From 09a2210c477932c8df40ff820414b3a9bbec10fb Mon Sep 17 00:00:00 2001
From: Rasp8e <bogdan.balamat@ext.ec.europa.eu>
Date: Tue, 17 Oct 2017 15:19:43 +0200
Subject: Adding Proxy-Authorization and extra headers in the case of
 connection through PROXY to HTTPS


diff --git a/plugins/check_http.c b/plugins/check_http.c
index 86a36c2..2e393eb 100644
--- a/plugins/check_http.c
+++ b/plugins/check_http.c
@@ -916,6 +916,21 @@ check_http (void)
 
     if (verbose) printf ("Entering CONNECT tunnel mode with proxy %s:%d to dst %s:%d\n", server_address, server_port, host_name, HTTPS_PORT);
     asprintf (&buf, "%s %s:%d HTTP/1.1\r\n%s\r\n", http_method, host_name, HTTPS_PORT, user_agent);
+    if (strlen(proxy_auth)) {
+      base64_encode_alloc (proxy_auth, strlen (proxy_auth), &auth);
+      xasprintf (&buf, "%sProxy-Authorization: Basic %s\r\n", buf, auth);
+    }
+    /* optionally send any other header tag */
+    if (http_opt_headers_count) {
+      for (i = 0; i < http_opt_headers_count ; i++) {
+        if (force_host_header != http_opt_headers[i]) {
+          xasprintf (&buf, "%s%s\r\n", buf, http_opt_headers[i]);
+        }
+      }
+      /* This cannot be free'd here because a redirection will then try to access this and segfault */
+      /* Covered in a testcase in tests/check_http.t */
+      /* free(http_opt_headers); */
+    }
     asprintf (&buf, "%sProxy-Connection: keep-alive\r\n", buf);
     asprintf (&buf, "%sHost: %s\r\n", buf, host_name);
     /* we finished our request, send empty line with CRLF */
-- 
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