HTTP: implement Brotli content encoding

This uses the brotli external library (https://github.com/google/brotli).
Brotli becomes a feature: additional curl_version_info() bit and
structure fields are provided for it and CURLVERSION_NOW bumped.

Tests 314 and 315 check Brotli content unencoding with correct and
erroneous data.

Some tests are updated to accomodate with the now configuration dependent
parameters of the Accept-Encoding header.

1 files changed, 91 insertions, 0 deletions

diff --git a/tests/data/test315 b/tests/data/test315
new file mode 100644
index 000000000..c75d9ae7b
--- /dev/null
+++ b/tests/data/test315
@@ -0,0 +1,91 @@
+<testcase>
+<info>
+<keywords>
+HTTP
+HTTP GET
+compressed
+FAILURE
+</keywords>
+</info>
+#
+# Server-side
+<reply>
+# this brotli chunk has three bytes removed from the beginning
+<data base64="yes">
+SFRUUC8xLjEgMjAwIE9LDQpEYXRlOiBNb24sIDI5IE5vdiAyMDA0IDIxOjU2OjUzIEdNVA0KU2Vy
+dmVyOiBBcGFjaGUvMS4zLjMxIChEZWJpYW4gR05VL0xpbnV4KSBtb2RfZ3ppcC8xLjMuMjYuMWEg
+UEhQLzQuMy45LTEgbW9kX3NzbC8yLjguMjAgT3BlblNTTC8wLjkuN2QgbW9kX3BlcmwvMS4yOQ0K
+VmFyeTogQWNjZXB0LUVuY29kaW5nDQpDb250ZW50LVR5cGU6IHRleHQvaHRtbDsgY2hhcnNldD1J
+U08tODg1OS0xDQpDb250ZW50LUVuY29kaW5nOiBicg0KQ29udGVudC1MZW5ndGg6IDEwNTYNCg0K
+AJwFdhtdgaQ8i+mZBoO/lwogPKuqHpeP38jV5TDITTB7/oJVCS69FFDKWDVtMk8y4SfMSu/a9vvL
+xWPweDCKePH/2y9VIkbF+EgCYSNs9v53J8QTIHT4ZucHCCRQiXRdT6XdE60KSlbIvobr5rJQsRn7
+ipIjMVMq3Go+/UXtY2d0yP1qaaGSxCn8nZuUNGh74KOI7EEkgFl1tjYytkpc9mJJy9J+wTTI+Hro
+UQP2VR2DYkNoUECqgtOLlGcVEln4+eVzEWcrb8fNrcrVxLArJBpSd8FX8eZs8ebJUO7aBZ5epHz6
+zel7lhLlfHoQIkGh34riaSVr7VTGDmmO6HjSCzKO27LybZ9I3CtMSD2Il4mB131Tlcbut1BdzL4X
+U4DZYMLBN4jwVZEoHpjzHX+vQ3prnrNw4oB7OWOr/fBzjvfjDuO24WxwzPqPo+V6VNcthz1pfF1+
+sMK4yWY7He33m32EuQgQFSZ3a5Wu4FyQcAb45Z+wUxM5XCmX52YmdUR2YTs+W+bNw2EZSfMRcP3C
+inyJI/cTT+JubL3T4COkhz0Rffeoh/3E4c/6ugma1ubhokYecXp8HBwmeDL48d62H26u69DOyMhg
+1PFj+oVDWnK4K+L5AlRr0mpJLqoGHrzflMLQ6qL2oIo9hN6qCeZEEqXM+/KunVYpWVeTY+hthA0y
+5p5RLLTTS4cehaJOpbFyAVxZOardIkJAVx0NshOZY4hDbts9BXsXzFEOgsFhrIQYgh04StZzllIR
+MVDptYlwGmpZCHHmVECdGiFIfEhkQ2INSwMCuuKpaycgSOO9hJA9UFKDBdzTiLJBP9oUVkKLbHjw
+icICCi3k0HcppcvQaW27AMI06kuQU4WUGizgnkaUDcZqCgsotMgG528UFlBo8SFpb05OAjJq2gEI
+0UgN93KS1OvAOYSLN5IaLOCeRnQpJXuLUwcm7urpg6lYxAk26uEoADdsRytHGkSWjOKP6T07wice
+uNo7CXyu7ohtUZXoEWawRHGVkPDVJYqH+xa0DDRKSSgM4K3efLVPSTaUPvBGIZgnn2JBFFWaMsKZ
+guUuUnz6qaSGqnmGAYiupdC1EFye58V4CLbWVjJU4NF2jrOUYR/Dv04zYwVQtQcFzgmK6H4NHAhm
+b0a6pQRKxZaZ+x2vCC7sCuIu4dNCATwqzk12ue6oEsxzYybLPNGJd084M43O9W8E+5/drd/FQVB2
+X4jlFlCuHuWeQxQo+w73Tb9swW692v3BlfQTP1ClWzuJ+RwuSb9m4V3QVa4MEL+0Xzc5FX9P+YX1
+cgaL+6oMHw7L+IOjOt+n1BOloyqk35lLHX7RZmu8SckMnGP95XjWc4FRKP9x/iXrKaeCnut/zsty
+ZdJS5FRmBT/wb5KK9YWBGnqPLO8isN2HS8gA
+</data>
+
+<datacheck>
+HTTP/1.1 200 OK

+Date: Mon, 29 Nov 2004 21:56:53 GMT

+Server: Apache/1.3.31 (Debian GNU/Linux) mod_gzip/1.3.26.1a PHP/4.3.9-1 mod_ssl/2.8.20 OpenSSL/0.9.7d mod_perl/1.29

+Vary: Accept-Encoding

+Content-Type: text/html; charset=ISO-8859-1

+Content-Encoding: br

+Content-Length: 1056

+

+</datacheck>
+
+</reply>
+
+#
+# Client-side
+<client>
+<features>
+brotli
+</features>
+<server>
+http
+</server>
+ <name>
+HTTP GET brotli compressed content with broken header
+ </name>
+ <command>
+http://%HOSTIP:%HTTPPORT/315 --compressed
+</command>
+</client>
+
+#
+# Verify data after the test has been "shot"
+<verify>
+<strip>
+^User-Agent:.*
+</strip>
+<strippart>
+s/^Accept-Encoding: .*/Accept-Encoding: xxx/
+</strippart>
+<protocol>
+GET /315 HTTP/1.1

+Host: %HOSTIP:%HTTPPORT

+Accept: */*

+Accept-Encoding: xxx
+

+</protocol>
+<errorcode>
+61
+</errorcode>
+</verify>
+</testcase>