summaryrefslogtreecommitdiffstats
path: root/addon-sdk/source/python-lib/cuddlefish/preflight.py
diff options
context:
space:
mode:
Diffstat (limited to 'addon-sdk/source/python-lib/cuddlefish/preflight.py')
-rwxr-xr-xaddon-sdk/source/python-lib/cuddlefish/preflight.py77
1 files changed, 0 insertions, 77 deletions
diff --git a/addon-sdk/source/python-lib/cuddlefish/preflight.py b/addon-sdk/source/python-lib/cuddlefish/preflight.py
deleted file mode 100755
index c92a0890d..000000000
--- a/addon-sdk/source/python-lib/cuddlefish/preflight.py
+++ /dev/null
@@ -1,77 +0,0 @@
-# This Source Code Form is subject to the terms of the Mozilla Public
-# License, v. 2.0. If a copy of the MPL was not distributed with this
-# file, You can obtain one at http://mozilla.org/MPL/2.0/.
-
-import os, sys
-import base64
-import simplejson as json
-
-def create_jid():
- """Return 'jid1-XYZ', where 'XYZ' is a randomly-generated string. (in the
- previous jid0- series, the string securely identified a specific public
- key). To get a suitable add-on ID, append '@jetpack' to this string.
- """
- # per https://developer.mozilla.org/en/Install_Manifests#id all XPI id
- # values must either be in the form of a 128-bit GUID (crazy braces
- # and all) or in the form of an email address (crazy @ and all).
- # Firefox will refuse to install an add-on with an id that doesn't
- # match one of these forms. The actual regexp is at:
- # http://mxr.mozilla.org/mozilla-central/source/toolkit/mozapps/extensions/internal/XPIProvider.jsm#130
- # So the JID needs an @-suffix, and the only legal punctuation is
- # "-._". So we start with a base64 encoding, and replace the
- # punctuation (+/) with letters (AB), losing a few bits of integrity.
-
- # even better: windows has a maximum path length limitation of 256
- # characters:
- # http://msdn.microsoft.com/en-us/library/aa365247%28VS.85%29.aspx
- # (unless all paths are prefixed with "\\?\", I kid you not). The
- # typical install will put add-on code in a directory like:
- # C:\Documents and Settings\<username>\Application Data\Mozilla\Firefox\Profiles\232353483.default\extensions\$JID\...
- # (which is 108 chars long without the $JID).
- # Then the unpacked XPI contains packaged resources like:
- # resources/$JID-api-utils-lib/main.js (35 chars plus the $JID)
- #
- # We create a random 80 bit string, base64 encode that (with
- # AB instead of +/ to be path-safe), then bundle it into
- # "jid1-XYZ@jetpack". This gives us 27 characters. The resulting
- # main.js will have a path length of 211 characters, leaving us 45
- # characters of margin.
- #
- # 80 bits is enough to generate one billion JIDs and still maintain lower
- # than a one-in-a-million chance of accidental collision. (1e9 JIDs is 30
- # bits, square for the "birthday-paradox" to get 60 bits, add 20 bits for
- # the one-in-a-million margin to get 80 bits)
-
- # if length were no issue, we'd prefer to use this:
- h = os.urandom(80/8)
- s = base64.b64encode(h, "AB").strip("=")
- jid = "jid1-" + s
- return jid
-
-def preflight_config(target_cfg, filename, stderr=sys.stderr):
- modified = False
- config = json.load(open(filename, 'r'))
-
- if "id" not in config:
- print >>stderr, ("No 'id' in package.json: creating a new ID for you.")
- jid = create_jid()
- config["id"] = jid
- modified = True
-
- if modified:
- i = 0
- backup = filename + ".backup"
- while os.path.exists(backup):
- if i > 1000:
- raise ValueError("I'm having problems finding a good name"
- " for the backup file. Please move %s out"
- " of the way and try again."
- % (filename + ".backup"))
- backup = filename + ".backup-%d" % i
- i += 1
- os.rename(filename, backup)
- new_json = json.dumps(config, indent=4)
- open(filename, 'w').write(new_json+"\n")
- return False, True
-
- return True, False