Commit d4f39dcf9904c18f585ab6e2207146d2d86933d2

URL encoding seems to be working.


1	1	CC = gcc
2	2	CFLAGS = -Wall -Wextra -std=c99 -pedantic
3	3	LDFLAGS = -lcurl -lssl -lcrypto -lrt -lssl -lcrypto -ldl -lz -lz
4		OBJECTS = main.o check_auth.o update_status.o get_friends_timeline.o write_preferences.o get_credentials.o access_url.o
	4	OBJECTS = main.o check_auth.o update_status.o get_friends_timeline.o write_preferences.o get_credentials.o access_url.o url_encode.o
5	5
6	6	timeline:
7	7	$(CC) $(CFLAGS) -o get_friends_timeline $(LDFLAGS) get_friends_timeline.c


		1	#include <stdio.h>
		2	#include <stdlib.h>
		3	#include "../url_encode.h"
		4
		5	int main(void) {
		6	char *test_thingy = "Hello, Senõrita.";
		7	char *result = url_encode(test_thingy);
		8	puts(result);
		9	free(result);
		10	return 0;
		11	}


4	4	#include "update_status.h"
5	5	#include "access_url.h"
6	6	#include "get_credentials.h"
	7	#include "url_encode.h"
7	8	#include "constants.h"
8	9
9	10	int update_status(char *message) {
10		char *status_string;
11		char *status_prefix = STATUS_PREFIX;
12		status_string = (char*) calloc(strlen(message) + strlen(status_prefix), sizeof(char));
	11	const char *status_prefix = STATUS_PREFIX;
	12	char *encoded = url_encode(message);
	13	char *status_string = calloc(strlen(encoded) + strlen(status_prefix) + 1, sizeof(char));
13	14	strncat(status_string, status_prefix, STATUS_PREFIX_LENGTH);
14		strncat(status_string, message, 300);
	15	strncat(status_string, encoded, 420 - STATUS_PREFIX_LENGTH);
15	16	char username_password[USER_PASSWORD_SIZE];
16	17	get_credentials(username_password, USER_PASSWORD_SIZE + 1);
17	18	access_url(username_password, "http://twitter.com/statuses/update.xml", status_string, DO_POST);
18	19	free(status_string);
	20	free (encoded);
19	21	printf("Updating status...\n");
20	22
21	23	return 0;


		1	#include <string.h>
		2	#include <stdlib.h>
		3	#include <stdio.h>
		4	#include "url_encode.h"
		5
		6	/* Should be correct by RFC 3986,
		7	* http://www.ietf.org/rfc/rfc3986.txt
		8	* section 2.3 and 2.4.
		9	*/
		10	static int needs_replace(char c) {
		11	if (
		12	('a' <= c && c <= 'z')
		13	\|\| ('A' <= c && c <= 'z')
		14	\|\| ('0' <= c && c <= '9')
		15	\|\| ( c == '-')
		16	\|\| (c == '.')
		17	\|\| (c == '_')
		18	\|\| (c == '~')
		19	) {
		20	return 0;
		21	}
		22	else {
		23	return 1;
		24	}
		25	}
		26
		27	static char zero_to_f(char c) {
		28	const char *hex = "0123456789abcdef";
		29	return hex[c & 15]; /* Needed for safety */
		30	}
		31
		32	char url_encode(char not_replaced) {
		33	char replaced = malloc(strlen(not_replaced) 3 + 1);
		34	char *working_buf = replaced;
		35
		36	while (*not_replaced) {
		37	if (needs_replace(*not_replaced)) {
		38	*working_buf++ = '%';
		39	working_buf++ = zero_to_f(not_replaced >> 4);
		40	working_buf++ = zero_to_f(not_replaced & 15);
		41	}
		42	else {
		43	working_buf++ = not_replaced;
		44	}
		45
		46	not_replaced++;
		47	}
		48	*working_buf++ = '\0';
		49	return replaced;
		50	}