Parse cookies

FossilOrigin-Name: a70c1b3c96720d7db399598e81e2cb87d1baae3f676926c511fa5b4f714c3555
This commit is contained in:
me@ow.nekobit.net 2022-02-12 02:20:29 +00:00
parent e831e9e810
commit 90e5ac7259
9 changed files with 155 additions and 12 deletions

View file

View file

@ -20,17 +20,37 @@
#include <stdlib.h>
#include "base_page.h"
#include "easprintf.h"
#include "cookie.h"
// Files
#include "../static/index.chtml"
void render_base_page(struct base_page* page)
{
char* cookie = getenv("HTTP_COOKIE");
enum l10n_locale locale = page->locale;
char* cookie_read = cookie;
struct http_cookie_info info = { 0 };
/*while (1)
{
cookie_read = parse_cookies(cookie_read, &info);
if (!(info.key && info.val)) break;
if (strcmp(info.key, "theme") == 0)
{
g_config.theme = info.val;
}
if (!cookie_read) break;
}*/
char* data;
int len = easprintf(&data, data_index_html,
L10N[locale][L10N_APP_NAME],
g_config.theme,
g_config.theme,
L10N[locale][L10N_APP_NAME],
L10N[locale][L10N_SEARCH_PLACEHOLDER],
L10N[locale][L10N_SEARCH_BUTTON],

View file

@ -19,6 +19,7 @@
#ifndef BASE_PAGE_H
#define BASE_PAGE_H
#include "l10n.h"
#include "local_config.h"
struct base_page
{

74
src/cookie.c Normal file
View file

@ -0,0 +1,74 @@
/*
* RatFE - Lightweight frontend for Pleroma
* Copyright (C) 2022 Nekobit
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#include <stdio.h>
#include "cookie.h"
enum cookie_state
{
STATE_C_NEUTRAL,
STATE_C_STARTSP,
STATE_K_START,
STATE_V_START,
};
char* parse_cookies(char* begin, struct http_cookie_info* info)
{
int keydone = 0;
enum cookie_state state = STATE_C_STARTSP;
int end = 0;
size_t val_s = 0;
for (; *begin != ';' && *begin != '\0'; ++begin)
{
switch (*begin)
{
case '=':
if (state == STATE_K_START) keydone = 1;
state = STATE_C_STARTSP;
*begin = '\0'; // Null ptr
break;
case ' ':
// longkeyval = res;
// ^ ^
if (state == STATE_C_STARTSP ||
state == STATE_K_START)
break;
// fall
default:
if (state == STATE_C_STARTSP)
{
if (keydone) info->val = begin;
else info->key = begin;
state = keydone ? STATE_V_START : STATE_K_START;
}
if (keydone) ++val_s;
}
}
// Which character did we stop at?
if (*begin == '\0')
end = 1;
else if (*begin == ';')
*begin = '\0';
// The val length may be large, so strlen can waste time
info->val_len = val_s;
return end ? NULL : begin+1;
}

View file

@ -18,5 +18,16 @@
#ifndef COOKIE_H
#define COOKIE_H
#include <stddef.h>
struct http_cookie_info
{
char* key;
char* val;
size_t val_len; // Val may be large, like CSS property
};
// Stupidly fast simple cookie parser
char* parse_cookies(char* begin, struct http_cookie_info* info);
#endif // COOKIE_H

29
src/local_config.h Normal file
View file

@ -0,0 +1,29 @@
/*
* RatFE - Lightweight frontend for Pleroma
* Copyright (C) 2022 Nekobit
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#ifndef LOCAL_CONFIG_H
#define LOCAL_CONFIG_H
struct local_config
{
char* theme;
};
static struct local_config g_config;
#endif // LOCAL_CONFIG_H

View file

@ -24,6 +24,7 @@
#include "page_config.h"
#include "path.h"
#include "account.h"
#include "local_config.h"
int main(void)
{
@ -38,6 +39,9 @@ int main(void)
api.url = config_instance_url;
mastodont_init(&api);
// Config defaults
g_config.theme = "ratfe20";
/*******************
* Path handling *
******************/

View file

@ -24,6 +24,8 @@
#include "../config.h"
#include "page_config.h"
#include "query.h"
#include "cookie.h"
#include "local_config.h"
// Pages
#include "../static/index.chtml"
@ -33,9 +35,8 @@ void content_config(mastodont_t* api, char** data, size_t size)
{
(void)api; // No need to use this
char* request_method = getenv("REQUEST_METHOD");
char* post_query, * p_query_read;
char* post_query = NULL, * p_query_read;
struct http_query_info info;
// Handle POST
if (request_method && (strcmp("POST", request_method) == 0))
@ -57,15 +58,16 @@ void content_config(mastodont_t* api, char** data, size_t size)
while (1)
{
p_query_read = parse_query(p_query_read, &info);
printf("%.*s,", (int)info.val_len, info.val);
if (!(info.key && info.val)) break;
if (strcmp(info.key, "theme") == 0)
{
g_config.theme = info.val;
printf("Set-Cookie: %s=%s; HttpOnly; SameSite=Strict;",
"theme", info.val);
}
if (p_query_read == NULL)
break;
if (!p_query_read) break;
}
// Cleanup
free(post_query);
}
struct base_page b = {
@ -75,6 +77,7 @@ void content_config(mastodont_t* api, char** data, size_t size)
};
render_base_page(&b);
printf(data_index_html, config_canonical_name, data_config_html);
// Cleanup
if (post_query) free(post_query);
}

View file

@ -4,10 +4,11 @@
<meta charset="utf-8">
<title>%s</title>
<link rel="icon" type="image/png" href="/favicon.png">
<link rel="stylesheet" type="text/css" href="/ratfe.css">
<link rel="stylesheet" type="text/css" href="/%s.css">
<!-- <link rel="stylesheet" type="text/css" href="../dist/ratfe.css"> -->
</head>
<body>
%s
<div id="display-wrapper">
<div id="display">
<header id="navbar">