-# vi: encoding=utf-8 ts=8 sts=4 sw=4 et
-
-import string
-import signal
-import os
-import urllib
-import urllib2
-import StringIO
-import sys
-import gzip
-
-import path
-import log
-import status
-import lock
-import util
-import gpg
-import request
-import loop
-import socket
-from acl import acl
-from bqueue import B_Queue
-from config import config, init_conf
-
-last_count = 0
-
-def alarmalarm(signum, frame):
- raise IOError, 'TCP connection hung'
-
-def has_new(control_url):
- global last_count
- cnt_f = open(path.last_req_no_file)
- try:
- last_count = int(string.strip(cnt_f.readline()))
- except ValueError, e:
- last_count = 0
-
- cnt_f.close()
- f = None
- socket.setdefaulttimeout(240)
- signal.signal(signal.SIGALRM, alarmalarm)
- signal.alarm(300)
- try:
- headers = { 'Cache-Control': 'no-cache', 'Pragma': 'no-cache' }
- req = urllib2.Request(url=control_url + "/max_req_no", headers=headers)
- f = urllib2.urlopen(req)
- count = int(string.strip(f.readline()))
- signal.alarm(0)
- except Exception, e:
- signal.alarm(0)
- log.error("can't fetch %s: %s" % (control_url + "/max_req_no", e))
- sys.exit(1)
- res = 0
- if count != last_count:
- res = 1
- f.close()
- return res
-
-def fetch_queue(control_url):
- signal.signal(signal.SIGALRM, alarmalarm)
- socket.setdefaulttimeout(240)
- signal.alarm(300)
- try:
- headers = { 'Cache-Control': 'no-cache', 'Pragma': 'no-cache' }
- req = urllib2.Request(url=control_url + "/queue.gz", headers=headers)
- f = urllib2.urlopen(req)
- signal.alarm(0)
- except Exception, e:
- signal.alarm(0)
- log.error("can't fetch %s: %s" % (control_url + "/queue.gz", e))
- sys.exit(1)
- sio = StringIO.StringIO()
- util.sendfile(f, sio)
- f.close()
- sio.seek(0)
- f = gzip.GzipFile(fileobj = sio)
- (signers, body) = gpg.verify_sig(f.read())
- u = acl.user_by_email(signers)
- if u == None:
- log.alert("queue.gz not signed with signature of valid user: %s" % signers)
- sys.exit(1)
- if not u.can_do("sign_queue", "all"):
- log.alert("user %s is not allowed to sign my queue" % u.login)
- sys.exit(1)
- return request.parse_requests(body)
-
-def handle_reqs(builder, reqs):
- qpath = path.queue_file + "-" + builder
- if not os.access(qpath, os.F_OK):
- util.append_to(qpath, "<queue/>\n")
- q = B_Queue(qpath)
- q.lock(0)
- q.read()
- for r in reqs:
- if r.kind != 'group':
- raise Exception, 'handle_reqs: fatal: huh? %s' % r.kind
- need_it = 0
- for b in r.batches:
- if builder in b.builders:
- need_it = 1
- if need_it:
- log.notice("queued %s (%d) for %s" % (r.id, r.no, builder))
- q.add(r)
- q.write()
- q.unlock()
-
-def main():
- lck = lock.lock("request_fetcher", non_block = True)
- if lck == None:
- sys.exit(1)
- init_conf()
- acl.try_reload()
-
- status.push("fetching requests")
- if has_new(config.control_url):
- q = fetch_queue(config.control_url)
- max_no = 0
- q_new = []
- for r in q:
- if r.no > max_no:
- max_no = r.no
- if r.no > last_count:
- q_new.append(r)
- for b in config.binary_builders:
- handle_reqs(b, q_new)
- f = open(path.last_req_no_file, "w")
- f.write("%d\n" % max_no)
- f.close()
- status.pop()
- lck.close()
-
-if __name__ == '__main__':
- # http connection is established (and few bytes transferred through it)
- # each $secs seconds.
- loop.run_loop(main, secs = 10)