This is an attmept to link with NSS statically on macOS (both Intel and
Apple M1).
Statically linking with NSS is a total mess and completely
undocumented. There are 20+ .a files to link with, and their linking
order matters. The main reference for this commit is a Mozilla Rust code
responsible for statically linking NSS:
https://github.com/mozilla/application-services/blob/b2690fd2e4cc3e8e10b6868ab0de8b79c89d3a93/components/support/rc_crypto/nss/nss_b uild_common/src/lib.rs#L94
Unfortunately, even with that in hand, a lot of hacking is needed to
make it all work.
Previously '-l:nghttp2.a' was used to specify static linking with
nghttp2 and to stop the linker from linking dynamically with
libnghttp2.so. This way of linking is not supported on macOS. Instead,
add '--disable-shared' to prevent libnghttp2.so from even being
compiled. This way the linker will find the static library only and link
against it.
Set CURLOPT_ACCEPT_ENCODING to an empty string in
curl_easy_impersonate() to enable decompression of encoded responses
using all built-in compressions. This is similar to adding
'--compressed' in the command line curl and is necessary since
curl_easy_impersonate() adds the 'Accept-Encoding' header which may
cause the server to respond with compressed content.
Change the binary names of curl and libcurl as part of the curl build
process by patching curl's build scripts. When running 'make' in the
patched curl directory the resulting binaries will be already named
'curl-impersonate-ff' and 'curl-impersonate-chrome' (and the same for
libcurl), thus saving the need for manually renaming them after the
compilation. This also enables running 'make install' with curl's own
Makefiles in order to install curl-impersonate.
Add support for impersonating Firefox 98 released a few days ago. It has
the same TLS signature as Firefox 95 so the adaptation includes changing
the user-agent only. Upgrade the NSS version used to 3.75, even though
it's not strictly necessary.
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