Preliminary version of rpkid et al with all the TLS code ripped out.

Not quite ready for cutover yet, may need some conversion tools and
instructions, but checking this into a branch (well, sort of) so that
others can look at the code changes involved, try it out themselves,
etc.  At some point this will merge back into rpkid/ directory and
there will be only one, without TLS, but converting the testbed is
going to require a flag day, so need to keep the TLS version around
until then.

svn path=/rpkid.without_tls; revision=3449

1 files changed, 111 insertions, 0 deletions

diff --git a/rpkid.without_tls/rpki/log.py b/rpkid.without_tls/rpki/log.py
new file mode 100644
index 00000000..9d346385
--- /dev/null
+++ b/rpkid.without_tls/rpki/log.py
@@ -0,0 +1,111 @@
+"""
+Logging facilities for RPKI libraries.
+
+$Id$
+
+Copyright (C) 2009--2010  Internet Systems Consortium ("ISC")
+
+Permission to use, copy, modify, and distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
+REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
+INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
+OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+PERFORMANCE OF THIS SOFTWARE.
+
+Portions copyright (C) 2007--2008  American Registry for Internet Numbers ("ARIN")
+
+Permission to use, copy, modify, and distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND ARIN DISCLAIMS ALL WARRANTIES WITH
+REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+AND FITNESS.  IN NO EVENT SHALL ARIN BE LIABLE FOR ANY SPECIAL, DIRECT,
+INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
+OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+PERFORMANCE OF THIS SOFTWARE.
+"""
+
+import syslog, sys, os, time
+import traceback as tb
+
+## @var enable_trace
+# Whether call tracing is enabled.
+
+enable_trace = False
+
+## @var use_syslog
+# Whether to use syslog
+
+use_syslog = True
+
+tag = ""
+pid = 0
+
+def init(ident = "rpki", flags = syslog.LOG_PID, facility = syslog.LOG_DAEMON):
+  """
+  Initialize logging system.
+  """
+
+  if use_syslog:
+    return syslog.openlog(ident, flags, facility)
+  else:
+    global tag, pid
+    tag = ident
+    pid = os.getpid()
+
+def set_trace(enable):
+  """
+  Enable or disable call tracing.
+  """
+
+  global enable_trace
+  enable_trace = enable
+
+class logger(object):
+  """
+  Closure for logging.
+  """
+
+  def __init__(self, priority):
+    self.priority = priority
+
+  def __call__(self, message):
+    if use_syslog:
+      return syslog.syslog(self.priority, message)
+    else:
+      sys.stderr.write("%s %s[%d]: %s\n" % (time.strftime("%F %T"), tag, pid, message))
+
+error = logger(syslog.LOG_ERR)
+warn  = logger(syslog.LOG_WARNING)
+note  = logger(syslog.LOG_NOTICE)
+info  = logger(syslog.LOG_INFO)
+debug = logger(syslog.LOG_DEBUG)
+
+def trace():
+  """
+  Execution trace -- where are we now, and whence came we here?
+  """
+
+  if enable_trace:
+    bt = tb.extract_stack(limit = 3)
+    return debug("[%s() at %s:%d from %s:%d]" % (bt[1][2], bt[1][0], bt[1][1], bt[0][0], bt[0][1]))
+
+def traceback():
+  """
+  Consolidated backtrace facility with a bit of extra info.
+  """
+
+  assert sys.exc_info() != (None, None, None), "rpki.log.traceback() called without valid trace on stack, this is a programming error"
+  bt = tb.extract_stack(limit = 3)
+  error("Exception caught in %s() at %s:%d called from %s:%d" % (bt[1][2], bt[1][0], bt[1][1], bt[0][0], bt[0][1]))
+  bt = tb.format_exc()
+  assert bt is not None, "Apparently I'm still not using the right test for null backtrace"
+  for line in bt.splitlines():
+    warn(line)