- # Make sure we recognise the format of the Files: field
- format = changes.get("format", "0.0").split(".",1)
- if len(format) == 2:
- format = int(format[0]), int(format[1])
- else:
- format = int(float(format[0])), 0
-
- check_hash(".changes", files, "md5sum", apt_pkg.md5sum)
- check_hash(".dsc", dsc_files, "md5sum", apt_pkg.md5sum)
-
- for x in changes:
- if x.startswith("checksum-"):
- h = x.split("-",1)[1]
- if h not in dict(utils.known_hashes):
- reject("Unsupported checksum field in .changes" % (h))
-
- for x in dsc:
- if x.startswith("checksum-"):
- h = x.split("-",1)[1]
- if h not in dict(utils.known_hashes):
- reject("Unsupported checksum field in .dsc" % (h))
-
- # We have to calculate the hash if we have an earlier changes version than
- # the hash appears in rather than require it exist in the changes file
- # I hate backwards compatibility
- for h,f,v in utils.known_hashes:
- try:
- fs = utils.build_file_list(changes, 0, "checksums-%s" % h, h)
- if format < v:
- create_hash(fs, h, f, files)
- else:
- check_hash(".changes %s" % (h), fs, h, f, files)
- except NoFilesFieldError:
- reject("No Checksums-%s: field in .changes" % (h))
- except UnknownFormatError, format:
- reject("%s: unknown format of .changes" % (format))
- except ParseChangesError, line:
- reject("parse error for Checksums-%s in .changes, can't grok: %s." % (h, line))
-
- if "source" not in changes["architecture"]: continue
-
- try:
- fs = utils.build_file_list(dsc, 1, "checksums-%s" % h, h)
- if format < v:
- create_hash(fs, h, f, dsc_files)
- else:
- check_hash(".dsc %s" % (h), fs, h, f, dsc_files)
- except UnknownFormatError, format:
- reject("%s: unknown format of .dsc" % (format))
- except NoFilesFieldError:
- reject("No Checksums-%s: field in .dsc" % (h))
- except ParseChangesError, line:
- reject("parse error for Checksums-%s in .dsc, can't grok: %s." % (h, line))
-
-################################################################################
-
-def create_hash (lfiles, key, testfn, basedict = None):
- for f in lfiles.keys():
- try:
- file_handle = utils.open_file(f)
- except CantOpenError:
- continue
-
- # Check hash
- basedict[f]['%ssum' % key] = testfn(file_handle)
- file_handle.close()
-
-
-################################################################################
-
-def check_hash (where, lfiles, key, testfn, basedict = None):
- if basedict:
- for f in basedict.keys():
- if f not in lfiles:
- reject("%s: no %s checksum" % (f, key))
-
- for f in lfiles.keys():
- if basedict and f not in basedict:
- reject("%s: extraneous entry in %s checksums" % (f, key))
-
- try:
- file_handle = utils.open_file(f)
- except CantOpenError:
- continue