[tor-commits] [stem/master] Add exception classes to test.network module

[atagar@xxxxxxxxxxxxxx]

commit bf6651aa0121e51e938e87608a4df69c0e80c917
Author: Sean Robinson <seankrobinson@xxxxxxxxx>
Date:   Mon Dec 17 19:20:23 2012 -0700

    Add exception classes to test.network module
    
    Signed-off-by: Sean Robinson <seankrobinson@xxxxxxxxx>
---
 test/network.py |   36 ++++++++++++++++++++++++++++++++++++
 1 files changed, 36 insertions(+), 0 deletions(-)

diff --git a/test/network.py b/test/network.py
index 1c9be61..72bfca7 100644
--- a/test/network.py
+++ b/test/network.py
@@ -1,5 +1,41 @@
 """
 Helper functions and classes to support tests which need to connect through
 the tor network.
+
+::
+
+  ProxyError - Base error for proxy issues.
+    +- SocksError - Reports problems returned by the SOCKS proxy.
 """
 
+class ProxyError(Exception):
+  """ Base error for proxy issues. """
+
+class SocksError(ProxyError):
+  """
+  Exception raised for any problems returned by the SOCKS proxy.
+  
+  :var int code: error code returned by the SOCKS proxy
+  """
+  
+  # Error messages copied from http://en.wikipedia.org/wiki/SOCKS,
+  # retrieved 2012-12-15 17:09:21.
+  _ERROR_MESSAGE = {
+    0x01: "general failure",
+    0x02: "connection not allowed by ruleset",
+    0x03: "network unreachable",
+    0x04: "host unreachable",
+    0x05: "connection refused by destination host",
+    0x06: "TTL expired",
+    0x07: "command not supported / protocol error",
+    0x08: "address type not supported",
+  }
+  
+  def __init__(self, code):
+    self.code = code
+  
+  def __str__(self):
+    code = 0x01
+    if self.code in self._ERROR_MESSAGE:
+      code = self.code
+    return "[%s] %s" % (code, self._ERROR_MESSAGE[code])



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