added factotum support for python and hg

sys/lib/python/factotum.py

@@ -0,0 +1,57 @@
+'''factotum for py'''
+
+import subprocess
+
+class FactotumError(Exception):
+	pass
+
+class PhaseError(Exception):
+	pass
+
+class NeedkeyError(Exception):
+	pass
+
+class Factotum:
+	def start(self, **args):
+		self.f = open('/mnt/factotum/rpc', 'r+', 0)
+		msg = 'start'
+		for k, v in args.iteritems():
+			msg += ' ' + k + '=\'' + v + '\''
+		self.f.write(msg)
+		ret = self.f.read(4096)
+		if ret == "ok": return
+		if ret[:5] == "error": raise FactotumError(ret[6:])
+		raise FactotumError("unexpected " + ret)
+	def needkey(self, string):
+		subprocess.call(['/bin/auth/factotum', '-g', string])
+	def read(self):
+		while True:
+			self.f.write('read')
+			ret = self.f.read(4096)
+			if ret[:7] != "needkey": break
+			self.needkey(ret[8:])
+		if ret == "ok": return ""
+		if ret[:3] == "ok ": return ret[3:]
+		if ret[:5] == "error": raise FactotumError(ret[6:])
+		if ret[:5] == "phase": raise PhaseError(ret[6:])
+		raise FactotumError("unexpected " + ret)
+	def write(self, data):
+		while True:
+			self.f.write('write ' + data)
+			ret = self.f.read(4096)
+			if ret[:7] != "needkey": break
+			self.needkey(ret[8:])
+		if ret == "ok": return 0
+		if ret[:3] == "toosmall ": return int(ret[4:])
+		if ret[:5] == "error": raise FactotumError(ret[6:])
+		if ret[:5] == "phase": raise PhaseError(ret[6:])
+		raise FactotumError("unexpected " + ret)
+	def close(self):
+		self.f.close()
+	def delkey(self, **args):
+		f = open('/mnt/factotum/ctl', 'w', 0)
+		msg = 'delkey'
+		for k, v in args.iteritems():
+			msg += ' ' + k + '=\'' + v + '\''
+		f.write(msg)
+		f.close()