Merged from ftpmaster

[dak.git] / daklib / utils.py

diff --git a/daklib/utils.py b/daklib/utils.py
index c6eeac2f22ba2c18df1eeb0f65c5669216839e1a..94b7cc53eb0db048090feb7b6afe88b057547ab6 100755 (executable)
--- a/daklib/utils.py
+++ b/daklib/utils.py
@@ -41,6 +41,10 @@ re_multi_line_field = re.compile(r"^\s(.*)")
 re_taint_free = re.compile(r"^[-+~/\.\w]+$")
 
 re_parse_maintainer = re.compile(r"^\s*(\S.*\S)\s*\<([^\>]+)\>")
+re_gpg_uid = re.compile('^uid.*<([^>]*)>')
+
+re_srchasver = re.compile(r"^(\S+)\s+\((\S+)\)$")
+re_verwithext = re.compile(r"^(\d+)(?:\.(\d+))(?:\s+\((\S+)\))?$")
 
 re_srchasver = re.compile(r"^(\S+)\s+\((\S+)\)$")
 
@@ -58,6 +62,9 @@ tried_too_hard_exc = "Tried too hard to find a free filename."
 default_config = "/etc/dak/dak.conf"
 default_apt_config = "/etc/dak/apt.conf"
 
+alias_cache = None
+key_uid_email_cache = {}
+
 ################################################################################
 
 class Error(Exception):
@@ -229,31 +236,48 @@ 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 > 2.0):
-       raise nk_format_exc, format
+    format = re_verwithext.search(changes.get("format", "0.0"))
+    if not format:
+        raise nk_format_exc, "%s" % (changes.get("format","0.0"))
+
+    format = format.groups()
+    if format[1] == None:
+        format = int(float(format[0])), 0, format[2]
+    else:
+        format = int(format[0]), int(format[1]), format[2]
+    if format[2] == None:
+        format = format[:2]
+
+    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 +288,9 @@ 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
 
@@ -449,6 +474,14 @@ def which_apt_conf_file ():
     else:
        return default_apt_config
 
+def which_alias_file():
+    hostname = socket.gethostbyaddr(socket.gethostname())[0]
+    aliasfn = '/var/lib/misc/'+hostname+'/forward-alias'
+    if os.path.exists(aliasfn):
+        return aliasfn
+    else:
+        return None
+
 ################################################################################
 
 # Escape characters which have meaning to SQL's regex comparison operator ('~')
@@ -1009,6 +1042,9 @@ used."""
         reject("no signature found in %s." % (sig_filename))
         bad = 1
     if keywords.has_key("KEYEXPIRED") and not keywords.has_key("GOODSIG"):
+        args = keywords["KEYEXPIRED"]
+        if len(args) >= 1:
+            key = args[0]
         reject("The key (0x%s) used to sign %s has expired." % (key, sig_filename))
         bad = 1
 
@@ -1059,6 +1095,25 @@ used."""
 
 ################################################################################
 
+def gpg_get_key_addresses(fingerprint):
+  """retreive email addresses from gpg key uids for a given fingerprint"""
+  addresses = key_uid_email_cache.get(fingerprint)
+  if addresses != None:
+      return addresses
+  addresses = set()
+  cmd = "gpg --no-default-keyring %s --fingerprint %s" \
+              % (gpg_keyring_args(), fingerprint)
+  (result, output) = commands.getstatusoutput(cmd)
+  if result == 0:
+    for l in output.split('\n'):
+      m = re_gpg_uid.match(l)
+      if m:
+        addresses.add(m.group(1))
+  key_uid_email_cache[fingerprint] = addresses
+  return addresses
+
+################################################################################
+
 # Inspired(tm) by http://www.zopelabs.com/cookbook/1022242603
 
 def wrap(paragraph, max_length, prefix=""):
@@ -1126,6 +1181,21 @@ If 'dotprefix' is non-null, the filename will be prefixed with a '.'."""
 
 ################################################################################
 
+# checks if the user part of the email is listed in the alias file
+
+def is_email_alias(email):
+    global alias_cache
+    if alias_cache == None:
+        aliasfn = which_alias_file()
+        alias_cache = set()
+        if aliasfn:
+            for l in open(aliasfn):
+                alias_cache.add(l.split(':')[0])
+    uid = email.split('@')[0]
+    return uid in alias_cache
+
+################################################################################
+
 apt_pkg.init()
 
 Cnf = apt_pkg.newConfiguration()