+ check_hash(".changes", files, "md5sum", apt_pkg.md5sum)
+ check_hash(".dsc", dsc_files, "md5sum", apt_pkg.md5sum)
+
+ # (hashname, function, originate)
+ # If originate is true, we have to calculate it because
+ # the changes file version is too early for it to be
+ # included
+ hashes = [("sha1", apt_pkg.sha1sum, False),
+ ("sha256", apt_pkg.sha256sum, False)]
+
+ if format <= (1,8):
+ hashes["sha1"] = True
+ hashes["sha256"] = True
+
+ for x in changes:
+ if x.startswith("checksum-"):
+ h = x.split("-",1)[1]
+ if h not in dict(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(hashes):
+ reject("Unsupported checksum field in .dsc" % (h))
+
+ for h,f,o in hashes:
+ try:
+ fs = utils.build_file_list(changes, 0, "checksums-%s" % h, h)
+ if o:
+ 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 o:
+ 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