $MediaInfos; var $Links; var $CharSet; var $BaseUrl; var $BaseUrlPath; var $HomeUrl; var $IsHead; var $ImgHeight; var $ImgWidth; var $GetLinkType; //构造函数 function __construct() { $this->CAtt = ''; $this->SourceHtml = ''; $this->Title = ''; $this->Medias = Array(); $this->MediaInfos = Array(); $this->Links = Array(); $this->BaseUrl = ''; $this->BaseUrlPath = ''; $this->HomeUrl = ''; $this->IsHead = false; $this->ImgHeight = 30; $this->ImgWidth = 50; $this->GetLinkType = 'link'; } function DedeHtml2() { $this->__construct(); } /** * 设置HTML的内容和来源网址 * * @access public * @param string $html html资源 * @param string $url 地址 * @param string $linktype 连接类型 * @return void */ function SetSource(&$html, $url = '', $linktype='') { $this->__construct(); $this->CAtt = new DedeAttribute2(); $url = trim($url); $this->SourceHtml = $html; $this->BaseUrl = $url; //判断文档相对于当前的路径 $urls = @parse_url($url); $this->HomeUrl = $urls['host']; $this->BaseUrlPath = $this->HomeUrl.$urls['path']; $this->BaseUrlPath = preg_replace("/\/([^\/]*)\.(.*)$/","/",$this->BaseUrlPath); $this->BaseUrlPath = preg_replace("/\/$/",'',$this->BaseUrlPath); if($linktype!='') { $this->GetLinkType = $linktype; } if($html != '') { $this->Analyser(); } } /** * 解析HTML * * @access private * @return void */ function Analyser() { $cAtt = new DedeAttribute2(); $cAtt->IsTagName = false; $c = ''; $i = 0; $startPos = 0; $endPos = 0; $wt = 0; $ht = 0; $scriptdd = 0; $attStr = ''; $tmpValue = ''; $tmpValue2 = ''; $tagName = ''; $hashead = 0; $slen = strlen($this->SourceHtml); if($this->GetLinkType=='link' || $this->GetLinkType=='') { $needTags = array('a'); } if($this->GetLinkType=='media') { $needTags = array('img','embed','a'); $this->IsHead = true; } $tagbreaks = array(' ','<','>',"\r","\n","\t"); for(;isset($this->SourceHtml[$i]);$i++) { if($this->SourceHtml[$i]=='<') { $tagName = ''; $j = 0; for($i=$i+1; isset($this->SourceHtml[$i]); $i++) { if($j>10) { break; } $j++; if( in_array($this->SourceHtml[$i],$tagbreaks) ) { break; } else { $tagName .= $this->SourceHtml[$i]; } } $tagName = strtolower($tagName); //标记为注解 if($tagName=='!--') { $endPos = strpos($this->SourceHtml,'-->',$i); if($endPos !== false) { $i=$endPos+3; } continue; } //标记在指定集合内 else if( in_array($tagName,$needTags) ) { $startPos = $i; $endPos = strpos($this->SourceHtml,'>',$i+1); if($endPos===false) { break; } $attStr = substr($this->SourceHtml,$i+1,$endPos-$startPos-1); $cAtt->SetSource($attStr); if($tagName=='img') { $this->InsertMedia($cAtt->GetAtt('src'),'img'); } else if($tagName=='embed') { $rurl = $this->InsertMedia($cAtt->GetAtt('src'),'embed'); if($rurl != '') { $this->MediaInfos[$rurl][0] = $cAtt->GetAtt('width'); $this->MediaInfos[$rurl][1] = $cAtt->GetAtt('height'); } } else if($tagName=='a') { $this->InsertLink($this->FillUrl($cAtt->GetAtt('href')),$this->GetInnerText($i,'a')); } } else { continue; } $i--; }//End if char }//End for if($this->Title == '') { $this->Title = $this->BaseUrl; } } /** * 重置资源 * * @access private * @return void */ function Clear() { $this->CAtt = ''; $this->SourceHtml = ''; $this->Title = ''; $this->Links = ''; $this->Medias = ''; $this->BaseUrl = ''; $this->BaseUrlPath = ''; } /** * 分析链接 * * @access public * @param string $url 地址 * @param string $mtype 媒体类型 * @return string */ function InsertMedia($url, $mtype) { if( preg_match("/^(javascript:|#|'|\")/", $url) ) { return ''; } if($url == '') { return ''; } $this->Medias[$url]=$mtype; return $url; } /** * 分析链接 * * @access public * @param string $url 地址 * @param string $atitle 文档 * @return string */ function InsertLink($url, $atitle) { if( preg_match("/^(javascript:|#|'|\")/", $url) ) { return ''; } if($url == '') { return ''; } if( preg_match('/^img:/', $atitle) ) { list($aimg, $atitle) = explode(':txt:', $atitle); if(!isset($this->Links[$url])) { if($atitle != '') { $this->Links[$url]['title'] = cn_substr($atitle,50); } else { $this->Links[$url]['title'] = preg_replace('/img:/', '', $aimg); } $this->Links[$url]['link'] = $url; } $this->Links[$url]['image'] = preg_replace('/img:/', '', $aimg); $this->InsertMedia($this->Links[$url]['image'], 'img'); } else { if(!isset($this->Links[$url])) { $this->Links[$url]['image'] = ''; $this->Links[$url]['title'] = $atitle; $this->Links[$url]['link'] = $url; } else { if(strlen($this->Links[$url]['title']) < strlen($atitle)) $this->Links[$url]['title'] = $atitle; } } return $url; } /** * 分析content-type中的字符类型 * * @access public * @param string $att 属性字符串 * @return string */ function ParCharSet($att) { $startdd=0; $taglen=0; $startdd = strpos($att,'='); if($startdd===false) { return ''; } else { $taglen = strlen($att)-$startdd-1; if($taglen<=0) { return ''; } return trim(substr($att, $startdd+1, $taglen)); } } /** * 补全相对网址 * * @access public * @param string $surl 地址 * @return string */ function FillUrl($surl) { $i = $pathStep = 0; $dstr = $pstr = $okurl = ''; $surl = trim($surl); if($surl == '') { return ''; } $pos = strpos($surl,'#'); if($pos>0) { $surl = substr($surl,0,$pos); } if($surl[0]=='/') { $okurl = $this->HomeUrl.'/'.$surl; } else if($surl[0]=='.') { if(!isset($surl[2])) { return ''; } else if($surl[0]=='/') { $okurl = $this->BaseUrlPath."/".substr($surl,2,strlen($surl)-2); } else { $urls = explode('/',$surl); foreach($urls as $u) { if($u=='..') { $pathStep++; } else if($i<count($urls)-1) { $dstr .= $urls[$i].'/'; } else { $dstr .= $urls[$i]; } $i++; } $urls = explode('/',$this->BaseUrlPath); if(count($urls) <= $pathStep) { return ''; } else { $pstr = ''; for($i=0;$i<count($urls)-$pathStep;$i++){ $pstr .= $urls[$i].'/'; } $okurl = $pstr.$dstr; } } } else { if( strlen($surl) < 7 ) { $okurl = $this->BaseUrlPath.'/'.$surl; } else if( strtolower(substr($surl,0,7))=='http://' ) { $okurl = preg_replace('/^http:\/\//i', '', $surl); } else { $okurl = $this->BaseUrlPath.'/'.$surl; } } $okurl = preg_replace('/\/{1,}/i', '/', $okurl); return 'http://'.$okurl; } /** * 获得和下一个标记之间的文本内容 * * @access public * @param string $pos 位置地址 * @param string $tagname 标签名称 * @return string */ function GetInnerText(&$pos,$tagname) { $startPos=0; $endPos=0; $textLen=0; $str = ''; $startPos = strpos($this->SourceHtml,'>',$pos); if($tagname=='title') { $endPos = strpos($this->SourceHtml,'<',$startPos); } else { $endPos1 = strpos($this->SourceHtml,'</a',$startPos); $endPos2 = strpos($this->SourceHtml,'</A',$startPos); if($endPos1===false) { $endPos = $endPos2; } else if($endPos2===false) { $endPos = $endPos1; } else { $endPos = ($endPos1 < $endPos2 ? $endPos1 : $endPos2 ); } } if($endPos > $startPos) { $textLen = $endPos-$startPos; $str = substr($this->SourceHtml,$startPos+1,$textLen-1); } $pos = $startPos + $textLen + strlen("</".$tagname) + 1; if($tagname=='title') { return trim($str); } else { preg_match_all("/<img(.*)src=[\"']{0,1}(.*)[\"']{0,1}[> \r\n\t]{1,}/isU",$str,$imgs); if(isset($imgs[2][0])) { $txt = trim(Html2Text($str)); $imgs[2][0] = preg_replace("/[\"']/",'',$imgs[2][0]); return "img:".$this->FillUrl($imgs[2][0]).':txt:'.$txt; } else { $str = strip_tags($str); //$str = preg_replace('/<\/(.*)$/i', '', $str); //$str = trim(preg_replace('/^(.*)>/i','',$str)); return $str; } } } }//End class /******************************* //属性解析器 function c____DedeAttribute2(); ********************************/ class DedeAttribute2 { var $SourceString = ''; var $SourceMaxSize = 1024; var $CharToLow = FALSE; //属性值是否不分大小写(属性名统一为小写) var $IsTagName = TRUE; //是否解析标记名称 var $Count = -1; var $Items = ''; //属性元素的集合 //设置属性解析器源字符串 function SetSource($str = '') { $this->Count = -1; $this->Items = ''; $strLen = 0; $this->SourceString = trim(preg_replace("/[ \t\r\n]{1,}/"," ",$str)); $strLen = strlen($this->SourceString); $this->SourceString .= " "; //增加一个空格结尾,以方便处理没有属性的标记 if($strLen>0&&$strLen<=$this->SourceMaxSize) { $this->PrivateAttParse(); } } //获得某个属性 function GetAtt($str) { if($str == '') { return ''; } $str = strtolower($str); if(isset($this->Items[$str])) { return $this->Items[$str]; } else { return ''; } } //判断属性是否存在 function IsAtt($str) { if($str == '') { return false; } $str = strtolower($str); if(isset($this->Items[$str])) { return true; } else { return false; } } //获得标记名称 function GetTagName() { return $this->GetAtt("tagname"); } // 获得属性个数 function GetCount() { return $this->Count+1; } //解析属性(仅给SetSource调用) function PrivateAttParse() { $d = ''; $tmpatt = ''; $tmpvalue = ''; $startdd = -1; $ddtag = ''; $strLen = strlen($this->SourceString); $j = 0; //这里是获得标记的名称 if($this->IsTagName) { //如果属性是注解,不再解析里面的内容,直接返回 if(isset($this->SourceString[2])) { if($this->SourceString[0].$this->SourceString[1].$this->SourceString[2]=='!--') { $this->Items['tagname'] = '!--'; return ; } } for($i=0;$i<$strLen;$i++) { $d = $this->SourceString[$i]; $j++; if(preg_match("/[ '\"\r\n\t]/i", $d)) { $this->Count++; $this->Items["tagname"]=strtolower(trim($tmpvalue)); $tmpvalue = ''; break; } else { $tmpvalue .= $d; } } if($j>0) { $j = $j-1; } } //遍历源字符串,获得各属性 for($i=$j;$i<$strLen;$i++) { $d = $this->SourceString[$i]; //获得属性的键 if($startdd==-1) { if($d!='=') { $tmpatt .= $d; } else { $tmpatt = strtolower(trim($tmpatt)); $startdd=0; } } //检测属性值是用什么包围的,允许使用 '' '' 或空白 else if($startdd==0) { switch($d) { case ' ': continue; break; case '\'': $ddtag='\''; $startdd=1; break; case '"': $ddtag='"'; $startdd=1; break; default: $tmpvalue.=$d; $ddtag=' '; $startdd=1; break; } } //获得属性的值 else if($startdd==1) { if($d==$ddtag) { $this->Count++; if($this->CharToLow) { $this->Items[$tmpatt] = strtolower(trim($tmpvalue)); } else { $this->Items[$tmpatt] = trim($tmpvalue); } $tmpatt = ''; $tmpvalue = ''; $startdd=-1; } else { $tmpvalue.=$d; } } }//End for //处理没有值的属性(必须放在结尾才有效)如:"input type=radio name=t1 value=aaa checked" if($tmpatt != '') { $this->Items[$tmpatt] = ''; } }//End Function PrivateAttParse }//End Class DedeAttribute2 ?>