URL地址合法性检查

haidong · 发表于 2010-2-24 13:33:39

这个类可以用来检查URL地址的合法性,目前支持ftp,file,http,https,gopher,news,nntp,telnet,wais. 功能: 检查URL的合法性 技术资料: Uniform Resource Locators (URL) http://info.internet.isi.edu/in-notes/rfc/files/rfc1738.txt Regex edition 0.12a http://www.cs.utah.edu/dept/old/texinfo/regex/regex_toc.html */ class urlcheck{ var $regex = array(//协议名(注意在这里必须写成小写) => 对应的正则表达式 "ftp" => "$this->ftpurl", "file" => "$this->fileurl", "http" => "$this->httpurl", "https" => "$this->httpurl", "gopher" => "$this->gopherurl", "news" => "$this->newsurl", "nntp" => "$this->nntpurl", "telnet" => "$this->telneturl", "wais" => "$this->waisurl" ); var $lowalpha; var $hialpha; var $alpha; var $digit; var $safe; var $extra; var $national; var $punctuation; var $reserved; var $hex; var $escape; var $unreserved; var $uchar; var $xchar; var $digits; var $urlpath; var $password; var $user; var $port; var $hostnumber; var $alphadigit; var $toplabel; var $domainlabel; var $hostname; var $host; var $hostport; var $login; //ftp var $ftptype; var $fsegment; var $fpath; var $ftpurl; //file var $fileurl; //http,https var $search; var $hsegment; var $hpath; var $httpurl; //gopher var $gopher_string; var $selector; var $gtype; var $gopherurl; //news var $article; var $group; var $grouppart; var $newsurl; //nntp var $nntpurl; //telnet var $telneturl; //wais var $wpath; var $wtype; var $database; var $waisdoc; var $waisindex; var $waisdatabase; var $waisurl; function check($url){ $pos = @strpos($url,":",1); if($pos<1) return false; $prot = substr($url,0,$pos); if(!isset($this->regex[$prot])) return false; eval("$regex = ".$this->regex[$prot].";"); return ereg("^".$regex."$",$url); } function urlcheck(){ $this->lowalpha = "[a-z]"; $this->hialpha = "[A-Z]"; $this->alpha = "(".$this->lowalpha."|".$this->hialpha.")"; $this->digit = "[0-9]"; $this->safe = "[$.+_-]"; $this->extra = "[*()\"!,]"; $this->national = "([{}|\^~`]|\\[|\\])"; $this->punctuation = "[<>#%"]"; $this->reserved = "[?;/

&=]"; $this->hex = "(".$this->digit."|[a-fA-F])"; $this->escape = "(%".$this->hex."{2})"; $this->unreserved = "(".$this->alpha."|".$this->digit."|".$this->safe."|".$this->extra.")"; $this->uchar = "(".$this->unreserved."|".$this->escape.")"; $this->xchar = "(".$this->unreserved."|".$this->reserved."|".$this->escape.")"; $this->digits = "(".$this->digit."+)"; $this->urlpath = "(".$this->xchar."*)"; $this->password = "((".$this->uchar."|[?;&=]".")*)"; $this->user = "((".$this->uchar."|[?;&=]".")*)"; $this->port = $this->digits; $this->hostnumber = "(".$this->digits.".".$this->digits.".".$this->digits.".".$this->digits.")"; $this->alphadigit = "(".$this->alpha."|".$this->digit.")"; $this->toplabel = "(".$this->alpha."|(".$this->alpha."(".$this->alphadigit."|-)*".$this->alphadigit."))"; $this->domainlabel = "(".$this->alphadigit."|(".$this->alphadigit."(".$this->alphadigit."|-)*".$this->alphadigit."))"; $this->hostname = "((".$this->domainlabel."\\.)*".$this->toplabel.")"; $this->host = "(".$this->hostname."|".$this->hostnumber.")"; $this->hostport = "(".$this->host."(:".$this->port.")?)"; $this->login = "((".$this->user."(:".$this->password.")?@)?".$this->hostport.")"; $this->ftptype = "[aidAID]"; $this->fsegment = "((".$this->uchar."|[?

&=])*)"; $this->fpath = "(".$this->fsegment."(/".$this->fsegment.")*)"; $this->ftpurl = "([fF][tT][pP]://".$this->login."(/".$this->fpath."(;[tT][yY][pP][eE]=".$this->ftptype.")?)?)"; $this->fileurl = "([fF][iI][lL][eE]://(".$this->host."|[lL][oO][cC][aA][lL][hH][oO][sS][tT])?/".$this->fpath.")"; $this->search = "((".$this->uchar."|[;

&=])*)"; $this->hsegment = "((".$this->uchar."|[;

&=])*)"; $this->hpath = "(".$this->hsegment."(/".$this->hsegment.")*)"; $this->httpurl = "([hH][tT][tT][pP][sS]?://".$this->hostport."(/".$this->hpath."([?]".$this->search.")?)?)"; $this->gopher_string = "(".$this->xchar."*)"; $this->selector = "(".$this->xchar."*)"; $this->gtype = $this->xchar; $this->gopherurl = "([gG][oO][pP][hH][eE][rR]://".$this->hostport."(/(".$this->gtype."(".$this->selector."(%09".$this->search."(%09".$this->gopher_string.")?)?)?)?)?)"; $this->article = "((".$this->uchar."|[;/?:&=])+@".$this->host.")"; $this->group = "(".$this->alpha."(".$this->alpha."|".$this->digit."|[-.+_])*)"; $this->grouppart = "(

|".$this->group."|".$this->article.")"; $this->newsurl = "([nN][eE][wW][sS]:".$this->grouppart.")"; $this->nntpurl = "([nN][nN][tT][pP]://".$this->hostport."/".$this->group."(/".$this->digits.")?)"; $this->telneturl = "([tT][eE][lL][nN][eE][tT]://".$this->login."/?)"; $this->wpath = "(".$this->uchar."*)"; $this->wtype = "(".$this->uchar."*)"; $this->database = "(".$this->uchar."*)"; $this->waisdoc = "([wW][aA][iI][sS]://".$this->hostport."/".$this->database."/".$this->wtype."/".$this->wpath.")"; $this->waisindex = "([wW][aA][iI][sS]://".$this->hostport."/".$this->database."[?]".$this->search.")"; $this->waisdatabase = "([wW][aA][iI][sS]://".$this->hostport."/".$this->database.")"; $this->waisurl = "(".$this->waisdatabase."|".$this->waisindex."|".$this->waisdoc.")"; } } /*测试 $urlcheck = new urlcheck(); $url = array( "ftp://localhost/test/a", "file://localhost/test/a", "http://localhost/test/a", "https://localhost/test/a", "gopher://localhost/test/a", "news:comp.os.linux", "nntp://localhost/test/12", "telnet://localhost/", "wais://localhost/db/type/path", "error" ); $count = count($url); for($i=0;$i<$count;$i++){ if($urlcheck->check($url[$i])) echo $url[$i]." ==> 合法 "; else echo $url[$i]." ==> 非法 "; } $waisurl = array( "wais://localhost/", "wais://localhost/db", "wais://localhost/db?a=b&c=d", "wais://localhost/db/type/path", "WAIS://localhost/db", "error", "\\", "wai://localhost/db", "wais://localhost/db/", "wais://localhost/db/type/path/ext" ); echo " ".$urlcheck->waisurl." 测试... -------------------------------------------------------------------------------- "; $count = count($waisurl); for($i=0;$i<$count;$i++){ if(ereg("^".$urlcheck->waisurl."$",$waisurl[$i])) echo $waisurl[$i]." ==> 合法 "; else echo $waisurl[$i]." ==> 非法 "; } $telneturl = array( "telnet://localhost", "telnet://localhost/", "TELNET://localhost", "telnet://guest:guest@localhost", "error", "\\", "telne://localhost" ); echo " ".$urlcheck->telneturl." 测试... -------------------------------------------------------------------------------- "; $count = count($telneturl); for($i=0;$i<$count;$i++){ if(ereg("^".$urlcheck->telneturl."$",$telneturl[$i])) echo $telneturl[$i]." ==> 合法 "; else echo $telneturl[$i]." ==> 非法 "; } $nntpurl = array( "nntp://localhost/php/12", "NNTP://localhost/php/12", "nntp://localhost:119/php/12", "nntp://localhost/php", "error", "\\", "nnt://localhost/php", "nntp://localhost/php/" ); echo " ".$urlcheck->nntpurl." 测试... -------------------------------------------------------------------------------- "; $count = count($nntpurl); for($i=0;$i<$count;$i++){ if(ereg("^".$urlcheck->nntpurl."$",$nntpurl[$i])) echo $nntpurl[$i]." ==> 合法 "; else echo $nntpurl[$i]." ==> 非法 "; } $newsurl = array( "news:123@localhost", "NEWS:123@localhost", "news:comp.os.linux", "news:*", "error", "\\", "news:http://www.phpchina.com/", "new:comp.os.linux", "news:" ); echo " ".$urlcheck->newsurl." 测试... -------------------------------------------------------------------------------- "; $count = count($newsurl); for($i=0;$i<$count;$i++){ if(ereg("^".$urlcheck->newsurl."$",$newsurl[$i])) echo $newsurl[$i]." ==> 合法 "; else echo $newsurl[$i]." ==> 非法 "; } $gopherurl = array( "gopher://phpchina.com", "gopher://phpchina.com/", "gopher://phpchina.com/atest%09search%09string", "GOPHER://phpcina.com/", "error", "\\", "goph://phpchina.com" ); echo " ".$urlcheck->gopherurl." 测试... -------------------------------------------------------------------------------- "; $count = count($gopherurl); for($i=0;$i<$count;$i++){ if(ereg("^".$urlcheck->gopherurl."$",$gopherurl[$i])) echo $gopherurl[$i]." ==> 合法 "; else echo $gopherurl[$i]." ==> 非法 "; } $httpurl = array( "http://www.phpchina.com", "http://www.phpchina.com/", "http://www.phpchina.com/default.php", "https://www.phpchina.com/", "HTTPS://www.phpchina.com/", "http://www.phpchina.com/?a=b&c=d", "error", "\\", "htt://www.phpchina.com/" ); echo " ".$urlcheck->httpurl." 测试... -------------------------------------------------------------------------------- "; $count = count($httpurl); for($i=0;$i<$count;$i++){ if(ereg("^".$urlcheck->httpurl."$",$httpurl[$i])) echo $httpurl[$i]." ==> 合法 "; else echo $httpurl[$i]." ==> 非法 "; } $fileurl = array( "file://localhost/", "FILE://localhost/tmp/", "file://ahost/test/", "error", "\\", "file://localhost" ); echo " ".$urlcheck->fileurl." 测试... -------------------------------------------------------------------------------- "; $count = count($fileurl); for($i=0;$i<$count;$i++){ if(ereg("^".$urlcheck->fileurl."$",$fileurl[$i])) echo $fileurl[$i]." ==> 合法 "; else echo $fileurl[$i]." ==> 非法 "; } $ftpurl = array( "ftp://www.phpchina.com", "ftp://www.phpchina.com/", "ftp://www.phpchina.com/test", "ftp://www.phpchina.com/test/", "ftp://www.phpchina.com/test/abc/aa", "ftp://www.phpchina.com:21", "ftp://www.phpchina.com:21/", "ftp://guest@www.phpchina.com/", "ftp://@www.phpchina.com/", "ftp://

www.phpchina.com/", "ftp://guest

www.phpchina.com/", "ftp://guest:guest@www.phpchina.com/", "ftp://guest:guest@www.phpchina.com:21", "Ftp://www.phpchina.com/", "ftp://www.phpchina.com/test;type=a", "ftp://www.phpchina.com/;type=a", "FTP://www.phpchina.com/;TYPE=A", "error", "\\", "ftp://", "www.phpchina.com", "ff://www.phpchina.com", "ftp://www.phpchina.com;type=a", "ftp://www.phpchina.com/;type=b" ); echo " ".$urlcheck->ftpurl." 测试... "; $count = count($ftpurl); for($i=0;$i<$count;$i++){ if(ereg("^".$urlcheck->ftpurl."$",$ftpurl[$i])) echo $ftpurl[$i]." ==> 合法 "; else echo $ftpurl[$i]." ==> 非法 "; } $login = array( "www.chinaasp.com", "www.phpchina.com", "202.101.17.181", "www.phpchina.com:80", "202.101.17.181:80", "guest@www.phpchina.com:80", "guest@202.101.17.181:80", "guest:guest@www.phpchina.com:80", "guest:guest@202.101.17.181:80", "guest

www.phpchina.com:80", "guest

202.101.17.181:80", "@www.phpchina.com:80", "@202.101.17.181:80", "error", "\\", "@", "guest@" ); echo " ".$urlcheck->login." 测试... -------------------------------------------------------------------------------- "; $count = count($login); for($i=0;$i<$count;$i++){ if(ereg("^".$urlcheck->login."$",$login[$i])) echo $login[$i]." ==> 合法 "; else echo $login[$i]." ==> 非法 "; } $hostport = array( "www.chinaasp.com", "www.phpchina.com", "202.101.17.181", "www.phpchina.com:80", "202.101.17.181:80", "error", "\\", "www.phpchina.com:abc" ); echo " ".$urlcheck->hostport." 测试... -------------------------------------------------------------------------------- "; $count = count($hostport); for($i=0;$i<$count;$i++){ if(ereg("^".$urlcheck->hostport."$",$hostport[$i])) echo $hostport[$i]." ==> 合法 "; else echo $hostport[$i]." ==> 非法 "; } $host = array( "www.chinaasp.com", "www.phpchina.com", "202.101.17.181", "error", "\\", "www.phpchina.com:80" ); echo " ".$urlcheck->host." 测试... -------------------------------------------------------------------------------- "; $count = count($host); for($i=0;$i<$count;$i++){ if(ereg("^".$urlcheck->host."$",$host[$i])) echo $host[$i]." ==> 合法 "; else echo $host[$i]." ==> 非法 "; } $hostname = array( "www.chinaasp.com", "www.phpchina.com", "1.a", "1.abc", "1.a-c", "1.ab-c", "1.a8-9", "1-2.a", "1-2.abc", "1-2.a-c", "1-2.ab-c", "1-2.a8-9", "1-2.1-2.a", "1-2.1-2.abc", "1-2.1-2.a-c", "1-2.1-2.ab-c", "1-2.1-2.a8-9", "a", "e", "z", "A", "E", "Z", "abc", "a-c", "ab-c", "ab-9", "a8-9", "error", "\\", "1", "123", "1a3", "1-3", "abc*", "!safa" ); echo " ".$urlcheck->hostname." 测试 -------------------------------------------------------------------------------- "; $count = count($hostname); for($i=0;$i<$count;$i++){ if(ereg("^".$urlcheck->hostname."$",$hostname[$i])) echo $hostname[$i]." ==> 合法 "; else echo $hostname[$i]." ==> 非法 "; } $hostnumber = array( "202.101.17.181", "127.0.0.1", "error", "\\", "202.101.17.", "202.101..", "202...", "....", "ab.cd.ef.gh" ); echo " ".$urlcheck->hostnumber." 测试... -------------------------------------------------------------------------------- "; $count = count($hostnumber); for($i=0;$i<$count;$i++){ if(ereg("^".$urlcheck->hostnumber."$",$hostnumber[$i])) echo $hostnumber[$i]." ==> 合法 "; else echo $hostnumber[$i]." ==> 非法 "; } $lowalpha = array( "a", "e", "z", "error", "\\", "A", "0", "ae" ); echo " ".$urlcheck->lowalpha." 测试... -------------------------------------------------------------------------------- "; $count = count($lowalpha); for($i=0;$i<$count;$i++){ if(ereg("^".$urlcheck->lowalpha."$",$lowalpha[$i])) echo $lowalpha[$i]." ==> 合法 "; else echo $lowalpha[$i]." ==> 非法 "; } $hialpha = array( "A", "E", "Z", "error", "\\", "a", "2", "AB" ); echo " ".$urlcheck->hialpha." 测试... -------------------------------------------------------------------------------- "; $count = count($hialpha); for($i=0;$i<$count;$i++){ if(ereg("^".$urlcheck->hialpha."$",$hialpha[$i])) echo $hialpha[$i]." ==> 合法 "; else echo $hialpha[$i]." ==> 非法 "; } $alpha = array( "a", "e", "z", "A", "E", "Z", "error", "\\", "ab", "AB", "1", "a1" ); echo " ".$urlcheck->alpha." 测试... -------------------------------------------------------------------------------- "; $count = count($alpha); for($i=0;$i<$count;$i++){ if(ereg("^".$urlcheck->alpha."$",$alpha[$i])) echo $alpha[$i]." ==> 合法 "; else echo $alpha[$i]." ==> 非法 "; } $digit = array( "0", "4", "9", "error", "\\", "12", "ab" ); echo " ".$urlcheck->digit." 测试... -------------------------------------------------------------------------------- "; $count = count($digit); for($i=0;$i<$count;$i++){ if(ereg("^".$urlcheck->digit."$",$digit[$i])) echo $digit[$i]." ==> 合法 "; else echo $digit[$i]." ==> 非法 "; } $hex = array( "0", "4", "9", "a", "e", "f", "A", "E", "F", "error", "\\", "01", "G", "g", "ab" ); echo " ".$urlcheck->hex." 测试... -------------------------------------------------------------------------------- "; $count = count($hex); for($i=0;$i<$count;$i++){ if(ereg("^".$urlcheck->hex."$",$hex[$i])) echo $hex[$i]." ==> 合法 "; else echo $hex[$i]." ==> 非法 "; } $digits = array( "0", "4", "9", "12", "124", "error", "\\", "", "a", "afasdf" ); echo " ".$urlcheck->digits." 测试... -------------------------------------------------------------------------------- "; $count = count($digits); for($i=0;$i<$count;$i++){ if(ereg("^".$urlcheck->digits."$",$digits[$i])) echo $digits[$i]." ==> 合法 "; else echo $digits[$i]." ==> 非法 "; } $xchar = array( "a", "e", "z", "A", "E", "Z", "0", "5", "9", "$", ".", "+", "_", "-", "*", "(", ")", "\"", "!", ",", "?", ";", "/", ":", "@", "&", "=", "%02", "%a0", "%af", "error", "\\", "ae", "AE", "$-", "*)", "?/", "%0z", "%az", "%abc", "%012" ); echo " ".$urlcheck->xchar." 测试... -------------------------------------------------------------------------------- "; $count = count($xchar); for($i=0;$i<$count;$i++){ if(ereg("^".$urlcheck->xchar."$",$xchar[$i])) echo $xchar[$i]." ==> 合法 "; else echo $xchar[$i]." ==> 非法 "; } $uchar = array( "a", "e", "z", "A", "E", "Z", "0", "5", "9", "$", ".", "+", "_", "-", "*", "(", ")", "\"", "!", "%02", "%a0", "%Af", "error", "\\", "ab", "Aa", "01", "$+", "(!", "%124", "%abc", "%az" ); echo " ".$urlcheck->uchar." 测试... -------------------------------------------------------------------------------- "; $count = count($uchar); for($i=0;$i<$count;$i++){ if(ereg("^".$urlcheck->uchar."$",$uchar[$i])) echo $uchar[$i]." ==> 合法 "; else echo $uchar[$i]." ==> 非法 "; } $unreserved = array( "a", "e", "z", "A", "E", "Z", "0", "5", "9", "$", ".", "+", "_", "-", "*", "(", ")", "\"", "!", ",", "error", "\\", "ab", "Ab", "01", "$.", "*(" ); echo " ".$urlcheck->unreserved." 测试... -------------------------------------------------------------------------------- "; $count = count($unreserved); for($i=0;$i<$count;$i++){ if(ereg("^".$urlcheck->unreserved."$",$unreserved[$i])) echo $unreserved[$i]." ==> 合法 "; else echo $unreserved[$i]." ==> 非法 "; } $reserved = array( ";", "/", "?", ":", "@", "&", "=", "error", "\\", "a", "==" ); echo " ".$urlcheck->reserved." 测试... -------------------------------------------------------------------------------- "; $count = count($reserved); for($i=0;$i<$count;$i++){ if(ereg("^".$urlcheck->reserved."$",$reserved[$i])) echo $reserved[$i]." ==> 合法 "; else echo $reserved[$i]." ==> 非法 "; } $punctuation = array( "<", ">", "#", "%", """, "error", "\\", "<<", ">>", "a" ); echo " ".$urlcheck->punctuation." 测试... -------------------------------------------------------------------------------- "; $count = count($punctuation); for($i=0;$i<$count;$i++){ if(ereg("^".$urlcheck->punctuation."$",$punctuation[$i])) echo $punctuation[$i]." ==> 合法 "; else echo $punctuation[$i]." ==> 非法 "; } $national = array( "{", "}", "|", "\\", "^", "~", "[", "]", "`", "error", "``", "^^" ); echo " ".$urlcheck->national." 测试... -------------------------------------------------------------------------------- "; $count = count($national); for($i=0;$i<$count;$i++){ if(ereg("^".$urlcheck->national."$",$national[$i])) echo $national[$i]." ==> 合法 "; else echo $national[$i]." ==> 非法 "; } $safe = array( "$", "-", "_", ".", "+", "error", "\\", "1", "$$" ); echo " ".$urlcheck->safe." 测试... -------------------------------------------------------------------------------- "; $count = count($safe); for($i=0;$i<$count;$i++){ if(ereg("^".$urlcheck->safe."$",$safe[$i])) echo $safe[$i]." ==> 合法 "; else echo $safe[$i]." ==> 非法 "; } $extra = array( "!", "*", "\"", "(", ")", ",", "error", "\\", "a" ); echo " ".$urlcheck->extra."测试... -------------------------------------------------------------------------------- "; $count = count($extra); for($i=0;$i<$count;$i++){ if(ereg("^".$urlcheck->extra."$",$extra[$i])) echo $extra[$i]." ==> 合法 "; else echo $extra[$i]." ==> 非法 "; } $escape = array( "%12", "%1a", "%A1", "error", "\\", "%az", "%123", "%abc" ); echo " ".$urlcheck->escape." 测试... -------------------------------------------------------------------------------- "; $count = count($escape); for($i=0;$i<$count;$i++){ if(ereg("^".$urlcheck->escape."$",$escape[$i])) echo $escape[$i]." ==> 合法 "; else echo $escape[$i]." ==> 非法 "; } */ ?>

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