#! /usr/bin/python
#
# ssh-import-id - Authorize SSH public keys from trusted online identities.
#
# Copyright (c) 2013 Casey Marshall <casey.marshall@gmail.com>
# Copyright (c) 2013 Dustin Kirkland <dustin.kirkland@gmail.com>
#
# ssh-import-id is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, version 3.
#
# ssh-import-id is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with ssh-import-id.  If not, see <http://www.gnu.org/licenses/>.

import os
import json
import subprocess
import sys
try:
	import requests
	# Only versions >= 1.1.0 support SSL certificate verification
	if requests.__version__ >= '1.1.0':
		REQUESTS = True
	else:
		REQUESTS = False
except:
	REQUESTS = False
try:
	from urllib import quote_plus
except (ImportError,):
	from urllib.parse import quote_plus


if __name__ == '__main__':
	if not sys.argv[:1]:
		sys.stderr.write("Usage: %s <github-id>\n" % (sys.argv[0]))
		os._exit(1)
	for ghid in sys.argv[1:]:
		try:
			url = "https://api.github.com/users/%s/keys" % (quote_plus(ghid))
			if REQUESTS:
				text = requests.get(url, verify=True).text
			else:
				# Fall back to using good 'ole ubiquitous wget
				p = subprocess.Popen(["wget", "--no-verbose", "-O", "-", url], stdout=subprocess.PIPE, stderr=subprocess.PIPE)
				stdout, stderr = p.communicate()
				sys.stderr.write(stderr.decode('utf-8'))
				if p.returncode == 0:
					text = stdout.decode('utf-8')
				else:
					raise Exception("Could not fetch URL [%s]" % url)
			data = json.loads(text)
			for keyobj in data:
				sys.stdout.write("%s %s@github/%s\n" % (keyobj['key'], ghid, keyobj['id']))
			sys.stdout.flush()
		except (Exception,):
			e = sys.exc_info()[1]
			sys.stderr.write("ERROR: %s\n" % (str(e)))
			os._exit(1)
		sys.stdout.write("\n")
	os._exit(0)