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1 # This Source Code is subject to the terms of the Mozilla Public License | |
2 # version 2.0 (the "License"). You can obtain a copy of the License at | |
3 # http://mozilla.org/MPL/2.0/. | |
4 | |
5 import os | |
6 import platform | |
7 import io | |
8 import zipfile | |
9 | |
10 try: | |
11 from urllib.request import urlopen | |
12 except ImportError: | |
13 import urllib | |
14 import contextlib | |
15 | |
16 def urlopen(*args, **kwargs): | |
17 return contextlib.closing(urllib.urlopen(*args, **kwargs)) | |
18 | |
19 JSSHELL_DIR = 'mozilla-esr31' | |
20 JSSHELL_URL = ('https://ftp.mozilla.org/pub/mozilla.org/firefox/nightly' | |
21 '/2015/02/2015-02-25-00-22-19-{}' | |
22 '/jsshell-{{}}.zip'.format(JSSHELL_DIR)) | |
23 | |
24 JSSHELL_SUPPORTED_PLATFORMS = { | |
25 'Windows': 'win32', | |
26 'Linux': { | |
27 'i686': 'linux-i686', | |
28 'x86_64': 'linux-x86_64' | |
29 }, | |
30 'Darwin': 'mac' | |
31 } | |
32 | |
33 | |
34 def ensureJSShell(): | |
35 path = os.environ.get('SPIDERMONKEY_BINARY') | |
36 if path and os.path.isfile(path): | |
37 return path | |
38 | |
39 baseDir = os.path.dirname(__file__) | |
40 system = platform.system() | |
41 | |
42 try: | |
43 build = JSSHELL_SUPPORTED_PLATFORMS[system] | |
44 if isinstance(build, dict): | |
45 build = build[platform.machine()] | |
46 except KeyError: | |
47 raise Exception('Platform {} ({}) not supported by JS shell'.format( | |
48 system, platform.machine() | |
49 )) | |
50 | |
51 shell_dir = os.path.join(baseDir, JSSHELL_DIR + "-" + build) | |
52 if not os.path.exists(shell_dir): | |
53 os.makedirs(shell_dir) | |
54 if system == 'Windows': | |
55 path = os.path.join(shell_dir, 'js.exe') | |
56 else: | |
57 path = os.path.join(shell_dir, 'js') | |
58 | |
59 if os.path.exists(path): | |
60 return path | |
61 | |
62 with urlopen(JSSHELL_URL.format(build)) as response: | |
63 data = response.read() | |
64 | |
65 with zipfile.ZipFile(io.BytesIO(data)) as archive: | |
66 archive.extractall(shell_dir) | |
67 | |
68 if not os.path.exists(path): | |
69 raise Exception('Downloaded package didn\'t contain JS shell executable'
) | |
70 | |
71 try: | |
72 os.chmod(path, 0o700) | |
73 except: | |
74 pass | |
75 | |
76 return path | |
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