Add impersonation support for Firefox 102

firefox/patches/curl-impersonate.patch

@@ -215,183 +215,35 @@ index 769363941..6e2f1b829 100644
  libcurlu_la_SOURCES = $(CSOURCES) $(HHEADERS)
  
  CHECKSRC = $(CS_$(V))
+diff --git a/lib/Makefile.inc b/lib/Makefile.inc
+index 3e9ddec12..fb883832d 100644
+--- a/lib/Makefile.inc
++++ b/lib/Makefile.inc
+@@ -157,6 +157,7 @@ LIB_CFILES =         \
+   idn_win32.c        \
+   if2ip.c            \
+   imap.c             \
++  impersonate.c      \
+   inet_ntop.c        \
+   inet_pton.c        \
+   krb5.c             \
 diff --git a/lib/easy.c b/lib/easy.c
-index 20293a710..66730b5fc 100644
+index 20293a710..88484d5af 100644
 --- a/lib/easy.c
 +++ b/lib/easy.c
-@@ -80,6 +80,7 @@
+@@ -80,6 +80,8 @@
  #include "dynbuf.h"
  #include "altsvc.h"
  #include "hsts.h"
 +#include "strcase.h"
++#include "impersonate.h"
  
  /* The last 3 #include files should be in this order */
  #include "curl_printf.h"
-@@ -282,6 +283,237 @@ void curl_global_cleanup(void)
+@@ -282,6 +284,73 @@ void curl_global_cleanup(void)
    init_flags  = 0;
  }
  
-+/*
-+ * curl-impersonate: Options to be set for each supported target browser.
-+ * Note: this does not include the HTTP headers, which are handled separately
-+ * in Curl_http().
-+ */
-+#define IMPERSONATE_MAX_HEADERS 32
-+static const struct impersonate_opts {
-+  const char *target;
-+  int httpversion;
-+  int ssl_version;
-+  const char *ciphers;
-+  const char *http_headers[IMPERSONATE_MAX_HEADERS];
-+  /* Other TLS options will come here in the future once they are
-+   * configurable through curl_easy_setopt() */
-+} impersonations[] = {
-+  {
-+    .target = "ff91esr",
-+    .httpversion = CURL_HTTP_VERSION_2_0,
-+    .ssl_version = CURL_SSLVERSION_TLSv1_2 | CURL_SSLVERSION_MAX_DEFAULT,
-+    .ciphers =
-+      "aes_128_gcm_sha_256,"
-+      "chacha20_poly1305_sha_256,"
-+      "aes_256_gcm_sha_384,"
-+      "ecdhe_ecdsa_aes_128_gcm_sha_256,"
-+      "ecdhe_rsa_aes_128_gcm_sha_256,"
-+      "ecdhe_ecdsa_chacha20_poly1305_sha_256,"
-+      "ecdhe_rsa_chacha20_poly1305_sha_256,"
-+      "ecdhe_ecdsa_aes_256_gcm_sha_384,"
-+      "ecdhe_rsa_aes_256_gcm_sha_384,"
-+      "ecdhe_ecdsa_aes_256_sha,"
-+      "ecdhe_ecdsa_aes_128_sha,"
-+      "ecdhe_rsa_aes_128_sha,"
-+      "ecdhe_rsa_aes_256_sha,"
-+      "rsa_aes_128_gcm_sha_256,"
-+      "rsa_aes_256_gcm_sha_384,"
-+      "rsa_aes_128_sha,"
-+      "rsa_aes_256_sha,"
-+      "rsa_3des_ede_cbc_sha",
-+    .http_headers = {
-+      "User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:91.0) Gecko/20100101 Firefox/91.0",
-+      "Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8",
-+      "Accept-Language: en-US,en;q=0.5",
-+      "Accept-Encoding: gzip, deflate, br",
-+      "Upgrade-Insecure-Requests: 1",
-+      "Sec-Fetch-Dest: document",
-+      "Sec-Fetch-Mode: navigate",
-+      "Sec-Fetch-Site: none",
-+      "Sec-Fetch-User: ?1",
-+      "TE: Trailers"
-+    }
-+  },
-+  {
-+    .target = "ff95",
-+    .httpversion = CURL_HTTP_VERSION_2_0,
-+    .ssl_version = CURL_SSLVERSION_TLSv1_2 | CURL_SSLVERSION_MAX_DEFAULT,
-+    .ciphers =
-+      "aes_128_gcm_sha_256,"
-+      "chacha20_poly1305_sha_256,"
-+      "aes_256_gcm_sha_384,"
-+      "ecdhe_ecdsa_aes_128_gcm_sha_256,"
-+      "ecdhe_rsa_aes_128_gcm_sha_256,"
-+      "ecdhe_ecdsa_chacha20_poly1305_sha_256,"
-+      "ecdhe_rsa_chacha20_poly1305_sha_256,"
-+      "ecdhe_ecdsa_aes_256_gcm_sha_384,"
-+      "ecdhe_rsa_aes_256_gcm_sha_384,"
-+      "ecdhe_ecdsa_aes_256_sha,"
-+      "ecdhe_ecdsa_aes_128_sha,"
-+      "ecdhe_rsa_aes_128_sha,"
-+      "ecdhe_rsa_aes_256_sha,"
-+      "rsa_aes_128_gcm_sha_256,"
-+      "rsa_aes_256_gcm_sha_384,"
-+      "rsa_aes_128_sha,"
-+      "rsa_aes_256_sha",
-+    .http_headers = {
-+      "User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:95.0) Gecko/20100101 Firefox/95.0",
-+      "Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,*/*;q=0.8",
-+      "Accept-Language: en-US,en;q=0.5",
-+      "Accept-Encoding: gzip, deflate, br",
-+      "Upgrade-Insecure-Requests: 1",
-+      "Sec-Fetch-Dest: document",
-+      "Sec-Fetch-Mode: navigate",
-+      "Sec-Fetch-Site: none",
-+      "Sec-Fetch-User: ?1",
-+      "TE: Trailers"
-+    }
-+  },
-+  {
-+    .target = "ff98",
-+    .httpversion = CURL_HTTP_VERSION_2_0,
-+    .ssl_version = CURL_SSLVERSION_TLSv1_2 | CURL_SSLVERSION_MAX_DEFAULT,
-+    .ciphers =
-+      "aes_128_gcm_sha_256,"
-+      "chacha20_poly1305_sha_256,"
-+      "aes_256_gcm_sha_384,"
-+      "ecdhe_ecdsa_aes_128_gcm_sha_256,"
-+      "ecdhe_rsa_aes_128_gcm_sha_256,"
-+      "ecdhe_ecdsa_chacha20_poly1305_sha_256,"
-+      "ecdhe_rsa_chacha20_poly1305_sha_256,"
-+      "ecdhe_ecdsa_aes_256_gcm_sha_384,"
-+      "ecdhe_rsa_aes_256_gcm_sha_384,"
-+      "ecdhe_ecdsa_aes_256_sha,"
-+      "ecdhe_ecdsa_aes_128_sha,"
-+      "ecdhe_rsa_aes_128_sha,"
-+      "ecdhe_rsa_aes_256_sha,"
-+      "rsa_aes_128_gcm_sha_256,"
-+      "rsa_aes_256_gcm_sha_384,"
-+      "rsa_aes_128_sha,"
-+      "rsa_aes_256_sha",
-+    .http_headers = {
-+      "User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:98.0) Gecko/20100101 Firefox/98.0",
-+      "Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,*/*;q=0.8",
-+      "Accept-Language: en-US,en;q=0.5",
-+      "Accept-Encoding: gzip, deflate, br",
-+      "Upgrade-Insecure-Requests: 1",
-+      "Sec-Fetch-Dest: document",
-+      "Sec-Fetch-Mode: navigate",
-+      "Sec-Fetch-Site: none",
-+      "Sec-Fetch-User: ?1",
-+      "TE: Trailers"
-+    }
-+  },
-+  {
-+    .target = "ff100",
-+    .httpversion = CURL_HTTP_VERSION_2_0,
-+    .ssl_version = CURL_SSLVERSION_TLSv1_2 | CURL_SSLVERSION_MAX_DEFAULT,
-+    .ciphers =
-+      "aes_128_gcm_sha_256,"
-+      "chacha20_poly1305_sha_256,"
-+      "aes_256_gcm_sha_384,"
-+      "ecdhe_ecdsa_aes_128_gcm_sha_256,"
-+      "ecdhe_rsa_aes_128_gcm_sha_256,"
-+      "ecdhe_ecdsa_chacha20_poly1305_sha_256,"
-+      "ecdhe_rsa_chacha20_poly1305_sha_256,"
-+      "ecdhe_ecdsa_aes_256_gcm_sha_384,"
-+      "ecdhe_rsa_aes_256_gcm_sha_384,"
-+      "ecdhe_ecdsa_aes_256_sha,"
-+      "ecdhe_ecdsa_aes_128_sha,"
-+      "ecdhe_rsa_aes_128_sha,"
-+      "ecdhe_rsa_aes_256_sha,"
-+      "rsa_aes_128_gcm_sha_256,"
-+      "rsa_aes_256_gcm_sha_384,"
-+      "rsa_aes_128_sha,"
-+      "rsa_aes_256_sha",
-+    .http_headers = {
-+      "User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:100.0) Gecko/20100101 Firefox/100.0",
-+      "Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,*/*;q=0.8",
-+      "Accept-Language: en-US,en;q=0.5",
-+      "Accept-Encoding: gzip, deflate, br",
-+      "Upgrade-Insecure-Requests: 1",
-+      "Sec-Fetch-Dest: document",
-+      "Sec-Fetch-Mode: navigate",
-+      "Sec-Fetch-Site: none",
-+      "Sec-Fetch-User: ?1",
-+      "TE: Trailers"
-+    }
-+  }
-+};
-+
-+#define NUM_IMPERSONATIONS \
-+  sizeof(impersonations) / sizeof(impersonations[0])
-+
 +/*
 + * curl-impersonate:
 + * Call curl_easy_setopt() with all the needed options as defined in the
@@ -401,19 +253,16 @@ index 20293a710..66730b5fc 100644
 +{
 +  int i;
 +  int ret;
-+  const struct impersonate_opts *opts = NULL;
++  const struct impersonate_opts *opts;
 +  struct curl_slist *headers = NULL;
 +
-+  for(i = 0; i < NUM_IMPERSONATIONS; i++) {
-+    if (Curl_strncasecompare(target,
-+                             impersonations[i].target,
-+                             strlen(impersonations[i].target))) {
-+      opts = &impersonations[i];
++  for (opts = impersonations; opts->target != NULL; opts++) {
++    if (Curl_strncasecompare(target, opts->target, strlen(opts->target))) {
 +      break;
 +    }
 +  }
 +
-+  if(!opts) {
++  if(opts->target == NULL) {
 +    DEBUGF(fprintf(stderr, "Error: unknown impersonation target '%s'\n",
 +                   target));
 +    return CURLE_BAD_FUNCTION_ARGUMENT;
@@ -465,7 +314,7 @@ index 20293a710..66730b5fc 100644
  /*
   * curl_easy_init() is the external interface to alloc, setup and init an
   * easy handle that is returned. If anything goes wrong, NULL is returned.
-@@ -290,6 +522,7 @@ struct Curl_easy *curl_easy_init(void)
+@@ -290,6 +359,7 @@ struct Curl_easy *curl_easy_init(void)
  {
    CURLcode result;
    struct Curl_easy *data;
@@ -473,7 +322,7 @@ index 20293a710..66730b5fc 100644
  
    /* Make sure we inited the global SSL stuff */
    if(!initialized) {
-@@ -308,6 +541,22 @@ struct Curl_easy *curl_easy_init(void)
+@@ -308,6 +378,22 @@ struct Curl_easy *curl_easy_init(void)
      return NULL;
    }
  
@@ -496,7 +345,7 @@ index 20293a710..66730b5fc 100644
    return data;
  }
  
-@@ -878,6 +1127,13 @@ struct Curl_easy *curl_easy_duphandle(struct Curl_easy *data)
+@@ -878,6 +964,13 @@ struct Curl_easy *curl_easy_duphandle(struct Curl_easy *data)
      outcurl->state.referer_alloc = TRUE;
    }
  
@@ -510,7 +359,7 @@ index 20293a710..66730b5fc 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 +1223,8 @@ struct Curl_easy *curl_easy_duphandle(struct Curl_easy *data)
+@@ -967,6 +1060,8 @@ struct Curl_easy *curl_easy_duphandle(struct Curl_easy *data)
   */
  void curl_easy_reset(struct Curl_easy *data)
  {
@@ -519,7 +368,7 @@ index 20293a710..66730b5fc 100644
    Curl_free_request_state(data);
  
    /* zero out UserDefined data: */
-@@ -991,6 +1249,12 @@ void curl_easy_reset(struct Curl_easy *data)
+@@ -991,6 +1086,12 @@ 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
@@ -899,6 +748,229 @@ index e74400a4c..1dd2593a5 100644
    /* we are going to copy mem to httpc->inbuf.  This is required since
       mem is part of buffer pointed by stream->mem, and callbacks
       called by nghttp2_session_mem_recv() will write stream specific
+diff --git a/lib/impersonate.c b/lib/impersonate.c
+new file mode 100644
+index 000000000..086fb383a
+--- /dev/null
++++ b/lib/impersonate.c
+@@ -0,0 +1,186 @@
++#include "curl_setup.h"
++
++#include "impersonate.h"
++
++const struct impersonate_opts impersonations[] = {
++  {
++    .target = "ff91esr",
++    .httpversion = CURL_HTTP_VERSION_2_0,
++    .ssl_version = CURL_SSLVERSION_TLSv1_2 | CURL_SSLVERSION_MAX_DEFAULT,
++    .ciphers =
++      "aes_128_gcm_sha_256,"
++      "chacha20_poly1305_sha_256,"
++      "aes_256_gcm_sha_384,"
++      "ecdhe_ecdsa_aes_128_gcm_sha_256,"
++      "ecdhe_rsa_aes_128_gcm_sha_256,"
++      "ecdhe_ecdsa_chacha20_poly1305_sha_256,"
++      "ecdhe_rsa_chacha20_poly1305_sha_256,"
++      "ecdhe_ecdsa_aes_256_gcm_sha_384,"
++      "ecdhe_rsa_aes_256_gcm_sha_384,"
++      "ecdhe_ecdsa_aes_256_sha,"
++      "ecdhe_ecdsa_aes_128_sha,"
++      "ecdhe_rsa_aes_128_sha,"
++      "ecdhe_rsa_aes_256_sha,"
++      "rsa_aes_128_gcm_sha_256,"
++      "rsa_aes_256_gcm_sha_384,"
++      "rsa_aes_128_sha,"
++      "rsa_aes_256_sha,"
++      "rsa_3des_ede_cbc_sha",
++    .http_headers = {
++      "User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:91.0) Gecko/20100101 Firefox/91.0",
++      "Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8",
++      "Accept-Language: en-US,en;q=0.5",
++      "Accept-Encoding: gzip, deflate, br",
++      "Upgrade-Insecure-Requests: 1",
++      "Sec-Fetch-Dest: document",
++      "Sec-Fetch-Mode: navigate",
++      "Sec-Fetch-Site: none",
++      "Sec-Fetch-User: ?1",
++      "TE: Trailers"
++    }
++  },
++  {
++    .target = "ff95",
++    .httpversion = CURL_HTTP_VERSION_2_0,
++    .ssl_version = CURL_SSLVERSION_TLSv1_2 | CURL_SSLVERSION_MAX_DEFAULT,
++    .ciphers =
++      "aes_128_gcm_sha_256,"
++      "chacha20_poly1305_sha_256,"
++      "aes_256_gcm_sha_384,"
++      "ecdhe_ecdsa_aes_128_gcm_sha_256,"
++      "ecdhe_rsa_aes_128_gcm_sha_256,"
++      "ecdhe_ecdsa_chacha20_poly1305_sha_256,"
++      "ecdhe_rsa_chacha20_poly1305_sha_256,"
++      "ecdhe_ecdsa_aes_256_gcm_sha_384,"
++      "ecdhe_rsa_aes_256_gcm_sha_384,"
++      "ecdhe_ecdsa_aes_256_sha,"
++      "ecdhe_ecdsa_aes_128_sha,"
++      "ecdhe_rsa_aes_128_sha,"
++      "ecdhe_rsa_aes_256_sha,"
++      "rsa_aes_128_gcm_sha_256,"
++      "rsa_aes_256_gcm_sha_384,"
++      "rsa_aes_128_sha,"
++      "rsa_aes_256_sha",
++    .http_headers = {
++      "User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:95.0) Gecko/20100101 Firefox/95.0",
++      "Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,*/*;q=0.8",
++      "Accept-Language: en-US,en;q=0.5",
++      "Accept-Encoding: gzip, deflate, br",
++      "Upgrade-Insecure-Requests: 1",
++      "Sec-Fetch-Dest: document",
++      "Sec-Fetch-Mode: navigate",
++      "Sec-Fetch-Site: none",
++      "Sec-Fetch-User: ?1",
++      "TE: Trailers"
++    }
++  },
++  {
++    .target = "ff98",
++    .httpversion = CURL_HTTP_VERSION_2_0,
++    .ssl_version = CURL_SSLVERSION_TLSv1_2 | CURL_SSLVERSION_MAX_DEFAULT,
++    .ciphers =
++      "aes_128_gcm_sha_256,"
++      "chacha20_poly1305_sha_256,"
++      "aes_256_gcm_sha_384,"
++      "ecdhe_ecdsa_aes_128_gcm_sha_256,"
++      "ecdhe_rsa_aes_128_gcm_sha_256,"
++      "ecdhe_ecdsa_chacha20_poly1305_sha_256,"
++      "ecdhe_rsa_chacha20_poly1305_sha_256,"
++      "ecdhe_ecdsa_aes_256_gcm_sha_384,"
++      "ecdhe_rsa_aes_256_gcm_sha_384,"
++      "ecdhe_ecdsa_aes_256_sha,"
++      "ecdhe_ecdsa_aes_128_sha,"
++      "ecdhe_rsa_aes_128_sha,"
++      "ecdhe_rsa_aes_256_sha,"
++      "rsa_aes_128_gcm_sha_256,"
++      "rsa_aes_256_gcm_sha_384,"
++      "rsa_aes_128_sha,"
++      "rsa_aes_256_sha",
++    .http_headers = {
++      "User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:98.0) Gecko/20100101 Firefox/98.0",
++      "Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,*/*;q=0.8",
++      "Accept-Language: en-US,en;q=0.5",
++      "Accept-Encoding: gzip, deflate, br",
++      "Upgrade-Insecure-Requests: 1",
++      "Sec-Fetch-Dest: document",
++      "Sec-Fetch-Mode: navigate",
++      "Sec-Fetch-Site: none",
++      "Sec-Fetch-User: ?1",
++      "TE: Trailers"
++    }
++  },
++  {
++    .target = "ff100",
++    .httpversion = CURL_HTTP_VERSION_2_0,
++    .ssl_version = CURL_SSLVERSION_TLSv1_2 | CURL_SSLVERSION_MAX_DEFAULT,
++    .ciphers =
++      "aes_128_gcm_sha_256,"
++      "chacha20_poly1305_sha_256,"
++      "aes_256_gcm_sha_384,"
++      "ecdhe_ecdsa_aes_128_gcm_sha_256,"
++      "ecdhe_rsa_aes_128_gcm_sha_256,"
++      "ecdhe_ecdsa_chacha20_poly1305_sha_256,"
++      "ecdhe_rsa_chacha20_poly1305_sha_256,"
++      "ecdhe_ecdsa_aes_256_gcm_sha_384,"
++      "ecdhe_rsa_aes_256_gcm_sha_384,"
++      "ecdhe_ecdsa_aes_256_sha,"
++      "ecdhe_ecdsa_aes_128_sha,"
++      "ecdhe_rsa_aes_128_sha,"
++      "ecdhe_rsa_aes_256_sha,"
++      "rsa_aes_128_gcm_sha_256,"
++      "rsa_aes_256_gcm_sha_384,"
++      "rsa_aes_128_sha,"
++      "rsa_aes_256_sha",
++    .http_headers = {
++      "User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:100.0) Gecko/20100101 Firefox/100.0",
++      "Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,*/*;q=0.8",
++      "Accept-Language: en-US,en;q=0.5",
++      "Accept-Encoding: gzip, deflate, br",
++      "Upgrade-Insecure-Requests: 1",
++      "Sec-Fetch-Dest: document",
++      "Sec-Fetch-Mode: navigate",
++      "Sec-Fetch-Site: none",
++      "Sec-Fetch-User: ?1",
++      "TE: Trailers"
++    }
++  },
++  {
++    .target = "ff102",
++    .httpversion = CURL_HTTP_VERSION_2_0,
++    .ssl_version = CURL_SSLVERSION_TLSv1_2 | CURL_SSLVERSION_MAX_DEFAULT,
++    .ciphers =
++      "aes_128_gcm_sha_256,"
++      "chacha20_poly1305_sha_256,"
++      "aes_256_gcm_sha_384,"
++      "ecdhe_ecdsa_aes_128_gcm_sha_256,"
++      "ecdhe_rsa_aes_128_gcm_sha_256,"
++      "ecdhe_ecdsa_chacha20_poly1305_sha_256,"
++      "ecdhe_rsa_chacha20_poly1305_sha_256,"
++      "ecdhe_ecdsa_aes_256_gcm_sha_384,"
++      "ecdhe_rsa_aes_256_gcm_sha_384,"
++      "ecdhe_ecdsa_aes_256_sha,"
++      "ecdhe_ecdsa_aes_128_sha,"
++      "ecdhe_rsa_aes_128_sha,"
++      "ecdhe_rsa_aes_256_sha,"
++      "rsa_aes_128_gcm_sha_256,"
++      "rsa_aes_256_gcm_sha_384,"
++      "rsa_aes_128_sha,"
++      "rsa_aes_256_sha",
++    .http_headers = {
++      "User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:102.0) Gecko/20100101 Firefox/102.0",
++      "Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,*/*;q=0.8",
++      "Accept-Language: en-US,en;q=0.5",
++      "Accept-Encoding: gzip, deflate, br",
++      "Upgrade-Insecure-Requests: 1",
++      "Sec-Fetch-Dest: document",
++      "Sec-Fetch-Mode: navigate",
++      "Sec-Fetch-Site: none",
++      "Sec-Fetch-User: ?1",
++      "TE: Trailers"
++    }
++  },
++  {
++    /* Last one must be NULL. */
++    .target = NULL
++  }
++};
+diff --git a/lib/impersonate.h b/lib/impersonate.h
+new file mode 100644
+index 000000000..964b81f2e
+--- /dev/null
++++ b/lib/impersonate.h
+@@ -0,0 +1,25 @@
++#ifndef HEADER_CURL_IMPERSONATE_H
++#define HEADER_CURL_IMPERSONATE_H
++
++#define IMPERSONATE_MAX_HEADERS 32
++
++/*
++ * curl-impersonate: Options to be set for each supported target browser.
++ */
++struct impersonate_opts {
++  const char *target;
++  int httpversion;
++  int ssl_version;
++  const char *ciphers;
++  const char *http_headers[IMPERSONATE_MAX_HEADERS];
++  /* Other TLS options will come here in the future once they are
++   * configurable through curl_easy_setopt() */
++};
++
++/*
++ * curl-impersonate: Global array of supported browsers and their
++ * impersonation options.
++ */
++extern const struct impersonate_opts impersonations[];
++
++#endif /* HEADER_CURL_IMPERSONATE_H */
 diff --git a/lib/setopt.c b/lib/setopt.c
 index 599ed5d99..1baa48e70 100644
 --- a/lib/setopt.c