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/*
* blogc: A blog compiler.
* Copyright (C) 2014-2019 Rafael G. Martins <rafael@rafaelmartins.eng.br>
*
* This program can be distributed under the terms of the BSD License.
* See the file LICENSE.
*/
#include <stdbool.h>
#include <string.h>
#include <unistd.h>
#include <squareball.h>
#include "httpd-utils.h"
char*
br_readline(int socket)
{
sb_string_t *rv = sb_string_new();
char buffer[READLINE_BUFFER_SIZE];
ssize_t len;
bool end = false;
while ((len = read(socket, buffer, READLINE_BUFFER_SIZE)) > 0) {
if (!end) {
for (ssize_t i = 0; i < len; i++) {
if (buffer[i] == '\r' || buffer[i] == '\n' || buffer[i] == '\0') {
// we finished "recording", but still need to exhaust
// request data.
end = true;
break;
}
sb_string_append_c(rv, buffer[i]);
}
}
if (len < READLINE_BUFFER_SIZE) {
break;
}
}
return sb_string_free(rv, false);
}
int
br_hextoi(const char c)
{
if (c >= '0' && c <= '9')
return c - '0';
if (c >= 'a' && c <= 'f')
return c - 'a' + 10;
if (c >= 'A' && c <= 'F')
return c - 'A' + 10;
return -1;
}
char*
br_urldecode(const char *str)
{
sb_string_t *rv = sb_string_new();
for (size_t i = 0; i < strlen(str); i++) {
switch (str[i]) {
case '%':
if (i + 2 < strlen(str)) {
int p1 = br_hextoi(str[i + 1]) * 16;
int p2 = br_hextoi(str[i + 2]);
if (p1 >= 0 && p2 >= 0) {
sb_string_append_c(rv, p1 + p2);
i += 2;
continue;
}
}
sb_string_append_c(rv, '%');
break;
case '+':
sb_string_append_c(rv, ' ');
break;
default:
sb_string_append_c(rv, str[i]);
}
}
return sb_string_free(rv, false);
}
const char*
br_get_extension(const char *filename)
{
const char *ext = NULL;
size_t i;
for (i = strlen(filename); i > 0; i--) {
if (filename[i] == '.') {
ext = filename + i + 1;
break;
}
if ((filename[i] == '/') || (filename[i] == '\\'))
return NULL;
}
if (i == 0)
return NULL;
return ext;
}
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