+# vi: encoding=utf-8 ts=8 sts=4 sw=4 et
+
+import re
+import gzip
+import time
+import StringIO
+import os
+import fcntl
+import string
+import tempfile
+
+# PLD_Builder:
+import gpg
+import request
+import util
+import log
+
+class B_Queue:
+ def __init__(self, filename):
+ self.name = filename
+ self.requests = []
+ self.fd = None
+
+ def dump(self, fname):
+ (fdno, tmpfname) = tempfile.mkstemp(dir=os.path.dirname(fname))
+ f = os.fdopen(fdno, "w")
+ self.requests.reverse()
+ for r in self.requests:
+ r.dump(f)
+ self.requests.reverse()
+ f.flush()
+ os.fsync(f.fileno())
+ f.close()
+ os.chmod(tmpfname, 0644)
+ os.rename(tmpfname, fname)
+
+ def dump_html(self, fname):
+ (fdno, tmpfname) = tempfile.mkstemp(dir=os.path.dirname(fname))
+ f = os.fdopen(fdno, "w")
+ f.write("""
+<html>
+ <head>
+ <link rel="Shortcut Icon" href="http://www.pld-linux.org/favicon.ico"/>
+ <title>PLD builder queue</title>
+ <link rel="stylesheet" type="text/css" charset="utf-8" media="all" href="style.css">
+ <script type="text/javascript" src="script.js"></script>
+ </head>
+<body>\n"""
+ )
+ self.requests.reverse()
+ for r in self.requests:
+ r.dump_html(f)
+ self.requests.reverse()
+ f.write("</body></html>\n")
+ f.flush()
+ os.fsync(f.fileno())
+ f.close()
+ os.chmod(tmpfname, 0644)
+ os.rename(tmpfname, fname)
+
+ # read possibly compressed, signed queue
+ def read_signed(self):
+ if re.search(r"\.gz$", self.name):
+ f = gzip.open(self.name)
+ else:
+ f = open(self.name)
+ (signers, body) = gpg.verify_sig(f.read())
+ self.signers = signers
+ self.requests = request.parse_requests(body)
+
+ def _open(self):
+ if self.fd == None:
+ if os.access(self.name, os.F_OK):
+ self.fd = open(self.name, "r+")
+ else:
+ self.fd = open(self.name, "w+")
+
+ def read(self):
+ self._open()
+ self.signers = []
+ body = self.fd.read()
+ if string.strip(body) == "":
+ # empty file, don't choke
+ self.requests = []
+ return
+ try:
+ self.requests = request.parse_requests(body)
+ except Exception, e:
+ log.panic("error parsing %s: %s" % (self.name, e))
+ pass
+
+ def _write_to(self, f):
+ f.write("<queue>\n")
+ for r in self.requests:
+ r.write_to(f)
+ f.write("</queue>\n")
+
+ def write(self):
+ self._open()
+ self.fd.seek(0)
+ self.fd.truncate(0)
+ self._write_to(self.fd)
+ self.fd.flush()
+
+ def lock(self, no_block):
+ self._open()
+ op = fcntl.LOCK_EX
+ if no_block:
+ op = op + fcntl.LOCK_NB
+ try:
+ fcntl.flock(self.fd, op)
+ return 1
+ except IOError:
+ return 0
+
+ def unlock(self):
+ fcntl.flock(self.fd, fcntl.LOCK_UN)
+
+ def write_signed(self, name):
+ sio = StringIO.StringIO()
+ self._write_to(sio)
+ sio.seek(0)
+ sio.write(gpg.sign(sio.read()))
+ sio.seek(0)
+ (fdno, tmpname) = tempfile.mkstemp(dir=os.path.dirname(name))
+ f = os.fdopen(fdno, "w")
+ if re.search(r"\.gz$", name):
+ fgz = gzip.GzipFile(filename=name, mode="w", compresslevel=6, fileobj=f)
+ util.sendfile(sio, fgz)
+ fgz.close()
+ else:
+ util.sendfile(sio, f)
+ f.flush()
+ os.fsync(f.fileno())
+ f.close()
+ os.chmod(tmpname, 0644)
+ os.rename(tmpname, name)
+
+ def add(self, req):
+ self.requests.append(req)
+
+ def value(self):
+ return self.requests
TLD / TLD.git / blobdiff