# Utility functions
# Copyright (C) 2000, 2001, 2002, 2003 James Troup <james@nocrew.org>
-# $Id: utils.py,v 1.57 2003-03-14 19:05:13 troup Exp $
+# $Id: utils.py,v 1.58 2003-09-07 13:54:20 troup Exp $
+
+################################################################################
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
unknown_hostname_exc = "Unknown hostname";
cant_overwrite_exc = "Permission denied; can't overwrite existent file."
file_exists_exc = "Destination file exists";
-send_mail_invalid_args_exc = "Both arguments are non-null.";
sendmail_failed_exc = "Sendmail invocation failed";
tried_too_hard_exc = "Tried too hard to find a free filename.";
default_config = "/etc/katie/katie.conf";
default_apt_config = "/etc/katie/apt.conf";
-######################################################################################
+################################################################################
def open_file(filename, mode='r'):
try:
f = open(filename, mode);
except IOError:
- raise cant_open_exc, filename
+ raise cant_open_exc, filename;
return f
-######################################################################################
+################################################################################
def our_raw_input(prompt=""):
if prompt:
sys.stdout.flush();
try:
ret = raw_input();
- return ret
+ return ret;
except EOFError:
- sys.stderr.write('\nUser interrupt (^D).\n');
+ sys.stderr.write("\nUser interrupt (^D).\n");
raise SystemExit;
-######################################################################################
+################################################################################
def str_isnum (s):
for c in s:
return 0;
return 1;
-######################################################################################
+################################################################################
def extract_component_from_section(section):
component = "";
return (section, component);
-######################################################################################
+################################################################################
+
+# Parses a changes file and returns a dictionary where each field is a
+# key. The mandatory first argument is the filename of the .changes
+# file.
-# dsc_whitespace_rules turns on strict format checking to avoid
+# dsc_whitespace_rules is an optional boolean argument which defaults
+# to off. If true, it turns on strict format checking to avoid
# allowing in source packages which are unextracable by the
# inappropriately fragile dpkg-source.
#
# The rules are:
#
+# o The PGP header consists of "-----BEGIN PGP SIGNED MESSAGE-----"
+# followed by any PGP header data and must end with a blank line.
#
-# o The PGP header consists of "-----BEGIN PGP SIGNED MESSAGE-----"
-# followed by any PGP header data and must end with a blank line.
-#
-# o The data section must end with a blank line and must be followed by
-# "-----BEGIN PGP SIGNATURE-----".
+# o The data section must end with a blank line and must be followed by
+# "-----BEGIN PGP SIGNATURE-----".
def parse_changes(filename, dsc_whitespace_rules=0):
- changes_in = open_file(filename);
error = "";
changes = {};
+
+ changes_in = open_file(filename);
lines = changes_in.readlines();
if not lines:
raise invalid_dsc_format_exc, index;
inside_signature = 0;
break;
+ else:
+ continue;
if line.startswith("-----BEGIN PGP SIGNATURE"):
break;
if line.startswith("-----BEGIN PGP SIGNED MESSAGE"):
changes_in.close();
changes["filecontents"] = "".join(lines);
- if error != "":
+ if error:
raise changes_parse_error_exc, error;
return changes;
-######################################################################################
+################################################################################
# Dropped support for 1.4 and ``buggy dchanges 3.4'' (?!) compared to di.pl
def build_file_list(changes, is_a_dsc=0):
- files = {}
- format = changes.get("format", "")
+ files = {};
+
+ # Make sure we have a Files: field to parse...
+ if not changes.has_key("files"):
+ raise no_files_exc;
+
+ # Make sure we recognise the format of the Files: field
+ format = changes.get("format", "");
if format != "":
- format = float(format)
+ format = float(format);
if not is_a_dsc and (format < 1.5 or format > 2.0):
raise nk_format_exc, format;
- # No really, this has happened. Think 0 length .dsc file.
- if not changes.has_key("files"):
- raise no_files_exc
-
- for i in changes["files"].split("\n"):
- if i == "":
- break
+ # Parse each entry/line:
+ for i in changes["files"].split('\n'):
+ if not i:
+ break;
s = i.split();
section = priority = "";
try:
if is_a_dsc:
- (md5, size, name) = s
+ (md5, size, name) = s;
else:
- (md5, size, section, priority, name) = s
+ (md5, size, section, priority, name) = s;
except ValueError:
- raise changes_parse_error_exc, i
+ raise changes_parse_error_exc, i;
- if section == "": section = "-"
- if priority == "": priority = "-"
+ if section == "":
+ section = "-";
+ if priority == "":
+ priority = "-";
(section, component) = extract_component_from_section(section);
- files[name] = { "md5sum" : md5,
- "size" : size,
- "section": section,
- "priority": priority,
- "component": component }
+ files[name] = Dict(md5sum=md5, size=size, section=section,
+ priority=priority, component=component);
return files
-######################################################################################
+################################################################################
# Fix the `Maintainer:' field to be an RFC822 compatible address.
# cf. Debian Policy Manual (D.2.4)
rfc822 = "%s (%s)" % (email, name);
return (rfc822, name, email)
-######################################################################################
+################################################################################
# sendmail wrapper, takes _either_ a message string or a file as arguments
def send_mail (message, filename=""):
- # Sanity check arguments
- if message != "" and filename != "":
- raise send_mail_invalid_args_exc;
-
# If we've been passed a string dump it into a temporary file
- if message != "":
+ if message:
filename = tempfile.mktemp();
fd = os.open(filename, os.O_RDWR|os.O_CREAT|os.O_EXCL, 0700);
os.write (fd, message);
raise sendmail_failed_exc, output;
# Clean up any temporary files
- if message !="":
+ if message:
os.unlink (filename);
-######################################################################################
+################################################################################
def poolify (source, component):
- if component != "":
+ if component:
component += '/';
# FIXME: this is nasty
- component = component.lower().replace('non-us/', 'non-US/');
+ component = component.lower().replace("non-us/", "non-US/");
if source[:3] == "lib":
return component + source[:4] + '/' + source + '/'
else:
return component + source[:1] + '/' + source + '/'
-######################################################################################
+################################################################################
def move (src, dest, overwrite = 0, perms = 0664):
if os.path.exists(dest) and os.path.isdir(dest):
shutil.copy2(src, dest);
os.chmod(dest, perms);
-######################################################################################
+################################################################################
def where_am_i ():
res = socket.gethostbyaddr(socket.gethostname());
else:
return default_apt_config;
-######################################################################################
+################################################################################
# Escape characters which have meaning to SQL's regex comparison operator ('~')
# (woefully incomplete)
s = s.replace('.', '\\\\.');
return s
-######################################################################################
+################################################################################
# Perform a substition of template
def TemplateSubst(map, filename):
file.close();
return template;
-######################################################################################
+################################################################################
def fubar(msg, exit_code=1):
sys.stderr.write("E: %s\n" % (msg));
def warn(msg):
sys.stderr.write("W: %s\n" % (msg));
-######################################################################################
+################################################################################
# Returns the user name with a laughable attempt at rfc822 conformancy
# (read: removing stray periods).
def whoami ():
return pwd.getpwuid(os.getuid())[4].split(',')[0].replace('.', '');
-######################################################################################
+################################################################################
def size_type (c):
t = " b";
################################################################################
def cc_fix_changes (changes):
- o = changes.get("architecture", "")
- if o != "":
- del changes["architecture"]
- changes["architecture"] = {}
+ o = changes.get("architecture", "");
+ if o:
+ del changes["architecture"];
+ changes["architecture"] = {};
for j in o.split():
- changes["architecture"][j] = 1
+ changes["architecture"][j] = 1;
# Sort by source name, source version, 'have source', and then by filename
def changes_compare (a, b):
finally:
os._exit(1);
- # parent
+ # Parent
os.close(p2cread)
os.dup2(c2pread, c2pwrite);
os.dup2(errout, errin);
filename whose signature should be checked. The second argument is a
reject function and is called when an error is found. The reject()
function must allow for two arguments: the first is the error message,
-the second is an optional prefix string. It is possible that reject()
-is called more than once during an invocation of check_signature()."""
+the second is an optional prefix string. It's possible for reject()
+to be called more than once during an invocation of check_signature()."""
# Ensure the filename contains no shell meta-characters or other badness
if not re_taint_free.match(os.path.basename(filename)):
# Now check for obviously bad things in the processed output
if keywords.has_key("SIGEXPIRED"):
- reject("key used to sign %s has expired." % (filename));
+ reject("The key used to sign %s has expired." % (filename));
bad = 1;
if keywords.has_key("KEYREVOKED"):
- reject("key used to sign %s has been revoked." % (filename));
+ reject("The key used to sign %s has been revoked." % (filename));
bad = 1;
if keywords.has_key("BADSIG"):
reject("bad signature on %s." % (filename));
reject("failed to check signature on %s." % (filename));
bad = 1;
if keywords.has_key("NO_PUBKEY"):
- reject("key used to sign %s not found in keyring." % (filename));
+ args = keywords["NO_PUBKEY"];
+ if len(args) >= 1:
+ key = args[0];
+ reject("The key (0x%s) used to sign %s wasn't found in the keyring(s)." % (key, filename));
bad = 1;
if keywords.has_key("BADARMOR"):
- reject("ascii armour of signature was corrupt in %s." % (filename));
+ reject("ASCII armour of signature was corrupt in %s." % (filename));
bad = 1;
if keywords.has_key("NODATA"):
reject("no signature found in %s." % (filename));
################################################################################
-apt_pkg.init()
+# Inspired(tm) by http://www.zopelabs.com/cookbook/1022242603
+
+def wrap(paragraph, max_length, prefix=""):
+ line = "";
+ s = "";
+ have_started = 0;
+ words = paragraph.split();
+
+ for word in words:
+ word_size = len(word);
+ if word_size > max_length:
+ if have_started:
+ s += line + '\n' + prefix;
+ s += word + '\n' + prefix;
+ else:
+ if have_started:
+ new_length = len(line) + word_size + 1;
+ if new_length > max_length:
+ s += line + '\n' + prefix;
+ line = word;
+ else:
+ line += ' ' + word;
+ else:
+ line = word;
+ have_started = 1;
+
+ if have_started:
+ s += line;
+
+ return s;
+
+################################################################################
+
+# Relativize an absolute symlink from 'src' -> 'dest' relative to 'root'.
+# Returns fixed 'src'
+def clean_symlink (src, dest, root):
+ src = src.replace(root, '', 1);
+ dest = dest.replace(root, '', 1);
+ dest = os.path.dirname(dest);
+ new_src = '../' * len(dest.split('/'));
+ return new_src + src;
+
+################################################################################
+
+apt_pkg.init();
Cnf = apt_pkg.newConfiguration();
apt_pkg.ReadConfigFileISC(Cnf,default_config);
if which_conf_file() != default_config:
- apt_pkg.ReadConfigFileISC(Cnf,which_conf_file())
+ apt_pkg.ReadConfigFileISC(Cnf,which_conf_file());
################################################################################
projects / dak / commitdiff