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Handle curl_easy_reset() calls when impersonating (#44)

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curl_easy_reset() may be used by an application to reset the options on
a curl handle. If an app has the CURL_IMPERSONATE env var defined, then
the impersonation options are automatically set in curl_easy_init() but
will be cleared in a call to curl_easy_reset(). The desired behavior is
for the impersonation options to be retained (as they are "transparent"
to the user), which this commit takes care of.

Note that this only has an effect when libcurl-impersonate is loaded and
the CURL_IMPERSONATE env var is set. Otherwise the regular behavior of
resetting all the handle options is retained.

Test that the unique TLS signature of curl-impersonate is preserved
after a call to curl_easy_reset() when libcurl-impersonate is loaded.
For this purpose change the 'minicurl' testing util to support multiple
URLs and launch it with 2 different URLs when testing the TLS signature.
This commit is contained in:
lwthiker
2022-05-18 11:43:46 +03:00
committed by GitHub
parent aa6e8a4700
commit 82bca6dab7
5 changed files with 149 additions and 73 deletions
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24
chrome/patches/curl-impersonate.patch
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@@ -244,7 +244,7 @@ index 769363941..cd59ad4b2 100644
CHECKSRC = $(CS_$(V))
diff --git a/lib/easy.c b/lib/easy.c
index 20293a710..37cda0992 100644
index 20293a710..8b6a0f4e1 100644
--- a/lib/easy.c
+++ b/lib/easy.c
@@ -80,6 +80,7 @@
@@ -755,6 +755,28 @@ index 20293a710..37cda0992 100644
/* Reinitialize an SSL engine for the new handle
* note: the engine name has already been copied by dupset */
if(outcurl->set.str[STRING_SSL_ENGINE]) {
@@ -967,6 +1440,8 @@ struct Curl_easy *curl_easy_duphandle(struct Curl_easy *data)
*/
void curl_easy_reset(struct Curl_easy *data)
{
+ char *target;
+
Curl_free_request_state(data);
/* zero out UserDefined data: */
@@ -991,6 +1466,12 @@ void curl_easy_reset(struct Curl_easy *data)
#if !defined(CURL_DISABLE_HTTP) && !defined(CURL_DISABLE_CRYPTO_AUTH)
Curl_http_auth_cleanup_digest(data);
#endif
+
+ target = curl_getenv("CURL_IMPERSONATE");
+ if(target) {
+ curl_easy_impersonate(data, target);
+ free(target);
+ }
}
/*
diff --git a/lib/easyoptions.c b/lib/easyoptions.c
index 04871ad1e..ce280eaa3 100644
--- a/lib/easyoptions.c