OpenACS / openacs-4 / packages / xotcl-core / tcl

bgdelivery-procs.tcl

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Total Committers: 7
Last Commit: 08 May
Commits this week: 0
Total Lines of Code (LoC): 804
Net change in LoC this week: 0

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Thursday 29 Jan 2015
10:24 am

gustafn

- improve wrning message

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Monday 27 Oct 2014
5:38 pm

victorg

Merging back to HEAD branch oacs-5-8 (using tag vg-merge-oacs-5-8-from-20141027).

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Tuesday 01 Apr 2014
8:37 pm

gustafn

- The C-library function tmpnam() is deprecated since a while. Therefore naviserver has deprecated ns_tmpnam as well.

Therefore we introduce a new function "ad_tmpnam" which requires just a minimal change and uses ns_mktemp.

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Friday 14 Feb 2014
7:20 pm

gustafn

- change tabs into spaces

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Monday 27 Jan 2014
10:59 am

gustafn

- treat invalid byte ranges as described in rfc2616-sec14

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Tuesday 15 Oct 2013
9:01 am

gustafn

- make it easier to track invalid provided ranges

- use "lassign" instead of multiple "lindex" instructions

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Sunday 13 Oct 2013
8:13 pm

gustafn

- normalize string expressions

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Monday 30 Sep 2013
1:37 pm

gustafn

- don't abbreviate subcommands

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Sunday 29 Sep 2013
10:08 pm

gustafn

- use tcl 8.5 extended index format for "string range"

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Tuesday 24 Sep 2013
11:13 am

gustafn

- fix cancellation of duplicate requests for same-named files (fix provided by Franz Penz and Andreas Mulley)

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Tuesday 17 Sep 2013
7:49 pm

gustafn

- use lassign instead of "foreach ... break" idiom

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Thursday 21 Mar 2013
10:58 pm

gustafn

- use new naviserver command ns_driversection if available to determine writer spooling

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Thursday 21 Feb 2013
1:31 pm

gustafn

- bgdelivery-procs:

* refactor subscriber logic to avoid code duplication

* implement sweeper to check for stale connections

- chat-procs:

* call bgdelivery sweeper from chat sweeper

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Sunday 17 Feb 2013
12:48 pm

gustafn

- Added the changes mostly provided by Antonio Pisano to update the comet behavior for current browsers, which provide nowadays often more complete HTTP stacks.

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Thursday 14 Feb 2013
7:28 pm

gustafn

- fix parametrization of ns_writer for range requests

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Tuesday 29 Jan 2013
8:39 am

gustafn

- changed comet output to chunked encoding

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Thursday 06 Dec 2012
1:03 pm

gustafn

use lassign instead of lset

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    ./bgdelivery-procs.tcl
12:55 pm

gustafn

make sure to configure the channel to nonblocking before we close. A close to a blocking channel can block and can therefore block all spools and therefore potentially the full server.

Background: Tcl's fcopy sets a channel to non-blocking. In earlier Tcl versions, the channel was left in the non-blocking state, also after fcopy terminates (e.g. in error cases).

Newer Tcl versions seem to reestablish the earlier state, so we have to care now for the problem in bgdelivery.

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Saturday 03 Nov 2012
3:45 pm

gustafn

- use naviserver writer thread if configured

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Friday 02 Nov 2012
12:40 pm

gustafn

Avoid potential attacks via too many open files.

Background: Tcl uses still select() for event processing, which has a pretty much hardcoded limit of max 1024 files (one has to recompile Tcl, libc, and maybe the kernel). With bgdelivery it is possible to deliver more than 1000 files simultaneously, but Tcl panics, when the number of descriptors is too large. We experienced the problem in a sitation, where the 1000+ requests were produced from a incorrect browser behavior (e.g. iPad issues a series of range requests rapidly without closing the last requests); bgdelivery allows now just one spooling request for a file from a user at one time.

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12:06 am

gustafn

- define global variable ::xo::naviserver for quick test, whether we are running under NaviServer

- fix ns_ur[en|de]code of "--" and "-charset" etc. This fixes the behavior of NaviServer, which has a "--" option terminator

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Thursday 22 Mar 2012
11:42 am

gustafn

- add general backslash escape function ::xo::backslash_escape

- make sure to quote content disposition properly

- bump version number to 0.124

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Wednesday 21 Sep 2011
9:51 am

gustafn

- added async disk writer class

- bumped version number to 0.122

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Monday 09 May 2011
11:06 am

gustafn

- for delivering 0-byte files, set the length explicitely

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Thursday 17 Mar 2011
9:21 am

gustafn

- bgdelivery: added limited support for range requests (single range) as used by various HTML5 audio/video implementations

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Monday 31 May 2010
6:36 pm

victorg

Removing previously added streamSpooler object. Used only in our local code.

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    ./bgdelivery-procs.tcl
12:50 pm

victorg

Adding streamSpooler object. Which is useful for forwarding, in the background, a stream of data to a connection channel.

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Saturday 22 May 2010
11:04 am

gustafn

- added option "-delete true/false" to ad_proc returnfile to delete

optionally files after the delivery automatically

- added option "-content_disposition filename" to provide a filename

as content-disposition (disposition type: attachment)

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Tuesday 15 Dec 2009
5:54 pm

gustafn

- fix typo

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Monday 14 Dec 2009
10:36 am

gustafn

- write HTTP headers for h264 streams in spooling thread to avoid

double executions of costly h264open

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