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- Fix handling HTML entities when converting HTML to text (#1488212)

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pull/1/head
alecpl 13 years ago
parent 79db330983
commit ca0cd05973
3 changed files with 64 additions and 40 deletions
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1
CHANGELOG
Unescape Escape View File

@ -1,6 +1,7 @@
CHANGELOG Roundcube Webmail
===========================
- Fix handling HTML entities when converting HTML to text (#1488212)
- Fix fit_string_to_size() renders browser and ui unresponsive (#1488207)
- Fix handling of invalid characters in request (#1488124)
- Fix merging some configuration options in update.sh script (#1485864)

7
program/js/app.js
Unescape Escape View File

@ -5765,10 +5765,13 @@ function rcube_webmail()
});
};
this.plain2html = function(plainText, id)
this.plain2html = function(plain, id)
{
var lock = this.set_busy(true, 'converting');
$('#'+id).val(plainText ? '<pre>'+plainText+'</pre>' : '');
plain = plain.replace(/&/g, '&amp;').replace(/</g, '&lt;').replace(/>/g, '&gt;');
$('#'+id).val(plain ? '<pre>'+plain+'</pre>' : '');
this.set_busy(false, null, lock);
};

96
program/lib/html2text.php
Unescape Escape View File

@ -145,7 +145,6 @@ class html2text
var $search = array(
"/\r/", // Non-legal carriage return
"/[\n\t]+/", // Newlines and tabs
'/[ ]{2,}/', // Runs of spaces, pre-handling
'/<script[^>]*>.*?<\/script>/i', // <script>s -- which strip_tags supposedly has problems with
'/<style[^>]*>.*?<\/style>/i', // <style>s -- which strip_tags supposedly has problems with
'/<p[^>]*>/i', // <P>
@ -161,22 +160,6 @@ class html2text
'/(<table[^>]*>|<\/table>)/i', // <table> and </table>
'/(<tr[^>]*>|<\/tr>)/i', // <tr> and </tr>
'/<td[^>]*>(.*?)<\/td>/i', // <td> and </td>
'/&(nbsp|#160);/i', // Non-breaking space
'/&(quot|rdquo|ldquo|#8220|#8221|#147|#148);/i',
// Double quotes
'/&(apos|rsquo|lsquo|#8216|#8217);/i', // Single quotes
'/&gt;/i', // Greater-than
'/&lt;/i', // Less-than
'/&(copy|#169);/i', // Copyright
'/&(trade|#8482|#153);/i', // Trademark
'/&(reg|#174);/i', // Registered
'/&(mdash|#151|#8212);/i', // mdash
'/&(ndash|minus|#8211|#8722);/i', // ndash
'/&(bull|#149|#8226);/i', // Bullet
'/&(pound|#163);/i', // Pound sign
'/&(euro|#8364);/i', // Euro sign
'/&(amp|#38);/i', // Ampersand: see _converter()
'/[ ]{2,}/' // Runs of spaces, post-handling
);
/**
@ -189,7 +172,6 @@ class html2text
var $replace = array(
'', // Non-legal carriage return
' ', // Newlines and tabs
' ', // Runs of spaces, pre-handling
'', // <script>s -- which strip_tags supposedly has problems with
'', // <style>s -- which strip_tags supposedly has problems with
"\n\n", // <P>
@ -205,6 +187,43 @@ class html2text
"\n\n", // <table> and </table>
"\n", // <tr> and </tr>
"\t\t\\1\n", // <td> and </td>
);
/**
* List of preg* regular expression patterns to search for,
* used in conjunction with $ent_replace.
*
* @var array $ent_search
* @access public
* @see $ent_replace
*/
var $ent_search = array(
'/&(nbsp|#160);/i', // Non-breaking space
'/&(quot|rdquo|ldquo|#8220|#8221|#147|#148);/i',
// Double quotes
'/&(apos|rsquo|lsquo|#8216|#8217);/i', // Single quotes
'/&gt;/i', // Greater-than
'/&lt;/i', // Less-than
'/&(copy|#169);/i', // Copyright
'/&(trade|#8482|#153);/i', // Trademark
'/&(reg|#174);/i', // Registered
'/&(mdash|#151|#8212);/i', // mdash
'/&(ndash|minus|#8211|#8722);/i', // ndash
'/&(bull|#149|#8226);/i', // Bullet
'/&(pound|#163);/i', // Pound sign
'/&(euro|#8364);/i', // Euro sign
'/&(amp|#38);/i', // Ampersand: see _converter()
'/[ ]{2,}/', // Runs of spaces, post-handling
);
/**
* List of pattern replacements corresponding to patterns searched.
*
* @var array $ent_replace
* @access public
* @see $ent_search
*/
var $ent_replace = array(
' ', // Non-breaking space
'"', // Double quotes
"'", // Single quotes
@ -219,7 +238,7 @@ class html2text
'£',
'EUR', // Euro sign. € ?
'|+|amp|+|', // Ampersand: see _converter()
' ' // Runs of spaces, post-handling
' ', // Runs of spaces, post-handling
);
/**
@ -303,7 +322,7 @@ class html2text
* @see _build_link_list()
*/
var $_link_list = '';
/**
* Number of valid links detected in the text, used for plain text
* display (rendered similar to footnotes).
@ -314,15 +333,15 @@ class html2text
*/
var $_link_count = 0;
/**
* Boolean flag, true if a table of link URLs should be listed after the text.
*
* @var boolean $_do_links
* @access private
* @see html2text()
/**
* Boolean flag, true if a table of link URLs should be listed after the text.
*
* @var boolean $_do_links
* @access private
* @see html2text()
*/
var $_do_links = true;
/**
* Constructor.
*
@ -492,15 +511,21 @@ class html2text
// Convert <PRE>
$this->_convert_pre($text);
// Run our defined search-and-replace
// Run our defined tags search-and-replace
$text = preg_replace($this->search, $this->replace, $text);
// Run our defined tags search-and-replace with callback
$text = preg_replace_callback($this->callback_search, array('html2text', '_preg_callback'), $text);
// Strip any other HTML tags
$text = strip_tags($text, $this->allowed_tags);
// Run our defined entities/characters search-and-replace
$text = preg_replace($this->ent_search, $this->ent_replace, $text);
// Replace known html entities
$text = html_entity_decode($text, ENT_COMPAT, 'UTF-8');
// Run our defined search-and-replace with callback
$text = preg_replace_callback($this->callback_search, array('html2text', '_preg_callback'), $text);
// Remove unknown/unhandled entities (this cannot be done in search-and-replace block)
$text = preg_replace('/&([a-zA-Z0-9]{2,6}|#[0-9]{2,4});/', '', $text);
@ -508,15 +533,12 @@ class html2text
// This properly handles situation of "&amp;quot;" in input string
$text = str_replace('|+|amp|+|', '&', $text);
// Strip any other HTML tags
$text = strip_tags($text, $this->allowed_tags);
// Bring down number of empty lines to 2 max
$text = preg_replace("/\n\s+\n/", "\n\n", $text);
$text = preg_replace("/[\n]{3,}/", "\n\n", $text);
// remove leading empty lines (can be produced by eg. P tag on the beginning)
$text = preg_replace('/^\n+/', '', $text);
$text = ltrim($text, "\n");
// Wrap the text to a readable format
// for PHP versions >= 4.0.2. Default width is 75
@ -544,9 +566,7 @@ class html2text
if ( !$this->_do_links )
return $display;
if ( substr($link, 0, 7) == 'http://' || substr($link, 0, 8) == 'https://' ||
substr($link, 0, 7) == 'mailto:'
) {
if ( preg_match('!^(https?://|mailto:)!', $link) ) {
$this->_link_count++;
$this->_link_list .= '[' . $this->_link_count . "] $link\n";
$additional = ' [' . $this->_link_count . ']';

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