Add application image

assets/apps_linux.json

@@ -13,7 +13,8 @@
 		"name":"Steam BigPicture",
 
 		"output":"steam.txt",
-		"detached":["setsid steam steam://open/bigpicture"]
+		"detached":["setsid steam steam://open/bigpicture"],
+		"image-path":"./asset/steam.png"
 	}
 	]
 }

assets/apps_windows.json

@@ -7,7 +7,8 @@
 		"name":"Steam BigPicture",
 
 		"output":"steam.txt",
-		"detached":["steam steam://open/bigpicture"]
+		"detached":["steam steam://open/bigpicture"],
+		"image_path":"./asset/steam.png"
 	}
 	]
 }

assets/web/apps.html

@@ -166,6 +166,22 @@ <h1>Applications</h1>
           If not set, Sunshine will default to the parent directory of the command
         </div>
       </div>
+      <!-- Image path -->
+      <div class="mb-3">
+        <label for="appImagePath" class="form-label">Image</label>
+        <input
+          type="text"
+          class="form-control monospace"
+          id="appImagePath"
+          aria-describedby="appImagePathHelp"
+          v-model="editForm['image-path']"
+        />
+        <div id="appImagePathHelp" class="form-text">
+          Application icon/picture/image path that will be sent to client.
+          Only full path are working, so no relative path. Image must be a PNG.
+          If not set, Sunshine will send default box image.
+        </div>
+      </div>
       <!--buttons-->
       <div class="d-flex">
         <button @click="showEditForm = false" class="btn btn-secondary m-2">

sunshine/nvhttp.cpp

@@ -761,11 +761,17 @@ void cancel(resp_https_t response, req_https_t request) {
   }
 }
 
+
 void appasset(resp_https_t response, req_https_t request) {
   print_req<SimpleWeb::HTTPS>(request);
 
-  std::ifstream in(SUNSHINE_ASSETS_DIR "/box.png");
-  response->write(SimpleWeb::StatusCode::success_ok, in);
+  auto args = request->parse_query_string();
+  auto app_image = proc::proc.get_app_image(util::from_view(args.at("appid")));
+
+  std::ifstream in(app_image, std::ios::binary);
+  SimpleWeb::CaseInsensitiveMultimap headers;
+  headers.emplace("Content-Type", "image/png");
+  response->write(SimpleWeb::StatusCode::success_ok, in, headers);
   response->close_connection_after_response = true;
 }
 

sunshine/process.cpp

@@ -8,10 +8,12 @@
 
 #include <string>
 #include <vector>
+#include <filesystem>
 
 #include <boost/property_tree/json_parser.hpp>
 #include <boost/property_tree/ptree.hpp>
 #include <boost/filesystem.hpp>
+#include <boost/algorithm/string.hpp>
 
 #include "main.h"
 #include "utility.h"
@@ -189,6 +191,33 @@ std::vector<ctx_t> &proc_t::get_apps() {
   return _apps;
 }
 
+/// Gets application image from application list.
+/// Returns default image if image configuration is not set.
+/// returns http content-type header compatible image type
+std::string proc_t::get_app_image(int app_id) {
+  auto app_index = app_id -1;
+  if(app_index < 0 || app_index >= _apps.size()) {
+    BOOST_LOG(error) << "Couldn't find app with ID ["sv << app_id << ']';
+    return SUNSHINE_ASSETS_DIR "/box.png";
+  }
+
+  auto app_image_path = _apps[app_index].image_path;
+  if (app_image_path.empty()) {
+    return SUNSHINE_ASSETS_DIR "/box.png";
+  }
+
+  auto image_extension = std::filesystem::path(app_image_path).extension().string();
+  boost::to_lower(image_extension);
+
+  std::error_code code;
+  if (!std::filesystem::exists(app_image_path, code) || image_extension != "png") {
+    return SUNSHINE_ASSETS_DIR "/box.png";
+  }
+
+  // return only "content-type" http header compatible image type.
+  return app_image_path;
+}
+
 proc_t::~proc_t() {
   terminate();
 }
@@ -279,6 +308,7 @@ std::optional<proc::proc_t> parse(const std::string &file_name) {
       auto output             = app_node.get_optional<std::string>("output"s);
       auto name               = parse_env_val(this_env, app_node.get<std::string>("name"s));
       auto cmd                = app_node.get_optional<std::string>("cmd"s);
+      auto image_path         = app_node.get_optional<std::string>("image-path"s);
       auto working_dir        = app_node.get_optional<std::string>("working-dir"s);
 
       std::vector<proc::cmd_t> prep_cmds;
@@ -321,6 +351,10 @@ std::optional<proc::proc_t> parse(const std::string &file_name) {
         ctx.working_dir = parse_env_val(this_env, *working_dir);
       }
 
+      if (image_path) {
+        ctx.image_path = parse_env_val(this_env, *image_path);
+      }
+
       ctx.name      = std::move(name);
       ctx.prep_cmds = std::move(prep_cmds);
       ctx.detached  = std::move(detached);

sunshine/process.h

@@ -55,6 +55,7 @@ struct ctx_t {
   std::string cmd;
   std::string working_dir;
   std::string output;
+  std::string image_path;
 };
 
 class proc_t {
@@ -78,6 +79,7 @@ class proc_t {
 
   const std::vector<ctx_t> &get_apps() const;
   std::vector<ctx_t> &get_apps();
+  std::string get_app_image(int app_id);
 
   void terminate();