From ccffc685c412183b56f822438da5cc8a575d757e Mon Sep 17 00:00:00 2001
From: Gluzskiy Alexandr <sss@sss.chaoslab.ru>
Date: Thu, 10 Sep 2015 00:15:07 +0300
Subject: client-qt: 	handle disconnect 	basic downloads model (still
 draft with unimplemented basic features like dynamic columns count, dynamic
 columns will be implemented next) 	basic handler for download list (in
 theory it's already working now, but untested) 	basic modules info
 handler (just store data in memory for now, all basic features still
 unimplemented, download info ui templates generation will be implemented next
 here) 	basic core info handler (just store data in memory for now, core
 settings and core info ui will be implemented next here.)

server:
	api:
		added client metadata manipulation api for  downloader modules
		added metadata map to download structure in downloader modules
	curl_downloader:
		implemented new api's
---
 server/modules/downloaders/curl/main.cpp | 58 ++++++++++++++++++++++++++++++++
 server/modules/downloaders/curl/main.h   |  7 ++++
 2 files changed, 65 insertions(+)

(limited to 'server/modules')

diff --git a/server/modules/downloaders/curl/main.cpp b/server/modules/downloaders/curl/main.cpp
index b3a2f36..f3da19e 100644
--- a/server/modules/downloaders/curl/main.cpp
+++ b/server/modules/downloaders/curl/main.cpp
@@ -166,6 +166,64 @@ download_s downloader::get_download(int download_id, std::map<int, std::string>
 	return d;
 }
 
+std::string compute_var_name(int download_id, std::string setting_name)
+{
+	std::string var_name = "download_";
+	char id_s[64];
+	snprintf(id_s, 63, "%d", download_id);
+	var_name += id_s;
+	var_name += "_";
+	var_name += setting_name;
+	return var_name;
+}
+
+bool downloader::metadata_set(int download_id, std::map<std::string, std::string> metadata)
+{
+	downloads[download_id].metadata = metadata;
+    for(auto i : downloads[download_id].metadata)
+		api->metadata_set(this, compute_var_name(download_id, i.first), std::vector<char>(i.second.begin(), i.second.end()));
+	return true;
+}
+
+bool downloader::metadata_update(int download_id, std::map<std::string, std::string> metadata)
+{
+	for(auto i : metadata)
+		downloads[download_id].metadata[i.first] = i.second;
+    for(auto i : downloads[download_id].metadata)
+		api->metadata_set(this, compute_var_name(download_id, i.first), std::vector<char>(i.second.begin(), i.second.end()));
+	return true;
+}
+
+bool downloader::metadata_drop(int download_id, std::string var)
+{
+	if(!var.empty())
+	{
+		downloads[download_id].metadata.erase(var);
+		api->metadata_remove(this, compute_var_name(download_id, var));
+	}
+	else
+	{
+		for(auto i : downloads[download_id].metadata)
+			api->metadata_remove(this, compute_var_name(download_id, i.first));
+		downloads[download_id].metadata.clear();
+	}
+	return true;
+}
+std::map<std::string, std::string> downloader::metadata_get(int download_id)
+{
+	return downloads[download_id].metadata;
+}
+
+std::string downloader::metadata_get(int download_id, std::string var)
+{
+	auto i = downloads[download_id].metadata.find(var);
+	if(i != downloads[download_id].metadata.end())
+		return i->second;
+	return std::string();
+}
+
+
+
 extern "C" module_downloader* udm_downloader_module_load()
 {
 	return new downloader;
diff --git a/server/modules/downloaders/curl/main.h b/server/modules/downloaders/curl/main.h
index 4c4cbe9..f5e589b 100644
--- a/server/modules/downloaders/curl/main.h
+++ b/server/modules/downloaders/curl/main.h
@@ -48,6 +48,13 @@ public:
 		bool execute_action_on_download(int download_id, int action_id); //execute module defined action on download, by id received via add_download
 		std::list<download_s> get_downloads(std::map<int, std::string> params = std::map<int, std::string>()); //this function must return list of downloads, additional options may be passed via params map
 		download_s get_download(int download_id, std::map<int, std::string> params = std::map<int, std::string>()); //same as above, except this one is for single download, not a complete list
+		//downloader metadata manipulations
+		bool metadata_set(int download_id, std::map<std::string, std::string> metadata); //replace download metadata with provided one
+		bool metadata_update(int download_id, std::map<std::string, std::string> metadata); //updated matching metadata entries, create non existent
+		bool metadata_drop(int download_id, std::string var = std::string()); //remove all metadata if no variable specified, otherwise delete specified variable
+		std::map<std::string, std::string> metadata_get(int download_id); //get download metadata
+		std::string metadata_get(int download_id, std::string var); //get value of specified metadata variable
+
 private:
 		void on_modules_loaded();
 		std::map<int, my_download> downloads; //map of id, download
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