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  • src/sbbs3/websrvr.c

    From Stephen Hurd@VERT to Git commit to sbbs/master on Mon Nov 16 23:25:24 2020
    https://gitlab.synchro.net/sbbs/sbbs/-/commit/c399ca73f145f7e8dc625ec6
    Modified Files:
    src/sbbs3/websrvr.c
    Log Message:
    Some CGI programs know they're not running from a console because
    QUERY_STRING is defined (even if blank).

    Always define it.

    ---
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  • From Rob Swindell@VERT to Git commit to sbbs/master on Mon Nov 16 23:39:04 2020
    https://gitlab.synchro.net/sbbs/sbbs/-/commit/2c66387d8a91bc26d226430a
    Modified Files:
    src/sbbs3/websrvr.c
    Log Message:
    Merge remote-tracking branch 'origin/master'

    ---
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  • From Deucе@VERT to Git commit to main/sbbs/master on Wed Feb 17 10:55:55 2021
    https://gitlab.synchro.net/main/sbbs/-/commit/22c6721d6f926ba5fce85a54
    Modified Files:
    src/sbbs3/websrvr.c
    Log Message:
    Remove unused assignment.

    No need to get time() here since it's never checked.

    Resolves CID 174292

    ---
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  • From Deucе@VERT to Git commit to main/sbbs/master on Wed Feb 17 10:59:17 2021
    https://gitlab.synchro.net/main/sbbs/-/commit/6623cff0e3516937e38ae76a
    Modified Files:
    src/sbbs3/websrvr.c
    Log Message:
    Always return 403 to requests for access.ars or webctrl.ini

    Previously, 403 was only returned if they existed, and 404 if they
    didn't.

    ---
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  • From Deucе@VERT to Git commit to main/sbbs/master on Fri Feb 19 22:31:58 2021
    https://gitlab.synchro.net/main/sbbs/-/commit/5d3de1eea3288155bc7a630e
    Modified Files:
    src/sbbs3/websrvr.c
    Log Message:
    For the cases we'll send a Content-Length of zero, do not send content.

    Should fix #223
    Introduced in d56ba01f which likely fixed some stuff on the wiki.

    ---
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  • From Deucе@VERT to Git commit to main/sbbs/master on Fri Feb 19 23:03:13 2021
    https://gitlab.synchro.net/main/sbbs/-/commit/bc5bfa5f6f9fb7208ed7bbe1
    Modified Files:
    src/sbbs3/websrvr.c
    Log Message:
    We still want the zero-length entity, just not any content.

    Fixes last commit, which could cause infinite hangs on certain requests.

    ---
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  • From Rob Swindell@VERT to Git commit to main/sbbs/master on Fri Mar 19 21:25:53 2021
    https://gitlab.synchro.net/main/sbbs/-/commit/b881935a0f28b65f66d6218c
    Modified Files:
    src/sbbs3/websrvr.c
    Log Message:
    Track the active client "highwater mark" (highest number of concurrent clients)

    Could be useful for knowing if you need to increase MaxClients for typical usage.

    ---
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  • From Deucе@VERT to Git commit to main/sbbs/master on Mon Mar 22 22:37:38 2021
    https://gitlab.synchro.net/main/sbbs/-/commit/9048b3d231b7ceeb823c2220
    Modified Files:
    src/sbbs3/websrvr.c
    Log Message:
    post_to_file() shouldn't close the file since it didn't open it.

    ---
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  • From Deucе@VERT to Git commit to main/sbbs/master on Tue Mar 30 21:12:56 2021
    https://gitlab.synchro.net/main/sbbs/-/commit/e2f3407c8cd1379184da9668
    Modified Files:
    src/sbbs3/websrvr.c
    Log Message:
    Remove some unused variables.

    ---
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  • From Rob Swindell@VERT to Git commit to main/sbbs/master on Sun Apr 4 13:15:46 2021
    https://gitlab.synchro.net/main/sbbs/-/commit/03b7b2f9443db9fa02989aec
    Modified Files:
    src/sbbs3/websrvr.c
    Log Message:
    Fix socket descriptor leak in fastcgi_connect()

    Found by Coverity-scan (CID 330051)

    @Deuce should review this.

    ---
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  • From Rob Swindell@VERT to Git commit to main/sbbs/master on Sun Apr 4 13:29:04 2021
    https://gitlab.synchro.net/main/sbbs/-/commit/22f130cad457cd21747dd6bc
    Modified Files:
    src/sbbs3/websrvr.c
    Log Message:
    Fix resource leak in ssjs_send_headers()

    IdArray returned by JS_Enumerate() was never freed.

    Caught by Coverity-scan, CID 319627.

    ---
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  • From Rob Swindell@VERT to Git commit to main/sbbs/master on Sat Jun 5 00:42:05 2021
    https://gitlab.synchro.net/main/sbbs/-/commit/9f7894575eed369cfd56ad40
    Modified Files:
    src/sbbs3/websrvr.c
    Log Message:
    Remove incorrect and unnecessary comment.

    ---
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  • From Rob Swindell@VERT to Git commit to main/sbbs/master on Sat Jun 5 00:42:05 2021
    https://gitlab.synchro.net/main/sbbs/-/commit/a487e0c681d380e01a76deeb
    Modified Files:
    src/sbbs3/websrvr.c
    Log Message:
    Don't allow colons in web-requested path names on Windows

    This fixes issue #269 (NTFS Alternate Data Stream vulnerability) and other potential pathname issues on Windows involving colons.

    There are other illegal filename characters on Windows (e.g. <>|"?*), but filenames with these characters aren't expected to pass the later stat() test, so should fail with a 404 error.

    ---
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  • From Rob Swindell@VERT to Git commit to main/sbbs/master on Thu Jul 1 13:41:24 2021
    https://gitlab.synchro.net/main/sbbs/-/commit/f38adc13f4b5169a0d59cbce
    Modified Files:
    src/sbbs3/websrvr.c
    Log Message:
    Fix NULL pointer dereference in read_post_data()

    What took down cvs/sbbs yesterday:
    Program terminated with signal SIGSEGV, Segmentation fault.
    6203 session->req.post_data[session->req.post_len]=0; [Current thread is 1 (Thread 0x7f2b989ff700 (LWP 17031))]
    (gdb) print post_len
    No symbol "post_len" in current context.
    (gdb) print session->req.post_len
    $1 = 0
    (gdb) print session->req.post_data
    $2 = 0x0

    ---
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  • From Rob Swindell (on Windows 11)@VERT to Git commit to main/sbbs/master on Thu Jul 11 17:32:21 2024
    https://gitlab.synchro.net/main/sbbs/-/commit/75bb2cf6633fb51f56a23e53
    Modified Files:
    src/sbbs3/websrvr.c
    Log Message:
    Publish client highwater mark (max concurrent client stat) to MQTT
  • From Rob Swindell (on Windows 11)@VERT to Git commit to main/sbbs/master on Thu Jul 11 17:32:21 2024
    https://gitlab.synchro.net/main/sbbs/-/commit/75bb2cf6633fb51f56a23e53
    Modified Files:
    src/sbbs3/websrvr.c
    Log Message:
    Publish client highwater mark (max concurrent client stat) to MQTT

    ---
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  • From Rob Swindell (on Windows 11)@VERT to Git commit to main/sbbs/master on Mon Nov 4 17:37:33 2024
    https://gitlab.synchro.net/main/sbbs/-/commit/7fb6c7b4d8ec2150eefe55df
    Modified Files:
    src/sbbs3/websrvr.c
    Log Message:
    Add missing argument to new error log message upone putuserdat() failure

    Fixes a couple CIDs and a GCC warning

    ---
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  • From Deucе@VERT to Git commit to main/sbbs/master on Sat Nov 30 19:42:47 2024
    https://gitlab.synchro.net/main/sbbs/-/commit/d98359abefd58e43bb0e3115
    Modified Files:
    src/sbbs3/websrvr.c
    Log Message:
    Move max concurrent connections check into http_session_thread()

    We can't send a 4xx error (ie: client did something wrong) in
    plaintext on a TLS connection.

    Untested beyond a basic compile check.

    ---
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  • From Deucе@VERT to Git commit to main/sbbs/master on Sat Nov 30 19:44:29 2024
    https://gitlab.synchro.net/main/sbbs/-/commit/913092779871fdf4f4fc3e56
    Modified Files:
    src/sbbs3/websrvr.c
    Log Message:
    Since this is after client_on() is called now, use > not >=

    ---
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  • From Rob Swindell (on Debian Linux)@VERT to Git commit to main/sbbs/master on Sat Nov 30 23:47:11 2024
    https://gitlab.synchro.net/main/sbbs/-/commit/91125d1b721525a9c7720d0c
    Modified Files:
    src/sbbs3/websrvr.c
    Log Message:
    Track and report the concurrent connections per client highwater mark

    It's possible now for clients to easily exceed the configured max concurrent connections limit, even though they just get an error 429 page. Let's at least track and log when a new highwater mark is reached.

    ---
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  • From Rob Swindell (on Windows 11)@VERT to Git commit to main/sbbs/master on Tue Dec 10 16:27:55 2024
    https://gitlab.synchro.net/main/sbbs/-/commit/ce7d83eeda506e5f366fe31d
    Modified Files:
    src/sbbs3/websrvr.c
    Log Message:
    Add/use errprintf() to reduce severity of repeated error messages

    Part of solution for issue #619 (for the web server)

    ---
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  • From Rob Swindell (on Windows 11)@VERT to Git commit to main/sbbs/master on Sat Dec 14 13:08:11 2024
    https://gitlab.synchro.net/main/sbbs/-/commit/f2c891789734a9e783a1ac14
    Modified Files:
    src/sbbs3/websrvr.c
    Log Message:
    Lower severity of repeated errors in js_ReportError()

    This needed a custom solution (not errprintf) since the filename is passed-in is likely from dynamically allocated memory, so a pointer comparison isn't enough - and we don't get the function name.

    ---
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  • From Rob Swindell (on Debian Linux)@VERT to Git commit to main/sbbs/master on Sat Dec 14 13:09:32 2024
    https://gitlab.synchro.net/main/sbbs/-/commit/bbf9d5eac22ce15077a4599f
    Modified Files:
    src/sbbs3/websrvr.c
    Log Message:
    Use errprintf() instead of lprintf() for one more log message

    ---
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  • From Rob Swindell (on Debian Linux)@VERT to Git commit to main/sbbs/master on Sun Dec 15 14:51:22 2024
    https://gitlab.synchro.net/main/sbbs/-/commit/a4ac0be63a49cc98f4883bef
    Modified Files:
    src/sbbs3/websrvr.c
    Log Message:
    Better NULL ptr checking in js_ErrorReporter, CID 516068

    ---
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  • From Rob Swindell (on Windows 11)@VERT to Git commit to main/sbbs/master on Mon Dec 16 18:24:31 2024
    https://gitlab.synchro.net/main/sbbs/-/commit/630b22ada39c50f871597b00
    Modified Files:
    src/sbbs3/websrvr.c
    Log Message:
    Whitespace change only

    ---
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  • From Rob Swindell (on Windows 11)@VERT to Git commit to main/sbbs/master on Mon Dec 30 14:58:21 2024
    https://gitlab.synchro.net/main/sbbs/-/commit/91b5a37ca1155f71f28c6eda
    Modified Files:
    src/sbbs3/websrvr.c
    Log Message:
    Check return value of JS_NewStringCopyZ (for NULL)

    Kind of a shot in the dark here: Max (WESTLINE) is reporting HEAP CORRUPTION debug assertion in websrvr.dll. In the 2 instances reported, a long (336
    char) JSON "query value" was logged by apparent spam-bot trying to create a
    a new user account ("send-me-free-stuff" is one of the JSON properties).

    JS_NewStringCopyZ() can return NULL in a low memory situation, though I don't know that explains possible heap corruption.

    ---
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  • From Rob Swindell (on Windows 11)@VERT to Git commit to main/sbbs/master on Wed Jan 8 18:56:14 2025
    https://gitlab.synchro.net/main/sbbs/-/commit/196ad130ca1a7fbecc73807b
    Modified Files:
    src/sbbs3/websrvr.c
    Log Message:
    Use errprintf for FastCGI related error log messages

    I received 6853 duplicate FastCGI error emails today (sent in a 2 minute
    time span). I wish I already had this in place. :-(

    ---
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  • From Rob Swindell (on Windows 11)@VERT to Git commit to main/sbbs/master on Wed Jan 8 19:15:04 2025
    https://gitlab.synchro.net/main/sbbs/-/commit/0afbc6a9ae33dc715e0125bc
    Modified Files:
    src/sbbs3/websrvr.c
    Log Message:
    Fix NULL dereference when there are no directory vshortcuts defined

    As reported by Accession in #synchronet at irc.synchro.net

    ---
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  • From Rob Swindell (on Debian Linux)@VERT to Git commit to main/sbbs/master on Sat Jan 11 16:14:52 2025
    https://gitlab.synchro.net/main/sbbs/-/commit/3618930a6e23a5f3b5709a71
    Modified Files:
    src/sbbs3/websrvr.c
    Log Message:
    Resolve GCC warning enumeration value ‘PARSED_VPATH_x’ not handled in switch

    ---
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  • From Rob Swindell (on Windows 11)@VERT to Git commit to main/sbbs/master on Sun Jan 12 12:48:03 2025
    https://gitlab.synchro.net/main/sbbs/-/commit/0c6913fbd626457fb401aae8
    Modified Files:
    src/sbbs3/websrvr.c
    Log Message:
    Another use of errprintf() to help de-dupe error logs/alerts

    ---
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  • From Rob Swindell (on Windows 11)@VERT to Git commit to main/sbbs/master on Fri Jan 31 18:15:20 2025
    https://gitlab.synchro.net/main/sbbs/-/commit/48ac38bbbed74e4e98830c36
    Modified Files:
    src/sbbs3/websrvr.c
    Log Message:
    More use of errprintf() to reduce duplicate error log messages

    ---
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  • From Rob Swindell (on Debian Linux)@VERT to Git commit to main/sbbs/master on Wed Jun 4 21:41:25 2025
    https://gitlab.synchro.net/main/sbbs/-/commit/adf899cdeb60600fed167324
    Modified Files:
    src/sbbs3/websrvr.c
    Log Message:
    Don't try to send 503 error for TLS connections that exceed maximum

    since this doens't work and just generates/logs an error every time.

    And for non-TLS connections, if the 503 send fails, just log it as a warning.

    ---
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  • From Rob Swindell (on Windows 11)@VERT to Git commit to main/sbbs/master on Tue Jun 10 23:11:08 2025
    https://gitlab.synchro.net/main/sbbs/-/commit/8fe9b03cc155aee581fabce2
    Modified Files:
    src/sbbs3/websrvr.c
    Log Message:
    Log output improvements

    - include client protocol (HTTP or HTTPS) and IP address in more log messages
    - include some more detail (e.g. send byte count) in "ERROR sending" message
    - lower severity of "Executing FastCGI" log message from Info to Debug

    ---
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  • From Rob Swindell (on Debian Linux)@VERT to Git commit to main/sbbs/master on Wed Jun 11 12:09:13 2025
    https://gitlab.synchro.net/main/sbbs/-/commit/38fde64dab9f2684f33ca3a6
    Modified Files:
    src/sbbs3/websrvr.c
    Log Message:
    Fix max concurrent connections limit

    broken in commit d98359abefd58e4

    It'd send a 429 error, but keep accepting and processing client
    requests, thus not really limiting the concurrent clients (from the same
    IP) ever.

    ---
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  • From Rob Swindell (on Debian Linux)@VERT to Git commit to main/sbbs/master on Wed Jun 11 12:44:06 2025
    https://gitlab.synchro.net/main/sbbs/-/commit/e712db6e16c730fe515f9ea6
    Modified Files:
    src/sbbs3/websrvr.c
    Log Message:
    Immediately reject non-TLS connections that exceed concurrent connections limit

    Further revert commit d98359ab at least for non-HTTPS/TLS connections, so we
    no longer needlessly create threads just to send a 429 error.

    This along with the previous commit have restored my web severs to sustainable operation after the recent huge increase in volume of requests from a huge number of unique IP addresses of *.googleusercontent.com

    ---
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  • From Deucе@VERT to Git commit to main/sbbs/master on Wed Jun 11 15:08:20 2025
    https://gitlab.synchro.net/main/sbbs/-/commit/14f0c3d11fda44d238ac4408
    Modified Files:
    src/sbbs3/websrvr.c
    Log Message:
    Fix suspicion expressed by DigitalMan in IRC

    Actually ensure the byte range starts with "bytes=".
    If anyone defines something other than bytes in the future, this
    will correctly give them an error instead of parsing everything after
    the sixth byte as a byte range.

    Also, fixes parsing of end-anchored ranges (ie: -100 and 100-)
    and the special case of 0-0 (should send one byte)

    ---
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  • From Rob Swindell (on Debian Linux)@VERT to Git commit to main/sbbs/master on Wed Jun 11 17:17:15 2025
    https://gitlab.synchro.net/main/sbbs/-/commit/80e8cdc85ac76f4763d04b15
    Modified Files:
    src/sbbs3/websrvr.c
    Log Message:
    Don't log an error if failed to sent error 429

    Who cares if we fail to send the error to the client? No one cares, that's who cares. No one. No one cares. </trump>

    ---
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  • From MRO@VERT/BBSESINF to Rob Swindell (on Debian L on Wed Jun 11 22:46:15 2025
    Re: src/sbbs3/websrvr.c
    By: Rob Swindell (on Debian Linux) to Git commit to main/sbbs/master on Wed Jun 11 2025 05:17 pm

    Who cares if we fail to send the error to the client? No one cares, that's who cares. No one. No one cares. </trump>

    dont try to be funny. it doesn't work for you.
    ---
    þ Synchronet þ ::: BBSES.info - free BBS services :::
  • From Rob Swindell (on Windows 11)@VERT to Git commit to main/sbbs/master on Thu Jun 12 21:55:34 2025
    https://gitlab.synchro.net/main/sbbs/-/commit/2c63bdb3fb7578360a3350f9
    Modified Files:
    src/sbbs3/websrvr.c
    Log Message:
    Improve logging around SSJS-generated error page/sending

    Reduce severity (to DEBUG) of "Using SSJS error page" message
    Include protocol and IP address and error code in each message.

    ---
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  • From Rob Swindell (on Debian Linux)@VERT to Git commit to main/sbbs/master on Thu Jun 12 21:57:52 2025
    https://gitlab.synchro.net/main/sbbs/-/commit/2588c5cf72d9fe4a9e825f0e
    Modified Files:
    src/sbbs3/websrvr.c
    Log Message:
    Increment local "served" count upon termination and include highwater mark

    ... in "Session thread terminated" log message

    The "served" value logged wasn't monotonically incrementing since it was incremented before session threads were created/released, making the log message out of sync with reality.

    ---
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  • From Deucе@VERT to Git commit to main/sbbs/master on Sun Jun 15 03:07:18 2025
    https://gitlab.synchro.net/main/sbbs/-/commit/83c0999b76ef8ce0c77513a4
    Modified Files:
    src/sbbs3/websrvr.c
    Log Message:
    Fix issue #942

    Session is initialized to HTTP/0.9 (which doesn't send headers) and
    the HEAD method (which doesn't send a body). This was caught in
    writebuf(), which returned 0 due to the body not being sent, which
    caused the error to be logged.

    Set the values to HTTP/1.0 and GET so we can call send_error()
    before we read a request line and actually send an error.

    Additionally, add a LOG_INFO to writebuf() when it returns 0 due
    to body being disabled to make this kind of thing easier to find
    in the future.

    Finally, don't attempt to send an error body if send_headers()
    fails or if we should not send a body.

    This would also allow us to send a 408 if we wanted to, but I've
    never been convinced that's useful.

    ---
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  • From Rob Swindell (on Debian Linux)@VERT to Git commit to main/sbbs/master on Mon Jun 16 19:06:06 2025
    https://gitlab.synchro.net/main/sbbs/-/commit/76acaac000c1bba5e025f115
    Modified Files:
    src/sbbs3/websrvr.c
    Log Message:
    Output the User-Agent header value as a info-level log message

    Useful for tracking (some/most) bots

    ---
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  • From Rob Swindell (on Debian Linux)@VERT to Git commit to main/sbbs/master on Mon Jun 16 19:06:06 2025
    https://gitlab.synchro.net/main/sbbs/-/commit/2d4af7be9e8a92ebbbc4242b
    Modified Files:
    src/sbbs3/websrvr.c
    Log Message:
    Reduce contention on protected-int thread_count

    We can capture the new value upon atomic-decrement, use it

    ---
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  • From Rob Swindell (on Debian Linux)@VERT to Git commit to main/sbbs/master on Wed Jun 18 18:01:15 2025
    https://gitlab.synchro.net/main/sbbs/-/commit/4090d823bba9fa4630bd79c2
    Modified Files:
    src/sbbs3/websrvr.c
    Log Message:
    Solve the active_clients exceeds configured max_clients issue

    e.g. with [Web] max_clients configured for 200, the following could occur: sbbs: web 0522 HTTP [34.45.142.114] Session thread terminated (220 clients, 378 threads remain, 128627 served)

    The issue was that the active_client count is incremented in the http_session_thread(), but was being checked in the main web server/listening thread.

    So now we'll check in both threads, but allow more HTTPS/TLS client threads
    (10 more) than the configured max, to allow for successfull sending of error 503 (up to a point), while HTTP (non-TLS) connections exceeding the configured max will be immediately dropped without creating a session thread.

    We now no longer increment the client highwater mark for connections that exceed the maximum.

    Also fix send_error() to not log the Connection: close\r\nContent-Length: 0\r\n portion of 503 errors.

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  • From Rob Swindell (on Debian Linux)@VERT to Git commit to main/sbbs/master on Wed Jun 18 18:01:15 2025
    https://gitlab.synchro.net/main/sbbs/-/commit/1f480068adc0ac59c5b4e663
    Modified Files:
    src/sbbs3/websrvr.c
    Log Message:
    Apply max connections per IP limit to filter-exempted IPs

    This exemption could (did) cause confusing "works for me" situations when testing max concurrent connections settings that may fail for others.

    So, just because an IP address is listed in ctrl/ipfilter_exempt.cfg, no
    longer means that clients at that IP are exempt from concurrent connection limits (from a single IP address).

    ---
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  • From Rob Swindell (on Debian Linux)@VERT to Git commit to main/sbbs/master on Wed Jun 18 21:21:55 2025
    https://gitlab.synchro.net/main/sbbs/-/commit/c0c3dbdf76d91f155a9371ca
    Modified Files:
    src/sbbs3/websrvr.c
    Log Message:
    Revert "Apply max connections per IP limit to filter-exempted IPs"

    This reverts commit 1f480068adc0ac59c5b4e6634dc827c52721a7da.

    The other servers exempt ipfilter_exempt.cfg listed hosts still and it looks like I really need gitlab to be exempt from the concurrent connections limit for (all my) webhooks to work reliably since they run in parallel and I can't seem to configure that behavior in gitlab.

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  • From Rob Swindell (on Windows 11)@VERT to Git commit to main/sbbs/master on Wed Jun 18 21:58:33 2025
    https://gitlab.synchro.net/main/sbbs/-/commit/a43ca30ea674ac77ca98d74e
    Modified Files:
    src/sbbs3/websrvr.c
    Log Message:
    Pad "HTTP" to 5 chars for protocol field in log messages

    ... aligning display for easier reading with non-proportional fonts.

    Includes the client's protocol and IP address in JS log messages/errors.

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