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

bgdelivery-procs.tcl

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Total Committers: 7
Last Commit: 31 May
Commits this week: 0
Total Lines of Code (LoC): 804
Net change in LoC this week: 0

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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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    ./bgdelivery-procs.tcl
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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  2. … 2 more files in changeset.
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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    ./bgdelivery-procs.tcl
  2. … 1 more file in changeset.
Monday 09 May 2011
11:06 am

gustafn

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

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    ./bgdelivery-procs.tcl
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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    ./bgdelivery-procs.tcl
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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    ./bgdelivery-procs.tcl
Tuesday 15 Dec 2009
5:54 pm

gustafn

- fix typo

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    ./bgdelivery-procs.tcl
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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    ./bgdelivery-procs.tcl
Saturday 12 Dec 2009
7:40 pm

gustafn

- don't use "string bytelength" on binary datga

- match match-patterns more precise

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    ./bgdelivery-procs.tcl
1:00 pm

gustafn

- bgdelivery: added "Class FileSpooler" to ease to add common behavior

for "fileSpooler" and "h264Spooler"

- bgdelivery: provide same "end-delivery" interface for h264Spooler

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    ./bgdelivery-procs.tcl
Friday 11 Dec 2009
12:28 pm

gustafn

- bgdelivery: added a pseudo streaming spooler for h264

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Tuesday 27 Oct 2009
11:50 pm

gustafn

- make sure to use "connection: close" for requests delivered via bgdelivery thread

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Friday 10 Apr 2009
2:04 pm

gustafn

- add global variable reference

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    ./bgdelivery-procs.tcl
9:42 am

gustafn

- make cleanup more robust

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    ./bgdelivery-procs.tcl
9:28 am

gustafn

- fixing typos, seems if i need a vacation

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    ./bgdelivery-procs.tcl
9:09 am

gustafn

adding cleanup handler for bgdelivery

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Monday 08 Dec 2008
4:23 pm

gustafn

- add client_data to ad_returnfile_background and supporting functions

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Sunday 07 Dec 2008
1:40 pm

gustafn

- add object fileSpooler to ease customization

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    ./bgdelivery-procs.tcl
Wednesday 26 Nov 2008
10:27 am

gustafn

- handle special case, were file size == 0 bytes; fcopy behaves differently in this case

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    ./bgdelivery-procs.tcl
Friday 21 Nov 2008
2:26 pm

gustafn

-update to version 0.100, compliant with xowiki 0.105

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Tuesday 04 Nov 2008
11:04 pm

gustafn

add debug info in case, channel::transfer fails

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    ./bgdelivery-procs.tcl
9:11 pm

gustafn

- protect channel transfer by a mutex

- check in bg-delivery whether the driver is "nssock"; otherwise, fall back to classical ns_returnfile

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    ./bgdelivery-procs.tcl
Wednesday 27 Aug 2008
12:45 pm

gustafn

- fix encoding in bg delivery spooler

- make code less verbose

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Friday 29 Feb 2008
11:43 pm

gustafn

fix cvs conflict

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Monday 11 Feb 2008
3:24 am

gustafn

fix escaped file

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    ./bgdelivery-procs.tcl
3:20 am

gustafn

fix for references clause

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Thursday 20 Sep 2007
1:57 pm

gustafn

cluster support for cr-cache and chat

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    ./bgdelivery-procs.tcl
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