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<html>
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<title>pylons.middleware</title>
</head>
<body>
pylons.middleware
<style>
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div.coverage div { clear: both; height: 1.1em}
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<div class="stats">
Covered: 156 lines<br/>
Missed: 0 lines<br/>
Skipped 40 lines<br/>
Percent: 100 %<br/>
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<div class="coverage">
<div class="cov"><span class="num"><pre> 1</pre></span><pre>"""Pylons' WSGI middlewares"""</pre></div>
<div class="cov"><span class="num"><pre> 2</pre></span><pre>import logging</pre></div>
<div class="cov"><span class="num"><pre> 3</pre></span><pre>import os.path</pre></div>
<div class="skip"><span class="num"><pre> 4</pre></span><pre></pre></div>
<div class="cov"><span class="num"><pre> 5</pre></span><pre>from paste.deploy.converters import asbool</pre></div>
<div class="cov"><span class="num"><pre> 6</pre></span><pre>from paste.urlparser import StaticURLParser</pre></div>
<div class="cov"><span class="num"><pre> 7</pre></span><pre>from weberror.evalexception import EvalException</pre></div>
<div class="cov"><span class="num"><pre> 8</pre></span><pre>from weberror.errormiddleware import ErrorMiddleware</pre></div>
<div class="cov"><span class="num"><pre> 9</pre></span><pre>from webob import Request, Response</pre></div>
<div class="cov"><span class="num"><pre> 10</pre></span><pre>from webhelpers.html import literal</pre></div>
<div class="skip"><span class="num"><pre> 11</pre></span><pre></pre></div>
<div class="cov"><span class="num"><pre> 12</pre></span><pre>import pylons</pre></div>
<div class="cov"><span class="num"><pre> 13</pre></span><pre>from pylons.error import template_error_formatters</pre></div>
<div class="cov"><span class="num"><pre> 14</pre></span><pre>from pylons.util import call_wsgi_application</pre></div>
<div class="skip"><span class="num"><pre> 15</pre></span><pre></pre></div>
<div class="cov"><span class="num"><pre> 16</pre></span><pre>__all__ = ['ErrorHandler', 'StaticJavascripts', 'error_document_template',</pre></div>
<div class="cov"><span class="num"><pre> 17</pre></span><pre> 'footer_html', 'head_html', 'media_path']</pre></div>
<div class="skip"><span class="num"><pre> 18</pre></span><pre></pre></div>
<div class="cov"><span class="num"><pre> 19</pre></span><pre>log = logging.getLogger(__name__)</pre></div>
<div class="skip"><span class="num"><pre> 20</pre></span><pre></pre></div>
<div class="cov"><span class="num"><pre> 21</pre></span><pre>media_path = os.path.join(os.path.dirname(__file__), 'media')</pre></div>
<div class="skip"><span class="num"><pre> 22</pre></span><pre></pre></div>
<div class="cov"><span class="num"><pre> 23</pre></span><pre>head_html = """\</pre></div>
<div class="cov"><span class="num"><pre> 24</pre></span><pre><link rel="stylesheet" href="{{prefix}}/media/pylons/style/itraceback.css" \</pre></div>
<div class="cov"><span class="num"><pre> 25</pre></span><pre>type="text/css" media="screen" />"""</pre></div>
<div class="skip"><span class="num"><pre> 26</pre></span><pre></pre></div>
<div class="cov"><span class="num"><pre> 27</pre></span><pre>footer_html = """\</pre></div>
<div class="cov"><span class="num"><pre> 28</pre></span><pre><script src="{{prefix}}/media/pylons/javascripts/traceback.js"></script></pre></div>
<div class="cov"><span class="num"><pre> 29</pre></span><pre><script></pre></div>
<div class="cov"><span class="num"><pre> 30</pre></span><pre>var TRACEBACK = {</pre></div>
<div class="cov"><span class="num"><pre> 31</pre></span><pre> uri: "{{prefix}}",</pre></div>
<div class="cov"><span class="num"><pre> 32</pre></span><pre> host: "%s",</pre></div>
<div class="cov"><span class="num"><pre> 33</pre></span><pre> traceback: "/tracebacks"</pre></div>
<div class="cov"><span class="num"><pre> 34</pre></span><pre>}</pre></div>
<div class="cov"><span class="num"><pre> 35</pre></span><pre></script></pre></div>
<div class="cov"><span class="num"><pre> 36</pre></span><pre><div id="service_widget"></pre></div>
<div class="cov"><span class="num"><pre> 37</pre></span><pre><h2 class="assistance">Online Assistance</h2></pre></div>
<div class="cov"><span class="num"><pre> 38</pre></span><pre><div id="nv"></pre></div>
<div class="cov"><span class="num"><pre> 39</pre></span><pre><ul id="supportnav"></pre></div>
<div class="cov"><span class="num"><pre> 40</pre></span><pre> <li class="nav active"><a class="overview" href="#">Overview</a></li></pre></div>
<div class="cov"><span class="num"><pre> 41</pre></span><pre> <li class="nav"><a class="search" href="#">Search Mail Lists</a></li></pre></div>
<div class="cov"><span class="num"><pre> 42</pre></span><pre> <li class="nav"><a class="posttraceback" href="#">Post Traceback</a></li></pre></div>
<div class="cov"><span class="num"><pre> 43</pre></span><pre></ul></pre></div>
<div class="cov"><span class="num"><pre> 44</pre></span><pre></div></pre></div>
<div class="cov"><span class="num"><pre> 45</pre></span><pre><div class="clearfix">&nbsp;</div></pre></div>
<div class="cov"><span class="num"><pre> 46</pre></span><pre><div class="overviewtab"></pre></div>
<div class="cov"><span class="num"><pre> 47</pre></span><pre><b>Looking for help?</b></pre></div>
<div class="skip"><span class="num"><pre> 48</pre></span><pre></pre></div>
<div class="cov"><span class="num"><pre> 49</pre></span><pre><p>Here are a few tips for troubleshooting if the above traceback isn't</pre></div>
<div class="cov"><span class="num"><pre> 50</pre></span><pre>helping out.</p></pre></div>
<div class="skip"><span class="num"><pre> 51</pre></span><pre></pre></div>
<div class="cov"><span class="num"><pre> 52</pre></span><pre><ol></pre></div>
<div class="cov"><span class="num"><pre> 53</pre></span><pre><li>Search the mail list</li></pre></div>
<div class="cov"><span class="num"><pre> 54</pre></span><pre><li>Post the traceback, and ask for help on IRC</li></pre></div>
<div class="cov"><span class="num"><pre> 55</pre></span><pre><li>Post a message to the mail list, referring to the posted traceback</li></pre></div>
<div class="skip"><span class="num"><pre> 56</pre></span><pre></pre></div>
<div class="cov"><span class="num"><pre> 57</pre></span><pre></div></pre></div>
<div class="cov"><span class="num"><pre> 58</pre></span><pre><div class="posttracebacktab"></pre></div>
<div class="cov"><span class="num"><pre> 59</pre></span><pre><p><b>Note:</b> Clicking this button will post your traceback to the PylonsHQ website.</pre></div>
<div class="cov"><span class="num"><pre> 60</pre></span><pre>The traceback includes the module names, Python version, and lines of code that you</pre></div>
<div class="cov"><span class="num"><pre> 61</pre></span><pre>can see above. All tracebacks are posted anonymously unless you're logged into the</pre></div>
<div class="cov"><span class="num"><pre> 62</pre></span><pre>PylonsHQ website in this browser.</p></pre></div>
<div class="cov"><span class="num"><pre> 63</pre></span><pre><input type="button" href="#" class="submit_traceback" value="Send TraceBack to PylonsHQ" style="text-align: center;"/></pre></div>
<div class="cov"><span class="num"><pre> 64</pre></span><pre></div></pre></div>
<div class="skip"><span class="num"><pre> 65</pre></span><pre></pre></div>
<div class="cov"><span class="num"><pre> 66</pre></span><pre><div class="searchtab"></pre></div>
<div class="cov"><span class="num"><pre> 67</pre></span><pre><p>The following mail lists will be searched:<br /></pre></div>
<div class="cov"><span class="num"><pre> 68</pre></span><pre><input type="checkbox" name="lists" value="pylons" checked="checked" /> Pylons<br /></pre></div>
<div class="cov"><span class="num"><pre> 69</pre></span><pre><input type="checkbox" name="lists" value="python" /> Python<br /></pre></div>
<div class="cov"><span class="num"><pre> 70</pre></span><pre><input type="checkbox" name="lists" value="mako" /> Mako<br /></pre></div>
<div class="cov"><span class="num"><pre> 71</pre></span><pre><input type="checkbox" name="lists" value="sqlalchemy" /> SQLAlchemy</p></pre></div>
<div class="cov"><span class="num"><pre> 72</pre></span><pre><p class="query">for: <input type="text" name="query" class="query" /></p></pre></div>
<div class="skip"><span class="num"><pre> 73</pre></span><pre></pre></div>
<div class="cov"><span class="num"><pre> 74</pre></span><pre><p><input type="submit" value="Search" /></p></pre></div>
<div class="cov"><span class="num"><pre> 75</pre></span><pre><div class="searchresults"></pre></div>
<div class="skip"><span class="num"><pre> 76</pre></span><pre></pre></div>
<div class="cov"><span class="num"><pre> 77</pre></span><pre></div></pre></div>
<div class="cov"><span class="num"><pre> 78</pre></span><pre></div></pre></div>
<div class="skip"><span class="num"><pre> 79</pre></span><pre></pre></div>
<div class="cov"><span class="num"><pre> 80</pre></span><pre></div></pre></div>
<div class="cov"><span class="num"><pre> 81</pre></span><pre><div id="pylons_logo">\</pre></div>
<div class="cov"><span class="num"><pre> 82</pre></span><pre><img src="{{prefix}}/media/pylons/img/pylons-powered-02.png" /></div></pre></div>
<div class="cov"><span class="num"><pre> 83</pre></span><pre><div class="credits">Pylons version %s</div>"""</pre></div>
<div class="skip"><span class="num"><pre> 84</pre></span><pre></pre></div>
<div class="cov"><span class="num"><pre> 85</pre></span><pre>report_libs = ['pylons', 'genshi', 'sqlalchemy']</pre></div>
<div class="skip"><span class="num"><pre> 86</pre></span><pre></pre></div>
<div class="cov"><span class="num"><pre> 87</pre></span><pre>def ErrorHandler(app, global_conf, **errorware):</pre></div>
<div class="cov"><span class="num"><pre> 88</pre></span><pre> """ErrorHandler Toggle</pre></div>
<div class="skip"><span class="num"><pre> 89</pre></span><pre> </pre></div>
<div class="cov"><span class="num"><pre> 90</pre></span><pre> If debug is enabled, this function will return the app wrapped in</pre></div>
<div class="cov"><span class="num"><pre> 91</pre></span><pre> the WebError ``EvalException`` middleware which displays</pre></div>
<div class="cov"><span class="num"><pre> 92</pre></span><pre> interactive debugging sessions when a traceback occurs.</pre></div>
<div class="skip"><span class="num"><pre> 93</pre></span><pre> </pre></div>
<div class="cov"><span class="num"><pre> 94</pre></span><pre> Otherwise, the app will be wrapped in the WebError</pre></div>
<div class="cov"><span class="num"><pre> 95</pre></span><pre> ``ErrorMiddleware``, and the ``errorware`` dict will be passed into</pre></div>
<div class="cov"><span class="num"><pre> 96</pre></span><pre> it. The ``ErrorMiddleware`` handles sending an email to the address</pre></div>
<div class="cov"><span class="num"><pre> 97</pre></span><pre> listed in the .ini file, under ``email_to``.</pre></div>
<div class="skip"><span class="num"><pre> 98</pre></span><pre> </pre></div>
<div class="cov"><span class="num"><pre> 99</pre></span><pre> """</pre></div>
<div class="cov"><span class="num"><pre>100</pre></span><pre> if asbool(global_conf.get('debug')):</pre></div>
<div class="cov"><span class="num"><pre>101</pre></span><pre> footer = footer_html % (pylons.config.get('traceback_host', </pre></div>
<div class="cov"><span class="num"><pre>102</pre></span><pre> 'pylonshq.com'),</pre></div>
<div class="cov"><span class="num"><pre>103</pre></span><pre> pylons.__version__)</pre></div>
<div class="cov"><span class="num"><pre>104</pre></span><pre> py_media = dict(pylons=media_path)</pre></div>
<div class="cov"><span class="num"><pre>105</pre></span><pre> app = EvalException(app, global_conf, </pre></div>
<div class="cov"><span class="num"><pre>106</pre></span><pre> templating_formatters=template_error_formatters,</pre></div>
<div class="cov"><span class="num"><pre>107</pre></span><pre> media_paths=py_media, head_html=head_html, </pre></div>
<div class="cov"><span class="num"><pre>108</pre></span><pre> footer_html=footer,</pre></div>
<div class="cov"><span class="num"><pre>109</pre></span><pre> libraries=report_libs)</pre></div>
<div class="cov"><span class="num"><pre>110</pre></span><pre> else:</pre></div>
<div class="cov"><span class="num"><pre>111</pre></span><pre> app = ErrorMiddleware(app, global_conf, **errorware)</pre></div>
<div class="cov"><span class="num"><pre>112</pre></span><pre> return app</pre></div>
<div class="skip"><span class="num"><pre>113</pre></span><pre></pre></div>
<div class="skip"><span class="num"><pre>114</pre></span><pre></pre></div>
<div class="cov"><span class="num"><pre>115</pre></span><pre>class StatusCodeRedirect(object):</pre></div>
<div class="cov"><span class="num"><pre>116</pre></span><pre> """Internally redirects a request based on status code</pre></div>
<div class="skip"><span class="num"><pre>117</pre></span><pre> </pre></div>
<div class="cov"><span class="num"><pre>118</pre></span><pre> StatusCodeRedirect watches the response of the app it wraps. If the </pre></div>
<div class="cov"><span class="num"><pre>119</pre></span><pre> response is an error code in the errors sequence passed the request</pre></div>
<div class="cov"><span class="num"><pre>120</pre></span><pre> will be re-run with the path URL set to the path passed in.</pre></div>
<div class="skip"><span class="num"><pre>121</pre></span><pre> </pre></div>
<div class="cov"><span class="num"><pre>122</pre></span><pre> This operation is non-recursive and the output of the second </pre></div>
<div class="cov"><span class="num"><pre>123</pre></span><pre> request will be used no matter what it is.</pre></div>
<div class="skip"><span class="num"><pre>124</pre></span><pre> </pre></div>
<div class="cov"><span class="num"><pre>125</pre></span><pre> Should an application wish to bypass the error response (ie, to </pre></div>
<div class="cov"><span class="num"><pre>126</pre></span><pre> purposely return a 401), set </pre></div>
<div class="cov"><span class="num"><pre>127</pre></span><pre> ``environ['pylons.status_code_redirect'] = True`` in the application.</pre></div>
<div class="skip"><span class="num"><pre>128</pre></span><pre> </pre></div>
<div class="cov"><span class="num"><pre>129</pre></span><pre> """</pre></div>
<div class="cov"><span class="num"><pre>130</pre></span><pre> def __init__(self, app, errors=(400, 401, 403, 404),</pre></div>
<div class="cov"><span class="num"><pre>131</pre></span><pre> path='/error/document'):</pre></div>
<div class="cov"><span class="num"><pre>132</pre></span><pre> """Initialize the ErrorRedirect</pre></div>
<div class="skip"><span class="num"><pre>133</pre></span><pre> </pre></div>
<div class="cov"><span class="num"><pre>134</pre></span><pre> ``errors``</pre></div>
<div class="cov"><span class="num"><pre>135</pre></span><pre> A sequence (list, tuple) of error code integers that should</pre></div>
<div class="cov"><span class="num"><pre>136</pre></span><pre> be caught.</pre></div>
<div class="cov"><span class="num"><pre>137</pre></span><pre> ``path``</pre></div>
<div class="cov"><span class="num"><pre>138</pre></span><pre> The path to set for the next request down to the </pre></div>
<div class="cov"><span class="num"><pre>139</pre></span><pre> application. </pre></div>
<div class="skip"><span class="num"><pre>140</pre></span><pre> </pre></div>
<div class="cov"><span class="num"><pre>141</pre></span><pre> """</pre></div>
<div class="cov"><span class="num"><pre>142</pre></span><pre> self.app = app</pre></div>
<div class="cov"><span class="num"><pre>143</pre></span><pre> self.error_path = path</pre></div>
<div class="skip"><span class="num"><pre>144</pre></span><pre> </pre></div>
<div class="skip"><span class="num"><pre>145</pre></span><pre> # Transform errors to str for comparison</pre></div>
<div class="cov"><span class="num"><pre>146</pre></span><pre> self.errors = tuple([str(x) for x in errors])</pre></div>
<div class="skip"><span class="num"><pre>147</pre></span><pre> </pre></div>
<div class="cov"><span class="num"><pre>148</pre></span><pre> def __call__(self, environ, start_response):</pre></div>
<div class="cov"><span class="num"><pre>149</pre></span><pre> status, headers, app_iter, exc_info = call_wsgi_application(</pre></div>
<div class="cov"><span class="num"><pre>150</pre></span><pre> self.app, environ, catch_exc_info=True)</pre></div>
<div class="cov"><span class="num"><pre>151</pre></span><pre> if status[:3] in self.errors and \</pre></div>
<div class="cov"><span class="num"><pre>152</pre></span><pre> 'pylons.status_code_redirect' not in environ and self.error_path:</pre></div>
<div class="skip"><span class="num"><pre>153</pre></span><pre> # Create a response object</pre></div>
<div class="cov"><span class="num"><pre>154</pre></span><pre> environ['pylons.original_response'] = Response(</pre></div>
<div class="cov"><span class="num"><pre>155</pre></span><pre> status=status, headerlist=headers, app_iter=app_iter)</pre></div>
<div class="cov"><span class="num"><pre>156</pre></span><pre> environ['pylons.original_request'] = Request(environ)</pre></div>
<div class="skip"><span class="num"><pre>157</pre></span><pre> </pre></div>
<div class="skip"><span class="num"><pre>158</pre></span><pre> # Create a new environ to avoid touching the original request data</pre></div>
<div class="cov"><span class="num"><pre>159</pre></span><pre> new_environ = environ.copy()</pre></div>
<div class="cov"><span class="num"><pre>160</pre></span><pre> new_environ['PATH_INFO'] = self.error_path</pre></div>
<div class="skip"><span class="num"><pre>161</pre></span><pre> </pre></div>
<div class="cov"><span class="num"><pre>162</pre></span><pre> newstatus, headers, app_iter, exc_info = call_wsgi_application(</pre></div>
<div class="cov"><span class="num"><pre>163</pre></span><pre> self.app, new_environ, catch_exc_info=True)</pre></div>
<div class="cov"><span class="num"><pre>164</pre></span><pre> start_response(status, headers, exc_info)</pre></div>
<div class="cov"><span class="num"><pre>165</pre></span><pre> return app_iter</pre></div>
<div class="skip"><span class="num"><pre>166</pre></span><pre></pre></div>
<div class="skip"><span class="num"><pre>167</pre></span><pre></pre></div>
<div class="cov"><span class="num"><pre>168</pre></span><pre>error_document_template = literal("""\</pre></div>
<div class="cov"><span class="num"><pre>169</pre></span><pre><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"></pre></div>
<div class="cov"><span class="num"><pre>170</pre></span><pre><html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"></pre></div>
<div class="cov"><span class="num"><pre>171</pre></span><pre><head></pre></div>
<div class="cov"><span class="num"><pre>172</pre></span><pre> <title>Server Error %(code)s</title></pre></div>
<div class="cov"><span class="num"><pre>173</pre></span><pre><!-- CSS Imports --></pre></div>
<div class="cov"><span class="num"><pre>174</pre></span><pre><link rel="stylesheet" href="%(prefix)s/error/style/black.css" type="text/css" media="screen" /></pre></div>
<div class="skip"><span class="num"><pre>175</pre></span><pre></pre></div>
<div class="cov"><span class="num"><pre>176</pre></span><pre><!-- Favorite Icons --></pre></div>
<div class="cov"><span class="num"><pre>177</pre></span><pre><link rel="icon" href="%(prefix)s/error/img/favicon.ico" type="image/png" /></pre></div>
<div class="skip"><span class="num"><pre>178</pre></span><pre></pre></div>
<div class="cov"><span class="num"><pre>179</pre></span><pre><style type="text/css"></pre></div>
<div class="cov"><span class="num"><pre>180</pre></span><pre> .red {</pre></div>
<div class="cov"><span class="num"><pre>181</pre></span><pre> color:#FF0000;</pre></div>
<div class="cov"><span class="num"><pre>182</pre></span><pre> }</pre></div>
<div class="cov"><span class="num"><pre>183</pre></span><pre> .bold {</pre></div>
<div class="cov"><span class="num"><pre>184</pre></span><pre> font-weight: bold;</pre></div>
<div class="cov"><span class="num"><pre>185</pre></span><pre> }</pre></div>
<div class="cov"><span class="num"><pre>186</pre></span><pre></style></pre></div>
<div class="cov"><span class="num"><pre>187</pre></span><pre></head></pre></div>
<div class="skip"><span class="num"><pre>188</pre></span><pre></pre></div>
<div class="cov"><span class="num"><pre>189</pre></span><pre><body></pre></div>
<div class="cov"><span class="num"><pre>190</pre></span><pre> <div id="container"></pre></div>
<div class="cov"><span class="num"><pre>191</pre></span><pre> %(message)s</pre></div>
<div class="cov"><span class="num"><pre>192</pre></span><pre> </div></pre></div>
<div class="cov"><span class="num"><pre>193</pre></span><pre></body></pre></div>
<div class="cov"><span class="num"><pre>194</pre></span><pre></html></pre></div>
<div class="cov"><span class="num"><pre>195</pre></span><pre>""")</pre></div>
<div class="skip"><span class="num"><pre>196</pre></span><pre></pre></div>
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