[X2go-Commits] python-x2go.git - master (branch) updated: 0.2.1.1-43-ga93d4f2
X2Go dev team
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Tue Feb 12 06:37:11 CET 2013
The branch, master has been updated
via a93d4f2646aa310295eacaf4f7c6b1bb2566c19e (commit)
via 79f1296a15b362e57161632519c796ea43994104 (commit)
from 5e85771f2aeb7d3095a72409b783e96934c788ef (commit)
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- Log -----------------------------------------------------------------
commit a93d4f2646aa310295eacaf4f7c6b1bb2566c19e
Author: Mike Gabriel <mike.gabriel at das-netzwerkteam.de>
Date: Tue Feb 12 06:33:27 2013 +0100
Add low latency support for link types 'modem' and 'isdn'. Selecting either link quality will double nearly all connection timeout values. (Fixes: #53).
commit 79f1296a15b362e57161632519c796ea43994104
Author: Mike Gabriel <mike.gabriel at das-netzwerkteam.de>
Date: Tue Feb 12 00:43:14 2013 +0100
add fixure for X2Go BTS issue #23 (2)
-----------------------------------------------------------------------
Summary of changes:
debian/changelog | 10 +++++++---
x2go/backends/control/_stdout.py | 15 +++++++++++++++
x2go/session.py | 3 +++
3 files changed, 25 insertions(+), 3 deletions(-)
The diff of changes is:
diff --git a/debian/changelog b/debian/changelog
index 2075955..b42d0b0 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -13,10 +13,11 @@ python-x2go (0.4.0.0-0~x2go1) UNRELEASED; urgency=low
* New upstream version (0.4.0.0):
- Add session profile option ,,display'' to default session profile options.
- Catch any kind of exception when writing session profile files and return
- True or False in cases where I/O errors occur. (Fixes: #23).
+ True or False in cases where I/O errors occur.
- Avoid the known_hosts file being flushed with localhost:[<someport>]
entries. Store host keys of SSH-proxied hosts under the [<address>]:<port>
- the system has _behind_ the SSH proxy gateway. (Hopefully fixes: #18).
+ the system has _behind_ the SSH proxy gateway. (Hopefully fixes: #18,
+ partially fixes: #53).
- Add session profile option: uniquehostkeyaliases. Allow the
(by-design-unique) X2Go session profile ID to be a representative for
<hostname>:<port>. Update session profile IDs on hostname changes.
@@ -31,6 +32,9 @@ python-x2go (0.4.0.0-0~x2go1) UNRELEASED; urgency=low
- Sort X2Go feature list, add force option for X2GoClient queries of server
features and server components. Add alias get_server_components (for
get_server_versions).
+ - Add low latency support for link types 'modem' and 'isdn'. Selecting
+ either link quality will double nearly all connection timeout values.
+ (Fixes: #53).
-- Mike Gabriel <mike.gabriel at das-netzwerkteam.de> Thu, 20 Dec 2012 08:58:44 +0100
@@ -48,7 +52,7 @@ python-x2go (0.2.1.1-0~x2go1) unstable; urgency=low
under the same user ID, we have to strictly differentiate between
running/suspend sessions associated to the several connected session
profiles.
- - Make connection disruptures more robust.
+ - Make connection disruptures more robust. (Fixes: #23).
-- Mike Gabriel <mike.gabriel at das-netzwerkteam.de> Tue, 18 Dec 2012 12:36:34 +0100
diff --git a/x2go/backends/control/_stdout.py b/x2go/backends/control/_stdout.py
index fdf8449..0050147 100644
--- a/x2go/backends/control/_stdout.py
+++ b/x2go/backends/control/_stdout.py
@@ -128,6 +128,7 @@ class X2GoControlSessionSTDOUT(paramiko.SSHClient):
ssh_rootdir=os.path.join(defaults.LOCAL_HOME, defaults.X2GO_SSH_ROOTDIR),
logger=None, loglevel=log.loglevel_DEFAULT,
published_applications_no_submenus=0,
+ low_latency=False,
**kwargs):
"""\
Initialize an X2Go control session. For each connected session profile there will be one SSH-based
@@ -170,6 +171,8 @@ class X2GoControlSessionSTDOUT(paramiko.SSHClient):
@param loglevel: if no L{X2GoLogger} object has been supplied a new one will be
constructed with the given loglevel
@type loglevel: C{int}
+ @param low_latency: set this boolean switch for weak connections, it will double all timeout values.
+ @type low_latency: C{bool}
@param kwargs: catch any non-defined parameters in C{kwargs}
@type kwargs: C{dict}
@@ -223,6 +226,8 @@ class X2GoControlSessionSTDOUT(paramiko.SSHClient):
self.session_died = False
+ self.low_latency = low_latency
+
self.published_applications_no_submenus = published_applications_no_submenus
self._already_querying_published_applications = threading.Lock()
@@ -394,6 +399,7 @@ class X2GoControlSessionSTDOUT(paramiko.SSHClient):
ssh_transport = self.get_transport()
if ssh_transport and ssh_transport.is_authenticated():
+ if self.low_latency: timeout = timeout * 2
timer = gevent.Timeout(timeout)
timer.start()
try:
@@ -837,6 +843,9 @@ class X2GoControlSessionSTDOUT(paramiko.SSHClient):
if forward_sshagent is not None:
self.forward_sshagent = forward_sshagent
+ if timeout and self.low_latency:
+ timeout = timeout * 2
+
if key_filename or pkey or look_for_keys or allow_agent or (password and force_password_auth):
try:
if password and force_password_auth:
@@ -1403,6 +1412,9 @@ class X2GoControlSessionSTDOUT(paramiko.SSHClient):
# this _success loop will catch errors in case the x2golistsessions output is corrupt
# this should not be needed and is a workaround for the current X2Go server implementation
+ if self.low_latency:
+ maxwait = maxwait * 2
+
timeout = gevent.Timeout(maxwait)
timeout.start()
try:
@@ -1445,6 +1457,9 @@ class X2GoControlSessionSTDOUT(paramiko.SSHClient):
else:
+ if self.low_latency:
+ maxwait = maxwait * 2
+
# this _success loop will catch errors in case the x2golistmounts output is corrupt
timeout = gevent.Timeout(maxwait)
diff --git a/x2go/session.py b/x2go/session.py
index 2b70432..7a66bbd 100644
--- a/x2go/session.py
+++ b/x2go/session.py
@@ -591,6 +591,8 @@ class X2GoSession(object):
Initialize a new control session (C{X2GoControlSession*}).
"""
+ low_latency = self.terminal_params.has_key('link') and self.terminal_params['link'].lower() in ('modem', 'isdn')
+
if self.control_session is None:
self.logger('initializing X2GoControlSession', loglevel=log.loglevel_DEBUG)
self.control_session = self.control_backend(profile_name=self.profile_name,
@@ -604,6 +606,7 @@ class X2GoSession(object):
client_rootdir=self.client_rootdir,
sessions_rootdir=self.sessions_rootdir,
ssh_rootdir=self.ssh_rootdir,
+ low_latency=low_latency,
logger=self.logger)
__init_control_session = init_control_session
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