Added a simple Telegram client

examples/example02.cc

@@ -0,0 +1,100 @@
+/**
+ *
+ * This is a simple Telegram client that can echo a message, piped to its
+ * binary and to set your web hook.
+ *
+ * If you want to use this example to send your web hook to Telegram's
+ * API, change BOT_TOKEN according to your needs and your web server!
+ *
+ * Example:
+ * BOT_TOKEN: Your token given by Telegram's Bot Father!
+ *
+ * To compile do:
+ * g++ -c -o example02.o -I/usr/include/jsoncpp example02.cc
+ * g++ -o example02 example02.o -ltgbotpp
+ *
+ * Run:
+ * echo "Your message" | ./example02  -u <your user id>
+ *
+ * To set your web hook to Telegram's network:
+ * ./example02 -w
+ *
+ * To send a photo to a user or group:
+ * ./example02 -p file:///path/to/pic.jpg -u <user id>
+ */
+
+#include <Telegram/TelegramBot.h>
+
+#include <sstream>
+#include <string>
+
+#include <termios.h>
+#include <unistd.h>
+
+#define WEBHOOK_URL "https://your-domain/cgi-bin/bot.cgi"
+#define BOT_TOKEN "your secret token"
+
+// main function
+int main(int argc, char** argv) {
+
+	// Process options
+	std::string user_id = ""; // ID of the receiving user
+	std::string filename = ""; // File name of file to  be sent
+
+	Telegram::TelegramBot tg(BOT_TOKEN);
+
+#ifdef __arm__
+	int c;
+#else
+	char c;
+#endif
+
+	while ((c = getopt(argc, argv, "wu:p:")) != -1) {
+		switch(c) {
+			case 'u':
+				user_id = (std::string)optarg;
+				break;
+			case 'w':
+				tg.setWebhook(WEBHOOK_URL);
+				return 0;
+				break; // Never reached
+			case 'p':
+				filename = (std::string)optarg;
+				break;
+			case ':':
+				std::cerr << optopt << " without argument" << std::endl;
+				break;
+		}
+	}
+
+	if (user_id == "") {
+		std::cerr << "No user ID given!" << std::endl;
+		return 1;
+	}
+
+	if (filename != "") {
+		// Currently only photos are supported
+		tg.sendPhoto(filename, user_id);
+		return 0;
+	}
+
+	// Read from stdin
+	struct termios t;
+	std::string s = "";
+
+	if (tcgetattr(STDIN_FILENO, &t) < 0) {
+		// If we have a text piped in, read from std::cin
+		while(std::cin) {
+			std::string line;
+			std::getline(std::cin, line);
+			s = s + line + "\n";
+		}
+		s.erase(s.end()-1);
+	}
+
+	if (s != "") {
+		tg.sendMessage(s, user_id); // Send the message to the user
+	}
+
+	return 0;
+}