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-rw-r--r--actionpack/lib/action_dispatch/vendor/rack-1.1.pre/rack/showexceptions.rb349
1 files changed, 349 insertions, 0 deletions
diff --git a/actionpack/lib/action_dispatch/vendor/rack-1.1.pre/rack/showexceptions.rb b/actionpack/lib/action_dispatch/vendor/rack-1.1.pre/rack/showexceptions.rb
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+++ b/actionpack/lib/action_dispatch/vendor/rack-1.1.pre/rack/showexceptions.rb
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+require 'ostruct'
+require 'erb'
+require 'rack/request'
+require 'rack/utils'
+
+module Rack
+ # Rack::ShowExceptions catches all exceptions raised from the app it
+ # wraps. It shows a useful backtrace with the sourcefile and
+ # clickable context, the whole Rack environment and the request
+ # data.
+ #
+ # Be careful when you use this on public-facing sites as it could
+ # reveal information helpful to attackers.
+
+ class ShowExceptions
+ CONTEXT = 7
+
+ def initialize(app)
+ @app = app
+ @template = ERB.new(TEMPLATE)
+ end
+
+ def call(env)
+ @app.call(env)
+ rescue StandardError, LoadError, SyntaxError => e
+ backtrace = pretty(env, e)
+ [500,
+ {"Content-Type" => "text/html",
+ "Content-Length" => backtrace.join.size.to_s},
+ backtrace]
+ end
+
+ def pretty(env, exception)
+ req = Rack::Request.new(env)
+ path = (req.script_name + req.path_info).squeeze("/")
+
+ frames = exception.backtrace.map { |line|
+ frame = OpenStruct.new
+ if line =~ /(.*?):(\d+)(:in `(.*)')?/
+ frame.filename = $1
+ frame.lineno = $2.to_i
+ frame.function = $4
+
+ begin
+ lineno = frame.lineno-1
+ lines = ::File.readlines(frame.filename)
+ frame.pre_context_lineno = [lineno-CONTEXT, 0].max
+ frame.pre_context = lines[frame.pre_context_lineno...lineno]
+ frame.context_line = lines[lineno].chomp
+ frame.post_context_lineno = [lineno+CONTEXT, lines.size].min
+ frame.post_context = lines[lineno+1..frame.post_context_lineno]
+ rescue
+ end
+
+ frame
+ else
+ nil
+ end
+ }.compact
+
+ env["rack.errors"].puts "#{exception.class}: #{exception.message}"
+ env["rack.errors"].puts exception.backtrace.map { |l| "\t" + l }
+ env["rack.errors"].flush
+
+ [@template.result(binding)]
+ end
+
+ def h(obj) # :nodoc:
+ case obj
+ when String
+ Utils.escape_html(obj)
+ else
+ Utils.escape_html(obj.inspect)
+ end
+ end
+
+ # :stopdoc:
+
+# adapted from Django <djangoproject.com>
+# Copyright (c) 2005, the Lawrence Journal-World
+# Used under the modified BSD license:
+# http://www.xfree86.org/3.3.6/COPYRIGHT2.html#5
+TEMPLATE = <<'HTML'
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
+<html lang="en">
+<head>
+ <meta http-equiv="content-type" content="text/html; charset=utf-8" />
+ <meta name="robots" content="NONE,NOARCHIVE" />
+ <title><%=h exception.class %> at <%=h path %></title>
+ <style type="text/css">
+ html * { padding:0; margin:0; }
+ body * { padding:10px 20px; }
+ body * * { padding:0; }
+ body { font:small sans-serif; }
+ body>div { border-bottom:1px solid #ddd; }
+ h1 { font-weight:normal; }
+ h2 { margin-bottom:.8em; }
+ h2 span { font-size:80%; color:#666; font-weight:normal; }
+ h3 { margin:1em 0 .5em 0; }
+ h4 { margin:0 0 .5em 0; font-weight: normal; }
+ table {
+ border:1px solid #ccc; border-collapse: collapse; background:white; }
+ tbody td, tbody th { vertical-align:top; padding:2px 3px; }
+ thead th {
+ padding:1px 6px 1px 3px; background:#fefefe; text-align:left;
+ font-weight:normal; font-size:11px; border:1px solid #ddd; }
+ tbody th { text-align:right; color:#666; padding-right:.5em; }
+ table.vars { margin:5px 0 2px 40px; }
+ table.vars td, table.req td { font-family:monospace; }
+ table td.code { width:100%;}
+ table td.code div { overflow:hidden; }
+ table.source th { color:#666; }
+ table.source td {
+ font-family:monospace; white-space:pre; border-bottom:1px solid #eee; }
+ ul.traceback { list-style-type:none; }
+ ul.traceback li.frame { margin-bottom:1em; }
+ div.context { margin: 10px 0; }
+ div.context ol {
+ padding-left:30px; margin:0 10px; list-style-position: inside; }
+ div.context ol li {
+ font-family:monospace; white-space:pre; color:#666; cursor:pointer; }
+ div.context ol.context-line li { color:black; background-color:#ccc; }
+ div.context ol.context-line li span { float: right; }
+ div.commands { margin-left: 40px; }
+ div.commands a { color:black; text-decoration:none; }
+ #summary { background: #ffc; }
+ #summary h2 { font-weight: normal; color: #666; }
+ #summary ul#quicklinks { list-style-type: none; margin-bottom: 2em; }
+ #summary ul#quicklinks li { float: left; padding: 0 1em; }
+ #summary ul#quicklinks>li+li { border-left: 1px #666 solid; }
+ #explanation { background:#eee; }
+ #template, #template-not-exist { background:#f6f6f6; }
+ #template-not-exist ul { margin: 0 0 0 20px; }
+ #traceback { background:#eee; }
+ #requestinfo { background:#f6f6f6; padding-left:120px; }
+ #summary table { border:none; background:transparent; }
+ #requestinfo h2, #requestinfo h3 { position:relative; margin-left:-100px; }
+ #requestinfo h3 { margin-bottom:-1em; }
+ .error { background: #ffc; }
+ .specific { color:#cc3300; font-weight:bold; }
+ </style>
+ <script type="text/javascript">
+ //<!--
+ function getElementsByClassName(oElm, strTagName, strClassName){
+ // Written by Jonathan Snook, http://www.snook.ca/jon;
+ // Add-ons by Robert Nyman, http://www.robertnyman.com
+ var arrElements = (strTagName == "*" && document.all)? document.all :
+ oElm.getElementsByTagName(strTagName);
+ var arrReturnElements = new Array();
+ strClassName = strClassName.replace(/\-/g, "\\-");
+ var oRegExp = new RegExp("(^|\\s)" + strClassName + "(\\s|$$)");
+ var oElement;
+ for(var i=0; i<arrElements.length; i++){
+ oElement = arrElements[i];
+ if(oRegExp.test(oElement.className)){
+ arrReturnElements.push(oElement);
+ }
+ }
+ return (arrReturnElements)
+ }
+ function hideAll(elems) {
+ for (var e = 0; e < elems.length; e++) {
+ elems[e].style.display = 'none';
+ }
+ }
+ window.onload = function() {
+ hideAll(getElementsByClassName(document, 'table', 'vars'));
+ hideAll(getElementsByClassName(document, 'ol', 'pre-context'));
+ hideAll(getElementsByClassName(document, 'ol', 'post-context'));
+ }
+ function toggle() {
+ for (var i = 0; i < arguments.length; i++) {
+ var e = document.getElementById(arguments[i]);
+ if (e) {
+ e.style.display = e.style.display == 'none' ? 'block' : 'none';
+ }
+ }
+ return false;
+ }
+ function varToggle(link, id) {
+ toggle('v' + id);
+ var s = link.getElementsByTagName('span')[0];
+ var uarr = String.fromCharCode(0x25b6);
+ var darr = String.fromCharCode(0x25bc);
+ s.innerHTML = s.innerHTML == uarr ? darr : uarr;
+ return false;
+ }
+ //-->
+ </script>
+</head>
+<body>
+
+<div id="summary">
+ <h1><%=h exception.class %> at <%=h path %></h1>
+ <h2><%=h exception.message %></h2>
+ <table><tr>
+ <th>Ruby</th>
+ <td><code><%=h frames.first.filename %></code>: in <code><%=h frames.first.function %></code>, line <%=h frames.first.lineno %></td>
+ </tr><tr>
+ <th>Web</th>
+ <td><code><%=h req.request_method %> <%=h(req.host + path)%></code></td>
+ </tr></table>
+
+ <h3>Jump to:</h3>
+ <ul id="quicklinks">
+ <li><a href="#get-info">GET</a></li>
+ <li><a href="#post-info">POST</a></li>
+ <li><a href="#cookie-info">Cookies</a></li>
+ <li><a href="#env-info">ENV</a></li>
+ </ul>
+</div>
+
+<div id="traceback">
+ <h2>Traceback <span>(innermost first)</span></h2>
+ <ul class="traceback">
+<% frames.each { |frame| %>
+ <li class="frame">
+ <code><%=h frame.filename %></code>: in <code><%=h frame.function %></code>
+
+ <% if frame.context_line %>
+ <div class="context" id="c<%=h frame.object_id %>">
+ <% if frame.pre_context %>
+ <ol start="<%=h frame.pre_context_lineno+1 %>" class="pre-context" id="pre<%=h frame.object_id %>">
+ <% frame.pre_context.each { |line| %>
+ <li onclick="toggle('pre<%=h frame.object_id %>', 'post<%=h frame.object_id %>')"><%=h line %></li>
+ <% } %>
+ </ol>
+ <% end %>
+
+ <ol start="<%=h frame.lineno %>" class="context-line">
+ <li onclick="toggle('pre<%=h frame.object_id %>', 'post<%=h frame.object_id %>')"><%=h frame.context_line %><span>...</span></li></ol>
+
+ <% if frame.post_context %>
+ <ol start='<%=h frame.lineno+1 %>' class="post-context" id="post<%=h frame.object_id %>">
+ <% frame.post_context.each { |line| %>
+ <li onclick="toggle('pre<%=h frame.object_id %>', 'post<%=h frame.object_id %>')"><%=h line %></li>
+ <% } %>
+ </ol>
+ <% end %>
+ </div>
+ <% end %>
+ </li>
+<% } %>
+ </ul>
+</div>
+
+<div id="requestinfo">
+ <h2>Request information</h2>
+
+ <h3 id="get-info">GET</h3>
+ <% unless req.GET.empty? %>
+ <table class="req">
+ <thead>
+ <tr>
+ <th>Variable</th>
+ <th>Value</th>
+ </tr>
+ </thead>
+ <tbody>
+ <% req.GET.sort_by { |k, v| k.to_s }.each { |key, val| %>
+ <tr>
+ <td><%=h key %></td>
+ <td class="code"><div><%=h val.inspect %></div></td>
+ </tr>
+ <% } %>
+ </tbody>
+ </table>
+ <% else %>
+ <p>No GET data.</p>
+ <% end %>
+
+ <h3 id="post-info">POST</h3>
+ <% unless req.POST.empty? %>
+ <table class="req">
+ <thead>
+ <tr>
+ <th>Variable</th>
+ <th>Value</th>
+ </tr>
+ </thead>
+ <tbody>
+ <% req.POST.sort_by { |k, v| k.to_s }.each { |key, val| %>
+ <tr>
+ <td><%=h key %></td>
+ <td class="code"><div><%=h val.inspect %></div></td>
+ </tr>
+ <% } %>
+ </tbody>
+ </table>
+ <% else %>
+ <p>No POST data.</p>
+ <% end %>
+
+
+ <h3 id="cookie-info">COOKIES</h3>
+ <% unless req.cookies.empty? %>
+ <table class="req">
+ <thead>
+ <tr>
+ <th>Variable</th>
+ <th>Value</th>
+ </tr>
+ </thead>
+ <tbody>
+ <% req.cookies.each { |key, val| %>
+ <tr>
+ <td><%=h key %></td>
+ <td class="code"><div><%=h val.inspect %></div></td>
+ </tr>
+ <% } %>
+ </tbody>
+ </table>
+ <% else %>
+ <p>No cookie data.</p>
+ <% end %>
+
+ <h3 id="env-info">Rack ENV</h3>
+ <table class="req">
+ <thead>
+ <tr>
+ <th>Variable</th>
+ <th>Value</th>
+ </tr>
+ </thead>
+ <tbody>
+ <% env.sort_by { |k, v| k.to_s }.each { |key, val| %>
+ <tr>
+ <td><%=h key %></td>
+ <td class="code"><div><%=h val %></div></td>
+ </tr>
+ <% } %>
+ </tbody>
+ </table>
+
+</div>
+
+<div id="explanation">
+ <p>
+ You're seeing this error because you use <code>Rack::ShowExceptions</code>.
+ </p>
+</div>
+
+</body>
+</html>
+HTML
+
+ # :startdoc:
+ end
+end