OctoPrint upload: ignore certificate revocation checks

Fixes Hostname incorrect While test is positive (Bonjour discovery not
supported for the address field) #1781
(partial fix of #1781)

src/slic3r/Utils/Http.cpp

@@ -491,6 +491,14 @@ Http& Http::form_add_file(const std::string &name, const fs::path &path, const s
 	return *this;
 }
 
+Http& Http::revoke_best_effort(bool set)
+{
+	if(p && set){
+		::curl_easy_setopt(p->curl, CURLOPT_SSL_OPTIONS, CURLSSLOPT_REVOKE_BEST_EFFORT);
+	}
+	return *this;
+}
+
 Http& Http::set_post_body(const fs::path &path)
 {
 	if (p) { p->set_post_body(path);}

src/slic3r/Utils/Http.hpp

@@ -80,6 +80,8 @@ public:
 	// Same as above except also override the file's filename with a custom one
 	Http& form_add_file(const std::string &name, const boost::filesystem::path &path, const std::string &filename);
 
+	Http& revoke_best_effort(bool set);
+
 	// Set the file contents as a POST request body.
 	// The data is used verbatim, it is not additionally encoded in any way.
 	// This can be used for hosts which do not support multipart requests.

src/slic3r/Utils/OctoPrint.cpp

@@ -25,7 +25,8 @@ namespace Slic3r {
 OctoPrint::OctoPrint(DynamicPrintConfig *config) :
     host(config->opt_string("print_host")),
     apikey(config->opt_string("printhost_apikey")),
-    cafile(config->opt_string("printhost_cafile"))
+    cafile(config->opt_string("printhost_cafile")),
+    ignore_checks(config->opt_bool("printhost_ignore_check"))
 {}
 
 const char* OctoPrint::get_name() const { return "OctoPrint"; }
@@ -73,6 +74,9 @@ bool OctoPrint::test(wxString &msg) const
                 msg = "Could not parse server response";
             }
         })
+#ifdef WIN32
+        .revoke_best_effort(ignore_checks)
+#endif
         .perform_sync();
 
     return res;
@@ -137,6 +141,9 @@ bool OctoPrint::upload(PrintHostUpload upload_data, ProgressFn prorgess_fn, Erro
                 res = false;
             }
         })
+#ifdef WIN32
+        .revoke_best_effort(ignore_checks)
+#endif
         .perform_sync();
 
     return res;

src/slic3r/Utils/OctoPrint.hpp

@@ -40,6 +40,7 @@ private:
     std::string host;
     std::string apikey;
     std::string cafile;
+    bool        ignore_checks;
 
     virtual void set_auth(Http &http) const;
     std::string make_url(const std::string &path) const;