Show More
@@ -1,241 +1,244 | |||
|
1 | 1 | # -*- coding: utf-8 -*- |
|
2 | 2 | |
|
3 | 3 | # Copyright (C) 2010-2017 RhodeCode GmbH |
|
4 | 4 | # |
|
5 | 5 | # This program is free software: you can redistribute it and/or modify |
|
6 | 6 | # it under the terms of the GNU Affero General Public License, version 3 |
|
7 | 7 | # (only), as published by the Free Software Foundation. |
|
8 | 8 | # |
|
9 | 9 | # This program is distributed in the hope that it will be useful, |
|
10 | 10 | # but WITHOUT ANY WARRANTY; without even the implied warranty of |
|
11 | 11 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
|
12 | 12 | # GNU General Public License for more details. |
|
13 | 13 | # |
|
14 | 14 | # You should have received a copy of the GNU Affero General Public License |
|
15 | 15 | # along with this program. If not, see <http://www.gnu.org/licenses/>. |
|
16 | 16 | # |
|
17 | 17 | # This program is dual-licensed. If you wish to learn more about the |
|
18 | 18 | # RhodeCode Enterprise Edition, including its added features, Support services, |
|
19 | 19 | # and proprietary license terms, please see https://rhodecode.com/licenses/ |
|
20 | 20 | |
|
21 | 21 | import gzip |
|
22 | 22 | import shutil |
|
23 | 23 | import logging |
|
24 | 24 | import tempfile |
|
25 | 25 | import urlparse |
|
26 | 26 | |
|
27 | 27 | from webob.exc import HTTPNotFound |
|
28 | 28 | |
|
29 | 29 | import rhodecode |
|
30 | 30 | from rhodecode.lib.middleware.appenlight import wrap_in_appenlight_if_enabled |
|
31 | 31 | from rhodecode.lib.middleware.simplegit import SimpleGit, GIT_PROTO_PAT |
|
32 | 32 | from rhodecode.lib.middleware.simplehg import SimpleHg |
|
33 | 33 | from rhodecode.lib.middleware.simplesvn import SimpleSvn |
|
34 | 34 | from rhodecode.model.settings import VcsSettingsModel |
|
35 | 35 | |
|
36 | 36 | log = logging.getLogger(__name__) |
|
37 | 37 | |
|
38 | 38 | VCS_TYPE_KEY = '_rc_vcs_type' |
|
39 | 39 | VCS_TYPE_SKIP = '_rc_vcs_skip' |
|
40 | 40 | |
|
41 | 41 | |
|
42 | 42 | def is_git(environ): |
|
43 | 43 | """ |
|
44 | 44 | Returns True if requests should be handled by GIT wsgi middleware |
|
45 | 45 | """ |
|
46 | 46 | is_git_path = GIT_PROTO_PAT.match(environ['PATH_INFO']) |
|
47 | 47 | log.debug( |
|
48 | 48 | 'request path: `%s` detected as GIT PROTOCOL %s', environ['PATH_INFO'], |
|
49 | 49 | is_git_path is not None) |
|
50 | 50 | |
|
51 | 51 | return is_git_path |
|
52 | 52 | |
|
53 | 53 | |
|
54 | 54 | def is_hg(environ): |
|
55 | 55 | """ |
|
56 | 56 | Returns True if requests target is mercurial server - header |
|
57 | 57 | ``HTTP_ACCEPT`` of such request would start with ``application/mercurial``. |
|
58 | 58 | """ |
|
59 | 59 | is_hg_path = False |
|
60 | 60 | |
|
61 | 61 | http_accept = environ.get('HTTP_ACCEPT') |
|
62 | 62 | |
|
63 | 63 | if http_accept and http_accept.startswith('application/mercurial'): |
|
64 | 64 | query = urlparse.parse_qs(environ['QUERY_STRING']) |
|
65 | 65 | if 'cmd' in query: |
|
66 | 66 | is_hg_path = True |
|
67 | 67 | |
|
68 | 68 | log.debug( |
|
69 | 69 | 'request path: `%s` detected as HG PROTOCOL %s', environ['PATH_INFO'], |
|
70 | 70 | is_hg_path) |
|
71 | 71 | |
|
72 | 72 | return is_hg_path |
|
73 | 73 | |
|
74 | 74 | |
|
75 | 75 | def is_svn(environ): |
|
76 | 76 | """ |
|
77 | 77 | Returns True if requests target is Subversion server |
|
78 | 78 | """ |
|
79 | ||
|
79 | 80 | http_dav = environ.get('HTTP_DAV', '') |
|
80 | 81 | magic_path_segment = rhodecode.CONFIG.get( |
|
81 | 82 | 'rhodecode_subversion_magic_path', '/!svn') |
|
82 | 83 | is_svn_path = ( |
|
83 | 84 | 'subversion' in http_dav or |
|
84 |
magic_path_segment in environ['PATH_INFO'] |
|
|
85 | magic_path_segment in environ['PATH_INFO'] | |
|
86 | or environ['REQUEST_METHOD'] in ['PROPFIND', 'PROPPATCH'] | |
|
87 | ) | |
|
85 | 88 | log.debug( |
|
86 | 89 | 'request path: `%s` detected as SVN PROTOCOL %s', environ['PATH_INFO'], |
|
87 | 90 | is_svn_path) |
|
88 | 91 | |
|
89 | 92 | return is_svn_path |
|
90 | 93 | |
|
91 | 94 | |
|
92 | 95 | class GunzipMiddleware(object): |
|
93 | 96 | """ |
|
94 | 97 | WSGI middleware that unzips gzip-encoded requests before |
|
95 | 98 | passing on to the underlying application. |
|
96 | 99 | """ |
|
97 | 100 | |
|
98 | 101 | def __init__(self, application): |
|
99 | 102 | self.app = application |
|
100 | 103 | |
|
101 | 104 | def __call__(self, environ, start_response): |
|
102 | 105 | accepts_encoding_header = environ.get('HTTP_CONTENT_ENCODING', b'') |
|
103 | 106 | |
|
104 | 107 | if b'gzip' in accepts_encoding_header: |
|
105 | 108 | log.debug('gzip detected, now running gunzip wrapper') |
|
106 | 109 | wsgi_input = environ['wsgi.input'] |
|
107 | 110 | |
|
108 | 111 | if not hasattr(environ['wsgi.input'], 'seek'): |
|
109 | 112 | # The gzip implementation in the standard library of Python 2.x |
|
110 | 113 | # requires the '.seek()' and '.tell()' methods to be available |
|
111 | 114 | # on the input stream. Read the data into a temporary file to |
|
112 | 115 | # work around this limitation. |
|
113 | 116 | |
|
114 | 117 | wsgi_input = tempfile.SpooledTemporaryFile(64 * 1024 * 1024) |
|
115 | 118 | shutil.copyfileobj(environ['wsgi.input'], wsgi_input) |
|
116 | 119 | wsgi_input.seek(0) |
|
117 | 120 | |
|
118 | 121 | environ['wsgi.input'] = gzip.GzipFile(fileobj=wsgi_input, mode='r') |
|
119 | 122 | # since we "Ungzipped" the content we say now it's no longer gzip |
|
120 | 123 | # content encoding |
|
121 | 124 | del environ['HTTP_CONTENT_ENCODING'] |
|
122 | 125 | |
|
123 | 126 | # content length has changes ? or i'm not sure |
|
124 | 127 | if 'CONTENT_LENGTH' in environ: |
|
125 | 128 | del environ['CONTENT_LENGTH'] |
|
126 | 129 | else: |
|
127 | 130 | log.debug('content not gzipped, gzipMiddleware passing ' |
|
128 | 131 | 'request further') |
|
129 | 132 | return self.app(environ, start_response) |
|
130 | 133 | |
|
131 | 134 | |
|
132 | 135 | def is_vcs_call(environ): |
|
133 | 136 | if VCS_TYPE_KEY in environ: |
|
134 | 137 | raw_type = environ[VCS_TYPE_KEY] |
|
135 | 138 | return raw_type and raw_type != VCS_TYPE_SKIP |
|
136 | 139 | return False |
|
137 | 140 | |
|
138 | 141 | |
|
139 | 142 | def detect_vcs_request(environ, backends): |
|
140 | 143 | checks = { |
|
141 | 144 | 'hg': (is_hg, SimpleHg), |
|
142 | 145 | 'git': (is_git, SimpleGit), |
|
143 | 146 | 'svn': (is_svn, SimpleSvn), |
|
144 | 147 | } |
|
145 | 148 | handler = None |
|
146 | 149 | |
|
147 | 150 | if VCS_TYPE_KEY in environ: |
|
148 | 151 | raw_type = environ[VCS_TYPE_KEY] |
|
149 | 152 | if raw_type == VCS_TYPE_SKIP: |
|
150 | 153 | log.debug('got `skip` marker for vcs detection, skipping...') |
|
151 | 154 | return handler |
|
152 | 155 | |
|
153 | 156 | _check, handler = checks.get(raw_type) or [None, None] |
|
154 | 157 | if handler: |
|
155 | 158 | log.debug('got handler:%s from environ', handler) |
|
156 | 159 | |
|
157 | 160 | if not handler: |
|
158 | 161 | log.debug('checking if request is of VCS type in order: %s', backends) |
|
159 | 162 | for vcs_type in backends: |
|
160 | 163 | vcs_check, _handler = checks[vcs_type] |
|
161 | 164 | if vcs_check(environ): |
|
162 | 165 | log.debug('vcs handler found %s', _handler) |
|
163 | 166 | handler = _handler |
|
164 | 167 | break |
|
165 | 168 | |
|
166 | 169 | return handler |
|
167 | 170 | |
|
168 | 171 | |
|
169 | 172 | class VCSMiddleware(object): |
|
170 | 173 | |
|
171 | 174 | def __init__(self, app, registry, config, appenlight_client): |
|
172 | 175 | self.application = app |
|
173 | 176 | self.registry = registry |
|
174 | 177 | self.config = config |
|
175 | 178 | self.appenlight_client = appenlight_client |
|
176 | 179 | self.use_gzip = True |
|
177 | 180 | # order in which we check the middlewares, based on vcs.backends config |
|
178 | 181 | self.check_middlewares = config['vcs.backends'] |
|
179 | 182 | |
|
180 | 183 | def vcs_config(self, repo_name=None): |
|
181 | 184 | """ |
|
182 | 185 | returns serialized VcsSettings |
|
183 | 186 | """ |
|
184 | 187 | try: |
|
185 | 188 | return VcsSettingsModel( |
|
186 | 189 | repo=repo_name).get_ui_settings_as_config_obj() |
|
187 | 190 | except Exception: |
|
188 | 191 | pass |
|
189 | 192 | |
|
190 | 193 | def wrap_in_gzip_if_enabled(self, app, config): |
|
191 | 194 | if self.use_gzip: |
|
192 | 195 | app = GunzipMiddleware(app) |
|
193 | 196 | return app |
|
194 | 197 | |
|
195 | 198 | def _get_handler_app(self, environ): |
|
196 | 199 | app = None |
|
197 | 200 | log.debug('VCSMiddleware: detecting vcs type.') |
|
198 | 201 | handler = detect_vcs_request(environ, self.check_middlewares) |
|
199 | 202 | if handler: |
|
200 | 203 | app = handler(self.config, self.registry) |
|
201 | 204 | |
|
202 | 205 | return app |
|
203 | 206 | |
|
204 | 207 | def __call__(self, environ, start_response): |
|
205 | 208 | # check if we handle one of interesting protocols, optionally extract |
|
206 | 209 | # specific vcsSettings and allow changes of how things are wrapped |
|
207 | 210 | vcs_handler = self._get_handler_app(environ) |
|
208 | 211 | if vcs_handler: |
|
209 | 212 | # translate the _REPO_ID into real repo NAME for usage |
|
210 | 213 | # in middleware |
|
211 | 214 | environ['PATH_INFO'] = vcs_handler._get_by_id(environ['PATH_INFO']) |
|
212 | 215 | |
|
213 | 216 | # Set acl, url and vcs repo names. |
|
214 | 217 | vcs_handler.set_repo_names(environ) |
|
215 | 218 | |
|
216 | 219 | # register repo config back to the handler |
|
217 | 220 | vcs_conf = self.vcs_config(vcs_handler.acl_repo_name) |
|
218 | 221 | # maybe damaged/non existent settings. We still want to |
|
219 | 222 | # pass that point to validate on is_valid_and_existing_repo |
|
220 | 223 | # and return proper HTTP Code back to client |
|
221 | 224 | if vcs_conf: |
|
222 | 225 | vcs_handler.repo_vcs_config = vcs_conf |
|
223 | 226 | |
|
224 | 227 | # check for type, presence in database and on filesystem |
|
225 | 228 | if not vcs_handler.is_valid_and_existing_repo( |
|
226 | 229 | vcs_handler.acl_repo_name, |
|
227 | 230 | vcs_handler.base_path, |
|
228 | 231 | vcs_handler.SCM): |
|
229 | 232 | return HTTPNotFound()(environ, start_response) |
|
230 | 233 | |
|
231 | 234 | environ['REPO_NAME'] = vcs_handler.url_repo_name |
|
232 | 235 | |
|
233 | 236 | # Wrap handler in middlewares if they are enabled. |
|
234 | 237 | vcs_handler = self.wrap_in_gzip_if_enabled( |
|
235 | 238 | vcs_handler, self.config) |
|
236 | 239 | vcs_handler, _ = wrap_in_appenlight_if_enabled( |
|
237 | 240 | vcs_handler, self.config, self.appenlight_client) |
|
238 | 241 | |
|
239 | 242 | return vcs_handler(environ, start_response) |
|
240 | 243 | |
|
241 | 244 | return self.application(environ, start_response) |
General Comments 0
You need to be logged in to leave comments.
Login now