* dak/utils.py: build_file_list() extra parameters so it can

build a file list for checksums-foo fields. Don't use float() to
compare formats, because Format: 1.10 should compare greater than
Format: 1.9 (use "1.9".split(".",1) and tuple comparison instead)

* dak/process_unchecked.py: check_md5sum becomes check_hashes
and check_hash. If changes format is 1.8 or later, also check
checksums-sha1 and checksums-sha256 for both .changes and .dsc.

ChangeLog

+2008-04-11  Anthony Towns  <ajt@debian.org>
+
+	* dak/utils.py: build_file_list() extra parameters so it can
+	build a file list for checksums-foo fields. Don't use float() to
+	compare formats, because Format: 1.10 should compare greater than
+	Format: 1.9 (use "1.9".split(".",1) and tuple comparison instead)
+
+	* dak/process_unchecked.py: check_md5sum becomes check_hashes
+	and check_hash. If changes format is 1.8 or later, also check
+	checksums-sha1 and checksums-sha256 for both .changes and .dsc.
+
 2008-04-07  Joerg Jaspert  <joerg@debian.org>
 
 	* daklib/utils.py (build_file_list): Check for dpkg .changes

dak/process_unchecked.py

@@ -899,40 +899,59 @@ def check_urgency ():
 
 ################################################################################
 
-def check_md5sums ():
-    for file in files.keys():
-        try:
-            file_handle = daklib.utils.open_file(file)
-        except daklib.utils.cant_open_exc:
-            continue
+def check_hashes ():
+    # 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 md5sum
-        if apt_pkg.md5sum(file_handle) != files[file]["md5sum"]:
-            reject("%s: md5sum check failed." % (file))
-        file_handle.close()
-        # Check size
-        actual_size = os.stat(file)[stat.ST_SIZE]
-        size = int(files[file]["size"])
-        if size != actual_size:
-            reject("%s: actual file size (%s) does not match size (%s) in .changes"
-                   % (file, actual_size, size))
+    check_hash(".changes", files, "md5sum", apt_pkg.md5sum)
+    check_hash(".dsc", dsc_files, "md5sum", apt_pkg.md5sum)
+
+    if format >= (1,8):
+        hashes = [("sha1", apt_pkg.sha1sum),
+                  ("sha256", apt_pkg.sha256sum)]
+    else:
+        hashes = []
+
+    for h,f in hashes:
+        fs = daklib.utils.build_file_list(changes, 0, "checksums-%s" % h, h)
+        check_hash( ".changes %s" % (h), fs, h, f, files)
+
+        if "source" not in changes["architecture"]: continue
+
+        fs = daklib.utils.build_file_list(dsc, 1, "checksums-%s" % h, h)
+        check_hash( ".dsc %s" % (h), fs, h, f, dsc_files)
+
+################################################################################
+
+def check_hash (where, files, key, testfn, basedict = None):
+    if basedict:
+        for file in basedict.keys():
+            if file not in files:
+                reject("%s: no %s checksum" % (file, key))
+
+    for file in files.keys():
+        if basedict and file not in basedict:
+            reject("%s: extraneous entry in %s checksums" % (file, key))
 
-    for file in dsc_files.keys():
         try:
             file_handle = daklib.utils.open_file(file)
         except daklib.utils.cant_open_exc:
             continue
 
-        # Check md5sum
-        if apt_pkg.md5sum(file_handle) != dsc_files[file]["md5sum"]:
-            reject("%s: md5sum check failed." % (file))
+        # Check hash
+        if testfn(file_handle) != files[file][key]:
+            reject("%s: %s check failed." % (file, key))
         file_handle.close()
         # Check size
         actual_size = os.stat(file)[stat.ST_SIZE]
-        size = int(dsc_files[file]["size"])
+        size = int(files[file]["size"])
         if size != actual_size:
-            reject("%s: actual file size (%s) does not match size (%s) in .dsc"
-                   % (file, actual_size, size))
+            reject("%s: actual file size (%s) does not match size (%s) in %s"
+                   % (file, actual_size, size, where))
 
 ################################################################################
 
@@ -1518,7 +1537,7 @@ def process_it (changes_file):
                 valid_dsc_p = check_dsc()
                 if valid_dsc_p:
                     check_source()
-                check_md5sums()
+                check_hashes()
                 check_urgency()
                 check_timestamps()
                 check_signed_by_key()

daklib/utils.py

@@ -229,31 +229,42 @@ The rules for (signing_rules == 1)-mode are:
 
 # Dropped support for 1.4 and ``buggy dchanges 3.4'' (?!) compared to di.pl
 
-def build_file_list(changes, is_a_dsc=0):
+def build_file_list(changes, is_a_dsc=0, field="files", hashname="md5sum"):
     files = {}
 
     # Make sure we have a Files: field to parse...
-    if not changes.has_key("files"):
-	raise no_files_exc
+    if not changes.has_key(field):
+        raise no_files_exc
 
     # Make sure we recognise the format of the Files: field
-    format = changes.get("format", "")
-    if format != "":
-	format = float(format)
-    if not is_a_dsc and (format < 1.5 or format > 1.7):
-	raise nk_format_exc, format
+    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
+
+    if is_a_dsc:
+        if format != (1,0):
+            raise nk_format_exc, "%s" % (changes.get("format","0.0"))
+    else:
+        if (format < (1,5) or format > (1,8)):
+            raise nk_format_exc, "%s" % (changes.get("format","0.0"))
+	if field != "files" and format < (1,8):
+            raise nk_format_exc, "%s" % (changes.get("format","0.0"))
+
+    includes_section = (not is_a_dsc) and field == "files"
 
     # Parse each entry/line:
-    for i in changes["files"].split('\n'):
+    for i in changes[field].split('\n'):
         if not i:
             break
         s = i.split()
         section = priority = ""
         try:
-            if is_a_dsc:
-                (md5, size, name) = s
-            else:
+            if includes_section:
                 (md5, size, section, priority, name) = s
+            else:
+                (md5, size, name) = s
         except ValueError:
             raise changes_parse_error_exc, i
 
@@ -264,8 +275,9 @@ def build_file_list(changes, is_a_dsc=0):
 
         (section, component) = extract_component_from_section(section)
 
-        files[name] = Dict(md5sum=md5, size=size, section=section,
+        files[name] = Dict(size=size, section=section,
                            priority=priority, component=component)
+        files[name][hashname] = md5
 
     return files