X-Git-Url: https://git.decadent.org.uk/gitweb/?a=blobdiff_plain;f=daklib%2Futils.py;h=0d22bd1d236ec11b6ccf88c9632f5dd72d95bd68;hb=3bb635cd8b8d524e808d537f469031125dba86fc;hp=4e048d3ccccff4f90f827b47995d0d080684f5f1;hpb=0262d251fd547987adf41c8e73b9f66331ade335;p=dak.git diff --git a/daklib/utils.py b/daklib/utils.py old mode 100644 new mode 100755 index 4e048d3c..0d22bd1d --- a/daklib/utils.py +++ b/daklib/utils.py @@ -41,8 +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+\((\S+)\))?$") changes_parse_error_exc = "Can't parse line in .changes file" invalid_dsc_format_exc = "Invalid .dsc file" @@ -58,6 +60,9 @@ 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): @@ -104,17 +109,6 @@ def extract_component_from_section(section): if section.find('/') != -1: component = section.split('/')[0] - if component.lower() == "non-us" and section.find('/') != -1: - s = component + '/' + section.split('/')[1] - if Cnf.has_key("Component::%s" % s): # Avoid e.g. non-US/libs - component = s - - if section.lower() == "non-us": - component = "non-US/main" - - # non-US prefix is case insensitive - if component.lower()[:6] == "non-us": - component = "non-US"+component[6:] # Expand default component if component == "": @@ -122,8 +116,6 @@ def extract_component_from_section(section): component = section else: component = "main" - elif component == "non-US": - component = "non-US/main" return (section, component) @@ -242,31 +234,48 @@ 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 @@ -277,8 +286,9 @@ 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 @@ -386,8 +396,6 @@ def send_mail (message, filename=""): def poolify (source, component): if component: component += '/' - # FIXME: this is nasty - component = component.lower().replace("non-us/", "non-US/") if source[:3] == "lib": return component + source[:4] + '/' + source + '/' else: @@ -464,6 +472,14 @@ 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 ('~') @@ -885,7 +901,7 @@ def process_gpgv_output(status): internal_error += "gpgv status line is malformed (incorrect prefix '%s').\n" % (gnupg) continue args = split[2:] - if keywords.has_key(keyword) and (keyword != "NODATA" and keyword != "SIGEXPIRED"): + if keywords.has_key(keyword) and keyword not in [ "NODATA", "SIGEXPIRED", "KEYEXPIRED" ]: internal_error += "found duplicate status token ('%s').\n" % (keyword) continue else: @@ -904,7 +920,7 @@ on error.""" if not keyserver: keyserver = Cnf["Dinstall::KeyServer"] if not keyring: - keyring = Cnf["Dinstall::GPGKeyring"] + keyring = Cnf.ValueList("Dinstall::GPGKeyring")[0] # Ensure the filename contains no shell meta-characters or other badness if not re_taint_free.match(filename): @@ -939,6 +955,14 @@ on error.""" ################################################################################ +def gpg_keyring_args(keyrings=None): + if not keyrings: + keyrings = Cnf.ValueList("Dinstall::GPGKeyring") + + return " ".join(["--keyring %s" % x for x in keyrings]) + +################################################################################ + def check_signature (sig_filename, reject, data_filename="", keyrings=None, autofetch=None): """Check the signature of a file and return the fingerprint if the signature is valid or 'None' if it's not. The first argument is the @@ -963,7 +987,7 @@ used.""" return None if not keyrings: - keyrings = (Cnf["Dinstall::PGPKeyring"], Cnf["Dinstall::GPGKeyring"]) + keyrings = Cnf.ValueList("Dinstall::GPGKeyring") # Autofetch the signing key if that's enabled if autofetch == None: @@ -976,10 +1000,9 @@ used.""" # Build the command line status_read, status_write = os.pipe(); - cmd = "gpgv --status-fd %s" % (status_write) - for keyring in keyrings: - cmd += " --keyring %s" % (keyring) - cmd += " %s %s" % (sig_filename, data_filename) + cmd = "gpgv --status-fd %s %s %s %s" % ( + status_write, gpg_keyring_args(keyrings), sig_filename, data_filename) + # Invoke gpgv on the file (output, status, exit_status) = gpgv_get_status_output(cmd, status_read, status_write) @@ -995,9 +1018,6 @@ used.""" bad = "" # Now check for obviously bad things in the processed output - if keywords.has_key("SIGEXPIRED"): - reject("The key used to sign %s has expired." % (sig_filename)) - bad = 1 if keywords.has_key("KEYREVOKED"): reject("The key used to sign %s has been revoked." % (sig_filename)) bad = 1 @@ -1019,6 +1039,12 @@ used.""" if keywords.has_key("NODATA"): 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 if bad: return None @@ -1053,7 +1079,7 @@ used.""" # Finally ensure there's not something we don't recognise known_keywords = Dict(VALIDSIG="",SIG_ID="",GOODSIG="",BADSIG="",ERRSIG="", SIGEXPIRED="",KEYREVOKED="",NO_PUBKEY="",BADARMOR="", - NODATA="") + NODATA="",NOTATION_DATA="",NOTATION_NAME="",KEYEXPIRED="") for keyword in keywords.keys(): if not known_keywords.has_key(keyword): @@ -1067,6 +1093,25 @@ 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=""): @@ -1134,6 +1179,21 @@ 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()