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#!/usr/bin/env python3
# -*- coding: utf-8 -*-
# vim: set noexpandtab tabstop=4 shiftwidth=4 autoindent smartindent:
# Searches over the network to find out which RPM package distributes
# a given file.
#
# Written by Lucas C. Villa Real <lucasvr@gobolinux.org>
# Released under the GNU GPL version 2 or above.
import os
import re
import sys
import argparse
import subprocess
from html.parser import HTMLParser
class RPMFind_Parser(HTMLParser):
'''
Parses the HTML data output by rpmfind.net
'''
def __init__(self):
self.tags = []
self.candidates = []
HTMLParser.__init__(self)
def handle_starttag(self, tag, attrs):
self.tags.append(tag)
def handle_endtag(self, tag):
self.tags.pop()
def handle_data(self, data):
if len(self.tags) and self.tags[-1] == "a" and data.find(".rpm") >= 0:
self.candidates.append(data)
def get_pkgnames(self):
if len(self.candidates) == 0:
return ""
return self.candidates
class RPMFinder:
def find(self, path, arch, distroname, distrocode):
'''
Searches rpmfind.net for a given file. Arch and distro can
be provided to narrow the search scope. Returns the package
name on success or an empty string if no matches were found.
'''
self.path = path
self.arch = arch
self.distroname = distroname.replace(" ", "+")
self.distrocode = distrocode
self.name = path
for token in [">=", ">", "<=", "<", "="]:
self.name = self.name.replace(token, " ")
self.name = self.name.split(" ")[0]
matches = self.__search_rpmfind_net()
if len(matches) == 0:
return []
if any(op in self.path for op in [">", "<", "="]):
op, version = self.__get_op_and_version()
return self.__filter(matches, op, version)
else:
return matches
def __filter(self, matches, op, version):
filtered = []
for match in matches:
pkg_version = match.replace(self.name, "").replace("{0}.{1}.rpm".format(self.distrocode, self.arch), "").strip("-").strip(".")
sys.stderr.write("package {0}: {1} {2} {3}?\n".format(match, pkg_version, op, version))
# TODO: filter based on op and version
if len(filtered) == 0:
filtered.append(match)
return filtered
def __get_op_and_version(self):
if ">=" in self.path:
return ">=", self.path.split(">=")[1].strip()
elif ">" in self.path:
return ">", self.path.split(">")[1].strip()
elif "<=" in self.path:
return "<=", self.path.split("<=")[1].strip()
elif "<" in self.path:
return "<", self.path.split("<")[1].strip()
elif "=" in self.path:
return "=", self.path.split("=")[1].strip()
else:
sys.stderr.write("could not extract op and version from {}\n".format(self.path))
return None, None
def __search_rpmfind_net(self):
path = self.path.replace("/", "%2F")
baseuri = "http://rpmfind.net/linux/rpm2html/search.php"
query = "?query={0}&submit=Search+...&system={1}&arch={2}".format(path, self.distroname, self.arch)
html = subprocess.check_output(["wget", "--quiet", "{0}{1}".format(baseuri, query), "-O", "-"])
# Compile a regex that catches package names derived from the basename given by self.path.
# Example: perl-DBICx when perl-DBI is wanted.
regex = re.compile(r"{0}\-[0-9]+.*{1}.{2}.rpm".format(self.name, self.distrocode, self.arch))
htmlparser = RPMFind_Parser()
htmlparser.feed(str(html))
pkgnames = htmlparser.get_pkgnames()
result = []
for pkgname in pkgnames:
if regex.match(pkgname):
result.append(pkgname)
return result
def main():
argparser = argparse.ArgumentParser(argument_default="")
argparser.add_argument("--path", type=str, help="File name to search for in the remote RPM databases")
argparser.add_argument("--arch", type=str, help="Architecture (optional)")
argparser.add_argument("--distroname", type=str, help="Distribution name (optional)")
argparser.add_argument("--distrocode", type=str, help="Distribution code (optional)")
args = argparser.parse_args()
if len(args.path) == 0:
argparser.print_help()
sys.exit(1)
pkgname = RPMFinder().find(args.path, args.arch, args.distroname, args.distrocode)
if len(pkgname):
print(pkgname[0])
if __name__ == "__main__":
main()
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