Implemented responses

src/responses.c

@@ -16,29 +16,87 @@
    along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 #include <stdio.h>
+#include <stdlib.h>
+#include <stdarg.h>
 #include <string.h>
 #include <unistd.h>
 
 #include <responses.h>
 
-static int sendConn(int fd, char *str) {
-	size_t len = strlen(str);
-	if (write(fd, str, len))
+static int sendConnection(Connection *conn, char *format, ...) {
+	va_list ap;
+	va_start(ap, format);
+	int len = vsnprintf(NULL, 0, format, ap);
+	char *data = malloc(len + 1);
+	if (data == NULL)
 		return 1;
+
+	va_end(ap);
+	va_start(ap, format);
+
+	vsnprintf(data, len + 1, format, ap);
+	write(conn->fd, data, len);
+	free(data);
 	return 0;
 }
 
+static void readResponse(Connection *conn, char *path) {
+	FILE *file = fopen(path, "r");
+	if (file == NULL) {
+		sendConnection(conn,
+			"HTTP/1.1 403 Forbidden\r\n"
+			"Content-Type: text/html; charset=UTF-8\r\n"
+			"Server: swebs/0.1\r\n"
+			"Content-Length: 21\r\n"
+			"\r\n"
+			"<h1>Invalid page</h1>\n"
+		);
+		return;
+	}
+	fseek(file, 0, SEEK_END);
+	long len = ftell(file);
+	char *data = malloc(len);
+	if (data == NULL)
+		return;
+	fseek(file, 0, SEEK_SET);
+	fread(data, 1, len, file);
+	fclose(file);
+	sendConnection(conn,
+		"HTTP/1.1 200 OK\r\n"
+		"Content-Type: text/html; charset=UTF-8\r\n"
+		"Server: swebs/0.1\r\n"
+		"Content-Length: %ld\r\n"
+		"\r\n", len
+	);
+	write(conn->fd, data, len);
+	free(data);
+}
+
 int sendResponse(Connection *conn, Sitefile *site) {
-	printf("test %d\n", site->size);
+	if (conn->path == NULL)
+		return 1;
 	for (int i = 0; i < site->size; i++) {
-		printf("%s %s\n", site->content[i].path, site->content[i].arg);
+		if (site->content[i].respondto != conn->type)
+			continue;
+		if (strcmp(conn->path, site->content[i].path) == 0) {
+			switch (site->content[i].command) {
+				case READ:
+					readResponse(conn, site->content[i].arg);
+					goto end;
+				default:
+					return 1;
+			}
+		}
 	}
-
-	sendConn(conn->fd, "HTTP/1.1 200 OK\r\n");
-	sendConn(conn->fd, "Content-Type: text/html\r\n");
-	sendConn(conn->fd, "Content-Length: 16\r\n");
-	sendConn(conn->fd, "\r\n");
-	sendConn(conn->fd, "<p>Hi there!</p>");
+	sendConnection(conn,
+		"HTTP/1.1 404 Not Found\r\n"
+		"Content-Type: text/html; charset=UTF-8\r\n"
+		"Server: swebs/0.1\r\n"
+		"Content-Length: 24\r\n"
+		"\r\n"
+		"<h1>File not found</h1>\n"
+	);
+end:
 	resetConnection(conn);
 	return 0;
 }