check_http: Support HTTP CONNECT methodhw/http-connect

Add the -Y/--http-connect[=<port>] option which tells check_http to use
the HTTP CONNECT method for tunneling an HTTPS connection through a
proxy server.

This is a modified version of a patch provided by Mark Frost in
SourceForge tracker item #2975393, updated for the current check_http
code.  Changes include:

- Let the new --http-connect option imply --ssl.
- Allow for specifying the server port the proxy should connect to.

1 files changed, 1 insertions, 0 deletions

diff --git a/NEWS b/NEWS
index 6c017764..17acce29 100644
--- a/NEWS
+++ b/NEWS
@@ -17,6 +17,7 @@ This file documents the major additions and syntax changes between releases.
         New switch -E/--extended-perfdata for check_http to print additional performance data (Sebastian Nohn)
         New check_http -d option to specify a string to expect within the response headers
         New check_http -J/-K options for client certificate authentication support
+        New check_http -Y/--http-connect[=<port>] option for tunneling SSL connections through proxies
         Add support for executing queries to check_pgsql
         Let check_pgsql accept a UNIX socket directory as hostname
         New check_pgsql -o option to specify additional connection parameters