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implement basic feed authentication parameter encryption in the database (FEED_CRYPT_KEY)

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This commit is contained in:
Andrew Dolgov
2013-04-13 18:24:27 +04:00
parent 5b27cb05a8
commit 044cff2d74
8 changed files with 130 additions and 9 deletions
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36
include/crypt.php Normal file
View File

@@ -0,0 +1,36 @@
<?php
function decrypt_string($str) {
$pair = explode(":", $str);
if (count($pair) == 2) {
@$iv = base64_decode($pair[0]);
@$encstr = base64_decode($pair[1]);
if ($iv && $encstr) {
$key = hash('SHA256', FEED_CRYPT_KEY, true);
$str = mcrypt_decrypt(MCRYPT_RIJNDAEL_128, $key, $encstr,
MCRYPT_MODE_CBC, $iv);
if ($str) return rtrim($str);
}
}
return false;
}
function encrypt_string($str) {
$key = hash('SHA256', FEED_CRYPT_KEY, true);
$iv = mcrypt_create_iv(mcrypt_get_iv_size(MCRYPT_RIJNDAEL_128,
MCRYPT_MODE_CBC), MCRYPT_RAND);
$encstr = mcrypt_encrypt(MCRYPT_RIJNDAEL_128, $key, $str,
MCRYPT_MODE_CBC, $iv);
$iv_base64 = base64_encode($iv);
$encstr_base64 = base64_encode($encstr);
return "$iv_base64:$encstr_base64";
}
?>

12
include/functions.php
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@@ -1614,12 +1614,20 @@
"SELECT id FROM ttrss_feeds
WHERE feed_url = '$url' AND owner_uid = ".$_SESSION["uid"]);
if (strlen(FEED_CRYPT_KEY) > 0) {
require_once "crypt.php";
$auth_pass = substr(encrypt_string($auth_pass), 0, 250);
$auth_pass_encrypted = 'true';
} else {
$auth_pass_encrypted = 'false';
}
if (db_num_rows($result) == 0) {
$result = db_query($link,
"INSERT INTO ttrss_feeds
(owner_uid,feed_url,title,cat_id, auth_login,auth_pass,update_method)
(owner_uid,feed_url,title,cat_id, auth_login,auth_pass,update_method,auth_pass_encrypted)
VALUES ('".$_SESSION["uid"]."', '$url',
'[Unknown]', $cat_qpart, '$auth_login', '$auth_pass', 0)");
'[Unknown]', $cat_qpart, '$auth_login', '$auth_pass', 0, $auth_pass_encrypted)");
$result = db_query($link,
"SELECT id FROM ttrss_feeds WHERE feed_url = '$url'

9
include/rssfuncs.php
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@@ -203,7 +203,7 @@
$result = db_query($link, "SELECT id,update_interval,auth_login,
feed_url,auth_pass,cache_images,last_updated,
mark_unread_on_update, owner_uid,
pubsub_state
pubsub_state, auth_pass_encrypted
FROM ttrss_feeds WHERE id = '$feed'");
if (db_num_rows($result) == 0) {
@@ -218,6 +218,8 @@
$mark_unread_on_update = sql_bool_to_bool(db_fetch_result($result,
0, "mark_unread_on_update"));
$pubsub_state = db_fetch_result($result, 0, "pubsub_state");
$auth_pass_encrypted = sql_bool_to_bool(db_fetch_result($result,
0, "auth_pass_encrypted"));
db_query($link, "UPDATE ttrss_feeds SET last_update_started = NOW()
WHERE id = '$feed'");
@@ -225,6 +227,11 @@
$auth_login = db_fetch_result($result, 0, "auth_login");
$auth_pass = db_fetch_result($result, 0, "auth_pass");
if ($auth_pass_encrypted) {
require_once "crypt.php";
$auth_pass = decrypt_string($auth_pass);
}
$cache_images = sql_bool_to_bool(db_fetch_result($result, 0, "cache_images"));
$fetch_url = db_fetch_result($result, 0, "feed_url");

8
include/sanity_check.php
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@@ -67,6 +67,14 @@
array_push($errors, "Javascript cache is not writable (chmod -R 777 ".CACHE_DIR."/js)");
}
if (strlen(FEED_CRYPT_KEY) != 24) {
array_push($errors, "FEED_CRYPT_KEY should be exactly 24 characters in length.");
}
if (strlen(FEED_CRYPT_KEY) != 0 && !function_exists("mcrypt_decrypt")) {
array_push($errors, "FEED_CRYPT_KEY requires mcrypt functions which are not found.");
}
if (GENERATED_CONFIG_CHECK != EXPECTED_CONFIG_VERSION) {
array_push($errors,
"Configuration option checker sanity_config.php is outdated, please recreate it using ./utils/regen_config_checks.sh");

4
include/sanity_config.php
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@@ -1,3 +1,3 @@
<?php # This file has been generated at: Mon Apr 1 18:30:54 IDT 2013
<?php # This file has been generated at: Sat Apr 13 17:41:19 MSK 2013
define('GENERATED_CONFIG_CHECK', 26);
$requred_defines = array( 'DB_TYPE', 'DB_HOST', 'DB_USER', 'DB_NAME', 'DB_PASS', 'MYSQL_CHARSET', 'SELF_URL_PATH', 'SINGLE_USER_MODE', 'SIMPLE_UPDATE_MODE', 'PHP_EXECUTABLE', 'LOCK_DIRECTORY', 'CACHE_DIR', 'ICONS_DIR', 'ICONS_URL', 'AUTH_AUTO_CREATE', 'AUTH_AUTO_LOGIN', 'FORCE_ARTICLE_PURGE', 'PUBSUBHUBBUB_HUB', 'PUBSUBHUBBUB_ENABLED', 'SPHINX_ENABLED', 'SPHINX_INDEX', 'ENABLE_REGISTRATION', 'REG_NOTIFY_ADDRESS', 'REG_MAX_USERS', 'SESSION_COOKIE_LIFETIME', 'SESSION_CHECK_ADDRESS', 'SMTP_FROM_NAME', 'SMTP_FROM_ADDRESS', 'DIGEST_SUBJECT', 'SMTP_HOST', 'SMTP_PORT', 'SMTP_LOGIN', 'SMTP_PASSWORD', 'CHECK_FOR_NEW_VERSION', 'ENABLE_GZIP_OUTPUT', 'PLUGINS', 'CONFIG_VERSION'); ?>
$requred_defines = array( 'DB_TYPE', 'DB_HOST', 'DB_USER', 'DB_NAME', 'DB_PASS', 'MYSQL_CHARSET', 'SELF_URL_PATH', 'FEED_CRYPT_KEY', 'SINGLE_USER_MODE', 'SIMPLE_UPDATE_MODE', 'PHP_EXECUTABLE', 'LOCK_DIRECTORY', 'CACHE_DIR', 'ICONS_DIR', 'ICONS_URL', 'AUTH_AUTO_CREATE', 'AUTH_AUTO_LOGIN', 'FORCE_ARTICLE_PURGE', 'PUBSUBHUBBUB_HUB', 'PUBSUBHUBBUB_ENABLED', 'SPHINX_ENABLED', 'SPHINX_INDEX', 'ENABLE_REGISTRATION', 'REG_NOTIFY_ADDRESS', 'REG_MAX_USERS', 'SESSION_COOKIE_LIFETIME', 'SESSION_CHECK_ADDRESS', 'SMTP_FROM_NAME', 'SMTP_FROM_ADDRESS', 'DIGEST_SUBJECT', 'SMTP_HOST', 'SMTP_PORT', 'SMTP_LOGIN', 'SMTP_PASSWORD', 'CHECK_FOR_NEW_VERSION', 'ENABLE_GZIP_OUTPUT', 'PLUGINS', 'CONFIG_VERSION'); ?>