-def create_hash (lfiles, key, testfn, basedict = None):
- rejmsg = []
- for f in lfiles.keys():
- try:
- file_handle = open_file(f)
- except CantOpenError:
- rejmsg.append("Could not open file %s for checksumming" % (f))
-
- # Check hash
- if basedict and basedict.has_key(f):
- basedict[f]['%ssum' % key] = testfn(file_handle)
- file_handle.close()
-
- return rejmsg
-
-################################################################################
-
-def check_hash (where, lfiles, key, testfn, basedict = None):
- rejmsg = []
- if basedict:
- for f in basedict.keys():
- if f not in lfiles:
- rejmsg.append("%s: no %s checksum" % (f, key))
-
- for f in lfiles.keys():
- if basedict and f not in basedict:
- rejmsg.append("%s: extraneous entry in %s checksums" % (f, key))
-
- try:
- file_handle = open_file(f)
- except CantOpenError:
- continue
-
- # Check hash
- if testfn(file_handle) != lfiles[f][key]:
- rejmsg.append("%s: %s check failed." % (f, key))
- file_handle.close()
- # Store the hashes for later use
- if basedict:
- basedict[f]['%ssum' % key] = lfiles[f][key]
- # Check size
- actual_size = os.stat(f)[stat.ST_SIZE]
- size = int(lfiles[f]["size"])
- if size != actual_size:
- rejmsg.append("%s: actual file size (%s) does not match size (%s) in %s"
- % (f, actual_size, size, where))
-
- return rejmsg
-
-################################################################################
-
-def ensure_hashes(changes, dsc, files, dsc_files):
- # 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
-
- rejmsg = []
- for x in changes:
- if x.startswith("checksum-"):
- h = x.split("-",1)[1]
- if h not in dict(known_hashes):
- rejmsg.append("Unsupported checksum field in .changes" % (h))
-
- for x in dsc:
- if x.startswith("checksum-"):
- h = x.split("-",1)[1]
- if h not in dict(known_hashes):
- rejmsg.append("Unsupported checksum field in .dsc" % (h))
-
-
- fs_m = build_file_list(changes, 0)
- if "source" in changes["architecture"]:
- fs_md = build_file_list(dsc, 1)
-
- # 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 known_hashes:
- try:
-
- if format < v:
- for m in create_hash(fs_m, h, f, files):
- rejmsg.append(m)
- else:
- fs = build_file_list(changes, 0, "checksums-%s" % h, h)
- for m in check_hash(".changes %s" % (h), fs, h, f, files):
- rejmsg.append(m)
- except NoFilesFieldError:
- rejmsg.append("No Checksums-%s: field in .changes" % (h))
- except UnknownFormatError, format:
- rejmsg.append("%s: unknown format of .changes" % (format))
- except ParseChangesError, line:
- rejmsg.append("parse error for Checksums-%s in .changes, can't grok: %s." % (h, line))
-
- if "source" not in changes["architecture"]: continue
-
- try:
- if format < v:
- for m in create_hash(fs_md, h, f, dsc_files):
- rejmsg.append(m)
- else:
- fs = build_file_list(dsc, 1, "checksums-%s" % h, h)
- for m in check_hash(".dsc %s" % (h), fs, h, f, dsc_files):
- rejmsg.append(m)
- except UnknownFormatError, format:
- rejmsg.append("%s: unknown format of .dsc" % (format))
- except NoFilesFieldError:
- rejmsg.append("No Checksums-%s: field in .dsc" % (h))
- except ParseChangesError, line:
- rejmsg.append("parse error for Checksums-%s in .dsc, can't grok: %s." % (h, line))
-
- return rejmsg
-
-################################################################################
-