request: correctly reset the eos_sent flag

Add test cases

Bug: https://marc.info/?l=git&m=172620452502747&w=2
Reported-by: Patrick Steinhardt
Closes #14895

cmake: add Linux CI job, fix pytest with cmake

- extend existing Linux workflow with CMake support.
Including running pytest the first time with CMake.

- cmake: generate `test

cmake: add Linux CI job, fix pytest with cmake

- extend existing Linux workflow with CMake support.
Including running pytest the first time with CMake.

- cmake: generate `tests/config` and `tests/http/config.ini`.
Required for pytest tests.
Uses basic detection logic. Feel free to take it from here.
Also dump config files in a CI step for debugging purposes.

- cmake: build `tests/http/clients` programs.

- fix portability issues with `tests/http/clients` programs.
Some of them use `getopt()`, which is not supported by MSVC.
Fix the rest to compile in CI (old-mingw-w64, MSVC, Windows).

- GHA/linux: add CMake job matching an existing autotools one.

- GHA/linux: test `-DCURL_LIBCURL_VERSIONED_SYMBOLS=ON`
in the new CMake job.

- reorder testdeps to build server, client tests first and then
libtests and units, to catch errors in the more complex/unique
sources earlier.

- sort list in `tests/http/clients/Makefile.inc`.

Closes #14382

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request: paused upload on completed download, assess connection

A transfer with a completed download that is still uploading needs to
check the connection state when it is PAUSEd, since

request: paused upload on completed download, assess connection

A transfer with a completed download that is still uploading needs to
check the connection state when it is PAUSEd, since connection
close/errors would otherwise go unnoticed.

Reported-by: Sergey Bronnikov
Fixes #13260
Closes #13271

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h2: testcase and fix for pausing h2 streams

- refs #11982 where it was noted that paused transfers may
close successfully without delivering the complete data
- made sample poc int

h2: testcase and fix for pausing h2 streams

- refs #11982 where it was noted that paused transfers may
close successfully without delivering the complete data
- made sample poc into tests/http/client/h2-pausing.c and
added test_02_27 to reproduce

Closes #11989
Fixes #11982
Reported-by: Harry Sintonen

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tests: TLS session sharing test

- test TLS session sharing with special test client
- expect failure with wolfSSL
- disable flaky wolfSSL test_02_07b

Closes #11675

http2: upgrade tests and add fix for non-existing stream

- check in h2 filter recv that stream actually exists
and return error if not
- add test for parallel, extreme h2 upgrades

http2: upgrade tests and add fix for non-existing stream

- check in h2 filter recv that stream actually exists
and return error if not
- add test for parallel, extreme h2 upgrades that fail if
connections get reused before fully switched
- add h2 upgrade upload test just for completeness

Closes #11563

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tests/http: more tests with specific clients

- Makefile support for building test specific clients in tests/http/clients
- auto-make of clients when invoking pytest
- added test_09_0

tests/http: more tests with specific clients

- Makefile support for building test specific clients in tests/http/clients
- auto-make of clients when invoking pytest
- added test_09_02 for server PUSH_PROMISEs using clients/h2-serverpush
- added test_02_21 for lib based downloads and pausing/unpausing transfers

curl url parser:
- added internal method `curl_url_set_authority()` for setting the
authority part of a url (used for PUSH_PROMISE)

http2:
- made logging of PUSH_PROMISE handling nicer

Placing python test requirements in requirements.txt files
- separate files to base test suite and http tests since use
and module lists differ
- using the files in the gh workflows

websocket test cases, fixes for we and bufq
- bufq: account for spare chunks in space calculation
- bufq: reset chunks that are skipped empty
- ws: correctly encode frames with 126 bytes payload
- ws: update frame meta information on first call of collect
callback that fills user buffer
- test client ws-data: some test/reporting improvements

Closes #11006

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