File U_Add-xvnc-args-configuration-option.patch of Package vncmanager.23136

From 3bd1a087aa604545f8400bcdc1df37a00d7a4aa4 Mon Sep 17 00:00:00 2001
From: Michal Srb <michalsrb@gmail.com>
Date: Fri, 11 Aug 2017 14:58:33 +0200
Subject: [PATCH] Add xvnc-args configuration option.

It allows passing additional arguments to Xvnc.
---
 Configuration.cpp | 20 +++++++++++++++++++-
 Configuration.h   |  7 +++++++
 Xvnc.cpp          |  9 +++++++++
 vncmanager.conf   |  6 ++++++
 4 files changed, 41 insertions(+), 1 deletion(-)

diff --git a/Configuration.cpp b/Configuration.cpp
index 9d7f932..10f3f1f 100644
--- a/Configuration.cpp
+++ b/Configuration.cpp
@@ -64,6 +64,22 @@ static void validate(boost::any &v, std::vector<std::string> const &tokens, VeNC
         throw po::invalid_option_value("No security type configured.");
 }
 
+static void validate(boost::any &v, std::vector<std::string> const &tokens, XvncArgList *target_type, int /* boost template trickery */)
+{
+    if (v.empty())
+        v = boost::any(XvncArgList());
+
+    XvncArgList *p = boost::any_cast<XvncArgList>(&v);
+
+    boost::escaped_list_separator<char> sep('\\', ' ', '\"');
+    for (const std::string & token : tokens) {
+        boost::tokenizer<boost::escaped_list_separator<char>> tok(token, sep);
+        for (auto str : tok) {
+            p->values.push_back(str);
+        }
+    }
+}
+
 bool Configuration::parse(int argc, char *argv[], const char *config)
 {
     VeNCryptSubtypesList defaultSecurity = { VeNCryptSubtype::TLSNone, VeNCryptSubtype::X509None, VeNCryptSubtype::None };
@@ -92,7 +108,9 @@ bool Configuration::parse(int argc, char *argv[], const char *config)
         ("xvnc",    po::value<std::string>()->default_value("/usr/bin/Xvnc"),               "path to Xvnc executable")
         ("greeter", po::value<std::string>()->default_value("/usr/bin/vncmanager-greeter"), "path to Greeter executable")
         ("xauth",   po::value<std::string>()->default_value("/usr/bin/xauth"),              "path to xauth executable")
-        ("rundir",  po::value<std::string>()->default_value("/run/vncmanager"),             "path to run directory");
+        ("rundir",  po::value<std::string>()->default_value("/run/vncmanager"),             "path to run directory")
+
+        ("xvnc-args", po::value<XvncArgList>()->multitoken(), "Additional arguments that will be passed to Xvnc. Take care to not overwrite arguments set by vncmanager.");
 
     po::options_description tls("TLS");
     tls.add_options()
diff --git a/Configuration.h b/Configuration.h
index 59cc46d..ca7d167 100644
--- a/Configuration.h
+++ b/Configuration.h
@@ -29,6 +29,13 @@
 
 #include <boost/program_options.hpp>
 
+
+/// Wrapper struct to allow custom parsing
+struct XvncArgList
+{
+    std::vector<std::string> values;
+};
+
 class Configuration
 {
 public:
diff --git a/Xvnc.cpp b/Xvnc.cpp
index d8709cc..4c26c68 100644
--- a/Xvnc.cpp
+++ b/Xvnc.cpp
@@ -246,6 +246,15 @@ void Xvnc::execute(bool queryDisplayManager)
             argv.push_back("-desktop");
             argv.push_back("VNC manager");
         }
+
+        XvncArgList xvnc_args;
+        if (!Configuration::options["xvnc-args"].empty()) {
+            xvnc_args = Configuration::options["xvnc-args"].as<XvncArgList>();
+        }
+        for (auto &xvnc_arg : xvnc_args.values) {
+            argv.push_back(xvnc_arg.c_str());
+        }
+
         argv.push_back(nullptr);
 
         // Execute
diff --git a/vncmanager.conf b/vncmanager.conf
index 4b53673..33ecef9 100644
--- a/vncmanager.conf
+++ b/vncmanager.conf
@@ -89,3 +89,9 @@
 # Default: /run/vncmanager
 #
 # rundir = /run/vncmanager
+
+# Additional arguments that will be passed to Xvnc.
+# Take care to not overwrite arguments set by vncmanager.
+#
+# Default:
+# xvnc-args =
-- 
2.12.3