Issue 4028 - Add support for Edge extensions to buildtools

packagerEdge.py

 # 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 base64
 import hashlib
+import json
 import mimetypes
 import os
 import zipfile
 
 import packager
 import packagerChrome
 
+# Files and directories expected inside of the .APPX archive.
 MANIFEST = 'AppxManifest.xml'
 CONTENT_TYPES = '[Content_Types].xml'
 BLOCKMAP = 'AppxBlockMap.xml'
+EXTENSION_DIR = 'Extension'
+ASSETS_DIR = 'Assets'
+
+# Size of uncompressed block in the APPX block map.
 BLOCKSIZE = 64 * 1024
+
+defaultLocale = packagerChrome.defaultLocale
 
 
 def _get_template_for(filename):
     return packager.getTemplate('edge/{}.tmpl'.format(filename))
 
 
 def _lfh_size(filename):
     """Compute the size of zip local file header for `filename`."""
     try:
         filename = filename.encode('utf-8')
@@ skipping 10 matching lines @@
         'lfh_size': _lfh_size(filename),
         'blocks': [
             {'hash': base64.b64encode(hashlib.sha256(block).digest())}
             for block in blocks
         ]
     }
 
 
 def create_appx_blockmap(files):
     """Create APPX blockmap for the list of files."""
+    # We don't support AppxBlockmap.xml generation for compressed zip files at
+    # the moment. The only way to reliably calculate the compressed size of
+    # each 64k chunk in the zip file is to override the relevant parts of
+    # `zipfile` library. We have chosen to not do it so we produce an
+    # uncompressed zip file that is later repackaged by Windows Store with
+    # compression.
     template = _get_template_for(BLOCKMAP)
     files = [_make_blockmap_entry(n, d) for n, d in files.items()]
     return template.render(files=files).encode('utf-8')
 
 
-def create_appx_manifest(params, files):
+def load_translation(files, locale):
+    """Load translation strings for locale from files."""
+    path = '{}/_locales/{}/messages.json'.format(EXTENSION_DIR, locale)
+    return json.loads(files[path])
+
+
+def pad_version(version):
+    """Make sure version number has 4 groups of digits."""
+    groups = (version.split('.') + ['0', '0', '0'])[:4]
+    return '.'.join(groups)
+
+
+def create_appx_manifest(params, files, release_build=False):
     """Create AppxManifest.xml."""
-    template = _get_template_for(MANIFEST)
     params = dict(params)
     metadata = params['metadata']
-    params['package_identity'] = dict(metadata.items('package_identity'))
     w = params['windows_version'] = {}
     w['min'], w['max'] = metadata.get('compat', 'windows').split('/')
     params.update(metadata.items('general'))
+    params['version'] = pad_version(params['version'])
+
+    translation = load_translation(files, defaultLocale)
+    name_key = 'name' if release_build else 'name_devbuild'
+    params['display_name'] = translation[name_key]['message']
+    params['description'] = translation['description']['message']
+
     for size in ['44', '50', '150']:
-        path = 'Assets/logo_{}.png'.format(size)
+        path = '{}/logo_{}.png'.format(ASSETS_DIR, size)
         if path not in files:
             raise KeyError(path + 'is not found in files')
         params['logo_' + size] = path.replace('/', '\\')
+
+    template = _get_template_for(MANIFEST)
     return template.render(params).encode('utf-8')
 
 
 def move_files_to_extension(files):
     """Move all files into `Extension` folder for APPX packaging."""
     # We sort the files to ensure that 'Extension/xyz' is moved before 'xyz'.
     # If 'xyz' is moved first, it would overwrite 'Extension/xyz' and its
     # original content would be lost.
     names = sorted(files.keys(), key=len, reverse=True)
     for filename in names:
-        files['Extension/' + filename] = files.pop(filename)
+        files['{}/{}'.format(EXTENSION_DIR, filename)] = files.pop(filename)
 
 
 def create_content_types_map(filenames):
     """Create [Content_Types].xml -- a mime type map."""
     params = {'defaults': {}, 'overrides': {}}
     overrides = {
         BLOCKMAP: 'application/vnd.ms-appx.blockmap+xml',
         MANIFEST: 'application/vnd.ms-appx.manifest+xml'
     }
     for filename in filenames:
@@ skipping 46 matching lines @@
     if metadata.has_section('import_locales'):
         packagerChrome.importGeckoLocales(params, files)
 
     files['manifest.json'] = packagerChrome.createManifest(params, files)
 
     move_files_to_extension(files)
 
     if metadata.has_section('appx_assets'):
         for name, path in metadata.items('appx_assets'):
             path = os.path.join(baseDir, path)
-            files.read(path, 'Assets/' + name)
+            files.read(path, '{}/{}'.format(ASSETS_DIR, name))
 
-    files[MANIFEST] = create_appx_manifest(params, files)
+    files[MANIFEST] = create_appx_manifest(params, files, releaseBuild)
+    files[BLOCKMAP] = create_appx_blockmap(files)
     files[CONTENT_TYPES] = create_content_types_map(files.keys() + [BLOCKMAP])
 
-    # We don't support AppxBlockmap.xml generation for compressed zip files at
-    # the moment. The only way to reliably calculate the compressed size of
-    # each 64k chunk in the zip file is to override the relevant parts of
-    # `zipfile` library. We have chosen to not do it for now, so we produce
-    # an uncompressed zip file.
-    files[BLOCKMAP] = create_appx_blockmap(files)
-
-    # TODO: Implement AppxBlockmap.xml generation for compressed zip files.
-    # https://issues.adblockplus.org/ticket/4149
-    files.zip(outfile, compress=False)
+    files.zip(outfile, compression=zipfile.ZIP_STORED)