First Commit

1 files changed, 141 insertions, 0 deletions

diff --git a/example.c b/example.c
new file mode 100644
index 0000000..fb05d98
--- /dev/null
+++ b/example.c
@@ -0,0 +1,141 @@
+#define TG_DEBUG
+#define TG_ENABLE_PTHREAD
+
+#include "easy-tg.h"
+#include <stdio.h>
+#include <unistd.h>
+#include <string.h>
+
+/* In this example we are not closing TDLib properly. In a real-world program, you need to call tg_close() to make a close request to TDLib (any thread is OK), and wait for the TG_CLOSED response. */
+
+static void read_input(const char *prompt, char *buf, unsigned int len)
+{
+	printf("%s", prompt);
+	ssize_t size = read(0, buf, len + 1);
+	if(size >= 1) buf[size - 1] = '\0';
+	printf("Read: %s\n", buf);
+}
+
+static void run()
+{
+	/* In each loop, the action our application needs to take is returned via return code.
+	 * Other data, such as current update type and the whole JSON response, are stored in registers.
+	 * There are nine registers:
+	 * int tg_errno: In case of error, it will store the error code.
+	 * const char *tg_update_type: Always stores the parsed type of update.
+	 * json_object *tg_update: Always stores the whole tokenized JSON update.
+	 * void *tg_reg1: Optional data field.
+	 * void *tg_reg2: Optional data field.
+	 * void *tg_reg3: Optional data field.
+	 * void *tg_reg4: Optional data field.
+	 * void *tg_reg5: Optional data field.
+	 * void *tg_reg6: Optional data field.
+	 * Each register has the lifetime from the end of tg_loop() to the next call of tg_loop().
+	 * After calling tg_loop() for the next time, all memory will be released and the registers will be reset to default values, which are 0 for int and NULL for pointers.
+	 */
+	printf("%s\n", tg_update_type);
+}
+
+int main(int argc, char **argv)
+{
+	int r = 0;
+	r = tg_init();
+	if(r) goto cleanup; /* Fetal errors encountered. */
+	while(1)
+	{
+		switch(tg_loop())
+		{
+			case TG_IGNORE: /* Invalid response from TDLib. Just ignore it. */
+				break;
+			case TG_RUN: /* Non-login update received. Run our custom function. */
+				run();
+				break;
+			case TG_CLOSED: /* TDLib is shutting down. We have nothing to do except releasing resources. */
+				goto destroy;
+			case TG_CLOSING: /* TDLib is closing. Currently we don't need to do nothing. */
+			case TG_LOGGING_OUT: /* The account is logging out. No need for now. */
+				break;
+			case TG_LOGGED_IN: /* Login ready. */
+				printf("You are logged in!\n");
+				break;
+			case TG_LOGIN_PHONE: /* We need to provide the phone number to login. */
+				char phone[20];
+				read_input("Phone number: ", phone, 19);
+				tg_login_phone(phone);
+				break;
+			case TG_LOGIN_CODE: /* We need to provide the verification code. */
+				char code[7];
+				read_input("Verification code: ", code, 6);
+				tg_login_code(code);
+				break;
+			case TG_LOGIN_ENC: /* During initialization, TDLib is asking us for database encryption key. */
+				tg_login_enc_key(""); /* Just leave it empty for now. */
+				break;
+			case TG_LOGIN_QR: /* QR login. Currently not supported in the demo. */
+				/* The QR link is stored in register 1. */
+				/* generate_qr((char*)tg_reg1); */
+				printf("QR login not supported.\n");
+				break;
+			case TG_LOGIN_PW: /* We need to type the password. */
+				char pass[257];
+				read_input("Password: ", pass, 256);
+				tg_login_pass(pass);
+				break;
+			case TG_LOGIN_REG: /* The phone number is verified but unknown. We need fill in the registration form. In this case, we will ask the user to register in the official client instead. */
+				printf("Your phone number is not known.\n");
+				break;
+			case TG_PARAMS: /* TDLib is not been setup and is asking you for parameters. */
+				tg_set_params(
+					true, /* Use test datacenter */
+					"/tmp/td", /* Database directory */
+					NULL, /* Files directory */
+					false, /* Use files database */
+					false, /* Use message database */
+					false, /* Use chat info database */
+					false, /* Support secret chats */
+					API_ID, /* API ID */
+					API_HASH, /* API Hash */
+					"en", /* System language code */
+					"Desktop", /* Device model */
+					"Windoge 114.514", /* System version */
+					"Moe Bot", /* Application version */
+					false, /* Enable storage optimizer */
+					true /* Ignore file names */
+				);
+				break;
+			case TG_ERROR: /* TDLib returned an error. */
+				/* Error code is stored in tg_errno;
+				 * Request extra (ID) is stored in register 1;
+				 * Error message is stored in register 2.
+				 */
+				/* Built-in request extras */
+				if(!strcmp(TG_REQ_SET_PARAMS, tg_reg1))
+				{
+					printf("Invalid TDLib parameters! %d (%s)\n", tg_errno, tg_reg2);
+				} else if(!strcmp(TG_REQ_LOGIN_PHONE, tg_reg1))
+				{
+					printf("Invalid phone number! %d (%s)\n", tg_errno, tg_reg2);
+				} else if(!strcmp(TG_REQ_LOGIN_PASS, tg_reg1))
+				{
+					printf("Invalid password! %d (%s)\n", tg_errno, tg_reg2);
+				} else
+				{
+					printf("Invalid request: %s! %d (%s)\n", tg_reg1, tg_errno, tg_reg2);
+				}
+				break;
+			case TG_SYSERR: /* Easy-TG encountered an error. */
+				/* Error code is stored in tg_errno. */
+				printf("Fetal: %d\n", tg_errno);
+				break;
+			default:
+				printf("???\n");
+				break;
+		}
+	}
+	goto destroy;
+destroy:
+	tg_destroy();
+	goto cleanup;
+cleanup:
+	return r;
+}