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annotate piecrust/serving.py @ 191:308d5180bf81

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processing: Add more information to the pipeline record. We now save whether an asset was processed by an external tool that bypasses the pipeline, and the tree of processor names involved.
author Ludovic Chabant <ludovic@chabant.com>
date Sun, 11 Jan 2015 23:01:21 -0800
parents 430ee5b80962
children 76e459d48c43
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1 import re
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2 import gzip
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3 import time
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4 import os
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5 import os.path
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6 import hashlib
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7 import logging
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8 import io
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9 from werkzeug.exceptions import (NotFound, MethodNotAllowed,
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10 InternalServerError, HTTPException)
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11 from werkzeug.serving import run_simple
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12 from werkzeug.wrappers import Request, Response
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13 from werkzeug.wsgi import wrap_file
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14 from jinja2 import FileSystemLoader, Environment
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15 from piecrust.app import PieCrust
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16 from piecrust.data.filters import (PaginationFilter, HasFilterClause,
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17 IsFilterClause)
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18 from piecrust.environment import StandardEnvironment
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19 from piecrust.processing.base import ProcessorPipeline
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20 from piecrust.rendering import PageRenderingContext, render_page
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21 from piecrust.sources.base import PageFactory, MODE_PARSING
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24 logger = logging.getLogger(__name__)
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27 class ServingEnvironment(StandardEnvironment):
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28 pass
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31 class ServeRecord(object):
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32 def __init__(self):
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33 self.entries = {}
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34
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35 def addEntry(self, entry):
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36 key = self._makeKey(entry.uri, entry.sub_num)
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37 self.entries[key] = entry
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38
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39 def getEntry(self, uri, sub_num):
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40 key = self._makeKey(uri, sub_num)
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41 return self.entries.get(key)
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42
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43 def _makeKey(self, uri, sub_num):
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44 return "%s:%s" % (uri, sub_num)
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45
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46
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47 class ServeRecordPageEntry(object):
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48 def __init__(self, uri, sub_num):
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49 self.uri = uri
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50 self.sub_num = sub_num
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51 self.used_source_names = set()
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53
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54 class Server(object):
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55 def __init__(self, root_dir, host='localhost', port='8080',
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56 debug=False, use_reloader=False, static_preview=True,
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57 synchronous_asset_pipeline=True):
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58 self.root_dir = root_dir
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59 self.host = host
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60 self.port = port
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61 self.debug = debug
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62 self.use_reloader = use_reloader
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63 self.static_preview = static_preview
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64 self.synchronous_asset_pipeline = synchronous_asset_pipeline
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65 self._out_dir = None
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66 self._skip_patterns = None
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67 self._force_patterns = None
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68 self._asset_record = None
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69 self._page_record = None
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70 self._mimetype_map = load_mimetype_map()
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71
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72 def run(self):
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73 # Bake all the assets so we know what we have, and so we can serve
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74 # them to the client. We need a temp app for this.
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75 app = PieCrust(root_dir=self.root_dir, debug=self.debug)
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76 mounts = app.assets_dirs
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77 self._out_dir = os.path.join(app.cache_dir, 'server')
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78 self._skip_patterns = app.config.get('baker/skip_patterns')
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79 self._force_patterns = app.config.get('baker/force_patterns')
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80 pipeline = ProcessorPipeline(
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81 app, mounts, self._out_dir,
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82 skip_patterns=self._skip_patterns,
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83 force_patterns=self._force_patterns)
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84 self._asset_record = pipeline.run()
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85 self._page_record = ServeRecord()
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86
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87 # Run the WSGI app.
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88 wsgi_wrapper = WsgiServer(self)
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89 run_simple(self.host, self.port, wsgi_wrapper,
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90 use_debugger=self.debug, use_reloader=self.use_reloader)
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91
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92 def _run_request(self, environ, start_response):
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93 try:
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94 return self._run_piecrust(environ, start_response)
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95 except Exception as ex:
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96 if self.debug:
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97 raise
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98 return self._handle_error(ex, environ, start_response)
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99
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100 def _run_piecrust(self, environ, start_response):
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101 request = Request(environ)
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102
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103 # We don't support anything else than GET requests since we're
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104 # previewing something that will be static later.
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105 if self.static_preview and request.method != 'GET':
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106 logger.error("Only GET requests are allowed, got %s" % request.method)
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107 raise MethodNotAllowed()
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108
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109 # Create the app for this request.
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110 rq_debug = ('!debug' in request.args)
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111 app = PieCrust(root_dir=self.root_dir, debug=(self.debug or rq_debug))
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112 app.config.set('site/root', '/')
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113 app.config.set('site/pretty_urls', True)
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114 app.config.set('server/is_serving', True)
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115
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116 # We'll serve page assets directly from where they are.
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117 app.env.base_asset_url_format = '/_asset/%path%'
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118
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119 # See if the requested URL is an asset.
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120 response = self._try_serve_asset(app, environ, request)
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121 if response is not None:
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122 return response(environ, start_response)
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123
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124 # It's not an asset we know of... let's see if it can be a page asset.
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125 response = self._try_serve_page_asset(app, environ, request)
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126 if response is not None:
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127 return response(environ, start_response)
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128
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129 # Nope. Let's see if it's an actual page.
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130 # We trap any exception that says "there's no such page" so we can
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131 # try another thing before bailing out. But we let any exception
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132 # that says "something's wrong" through.
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133 exc = None
3
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134 try:
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135 response = self._try_serve_page(app, environ, request)
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136 return response(environ, start_response)
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137 except (RouteNotFoundError, SourceNotFoundError) as ex:
133
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138 exc = NotFound(str(ex))
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139 except NotFound as ex:
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140 exc = ex
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141 except HTTPException:
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142 raise
3
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143 except Exception as ex:
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144 if app.debug:
128
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145 logger.exception(ex)
3
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diff changeset
146 raise
128
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147 msg = str(ex)
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148 logger.error(msg)
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149 raise InternalServerError(msg)
3
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150
133
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151 # Nothing worked so far... let's see if there's a new asset.
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152 response = self._try_serve_new_asset(app, environ, request)
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153 if response is not None:
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154 return response(environ, start_response)
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155
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156 # Nope. Raise the exception we had in store.
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157 raise exc
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158
3
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159 def _try_serve_asset(self, app, environ, request):
133
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160 logger.debug("Searching %d entries for asset with path: %s" %
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161 (len(self._asset_record.entries), request.path))
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162 rel_req_path = request.path.lstrip('/').replace('/', os.sep)
133
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163 entry = self._asset_record.findEntry(rel_req_path)
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164 if entry is None:
133
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165 # We don't know any asset that could have created this path.
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166 # It could be a new asset that the user just created, but we'll
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167 # check for that later.
190
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168 # What we can do however is see if there's anything that already
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169 # exists there, because it could have been created by a processor
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170 # that bypasses structured processing (like e.g. the compass
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171 # processor). In that case, just return that file, hoping it will
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172 # be up-to-date.
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173 full_path = os.path.join(self._out_dir, rel_req_path)
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174 try:
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175 response = self._make_wrapped_file_response(
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176 environ, full_path)
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177 logger.debug("Didn't find record entry, but found existing "
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178 "output file at: %s" % rel_req_path)
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179 return response
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180 except OSError:
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diff changeset
181 pass
133
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182 return None
3
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183
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184 # Yep, we know about this URL because we processed an asset that
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185 # maps to it... make sure it's up to date by re-processing it
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186 # before serving.
133
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187 mounts = app.assets_dirs
39
2f717f961996 Better error reporting and cache validation.
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diff changeset
188 asset_in_path = entry.path
3
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189 asset_out_path = os.path.join(self._out_dir, rel_req_path)
110
7f00176a3b4d Prepare the server to support background asset pipelines.
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diff changeset
190
133
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191 if self.synchronous_asset_pipeline:
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192 logger.debug("Making sure '%s' is up-to-date." % asset_in_path)
110
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diff changeset
193 pipeline = ProcessorPipeline(
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194 app, mounts, self._out_dir,
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diff changeset
195 skip_patterns=self._skip_patterns,
133
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diff changeset
196 force_patterns=self._force_patterns,
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diff changeset
197 num_workers=1)
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198 r = pipeline.run(asset_in_path, delete=False, save_record=False,
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diff changeset
199 previous_record=self._asset_record)
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diff changeset
200 assert len(r.entries) == 1
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diff changeset
201 self._asset_record.replaceEntry(r.entries[0])
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diff changeset
202
190
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diff changeset
203 return self._make_wrapped_file_response(environ, asset_out_path)
3
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204
133
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diff changeset
205 def _try_serve_new_asset(self, app, environ, request):
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diff changeset
206 logger.debug("Searching for a new asset with path: %s" % request.path)
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diff changeset
207 mounts = app.assets_dirs
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diff changeset
208 pipeline = ProcessorPipeline(
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diff changeset
209 app, mounts, self._out_dir,
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diff changeset
210 skip_patterns=self._skip_patterns,
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diff changeset
211 force_patterns=self._force_patterns)
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diff changeset
212 r = pipeline.run(new_only=True, delete=False, save_record=False,
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parents: 130
diff changeset
213 previous_record=self._asset_record)
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parents: 130
diff changeset
214 for e in r.entries:
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diff changeset
215 self._asset_record.addEntry(e)
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parents: 130
diff changeset
216
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diff changeset
217 rel_req_path = request.path.lstrip('/').replace('/', os.sep)
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parents: 130
diff changeset
218 entry = self._asset_record.findEntry(rel_req_path)
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parents: 130
diff changeset
219 if entry is None:
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diff changeset
220 return None
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diff changeset
221
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diff changeset
222 asset_out_path = os.path.join(self._out_dir, rel_req_path)
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parents: 130
diff changeset
223 logger.debug("Found new asset: %s" % entry.path)
190
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parents: 176
diff changeset
224 return self._make_wrapped_file_response(environ, asset_out_path)
3
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225
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226 def _try_serve_page_asset(self, app, environ, request):
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227 if not request.path.startswith('/_asset/'):
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228 return None
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229
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230 full_path = os.path.join(app.root_dir, request.path[len('/_asset/'):])
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231 if not os.path.isfile(full_path):
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diff changeset
232 return None
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233
190
430ee5b80962 serve: Make the server find assets generated by external tools.
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parents: 176
diff changeset
234 return self._make_wrapped_file_response(environ, full_path)
3
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235
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236 def _try_serve_page(self, app, environ, request):
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237 # Try to find what matches the requested URL.
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238 req_path = request.path
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diff changeset
239 page_num = 1
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diff changeset
240 pgn_suffix_re = app.config.get('__cache/pagination_suffix_re')
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parents:
diff changeset
241 pgn_suffix_m = re.search(pgn_suffix_re, request.path)
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diff changeset
242 if pgn_suffix_m:
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diff changeset
243 req_path = request.path[:pgn_suffix_m.start()]
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parents:
diff changeset
244 page_num = int(pgn_suffix_m.group('num'))
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parents:
diff changeset
245
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246 routes = find_routes(app.routes, req_path)
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diff changeset
247 if len(routes) == 0:
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248 raise RouteNotFoundError("Can't find route for: %s" % req_path)
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parents:
diff changeset
249
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250 taxonomy = None
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diff changeset
251 for route, route_metadata in routes:
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diff changeset
252 source = app.getSource(route.source_name)
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diff changeset
253 if route.taxonomy is None:
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617191dec18e Fixes for Windows, make `findPagePath` return a ref path.
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parents: 7
diff changeset
254 rel_path, fac_metadata = source.findPagePath(
3
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parents:
diff changeset
255 route_metadata, MODE_PARSING)
11
617191dec18e Fixes for Windows, make `findPagePath` return a ref path.
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parents: 7
diff changeset
256 if rel_path is not None:
3
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parents:
diff changeset
257 break
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parents:
diff changeset
258 else:
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parents:
diff changeset
259 taxonomy = app.getTaxonomy(route.taxonomy)
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parents:
diff changeset
260 term_value = route_metadata.get(taxonomy.term_name)
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diff changeset
261 if term_value is not None:
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diff changeset
262 tax_page_ref = taxonomy.getPageRef(source.name)
11
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diff changeset
263 rel_path = tax_page_ref.rel_path
3
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diff changeset
264 source = tax_page_ref.source
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diff changeset
265 fac_metadata = {taxonomy.term_name: term_value}
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diff changeset
266 break
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267 else:
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268 raise SourceNotFoundError("Can't find path for: %s "
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diff changeset
269 "(looked in: %s)" %
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diff changeset
270 (req_path, [r.source_name for r, _ in routes]))
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271
113
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diff changeset
272 # Build the page.
11
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diff changeset
273 fac = PageFactory(source, rel_path, fac_metadata)
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diff changeset
274 page = fac.buildPage()
174
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diff changeset
275 # We force the rendering of the page because it could not have
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diff changeset
276 # changed, but include pages that did change.
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diff changeset
277 render_ctx = PageRenderingContext(page, req_path, page_num,
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diff changeset
278 force_render=True)
3
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279 if taxonomy is not None:
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280 flt = PaginationFilter()
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281 if taxonomy.is_multiple:
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282 flt.addClause(HasFilterClause(taxonomy.name, term_value))
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283 else:
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284 flt.addClause(IsFilterClause(taxonomy.name, term_value))
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285 render_ctx.pagination_filter = flt
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286 render_ctx.custom_data = {
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287 taxonomy.term_name: term_value}
113
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diff changeset
288
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diff changeset
289 # See if this page is known to use sources. If that's the case,
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diff changeset
290 # just don't use cached rendered segments for that page (but still
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diff changeset
291 # use them for pages that are included in it).
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292 entry = self._page_record.getEntry(req_path, page_num)
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293 if (taxonomy is not None or entry is None or
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diff changeset
294 entry.used_source_names):
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diff changeset
295 cache_key = '%s:%s' % (req_path, page_num)
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diff changeset
296 app.env.rendered_segments_repository.invalidate(cache_key)
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diff changeset
297
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diff changeset
298 # Render the page.
3
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299 rendered_page = render_page(render_ctx)
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300 rp_content = rendered_page.content
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301
128
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parents: 113
diff changeset
302 if taxonomy is not None:
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diff changeset
303 paginator = rendered_page.data.get('pagination')
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diff changeset
304 if (paginator and paginator.is_loaded and
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parents: 113
diff changeset
305 len(paginator.items) == 0):
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parents: 113
diff changeset
306 message = ("This URL matched a route for taxonomy '%s' but "
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parents: 113
diff changeset
307 "no pages have been found to have it. This page "
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parents: 113
diff changeset
308 "won't be generated by a bake." % taxonomy.name)
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parents: 113
diff changeset
309 raise NotFound(message)
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parents: 113
diff changeset
310
113
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diff changeset
311 if entry is None:
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diff changeset
312 entry = ServeRecordPageEntry(req_path, page_num)
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diff changeset
313 self._page_record.addEntry(entry)
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diff changeset
314 entry.used_source_names = set(render_ctx.used_source_names)
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parents: 111
diff changeset
315
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diff changeset
316 # Profiling.
7
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diff changeset
317 if app.debug:
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diff changeset
318 now_time = time.clock()
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diff changeset
319 timing_info = ('%8.1f ms' %
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diff changeset
320 ((now_time - app.env.start_time) * 1000.0))
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diff changeset
321 rp_content = rp_content.replace('__PIECRUST_TIMING_INFORMATION__',
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parents: 5
diff changeset
322 timing_info)
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parents: 5
diff changeset
323
113
de257cc40ce1 Re-enable proper caching of rendered segments in server.
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diff changeset
324 # Build the response.
3
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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diff changeset
325 response = Response()
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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parents:
diff changeset
326
7
343d08ef5668 More PieCrust 3 fixes, and a couple of miscellaneous bug fixes.
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diff changeset
327 etag = hashlib.md5(rp_content.encode('utf8')).hexdigest()
3
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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parents:
diff changeset
328 if not app.debug and etag in request.if_none_match:
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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diff changeset
329 response.status_code = 304
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diff changeset
330 return response
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diff changeset
331
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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diff changeset
332 response.set_etag(etag)
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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parents:
diff changeset
333 response.content_md5 = etag
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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parents:
diff changeset
334
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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diff changeset
335 cache_control = response.cache_control
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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parents:
diff changeset
336 if app.debug:
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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diff changeset
337 cache_control.no_cache = True
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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diff changeset
338 cache_control.must_revalidate = True
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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parents:
diff changeset
339 else:
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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diff changeset
340 cache_time = (page.config.get('cache_time') or
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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parents:
diff changeset
341 app.config.get('site/cache_time'))
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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parents:
diff changeset
342 if cache_time:
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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parents:
diff changeset
343 cache_control.public = True
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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diff changeset
344 cache_control.max_age = cache_time
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parents:
diff changeset
345
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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diff changeset
346 content_type = page.config.get('content_type')
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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parents:
diff changeset
347 if content_type and '/' not in content_type:
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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parents:
diff changeset
348 mimetype = content_type_map.get(content_type, content_type)
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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parents:
diff changeset
349 else:
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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parents:
diff changeset
350 mimetype = content_type
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parents:
diff changeset
351 if mimetype:
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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parents:
diff changeset
352 response.mimetype = mimetype
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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parents:
diff changeset
353
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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parents:
diff changeset
354 if ('gzip' in request.accept_encodings and
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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parents:
diff changeset
355 app.config.get('site/enable_gzip')):
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parents:
diff changeset
356 try:
7
343d08ef5668 More PieCrust 3 fixes, and a couple of miscellaneous bug fixes.
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parents: 5
diff changeset
357 with io.BytesIO() as gzip_buffer:
343d08ef5668 More PieCrust 3 fixes, and a couple of miscellaneous bug fixes.
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parents: 5
diff changeset
358 with gzip.open(gzip_buffer, mode='wt',
343d08ef5668 More PieCrust 3 fixes, and a couple of miscellaneous bug fixes.
Ludovic Chabant <ludovic@chabant.com>
parents: 5
diff changeset
359 encoding='utf8') as gzip_file:
343d08ef5668 More PieCrust 3 fixes, and a couple of miscellaneous bug fixes.
Ludovic Chabant <ludovic@chabant.com>
parents: 5
diff changeset
360 gzip_file.write(rp_content)
343d08ef5668 More PieCrust 3 fixes, and a couple of miscellaneous bug fixes.
Ludovic Chabant <ludovic@chabant.com>
parents: 5
diff changeset
361 rp_content = gzip_buffer.getvalue()
343d08ef5668 More PieCrust 3 fixes, and a couple of miscellaneous bug fixes.
Ludovic Chabant <ludovic@chabant.com>
parents: 5
diff changeset
362 response.content_encoding = 'gzip'
3
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
363 except Exception:
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
364 logger.exception("Error compressing response, "
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
365 "falling back to uncompressed.")
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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parents:
diff changeset
366 response.set_data(rp_content)
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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parents:
diff changeset
367
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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parents:
diff changeset
368 return response
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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parents:
diff changeset
369
190
430ee5b80962 serve: Make the server find assets generated by external tools.
Ludovic Chabant <ludovic@chabant.com>
parents: 176
diff changeset
370 def _make_wrapped_file_response(self, environ, path):
430ee5b80962 serve: Make the server find assets generated by external tools.
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parents: 176
diff changeset
371 logger.debug("Serving %s" % path)
430ee5b80962 serve: Make the server find assets generated by external tools.
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parents: 176
diff changeset
372 wrapper = wrap_file(environ, open(path, 'rb'))
430ee5b80962 serve: Make the server find assets generated by external tools.
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parents: 176
diff changeset
373 response = Response(wrapper)
430ee5b80962 serve: Make the server find assets generated by external tools.
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parents: 176
diff changeset
374 _, ext = os.path.splitext(path)
430ee5b80962 serve: Make the server find assets generated by external tools.
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parents: 176
diff changeset
375 response.mimetype = self._mimetype_map.get(
430ee5b80962 serve: Make the server find assets generated by external tools.
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parents: 176
diff changeset
376 ext.lstrip('.'), 'text/plain')
430ee5b80962 serve: Make the server find assets generated by external tools.
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parents: 176
diff changeset
377 return response
430ee5b80962 serve: Make the server find assets generated by external tools.
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parents: 176
diff changeset
378
3
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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parents:
diff changeset
379 def _handle_error(self, exception, environ, start_response):
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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parents:
diff changeset
380 path = 'error'
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parents:
diff changeset
381 if isinstance(exception, NotFound):
128
28444014ce7d Fix error reporting and counting of lines.
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parents: 113
diff changeset
382 path += '404'
28444014ce7d Fix error reporting and counting of lines.
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parents: 113
diff changeset
383 description = str(exception)
28444014ce7d Fix error reporting and counting of lines.
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parents: 113
diff changeset
384 if isinstance(exception, HTTPException):
28444014ce7d Fix error reporting and counting of lines.
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parents: 113
diff changeset
385 description = exception.description
3
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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parents:
diff changeset
386 env = Environment(loader=ErrorMessageLoader())
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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parents:
diff changeset
387 template = env.get_template(path)
128
28444014ce7d Fix error reporting and counting of lines.
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parents: 113
diff changeset
388 context = {'details': description}
3
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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parents:
diff changeset
389 response = Response(template.render(context), mimetype='text/html')
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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parents:
diff changeset
390 return response(environ, start_response)
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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parents:
diff changeset
391
f485ba500df3 Gigantic change to basically make PieCrust 2 vaguely functional.
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parents:
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392
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393 class WsgiServer(object):
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394 def __init__(self, server):
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395 self.server = server
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396
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397 def __call__(self, environ, start_response):
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398 return self.server._run_request(environ, start_response)
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399
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400
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401 class RouteNotFoundError(Exception):
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402 pass
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403
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404
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405 class SourceNotFoundError(Exception):
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406 pass
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407
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408
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409 content_type_map = {
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410 'html': 'text/html',
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411 'xml': 'text/xml',
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412 'txt': 'text/plain',
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413 'text': 'text/plain',
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414 'css': 'text/css',
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415 'xhtml': 'application/xhtml+xml',
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416 'atom': 'application/atom+xml', # or 'text/xml'?
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417 'rss': 'application/rss+xml', # or 'text/xml'?
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418 'json': 'application/json'}
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419
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420
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421 def find_routes(routes, uri):
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422 uri = uri.lstrip('/')
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423 res = []
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424 for route in routes:
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425 metadata = route.matchUri(uri)
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426 if metadata:
3
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427 res.append((route, metadata))
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428 return res
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429
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430
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431 class ErrorMessageLoader(FileSystemLoader):
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432 def __init__(self):
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433 base_dir = os.path.join(os.path.dirname(__file__), 'resources',
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434 'messages')
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435 super(ErrorMessageLoader, self).__init__(base_dir)
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436
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437 def get_source(self, env, template):
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438 template += '.html'
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439 return super(ErrorMessageLoader, self).get_source(env, template)
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440
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441
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442 def load_mimetype_map():
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443 mimetype_map = {}
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444 sep_re = re.compile(r'\s+')
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445 path = os.path.join(os.path.dirname(__file__), 'mime.types')
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446 with open(path, 'r') as f:
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447 for line in f:
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448 tokens = sep_re.split(line)
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449 if len(tokens) > 1:
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450 for t in tokens[1:]:
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451 mimetype_map[t] = tokens[0]
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452 return mimetype_map
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453