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annotate piecrust/admin/views/micropub.py @ 970:660250c95246

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admin: Improve support for Micropub. - Handle Micropub JSON syntax. - Use UTF8 encoding for created posts. - Remove Micro.blog hack for authorization.
author Ludovic Chabant <ludovic@chabant.com>
date Mon, 09 Oct 2017 21:07:00 -0700
parents 5b735229b6fb
children 60b431c57ea9
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
895
accfe8fc8440 admin: Add a Micropub endpoint.
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1 import re
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2 import os
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3 import os.path
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4 import json
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5 import uuid
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6 import logging
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7 import datetime
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8 import yaml
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9 from werkzeug.utils import secure_filename
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10 from flask import g, url_for, request, abort, jsonify, Response
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11 from flask_indieauth import requires_indieauth
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12 from ..blueprint import foodtruck_bp
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13 from piecrust import CACHE_DIR
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14 from piecrust.configuration import merge_dicts
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15 from piecrust.page import Page
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16
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17
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18 logger = logging.getLogger(__name__)
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19
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20 re_unsafe_asset_char = re.compile('[^a-zA-Z0-9_]')
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21
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22
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23 def _patch_flask_indieauth():
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24 import flask_indieauth
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25
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26 def _patched_get_access_token_from_json_request(request):
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27 try:
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28 jsondata = json.loads(request.get_data(as_text=True))
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29 return jsondata['access_token']
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30 except ValueError:
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31 return None
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32
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33 flask_indieauth.get_access_token_from_json_request = \
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34 _patched_get_access_token_from_json_request
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35 logger.info("Patched Flask-IndieAuth.")
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36
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37
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38 _patch_flask_indieauth()
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39
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40
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41 _enable_debug_req = False
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42
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43
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44 def _debug_req():
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45 if _enable_debug_req:
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46 logger.warning("Headers: %s" % request.headers)
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47 logger.warning("Args: %s" % request.args)
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48 logger.warning("Form: %s" % request.form)
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49 logger.warning("Data: %s" % request.get_data(True))
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50 try:
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51 logger.warning("JSON: %s" % request.json)
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52 except:
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53 pass
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54
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55
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56 @foodtruck_bp.route('/micropub', methods=['POST'])
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57 @requires_indieauth
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58 def post_micropub():
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59 _debug_req()
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60
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61 if 'h' in request.form:
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62 data = _get_mf2_from_form(request.form)
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63 else:
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64 try:
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65 data = json.loads(request.get_data(as_text=True))
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66 except:
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67 data = None
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68
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69 if data:
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70 entry_type = _mf2get(data, 'type')
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71 if entry_type == 'h-entry':
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72 source_name, content_item = _create_hentry(data['properties'])
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73 _run_publisher()
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74 return _get_location_response(source_name, content_item)
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75
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76 else:
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77 logger.error("Post type '%s' is not supported." % post_type)
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78 else:
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79 logger.error("Missing form or JSON data.")
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80
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81 abort(400)
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82
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83
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84 @foodtruck_bp.route('/micropub/media', methods=['POST'])
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85 @requires_indieauth
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86 def post_micropub_media():
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87 _debug_req()
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88
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89 photo = request.files.get('file')
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90 if not photo:
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91 logger.error("Micropub media request without a file part.")
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92 abort(400)
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93 return
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94
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95 fn = secure_filename(photo.filename)
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96 fn = re_unsafe_asset_char.sub('_', fn)
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97 fn = '%s_%s' % (str(uuid.uuid1()), fn)
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98
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99 photo_cache_dir = os.path.join(
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100 g.site.root_dir,
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101 CACHE_DIR, g.site.piecrust_factory.cache_key,
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102 'uploads')
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103 try:
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104 os.makedirs(photo_cache_dir, mode=0o775, exist_ok=True)
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105 except OSError:
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106 pass
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107
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108 photo_path = os.path.join(photo_cache_dir, fn)
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109 logger.info("Uploading file to: %s" % photo_path)
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110 photo.save(photo_path)
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111
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112 r = Response()
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113 r.status_code = 201
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114 r.headers.add('Location', fn)
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115 return r
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116
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117
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118 @foodtruck_bp.route('/micropub', methods=['GET'])
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119 def get_micropub():
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120 data = {}
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121 if request.args.get('q') == 'config':
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122 endpoint_url = (request.host_url.rstrip('/') +
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123 url_for('.post_micropub_media'))
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124 data.update({
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125 "media-endpoint": endpoint_url
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126 })
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127
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128 pcapp = g.site.piecrust_app
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129 syn_data = pcapp.config.get('micropub/syndicate_to')
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130 if syn_data:
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131 data['syndicate-to'] = syn_data
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132
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133 return jsonify(**data)
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134
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135
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136 def _run_publisher():
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137 pcapp = g.site.piecrust_app
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138 target = pcapp.config.get('micropub/publish_target')
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139 if target:
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140 logger.debug("Running pushing target '%s'." % target)
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141 g.site.publish(target)
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diff changeset
142
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diff changeset
143
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diff changeset
144 def _get_location_response(source_name, content_item):
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diff changeset
145 from piecrust.app import PieCrust
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diff changeset
146 pcapp = PieCrust(g.site.root_dir)
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diff changeset
147 source = pcapp.getSource(source_name)
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diff changeset
148
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diff changeset
149 page = Page(source, content_item)
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diff changeset
150 uri = page.getUri()
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diff changeset
151
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152 logger.debug("Redirecting to: %s" % uri)
accfe8fc8440 admin: Add a Micropub endpoint.
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diff changeset
153 r = Response()
accfe8fc8440 admin: Add a Micropub endpoint.
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diff changeset
154 r.status_code = 201
accfe8fc8440 admin: Add a Micropub endpoint.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
155 r.headers.add('Location', uri)
accfe8fc8440 admin: Add a Micropub endpoint.
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parents:
diff changeset
156 return r
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parents:
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157
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parents:
diff changeset
158
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diff changeset
159 re_array_prop = re.compile(r'\[(?P<name>\w*)\]$')
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diff changeset
160
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diff changeset
161
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diff changeset
162 def _get_mf2_from_form(f):
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diff changeset
163 post_type = 'h-' + f.get('h', '')
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diff changeset
164
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diff changeset
165 properties = {}
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166 for key, vals in f.lists():
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diff changeset
167 m = re_array_prop.search(key)
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diff changeset
168 if not m:
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169 properties[key] = vals
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diff changeset
170 continue
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parents: 969
diff changeset
171
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diff changeset
172 key_name_only = key[:m.start()]
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diff changeset
173 inner_name = m.group('name')
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diff changeset
174 if not inner_name:
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diff changeset
175 properties[key_name_only] = vals
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parents: 969
diff changeset
176 continue
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Ludovic Chabant <ludovic@chabant.com>
parents: 969
diff changeset
177
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diff changeset
178 properties[key_name_only] = [{inner_name: vals[0]}]
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179
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180 return {
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181 'type': [post_type],
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182 'properties': properties}
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183
970
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184
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diff changeset
185 def _mf2get(data, key):
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diff changeset
186 val = data.get(key)
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diff changeset
187 if val is not None:
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188 return val[0]
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189 return None
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parents: 969
diff changeset
190
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191
970
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diff changeset
192 def _create_hentry(data):
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193 name = _mf2get(data, 'name')
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diff changeset
194 summary = _mf2get(data, 'summary')
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Ludovic Chabant <ludovic@chabant.com>
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diff changeset
195 location = _mf2get(data, 'location')
660250c95246 admin: Improve support for Micropub.
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diff changeset
196 reply_to = _mf2get(data, 'in-reply-to')
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Ludovic Chabant <ludovic@chabant.com>
parents: 969
diff changeset
197 status = _mf2get(data, 'post-status')
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parents: 969
diff changeset
198 # pubdate = _mf2get(data, 'published') or 'now'
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diff changeset
199
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parents: 969
diff changeset
200 categories = data.get('category')
660250c95246 admin: Improve support for Micropub.
Ludovic Chabant <ludovic@chabant.com>
parents: 969
diff changeset
201
660250c95246 admin: Improve support for Micropub.
Ludovic Chabant <ludovic@chabant.com>
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diff changeset
202 # Get the content.
895
accfe8fc8440 admin: Add a Micropub endpoint.
Ludovic Chabant <ludovic@chabant.com>
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diff changeset
203 post_format = None
970
660250c95246 admin: Improve support for Micropub.
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parents: 969
diff changeset
204 content = _mf2get(data, 'content')
660250c95246 admin: Improve support for Micropub.
Ludovic Chabant <ludovic@chabant.com>
parents: 969
diff changeset
205 if isinstance(content, dict):
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diff changeset
206 content = content.get('html')
895
accfe8fc8440 admin: Add a Micropub endpoint.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
207 post_format = 'none'
accfe8fc8440 admin: Add a Micropub endpoint.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
208 if not content:
accfe8fc8440 admin: Add a Micropub endpoint.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
209 logger.error("No content specified!")
970
660250c95246 admin: Improve support for Micropub.
Ludovic Chabant <ludovic@chabant.com>
parents: 969
diff changeset
210 logger.error(data)
895
accfe8fc8440 admin: Add a Micropub endpoint.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
211 abort(400)
accfe8fc8440 admin: Add a Micropub endpoint.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
212
970
660250c95246 admin: Improve support for Micropub.
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parents: 969
diff changeset
213 # Clean-up stuff.
895
accfe8fc8440 admin: Add a Micropub endpoint.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
214 # TODO: setting to conserve Windows-type line endings?
accfe8fc8440 admin: Add a Micropub endpoint.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
215 content = content.replace('\r\n', '\n')
accfe8fc8440 admin: Add a Micropub endpoint.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
216 if summary:
accfe8fc8440 admin: Add a Micropub endpoint.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
217 summary = summary.replace('\r\n', '\n')
accfe8fc8440 admin: Add a Micropub endpoint.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
218
970
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diff changeset
219 # Get the slug.
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diff changeset
220 slug = _mf2get(data, 'slug') or _mf2get(data, 'mp-slug')
895
accfe8fc8440 admin: Add a Micropub endpoint.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
221 now = datetime.datetime.now()
accfe8fc8440 admin: Add a Micropub endpoint.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
222 if not slug:
accfe8fc8440 admin: Add a Micropub endpoint.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
223 slug = '%02d%02d%02d' % (now.hour, now.minute, now.second)
accfe8fc8440 admin: Add a Micropub endpoint.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
224
accfe8fc8440 admin: Add a Micropub endpoint.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
225 # Create the post in the correct content source.
970
660250c95246 admin: Improve support for Micropub.
Ludovic Chabant <ludovic@chabant.com>
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diff changeset
226 # Note that this won't actually write anything to disk yet, we're
660250c95246 admin: Improve support for Micropub.
Ludovic Chabant <ludovic@chabant.com>
parents: 969
diff changeset
227 # just creating it in memory.
895
accfe8fc8440 admin: Add a Micropub endpoint.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
228 pcapp = g.site.piecrust_app
accfe8fc8440 admin: Add a Micropub endpoint.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
229 source_name = pcapp.config.get('micropub/source', 'posts')
accfe8fc8440 admin: Add a Micropub endpoint.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
230 source = pcapp.getSource(source_name)
accfe8fc8440 admin: Add a Micropub endpoint.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
231
accfe8fc8440 admin: Add a Micropub endpoint.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
232 metadata = {
accfe8fc8440 admin: Add a Micropub endpoint.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
233 'date': now,
accfe8fc8440 admin: Add a Micropub endpoint.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
234 'slug': slug
accfe8fc8440 admin: Add a Micropub endpoint.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
235 }
accfe8fc8440 admin: Add a Micropub endpoint.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
236 logger.debug("Creating item with metadata: %s" % metadata)
accfe8fc8440 admin: Add a Micropub endpoint.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
237 content_item = source.createContent(metadata)
accfe8fc8440 admin: Add a Micropub endpoint.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
238 if content_item is None:
accfe8fc8440 admin: Add a Micropub endpoint.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
239 logger.error("Can't create item for: %s" % metadata)
accfe8fc8440 admin: Add a Micropub endpoint.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
240 abort(500)
accfe8fc8440 admin: Add a Micropub endpoint.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
241
970
660250c95246 admin: Improve support for Micropub.
Ludovic Chabant <ludovic@chabant.com>
parents: 969
diff changeset
242 # Get the media to attach to the post.
660250c95246 admin: Improve support for Micropub.
Ludovic Chabant <ludovic@chabant.com>
parents: 969
diff changeset
243 photos = None
660250c95246 admin: Improve support for Micropub.
Ludovic Chabant <ludovic@chabant.com>
parents: 969
diff changeset
244 if 'photo' in request.files:
660250c95246 admin: Improve support for Micropub.
Ludovic Chabant <ludovic@chabant.com>
parents: 969
diff changeset
245 photos = [request.files['photo']]
660250c95246 admin: Improve support for Micropub.
Ludovic Chabant <ludovic@chabant.com>
parents: 969
diff changeset
246 elif 'photo[]' in request.files:
660250c95246 admin: Improve support for Micropub.
Ludovic Chabant <ludovic@chabant.com>
parents: 969
diff changeset
247 photos = request.files.getlist('photo[]')
660250c95246 admin: Improve support for Micropub.
Ludovic Chabant <ludovic@chabant.com>
parents: 969
diff changeset
248 photo_urls = data.get('photo')
660250c95246 admin: Improve support for Micropub.
Ludovic Chabant <ludovic@chabant.com>
parents: 969
diff changeset
249
660250c95246 admin: Improve support for Micropub.
Ludovic Chabant <ludovic@chabant.com>
parents: 969
diff changeset
250 # Create the assets folder if we have anything to put there.
895
accfe8fc8440 admin: Add a Micropub endpoint.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
251 # TODO: add proper APIs for creating related assets.
969
5b735229b6fb admin: Micropub improvements.
Ludovic Chabant <ludovic@chabant.com>
parents: 964
diff changeset
252 if photo_urls or photos:
895
accfe8fc8440 admin: Add a Micropub endpoint.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
253 photo_dir, _ = os.path.splitext(content_item.spec)
accfe8fc8440 admin: Add a Micropub endpoint.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
254 photo_dir += '-assets'
969
5b735229b6fb admin: Micropub improvements.
Ludovic Chabant <ludovic@chabant.com>
parents: 964
diff changeset
255 try:
5b735229b6fb admin: Micropub improvements.
Ludovic Chabant <ludovic@chabant.com>
parents: 964
diff changeset
256 os.makedirs(photo_dir, mode=0o775, exist_ok=True)
5b735229b6fb admin: Micropub improvements.
Ludovic Chabant <ludovic@chabant.com>
parents: 964
diff changeset
257 except OSError:
970
660250c95246 admin: Improve support for Micropub.
Ludovic Chabant <ludovic@chabant.com>
parents: 969
diff changeset
258 # An `OSError` can still be raised in older versions of Python
660250c95246 admin: Improve support for Micropub.
Ludovic Chabant <ludovic@chabant.com>
parents: 969
diff changeset
259 # if the permissions don't match an existing folder.
660250c95246 admin: Improve support for Micropub.
Ludovic Chabant <ludovic@chabant.com>
parents: 969
diff changeset
260 # Let's ignore it.
969
5b735229b6fb admin: Micropub improvements.
Ludovic Chabant <ludovic@chabant.com>
parents: 964
diff changeset
261 pass
5b735229b6fb admin: Micropub improvements.
Ludovic Chabant <ludovic@chabant.com>
parents: 964
diff changeset
262
5b735229b6fb admin: Micropub improvements.
Ludovic Chabant <ludovic@chabant.com>
parents: 964
diff changeset
263 # Photo URLs come from files uploaded via the media endpoint...
5b735229b6fb admin: Micropub improvements.
Ludovic Chabant <ludovic@chabant.com>
parents: 964
diff changeset
264 # They're waiting for us in the upload cache folder, so let's
5b735229b6fb admin: Micropub improvements.
Ludovic Chabant <ludovic@chabant.com>
parents: 964
diff changeset
265 # move them to the post's assets folder.
970
660250c95246 admin: Improve support for Micropub.
Ludovic Chabant <ludovic@chabant.com>
parents: 969
diff changeset
266 photo_names = []
969
5b735229b6fb admin: Micropub improvements.
Ludovic Chabant <ludovic@chabant.com>
parents: 964
diff changeset
267 if photo_urls:
5b735229b6fb admin: Micropub improvements.
Ludovic Chabant <ludovic@chabant.com>
parents: 964
diff changeset
268 photo_cache_dir = os.path.join(
5b735229b6fb admin: Micropub improvements.
Ludovic Chabant <ludovic@chabant.com>
parents: 964
diff changeset
269 g.site.root_dir,
5b735229b6fb admin: Micropub improvements.
Ludovic Chabant <ludovic@chabant.com>
parents: 964
diff changeset
270 CACHE_DIR, g.site.piecrust_factory.cache_key,
5b735229b6fb admin: Micropub improvements.
Ludovic Chabant <ludovic@chabant.com>
parents: 964
diff changeset
271 'uploads')
895
accfe8fc8440 admin: Add a Micropub endpoint.
Ludovic Chabant <ludovic@chabant.com>
parents:
diff changeset
272
969
5b735229b6fb admin: Micropub improvements.
Ludovic Chabant <ludovic@chabant.com>
parents: 964
diff changeset
273 for p_url in photo_urls:
5b735229b6fb admin: Micropub improvements.
Ludovic Chabant <ludovic@chabant.com>
parents: 964
diff changeset
274 _, __, p_url = p_url.rpartition('/')
5b735229b6fb admin: Micropub improvements.
Ludovic Chabant <ludovic@chabant.com>
parents: 964
diff changeset
275 p_path = os.path.join(photo_cache_dir, p_url)
5b735229b6fb admin: Micropub improvements.
Ludovic Chabant <ludovic@chabant.com>
parents: 964
diff changeset
276 p_uuid, p_fn = p_url.split('_', 1)
5b735229b6fb admin: Micropub improvements.
Ludovic Chabant <ludovic@chabant.com>
parents: 964
diff changeset
277 p_asset = os.path.join(photo_dir, p_fn)
5b735229b6fb admin: Micropub improvements.
Ludovic Chabant <ludovic@chabant.com>
parents: 964
diff changeset
278 logger.info("Moving upload '%s' to '%s'." % (p_path, p_asset))
970
660250c95246 admin: Improve support for Micropub.
Ludovic Chabant <ludovic@chabant.com>
parents: 969
diff changeset
279 try:
660250c95246 admin: Improve support for Micropub.
Ludovic Chabant <ludovic@chabant.com>
parents: 969
diff changeset
280 os.rename(p_path, p_asset)
660250c95246 admin: Improve support for Micropub.
Ludovic Chabant <ludovic@chabant.com>
parents: 969
diff changeset
281 except OSError:
660250c95246 admin: Improve support for Micropub.
Ludovic Chabant <ludovic@chabant.com>
parents: 969
diff changeset
282 logger.error("Can't move '%s' to '%s'." % (p_path, p_asset))
660250c95246 admin: Improve support for Micropub.
Ludovic Chabant <ludovic@chabant.com>
parents: 969
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283 raise
969
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284
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285 p_fn_no_ext, _ = os.path.splitext(p_fn)
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286 photo_names.append(p_fn_no_ext)
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287
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288 # There could also be some files uploaded along with the post
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289 # so upload them right now.
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290 if photos:
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291 for photo in photos:
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292 if not photo or not photo.filename:
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293 logger.warning("Got empty photo in request files... skipping.")
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294 continue
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295
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296 fn = secure_filename(photo.filename)
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297 fn = re_unsafe_asset_char.sub('_', fn)
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298 photo_path = os.path.join(photo_dir, fn)
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299 logger.info("Uploading file to: %s" % photo_path)
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300 photo.save(photo_path)
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301
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302 fn_no_ext, _ = os.path.splitext(fn)
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303 photo_names.append(fn_no_ext)
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304
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305 # Build the config.
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306 post_config = {}
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307 if name:
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308 post_config['title'] = name
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309 if categories:
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310 post_config['tags'] = categories
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311 if location:
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312 post_config['location'] = location
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313 if reply_to:
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314 post_config['reply_to'] = reply_to
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315 if status and status != 'published':
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316 post_config['draft'] = True
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317 if post_format:
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318 post_config['format'] = post_format
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319 post_config['time'] = '%02d:%02d:%02d' % (now.hour, now.minute, now.second)
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320
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321 # If there's no title, this is a "microblogging" post.
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322 if not name:
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323 micro_config = pcapp.config.get('micropub/microblogging')
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324 if micro_config:
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325 merge_dicts(post_config, micro_config)
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326
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327 logger.debug("Writing to item: %s" % content_item.spec)
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328 with source.openItem(content_item, mode='w', encoding='utf8') as fp:
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329 fp.write('---\n')
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330 yaml.dump(post_config, fp,
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331 default_flow_style=False,
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332 allow_unicode=True)
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333 fp.write('---\n')
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334
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335 if summary:
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336 fp.write(summary)
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337 fp.write('\n')
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338 fp.write('<!--break-->\n\n')
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339 fp.write(content)
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340
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341 if photo_names:
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342 fp.write('\n\n')
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343 for pn in photo_names:
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344 fp.write('<img src="{{assets.%s}}" alt="%s"/>\n\n' %
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diff changeset
345 (pn, pn))
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346
969
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347 if os.supports_fd:
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348 import stat
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349 try:
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350 os.chmod(fp.fileno(),
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351 stat.S_IRUSR|stat.S_IWUSR|stat.S_IRGRP|stat.S_IWGRP)
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352 except OSError:
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diff changeset
353 pass
895
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354
969
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355 return source_name, content_item
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diff changeset
356