2 # -*- coding: utf-8 -*-
4 # scanner.py - part of the FDroid server tools
5 # Copyright (C) 2010-13, Ciaran Gultnieks, ciaran@ciarang.com
7 # This program is free software: you can redistribute it and/or modify
8 # it under the terms of the GNU Affero General Public License as published by
9 # the Free Software Foundation, either version 3 of the License, or
10 # (at your option) any later version.
12 # This program is distributed in the hope that it will be useful,
13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 # GNU Affero General Public License for more details.
17 # You should have received a copy of the GNU Affero General Public License
18 # along with this program. If not, see <http://www.gnu.org/licenses/>.
23 from argparse import ArgumentParser
28 from common import BuildException, VCSException
34 def get_gradle_compile_commands(thisbuild):
35 compileCommands = ['compile', 'releaseCompile']
36 if thisbuild['gradle'] != ['yes']:
37 compileCommands += [flavor + 'Compile' for flavor in thisbuild['gradle']]
38 compileCommands += [flavor + 'ReleaseCompile' for flavor in thisbuild['gradle']]
40 return [re.compile(r'\s*' + c, re.IGNORECASE) for c in compileCommands]
43 # Scan the source code in the given directory (and all subdirectories)
44 # and return the number of fatal problems encountered
45 def scan_source(build_dir, root_dir, thisbuild):
49 # Common known non-free blobs (always lower case):
51 exp: re.compile(r'.*' + exp, re.IGNORECASE) for exp in [
55 r'admob.*sdk.*android',
58 r'google.*play.*services',
62 r'youtube.*android.*player.*api',
70 def suspects_found(s):
71 for n, r in usual_suspects.iteritems():
75 scanignore = common.getpaths(build_dir, thisbuild, 'scanignore')
76 scandelete = common.getpaths(build_dir, thisbuild, 'scandelete')
78 scanignore_worked = set()
79 scandelete_worked = set()
84 scanignore_worked.add(p)
91 scandelete_worked.add(p)
95 def ignoreproblem(what, fd, fp):
96 logging.info('Ignoring %s at %s' % (what, fd))
99 def removeproblem(what, fd, fp):
100 logging.info('Removing %s at %s' % (what, fd))
104 def warnproblem(what, fd):
105 logging.warn('Found %s at %s' % (what, fd))
107 def handleproblem(what, fd, fp):
109 return ignoreproblem(what, fd, fp)
111 return removeproblem(what, fd, fp)
112 logging.error('Found %s at %s' % (what, fd))
115 def is_executable(path):
116 return os.path.exists(path) and os.access(path, os.X_OK)
118 textchars = bytearray({7, 8, 9, 10, 12, 13, 27} | set(range(0x20, 0x100)) - {0x7f})
122 with open(path, 'rb') as f:
124 return bool(d.translate(None, textchars))
126 gradle_compile_commands = get_gradle_compile_commands(thisbuild)
128 def is_used_by_gradle(line):
129 return any(command.match(line) for command in gradle_compile_commands)
131 # Iterate through all files in the source code
132 for r, d, f in os.walk(build_dir, topdown=True):
134 # It's topdown, so checking the basename is enough
135 for ignoredir in ('.hg', '.git', '.svn', '.bzr'):
141 # Path (relative) to the file
142 fp = os.path.join(r, curfile)
143 fd = fp[len(build_dir) + 1:]
145 ext = common.get_extension(fd)
148 count += handleproblem('shared library', fd, fp)
150 count += handleproblem('static library', fd, fp)
152 count += handleproblem('Java compiled class', fd, fp)
154 removeproblem('APK file', fd, fp)
157 for name in suspects_found(curfile):
158 count += handleproblem('usual supect \'%s\'' % name, fd, fp)
159 warnproblem('JAR file', fd)
162 if not os.path.isfile(fp):
164 for line in file(fp):
165 if 'DexClassLoader' in line:
166 count += handleproblem('DexClassLoader', fd, fp)
169 elif ext == 'gradle':
170 if not os.path.isfile(fp):
172 for i, line in enumerate(file(fp)):
174 if is_used_by_gradle(line):
175 for name in suspects_found(line):
176 count += handleproblem('usual supect \'%s\' at line %d' % (name, i), fd, fp)
178 elif ext in ['', 'bin', 'out', 'exe']:
180 count += handleproblem('binary', fd, fp)
182 elif is_executable(fp):
184 warnproblem('possible binary', fd)
187 if p not in scanignore_worked:
188 logging.error('Unused scanignore path: %s' % p)
192 if p not in scandelete_worked:
193 logging.error('Unused scandelete path: %s' % p)
196 # Presence of a jni directory without buildjni=yes might
197 # indicate a problem (if it's not a problem, explicitly use
198 # buildjni=no to bypass this check)
199 if (os.path.exists(os.path.join(root_dir, 'jni')) and
200 not thisbuild['buildjni']):
201 logging.error('Found jni directory, but buildjni is not enabled. Set it to \'no\' to ignore.')
209 global config, options
211 # Parse command line...
212 parser = ArgumentParser(usage="%(prog)s [options] [APPID[:VERCODE] [APPID[:VERCODE] ...]]")
213 common.setup_global_opts(parser)
214 parser.add_argument("appid", nargs='*', help="app-id with optional versioncode in the form APPID[:VERCODE]")
215 options = parser.parse_args()
217 config = common.read_config(options)
219 # Read all app and srclib metadata
220 allapps = metadata.read_metadata()
221 apps = common.read_app_args(options.appid, allapps, True)
226 if not os.path.isdir(build_dir):
227 logging.info("Creating build directory")
228 os.makedirs(build_dir)
229 srclib_dir = os.path.join(build_dir, 'srclib')
230 extlib_dir = os.path.join(build_dir, 'extlib')
232 for appid, app in apps.iteritems():
235 logging.info("Skipping %s: disabled" % appid)
237 if not app['builds']:
238 logging.info("Skipping %s: no builds specified" % appid)
241 logging.info("Processing " + appid)
245 if app['Repo Type'] == 'srclib':
246 build_dir = os.path.join('build', 'srclib', app['Repo'])
248 build_dir = os.path.join('build', appid)
250 # Set up vcs interface and make sure we have the latest code...
251 vcs = common.getvcs(app['Repo Type'], app['Repo'], build_dir)
253 for thisbuild in app['builds']:
255 if thisbuild['disable']:
256 logging.info("...skipping version %s - %s" % (
257 thisbuild['version'], thisbuild.get('disable', thisbuild['commit'][1:])))
259 logging.info("...scanning version " + thisbuild['version'])
261 # Prepare the source code...
262 root_dir, _ = common.prepare_source(vcs, app, thisbuild,
263 build_dir, srclib_dir,
267 count = scan_source(build_dir, root_dir, thisbuild)
269 logging.warn('Scanner found %d problems in %s (%s)' % (
270 count, appid, thisbuild['vercode']))
273 except BuildException as be:
274 logging.warn("Could not scan app %s due to BuildException: %s" % (
277 except VCSException as vcse:
278 logging.warn("VCS error while scanning app %s: %s" % (appid, vcse))
281 logging.warn("Could not scan app %s due to unknown error: %s" % (
282 appid, traceback.format_exc()))
285 logging.info("Finished:")
286 print "%d problems found" % probcount
288 if __name__ == "__main__":