X-Git-Url: https://vcs.fsf.org/?a=blobdiff_plain;f=functions%2Furl_parser.php;h=23eb8c9acdeb806013bd77cf6fcd81d25800835a;hb=96862638ef65bfd5438320fc30adf6edf5f1429d;hp=02181fbe972eddafc01b8587556775dbc2c22649;hpb=d6c32258c05219670ab3b4ae2d460d844ea9a247;p=squirrelmail.git diff --git a/functions/url_parser.php b/functions/url_parser.php index 02181fbe..23eb8c9a 100644 --- a/functions/url_parser.php +++ b/functions/url_parser.php @@ -3,13 +3,13 @@ /** * url_parser.php * - * Copyright (c) 1999-2003 The SquirrelMail Project Team + * Copyright (c) 1999-2004 The SquirrelMail Project Team * Licensed under the GNU GPL. For full terms see the file COPYING. * * This code provides various string manipulation functions that are * used by the rest of the Squirrelmail code. * - * $Id$ + * @version $Id$ * @package squirrelmail */ @@ -26,6 +26,10 @@ function replaceBlock (&$in, $replace, $start, $end) { * to be made to the pattern * Make sure that the expression is evaluated case insensitively * + * RFC2822 (and RFC822) defines the left side of an email address as (roughly): + * 1*atext *("." 1*atext) + * where atext is: a-zA-Z0-9!#$%&'*+-/=?^_`{|}~ + * * Here's pretty sophisticated IP matching: * $IPMatch = '(2[0-5][0-9]|1?[0-9]{1,2})'; * $IPMatch = '\[?' . $IPMatch . '(\.' . $IPMatch . '){3}\]?'; @@ -35,25 +39,35 @@ global $IP_RegExp_Match, $Host_RegExp_Match, $Email_RegExp_Match; $IP_RegExp_Match = '\\[?[0-9]{1,3}(\\.[0-9]{1,3}){3}\\]?'; $Host_RegExp_Match = '(' . $IP_RegExp_Match . '|[0-9a-z]([-.]?[0-9a-z])*\\.[a-z][a-z]+)'; -$Email_RegExp_Match = '[0-9a-z]([-_.+]?[0-9a-z])*(%' . $Host_RegExp_Match . - ')?@' . $Host_RegExp_Match; +$atext = '([a-z0-9!#$&%*+/=?^_`{|}~-]|&)'; +$dot_atom = $atext . '+(\.' . $atext . '+)*'; +$Email_RegExp_Match = $dot_atom . '(%' . $Host_RegExp_Match . ')?@' . + $Host_RegExp_Match; +/** + * Parses a body and converts all found email addresses to clickable links. + * + * @param string body the body to process, by ref + * @return int the number of unique addresses found + */ function parseEmail (&$body) { - global $color, $Email_RegExp_Match; + global $Email_RegExp_Match; $sbody = $body; $addresses = array(); /* Find all the email addresses in the body */ while(eregi($Email_RegExp_Match, $sbody, $regs)) { - $addresses[$regs[0]] = $regs[0]; + $addresses[$regs[0]] = strtr($regs[0], array('&' => '&')); $start = strpos($sbody, $regs[0]) + strlen($regs[0]); $sbody = substr($sbody, $start); } + /* Replace each email address with a compose URL */ - foreach ($addresses as $email) { - $comp_uri = makeComposeLink('src/compose.php?send_to='.urlencode($email), $email); - $body = str_replace($email, $comp_uri, $body); + foreach ($addresses as $text => $email) { + $comp_uri = makeComposeLink('src/compose.php?send_to='.urlencode($email), $text); + $body = str_replace($text, $comp_uri, $body); } + /* Return number of unique addresses found */ return count($addresses); } @@ -68,28 +82,44 @@ $url_parser_url_tokens = array( 'https://', 'ftp://', 'telnet:', // Special case -- doesn't need the slashes + 'mailto:', // Special case -- doesn't use the slashes 'gopher://', 'news://'); global $url_parser_poss_ends; -$url_parser_poss_ends = array(' ', "\n", "\r", '<', '>', ".\r", ".\n", - '. ', ' ', ')', '(', '"', '<', '>', '.<', +$url_parser_poss_ends = array(' ', "\n", "\r", '<', '>', ".\r", ".\n", + '. ', ' ', ')', '(', '"', '<', '>', '.<', ']', '[', '{', '}', "\240", ', ', '. ', ",\n", ",\r"); +/** + * rfc 2368 (mailto URL) preg_match() regexp + * @link http://www.ietf.org/rfc/rfc2368.txt + * @global string MailTo_PReg_Match the encapsulated regexp for preg_match() + */ +global $MailTo_PReg_Match; +$Mailto_Email_RegExp = '[0-9a-z%]([-_.+%]?[0-9a-z])*(%' . $Host_RegExp_Match . ')?@' . $Host_RegExp_Match; +$MailTo_PReg_Match = '/((?:' . $Mailto_Email_RegExp . ')*)((?:\?(?:to|cc|bcc|subject|body)=[^\s\?&=,()]+)?(?:&(?:to|cc|bcc|subject|body)=[^\s\?&=,()]+)*)/i'; + +/** + * Parses a body and converts all found URLs to clickable links. + * + * @param string body the body to process, by ref + * @return void + */ function parseUrl (&$body) { - global $url_parser_poss_ends, $url_parser_url_tokens;; + global $url_parser_poss_ends, $url_parser_url_tokens; $start = 0; $blength = strlen($body); - while ($start != $blength) { + while ($start < $blength) { $target_token = ''; $target_pos = $blength; /* Find the first token to replace */ foreach ($url_parser_url_tokens as $the_token) { $pos = strpos(strtolower($body), $the_token, $start); - if (is_int($pos) && $pos < $blength) { + if (is_int($pos) && $pos < $target_pos) { $target_pos = $pos; $target_token = $the_token; } @@ -105,6 +135,35 @@ function parseUrl (&$body) { } /* If there was a token to replace, replace it */ + if ($target_token == 'mailto:') { // rfc 2368 (mailto URL) + $target_pos += 7; //skip mailto: + $end = $blength; + + $mailto = substr($body, $target_pos, $end-$target_pos); + + global $MailTo_PReg_Match; + if ((preg_match($MailTo_PReg_Match, $mailto, $regs)) && ($regs[0] != '')) { + //sm_print_r($regs); + $mailto_before = $target_token . $regs[0]; + $mailto_params = $regs[10]; + if ($regs[1]) { //if there is an email addr before '?', we need to merge it with the params + $to = 'to=' . $regs[1]; + if (strpos($mailto_params, 'to=') > -1) //already a 'to=' + $mailto_params = str_replace('to=', $to . '%2C%20', $mailto_params); + else { + if ($mailto_params) //already some params, append to them + $mailto_params .= '&' . $to; + else + $mailto_params .= '?' . $to; + } + } + $url_str = str_replace(array('to=', 'cc=', 'bcc='), array('send_to=', 'send_to_cc=', 'send_to_bcc='), $mailto_params); + $comp_uri = makeComposeLink('src/compose.php' . $url_str, $mailto_before); + replaceBlock($body, $comp_uri, $target_pos - 7, $target_pos + strlen($regs[0])); + $target_pos += strlen($comp_uri) - 7; + } + } + else if ($target_token != '') { /* Find the end of the URL */ $end = $blength; @@ -140,5 +199,28 @@ function parseUrl (&$body) { $start = $target_pos; $blength = strlen($body); } -} -?> +} + +/** + * Parses a string and returns the first e-mail address found. + * + * @param string string the string to process + * @return string the first e-mail address found + */ +function getEmail($string) { + global $Email_RegExp_Match; + $addresses = array(); + + /* Find all the email addresses in the body */ + while (eregi($Email_RegExp_Match, $string, $regs)) { + $addresses[$regs[0]] = strtr($regs[0], array('&' => '&')); + $start = strpos($string, $regs[0]) + strlen($regs[0]); + $string = substr($string, $start); + } + + /* Return the first address, or an empty string if no address was found */ + $addresses = array_values($addresses); + return (array_key_exists(0, $addresses) ? $addresses[0] : ''); +} + +?> \ No newline at end of file