def parse(data=None, fileobj=None, location=None):
"""Reads the pkg(5) publisher JSON formatted data at 'location'
or from the provided file-like object 'fileobj' and returns a
list of tuples of the format (publisher object, pkg_names).
pkg_names is a list of strings representing package names or
FMRIs. If any pkg_names not specific to a publisher were
provided, the last tuple returned will be of the format (None,
pkg_names).
'data' is an optional string containing the p5i data.
'fileobj' is an optional file-like object that must support a
'read' method for retrieving data.
'location' is an optional string value that should either start
with a leading slash and be pathname of a file or a URI string.
If it is a URI string, supported protocol schemes are 'file',
'ftp', 'http', and 'https'.
'data' or 'fileobj' or 'location' must be provided."""
if data is None and location is None and fileobj is None:
raise api_errors.InvalidResourceLocation(location)
if location is not None:
if location.find("://") == -1 and \
not location.startswith("file:/"):
# Convert the file path to a URI.
location = os.path.abspath(location)
location = urlparse.urlunparse(
("file", "", urllib.pathname2url(location), "", "", ""))
try:
fileobj = urllib2.urlopen(location)
except (EnvironmentError, ValueError, urllib2.HTTPError) as e:
raise api_errors.RetrievalError(e, location=location)
try:
if data is not None:
dump_struct = json.loads(data)
else:
dump_struct = json.load(fileobj)
except (EnvironmentError, urllib2.HTTPError) as e:
raise api_errors.RetrievalError(e)
except ValueError as e:
# Not a valid JSON file.
raise api_errors.InvalidP5IFile(e)
try:
ver = int(dump_struct["version"])
except KeyError:
raise api_errors.InvalidP5IFile(_("missing version"))
except ValueError:
raise api_errors.InvalidP5IFile(_("invalid version"))
if ver > CURRENT_VERSION:
raise api_errors.UnsupportedP5IFile()
result = []
try:
plist = dump_struct.get("publishers", [])
for p in plist:
alias = p.get("alias", None)
prefix = p.get("name", None)
if not prefix:
prefix = "Unknown"
pub = publisher.Publisher(prefix, alias=alias)
pkglist = p.get("packages", [])
result.append((pub, pkglist))
for r in p.get("repositories", []):
rargs = {}
for prop in ("collection_type", "description", "name",
"refresh_seconds", "registration_uri"):
val = r.get(prop, None)
if val is None or val == "None":
continue
rargs[prop] = val
for prop in ("legal_uris", "mirrors", "origins",
"related_uris"):
val = r.get(prop, [])
if not isinstance(val, list):
continue
rargs[prop] = val
repo = publisher.Repository(**rargs)
pub.repository = repo
pkglist = dump_struct.get("packages", [])
if pkglist:
result.append((None, pkglist))
except (api_errors.PublisherError, TypeError, ValueError) as e:
raise api_errors.InvalidP5IFile(str(e))
return result
try:
fileobj = urllib2.urlopen(location)
except (EnvironmentError, ValueError, urllib2.HTTPError), e:
raise api_errors.RetrievalError(e, location=location)
try:
if data:
dump_struct = json.loads(data)
else:
dump_struct = json.load(fileobj)
except (EnvironmentError, urllib2.HTTPError), e:
raise api_errors.RetrievalError(e)
except ValueError, e:
# Not a valid JSON file.
raise api_errors.InvalidP5IFile(e)
try:
ver = int(dump_struct["version"])
except KeyError:
raise api_errors.InvalidP5IFile(_("missing version"))
except ValueError:
raise api_errors.InvalidP5IFile(_("invalid version"))
if ver > CURRENT_VERSION:
raise api_errors.UnsupportedP5IFile()
result = []
try:
plist = dump_struct.get("publishers", [])