Mercurial > hg
annotate mercurial/error.py @ 8590:59acb9c7d90f
url: use CONNECT for HTTPS connections through HTTP proxy (issue967)
urllib2 and httplib does not support using CONNECT proxy requests, but
only regular requests over the proxy. This does not work with HTTPS
requests as they typically require that the client issues a CONNECT to
the proxy to give a direct connection to the remote HTTPS server.
This is solved by duplicating some of the httplib functionality and
tying it together with the keepalive library such that a HTTPS
connection that need to be proxied can be proxied by letting a
connection be established to the proxy server and then subsequently
performing the normal request to the specified server through the
proxy server.
As it stands, the code also purports to support HTTPS proxies, i.e.
proxies that you connect to using SSL. These are extremely rare and
nothing is done to ensure that CONNECT requests can be made to these
as that would require multiple SSL handshakes. This use case is also
not supported by most other contemporary web tools like curl and
Firefox3.
author | Henrik Stuart <hg@hstuart.dk> |
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date | Fri, 22 May 2009 08:56:43 +0200 |
parents | 0a9542703300 |
children | 1444a42f6052 |
rev | line source |
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1 # error.py - Mercurial exceptions |
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2 # |
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3 # Copyright 2005-2008 Matt Mackall <mpm@selenic.com> |
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4 # |
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5 # This software may be used and distributed according to the terms of the |
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6 # GNU General Public License version 2, incorporated herein by reference. |
7633 | 7 |
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8 """Mercurial exceptions. |
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9 |
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10 This allows us to catch exceptions at higher levels without forcing |
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11 imports. |
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12 """ |
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13 |
7633 | 14 # Do not import anything here, please |
15 | |
16 class RevlogError(Exception): | |
17 pass | |
18 | |
19 class LookupError(RevlogError, KeyError): | |
20 def __init__(self, name, index, message): | |
21 self.name = name | |
22 if isinstance(name, str) and len(name) == 20: | |
23 from node import short | |
24 name = short(name) | |
25 RevlogError.__init__(self, '%s@%s: %s' % (index, name, message)) | |
26 | |
27 def __str__(self): | |
28 return RevlogError.__str__(self) | |
7636 | 29 |
30 class ParseError(Exception): | |
31 """Exception raised on errors in parsing the command line.""" | |
7637 | 32 |
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33 class ConfigError(Exception): |
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34 'Exception raised when parsing config files' |
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35 |
7637 | 36 class RepoError(Exception): |
37 pass | |
38 | |
39 class CapabilityError(RepoError): | |
40 pass | |
7640 | 41 |
42 class LockError(IOError): | |
43 def __init__(self, errno, strerror, filename, desc): | |
44 IOError.__init__(self, errno, strerror, filename) | |
45 self.desc = desc | |
46 | |
47 class LockHeld(LockError): | |
48 def __init__(self, errno, filename, desc, locker): | |
49 LockError.__init__(self, errno, 'Lock held', filename, desc) | |
50 self.locker = locker | |
51 | |
52 class LockUnavailable(LockError): | |
53 pass | |
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54 |
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55 class ResponseError(Exception): |
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56 """Raised to print an error with part of output and exit.""" |
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57 |
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58 class UnknownCommand(Exception): |
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59 """Exception raised if command is not in the command table.""" |
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60 |
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61 class AmbiguousCommand(Exception): |
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62 """Exception raised if command shortcut matches more than one command.""" |
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63 |
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64 # derived from KeyboardInterrupt to simplify some breakout code |
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65 class SignalInterrupt(KeyboardInterrupt): |
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66 """Exception raised on SIGTERM and SIGHUP.""" |
7646 | 67 |
68 class SignatureError(Exception): | |
69 pass | |
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70 |
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71 class Abort(Exception): |
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72 """Raised if a command needs to print an error and exit.""" |