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Jacques Distler a5e08f7bcc Rails_xss Plugin 
I installed the rails_xss plugin, for
the main purpose of seeing what will
break with Rails 3.0 (where the behaviour
of the plugin is the default). I think
I've fixed everything, but let me know if you
see stuff that is HTML-escaped, which
shouldn't be.

As a side benefit, we now use Erubis,
rather than ERB, to render templates.
They tell me it's faster ...
2010-05-26 00:27:49 -05:00

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<?xml version="1.0" encoding="iso-8859-1"?>
<!DOCTYPE html
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<head>
<title>Module: Erubis::Basic::Converter</title>
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<body>
<div id="classHeader">
<table class="header-table">
<tr class="top-aligned-row">
<td><strong>Module</strong></td>
<td class="class-name-in-header">Erubis::Basic::Converter</td>
</tr>
<tr class="top-aligned-row">
<td><strong>In:</strong></td>
<td>
<a href="../../../files/erubis/converter_rb.html">
erubis/converter.rb
</a>
<br />
</td>
</tr>
</table>
</div>
<!-- banner header -->
<div id="bodyContent">
<div id="contextContent">
<div id="description">
<p>
basic converter which supports &#8217;&lt;% &#8230; %&gt;&#8217; notation.
</p>
</div>
</div>
<div id="method-list">
<h3 class="section-bar">Methods</h3>
<div class="name-list">
<a href="#M000141">add_expr</a>&nbsp;&nbsp;
<a href="#M000140">convert_input</a>&nbsp;&nbsp;
<a href="#M000138">init_converter</a>&nbsp;&nbsp;
<a href="#M000139">pattern_regexp</a>&nbsp;&nbsp;
</div>
</div>
</div>
<!-- if includes -->
<div id="includes">
<h3 class="section-bar">Included Modules</h3>
<div id="includes-list">
<span class="include-name"><a href="../Converter.html">Erubis::Converter</a></span>
</div>
</div>
<div id="section">
<div id="constants-list">
<h3 class="section-bar">Constants</h3>
<div class="name-list">
<table summary="Constants">
<tr class="top-aligned-row context-row">
<td class="context-item-name">DEFAULT_REGEXP</td>
<td>=</td>
<td class="context-item-value">pattern_regexp('&lt;% %&gt;')</td>
<td width="3em">&nbsp;</td>
<td class="context-item-desc">
DEFAULT_REGEXP = /(.*?)(^[ \t]*)?&lt;%(=+|\#)?(.*?)-?%&gt;([ \t]*\r?\n)?/m
DEFAULT_REGEXP = /(^[ \t]*)?&lt;%(=+|\#)?(.*?)-?%&gt;([ \t]*\r?\n)?/m
DEFAULT_REGEXP = /&lt;%(=+|\#)?(.*?)-?%&gt;([ \t]*\r?\n)?/m
</td>
</tr>
</table>
</div>
</div>
<div id="attribute-list">
<h3 class="section-bar">Attributes</h3>
<div class="name-list">
<table>
<tr class="top-aligned-row context-row">
<td class="context-item-name">pattern</td>
<td class="context-item-value">&nbsp;[RW]&nbsp;</td>
<td class="context-item-desc"></td>
</tr>
<tr class="top-aligned-row context-row">
<td class="context-item-name">trim</td>
<td class="context-item-value">&nbsp;[RW]&nbsp;</td>
<td class="context-item-desc"></td>
</tr>
</table>
</div>
</div>
<!-- if method_list -->
<div id="methods">
<h3 class="section-bar">Public Instance methods</h3>
<div id="method-M000141" class="method-detail">
<a name="M000141"></a>
<div class="method-heading">
<a href="#M000141" class="method-signature">
<span class="method-name">add_expr</span><span class="method-args">(src, code, indicator)</span>
</a>
</div>
<div class="method-description">
<p>
add expression code to src
</p>
<p><a class="source-toggle" href="#"
onclick="toggleCode('M000141-source');return false;">[Source]</a></p>
<div class="method-source-code" id="M000141-source">
<pre>
<span class="ruby-comment cmt"># File erubis/converter.rb, line 176</span>
<span class="ruby-keyword kw">def</span> <span class="ruby-identifier">add_expr</span>(<span class="ruby-identifier">src</span>, <span class="ruby-identifier">code</span>, <span class="ruby-identifier">indicator</span>)
<span class="ruby-keyword kw">case</span> <span class="ruby-identifier">indicator</span>
<span class="ruby-keyword kw">when</span> <span class="ruby-value str">'='</span>
<span class="ruby-ivar">@escape</span> <span class="ruby-operator">?</span> <span class="ruby-identifier">add_expr_escaped</span>(<span class="ruby-identifier">src</span>, <span class="ruby-identifier">code</span>) <span class="ruby-operator">:</span> <span class="ruby-identifier">add_expr_literal</span>(<span class="ruby-identifier">src</span>, <span class="ruby-identifier">code</span>)
<span class="ruby-keyword kw">when</span> <span class="ruby-value str">'=='</span>
<span class="ruby-ivar">@escape</span> <span class="ruby-operator">?</span> <span class="ruby-identifier">add_expr_literal</span>(<span class="ruby-identifier">src</span>, <span class="ruby-identifier">code</span>) <span class="ruby-operator">:</span> <span class="ruby-identifier">add_expr_escaped</span>(<span class="ruby-identifier">src</span>, <span class="ruby-identifier">code</span>)
<span class="ruby-keyword kw">when</span> <span class="ruby-value str">'==='</span>
<span class="ruby-identifier">add_expr_debug</span>(<span class="ruby-identifier">src</span>, <span class="ruby-identifier">code</span>)
<span class="ruby-keyword kw">end</span>
<span class="ruby-keyword kw">end</span>
</pre>
</div>
</div>
</div>
<div id="method-M000140" class="method-detail">
<a name="M000140"></a>
<div class="method-heading">
<a href="#M000140" class="method-signature">
<span class="method-name">convert_input</span><span class="method-args">(src, input)</span>
</a>
</div>
<div class="method-description">
<p><a class="source-toggle" href="#"
onclick="toggleCode('M000140-source');return false;">[Source]</a></p>
<div class="method-source-code" id="M000140-source">
<pre>
<span class="ruby-comment cmt"># File erubis/converter.rb, line 127</span>
<span class="ruby-keyword kw">def</span> <span class="ruby-identifier">convert_input</span>(<span class="ruby-identifier">src</span>, <span class="ruby-identifier">input</span>)
<span class="ruby-identifier">pat</span> = <span class="ruby-ivar">@pattern</span>
<span class="ruby-identifier">regexp</span> = <span class="ruby-identifier">pat</span>.<span class="ruby-identifier">nil?</span> <span class="ruby-operator">||</span> <span class="ruby-identifier">pat</span> <span class="ruby-operator">==</span> <span class="ruby-value str">'&lt;% %&gt;'</span> <span class="ruby-operator">?</span> <span class="ruby-constant">DEFAULT_REGEXP</span> <span class="ruby-operator">:</span> <span class="ruby-identifier">pattern_regexp</span>(<span class="ruby-identifier">pat</span>)
<span class="ruby-identifier">pos</span> = <span class="ruby-value">0</span>
<span class="ruby-identifier">is_bol</span> = <span class="ruby-keyword kw">true</span> <span class="ruby-comment cmt"># is beginning of line</span>
<span class="ruby-identifier">input</span>.<span class="ruby-identifier">scan</span>(<span class="ruby-identifier">regexp</span>) <span class="ruby-keyword kw">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">indicator</span>, <span class="ruby-identifier">code</span>, <span class="ruby-identifier">tailch</span>, <span class="ruby-identifier">rspace</span><span class="ruby-operator">|</span>
<span class="ruby-identifier">match</span> = <span class="ruby-constant">Regexp</span>.<span class="ruby-identifier">last_match</span>()
<span class="ruby-identifier">len</span> = <span class="ruby-identifier">match</span>.<span class="ruby-identifier">begin</span>(<span class="ruby-value">0</span>) <span class="ruby-operator">-</span> <span class="ruby-identifier">pos</span>
<span class="ruby-identifier">text</span> = <span class="ruby-identifier">input</span>[<span class="ruby-identifier">pos</span>, <span class="ruby-identifier">len</span>]
<span class="ruby-identifier">pos</span> = <span class="ruby-identifier">match</span>.<span class="ruby-identifier">end</span>(<span class="ruby-value">0</span>)
<span class="ruby-identifier">ch</span> = <span class="ruby-identifier">indicator</span> <span class="ruby-value">? </span><span class="ruby-identifier">indicator</span>[<span class="ruby-value">0</span>] <span class="ruby-operator">:</span> <span class="ruby-keyword kw">nil</span>
<span class="ruby-identifier">lspace</span> = <span class="ruby-identifier">ch</span> <span class="ruby-operator">==</span> <span class="ruby-value">?=</span> <span class="ruby-operator">?</span> <span class="ruby-keyword kw">nil</span> <span class="ruby-operator">:</span> <span class="ruby-identifier">detect_spaces_at_bol</span>(<span class="ruby-identifier">text</span>, <span class="ruby-identifier">is_bol</span>)
<span class="ruby-identifier">is_bol</span> = <span class="ruby-identifier">rspace</span> <span class="ruby-value">? </span><span class="ruby-keyword kw">true</span> <span class="ruby-operator">:</span> <span class="ruby-keyword kw">false</span>
<span class="ruby-identifier">add_text</span>(<span class="ruby-identifier">src</span>, <span class="ruby-identifier">text</span>) <span class="ruby-keyword kw">if</span> <span class="ruby-identifier">text</span> <span class="ruby-operator">&amp;&amp;</span> <span class="ruby-operator">!</span><span class="ruby-identifier">text</span>.<span class="ruby-identifier">empty?</span>
<span class="ruby-comment cmt">## * when '&lt;%= %&gt;', do nothing</span>
<span class="ruby-comment cmt">## * when '&lt;% %&gt;' or '&lt;%# %&gt;', delete spaces iff only spaces are around '&lt;% %&gt;'</span>
<span class="ruby-keyword kw">if</span> <span class="ruby-identifier">ch</span> <span class="ruby-operator">==</span> <span class="ruby-value">?=</span> <span class="ruby-comment cmt"># &lt;%= %&gt;</span>
<span class="ruby-identifier">rspace</span> = <span class="ruby-keyword kw">nil</span> <span class="ruby-keyword kw">if</span> <span class="ruby-identifier">tailch</span> <span class="ruby-operator">&amp;&amp;</span> <span class="ruby-operator">!</span><span class="ruby-identifier">tailch</span>.<span class="ruby-identifier">empty?</span>
<span class="ruby-identifier">add_text</span>(<span class="ruby-identifier">src</span>, <span class="ruby-identifier">lspace</span>) <span class="ruby-keyword kw">if</span> <span class="ruby-identifier">lspace</span>
<span class="ruby-identifier">add_expr</span>(<span class="ruby-identifier">src</span>, <span class="ruby-identifier">code</span>, <span class="ruby-identifier">indicator</span>)
<span class="ruby-identifier">add_text</span>(<span class="ruby-identifier">src</span>, <span class="ruby-identifier">rspace</span>) <span class="ruby-keyword kw">if</span> <span class="ruby-identifier">rspace</span>
<span class="ruby-keyword kw">elsif</span> <span class="ruby-identifier">ch</span> <span class="ruby-operator">==</span> <span class="ruby-value">?\#</span> <span class="ruby-comment cmt"># &lt;%# %&gt;</span>
<span class="ruby-identifier">n</span> = <span class="ruby-identifier">code</span>.<span class="ruby-identifier">count</span>(<span class="ruby-value str">&quot;\n&quot;</span>) <span class="ruby-operator">+</span> (<span class="ruby-identifier">rspace</span> <span class="ruby-value">? </span><span class="ruby-value">1</span> <span class="ruby-operator">:</span> <span class="ruby-value">0</span>)
<span class="ruby-keyword kw">if</span> <span class="ruby-ivar">@trim</span> <span class="ruby-operator">&amp;&amp;</span> <span class="ruby-identifier">lspace</span> <span class="ruby-operator">&amp;&amp;</span> <span class="ruby-identifier">rspace</span>
<span class="ruby-identifier">add_stmt</span>(<span class="ruby-identifier">src</span>, <span class="ruby-value str">&quot;\n&quot;</span> <span class="ruby-operator">*</span> <span class="ruby-identifier">n</span>)
<span class="ruby-keyword kw">else</span>
<span class="ruby-identifier">add_text</span>(<span class="ruby-identifier">src</span>, <span class="ruby-identifier">lspace</span>) <span class="ruby-keyword kw">if</span> <span class="ruby-identifier">lspace</span>
<span class="ruby-identifier">add_stmt</span>(<span class="ruby-identifier">src</span>, <span class="ruby-value str">&quot;\n&quot;</span> <span class="ruby-operator">*</span> <span class="ruby-identifier">n</span>)
<span class="ruby-identifier">add_text</span>(<span class="ruby-identifier">src</span>, <span class="ruby-identifier">rspace</span>) <span class="ruby-keyword kw">if</span> <span class="ruby-identifier">rspace</span>
<span class="ruby-keyword kw">end</span>
<span class="ruby-keyword kw">elsif</span> <span class="ruby-identifier">ch</span> <span class="ruby-operator">==</span> <span class="ruby-value">?%</span> <span class="ruby-comment cmt"># &lt;%% %&gt;</span>
<span class="ruby-identifier">s</span> = <span class="ruby-node">&quot;#{lspace}#{@prefix||='&lt;%'}#{code}#{tailch}#{@postfix||='%&gt;'}#{rspace}&quot;</span>
<span class="ruby-identifier">add_text</span>(<span class="ruby-identifier">src</span>, <span class="ruby-identifier">s</span>)
<span class="ruby-keyword kw">else</span> <span class="ruby-comment cmt"># &lt;% %&gt;</span>
<span class="ruby-keyword kw">if</span> <span class="ruby-ivar">@trim</span> <span class="ruby-operator">&amp;&amp;</span> <span class="ruby-identifier">lspace</span> <span class="ruby-operator">&amp;&amp;</span> <span class="ruby-identifier">rspace</span>
<span class="ruby-identifier">add_stmt</span>(<span class="ruby-identifier">src</span>, <span class="ruby-node">&quot;#{lspace}#{code}#{rspace}&quot;</span>)
<span class="ruby-keyword kw">else</span>
<span class="ruby-identifier">add_text</span>(<span class="ruby-identifier">src</span>, <span class="ruby-identifier">lspace</span>) <span class="ruby-keyword kw">if</span> <span class="ruby-identifier">lspace</span>
<span class="ruby-identifier">add_stmt</span>(<span class="ruby-identifier">src</span>, <span class="ruby-identifier">code</span>)
<span class="ruby-identifier">add_text</span>(<span class="ruby-identifier">src</span>, <span class="ruby-identifier">rspace</span>) <span class="ruby-keyword kw">if</span> <span class="ruby-identifier">rspace</span>
<span class="ruby-keyword kw">end</span>
<span class="ruby-keyword kw">end</span>
<span class="ruby-keyword kw">end</span>
<span class="ruby-comment cmt">#rest = $' || input # ruby1.8</span>
<span class="ruby-identifier">rest</span> = <span class="ruby-identifier">pos</span> <span class="ruby-operator">==</span> <span class="ruby-value">0</span> <span class="ruby-operator">?</span> <span class="ruby-identifier">input</span> <span class="ruby-operator">:</span> <span class="ruby-identifier">input</span>[<span class="ruby-identifier">pos</span><span class="ruby-operator">..</span><span class="ruby-value">-1</span>] <span class="ruby-comment cmt"># ruby1.9</span>
<span class="ruby-identifier">add_text</span>(<span class="ruby-identifier">src</span>, <span class="ruby-identifier">rest</span>)
<span class="ruby-keyword kw">end</span>
</pre>
</div>
</div>
</div>
<div id="method-M000138" class="method-detail">
<a name="M000138"></a>
<div class="method-heading">
<a href="#M000138" class="method-signature">
<span class="method-name">init_converter</span><span class="method-args">(properties={})</span>
</a>
</div>
<div class="method-description">
<p><a class="source-toggle" href="#"
onclick="toggleCode('M000138-source');return false;">[Source]</a></p>
<div class="method-source-code" id="M000138-source">
<pre>
<span class="ruby-comment cmt"># File erubis/converter.rb, line 103</span>
<span class="ruby-keyword kw">def</span> <span class="ruby-identifier">init_converter</span>(<span class="ruby-identifier">properties</span>={})
<span class="ruby-keyword kw">super</span>(<span class="ruby-identifier">properties</span>)
<span class="ruby-ivar">@pattern</span> = <span class="ruby-identifier">properties</span>[<span class="ruby-identifier">:pattern</span>]
<span class="ruby-ivar">@trim</span> = <span class="ruby-identifier">properties</span>[<span class="ruby-identifier">:trim</span>] <span class="ruby-operator">!=</span> <span class="ruby-keyword kw">false</span>
<span class="ruby-keyword kw">end</span>
</pre>
</div>
</div>
</div>
<h3 class="section-bar">Protected Instance methods</h3>
<div id="method-M000139" class="method-detail">
<a name="M000139"></a>
<div class="method-heading">
<a href="#M000139" class="method-signature">
<span class="method-name">pattern_regexp</span><span class="method-args">(pattern)</span>
</a>
</div>
<div class="method-description">
<p>
return regexp of pattern to parse eRuby script
</p>
<p><a class="source-toggle" href="#"
onclick="toggleCode('M000139-source');return false;">[Source]</a></p>
<div class="method-source-code" id="M000139-source">
<pre>
<span class="ruby-comment cmt"># File erubis/converter.rb, line 112</span>
<span class="ruby-keyword kw">def</span> <span class="ruby-identifier">pattern_regexp</span>(<span class="ruby-identifier">pattern</span>)
<span class="ruby-ivar">@prefix</span>, <span class="ruby-ivar">@postfix</span> = <span class="ruby-identifier">pattern</span>.<span class="ruby-identifier">split</span>() <span class="ruby-comment cmt"># '&lt;% %&gt;' =&gt; '&lt;%', '%&gt;'</span>
<span class="ruby-comment cmt">#return /(.*?)(^[ \t]*)?#{@prefix}(=+|\#)?(.*?)-?#{@postfix}([ \t]*\r?\n)?/m</span>
<span class="ruby-comment cmt">#return /(^[ \t]*)?#{@prefix}(=+|\#)?(.*?)-?#{@postfix}([ \t]*\r?\n)?/m</span>
<span class="ruby-keyword kw">return</span> <span class="ruby-node">/#{@prefix}(=+|-|\#|%)?(.*?)([-=])?#{@postfix}([ \t]*\r?\n)?/</span><span class="ruby-identifier">m</span>
<span class="ruby-keyword kw">end</span>
</pre>
</div>
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<p><small><a href="http://validator.w3.org/check/referer">[Validate]</a></small></p>
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