Add 'apk add nss' for the final alpine image of the Firefox version of
curl-impersonate. This is needed for curl to find the list of root
certificates.
Add Dockerfiles for building curl-impersonate on Alpine Linux.
The Dockerfile template file was modified to support Alpine Linux,
mainly by changing the dependency installation from 'apt' to 'apk'.
The resulting alpine images are small (~11mb) and will be uploaded to
Docker hub.
Since the firefox and chrome builds are similar except for the TLS
library used, it makes sense to unify their Dockerfiles. This commit
introduces a template Dockerfile from which both the build Dockerfiles
are generated using the simple 'mustache' template system.
Add layer caching to speed up the CI builds. In addition, optimize the
Dockerfiles by moving all the dependency installations (which are
unlikely to change much) to the initial layers.
Consolidate all of curl's patch files into a single file (one for each
browser). The modified curl source code is now maintained in Git (at
https://github.com/lwthiker/curl) and it is easier to just
generate the needed patch with 'git --diff'.
After inspecting an encrypted TLS session, I noticed that Firefox
sends the HTTP2 pseudo headers in the order :method, :path, :authority,
:scheme while curl was sending them with :authority being the last one.
This patch fixes the order of HTTP2 headers in curl to match Firefox.
In preparation for merging the support for Chrome impersonation, move
all build files to the 'firefox' folder. The two builds will live
separately as they are rather different (using two different SSL
libraries for instance).
lwthiker