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deprecate encrypted feed passwords because mcrypt is getting removed from php 7.1

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1. transparent decryption for existing installs stays for the time being
2. new passwords are not going to be encrypted even if FEED_CRYPT_KEY is defined
3. added update.php --decrypt-feeds to bulk decrypt existing encrypted passwords
4. updated install to not auto-generate crypt key
5. added warning to config.php-dist
master
Andrew Dolgov 7 years ago
parent 370fe2bdcd
commit 17a8e61d2a
7 changed files with 43 additions and 50 deletions
Show Stats Download Patch File Download Diff File

20
classes/pref/feeds.php
Unescape Escape View File

@ -646,7 +646,7 @@ class Pref_Feeds extends Handler_Protected {
$auth_pass = $this->dbh->fetch_result($result, 0, "auth_pass");
if ($auth_pass_encrypted) {
if ($auth_pass_encrypted && function_exists("mcrypt_decrypt")) {
require_once "crypt.php";
$auth_pass = decrypt_string($auth_pass);
}
@ -983,14 +983,7 @@ class Pref_Feeds extends Handler_Protected {
$feed_language = $this->dbh->escape_string(trim($_POST["feed_language"]));
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';
}
$auth_pass_encrypted = 'false';
$auth_pass = $this->dbh->escape_string($auth_pass);
if (get_pref('ENABLE_FEED_CATS')) {
@ -1889,14 +1882,7 @@ class Pref_Feeds extends Handler_Protected {
"SELECT id FROM ttrss_feeds
WHERE feed_url = '$feed' AND owner_uid = ".$_SESSION["uid"]);
if (strlen(FEED_CRYPT_KEY) > 0) {
require_once "crypt.php";
$pass = substr(encrypt_string($pass), 0, 250);
$auth_pass_encrypted = 'true';
} else {
$auth_pass_encrypted = 'false';
}
$auth_pass_encrypted = 'false';
$pass = $this->dbh->escape_string($pass);
if ($this->dbh->num_rows($result) == 0) {

5
config.php-dist
Unescape Escape View File

@ -25,6 +25,11 @@
// including PUSH, bookmarklets and browser integration will not work properly.
define('FEED_CRYPT_KEY', '');
// WARNING: mcrypt is deprecated in php 7.1. This directive exists for backwards
// compatibility with existing installs, new passwords are NOT going to be encrypted.
// Use update.php --decrypt-feeds to decrypt existing passwords in the database while
// mcrypt is still available.
// Key used for encryption of passwords for password-protected feeds
// in the database. A string of 24 random characters. If left blank, encryption
// is not used. Requires mcrypt functions.

15
include/crypt.php
Unescape Escape View File

@ -18,19 +18,4 @@
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";
}
?>

9
include/functions.php
Unescape Escape View File

@ -1749,14 +1749,7 @@
"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';
}
$auth_pass_encrypted = 'false';
$auth_pass = db_escape_string($auth_pass);
if (db_num_rows($result) == 0) {

4
include/rssfuncs.php
Unescape Escape View File

@ -254,7 +254,7 @@
$auth_login = db_fetch_result($result, 0, "auth_login");
$auth_pass = db_fetch_result($result, 0, "auth_pass");
if ($auth_pass_encrypted) {
if ($auth_pass_encrypted && function_exists("mcrypt_decrypt")) {
require_once "crypt.php";
$auth_pass = decrypt_string($auth_pass);
}
@ -347,7 +347,7 @@
$auth_login = db_fetch_result($result, 0, "auth_login");
$auth_pass = db_fetch_result($result, 0, "auth_pass");
if ($auth_pass_encrypted) {
if ($auth_pass_encrypted && function_exists("mcrypt_decrypt")) {
require_once "crypt.php";
$auth_pass = decrypt_string($auth_pass);
}

8
install/index.php
Unescape Escape View File

@ -128,12 +128,6 @@
$finished = false;
if (function_exists("mcrypt_decrypt")) {
$crypt_key = make_password(24);
} else {
$crypt_key = "";
}
foreach ($data as $line) {
if (preg_match("/define\('DB_TYPE'/", $line)) {
$rv .= "\tdefine('DB_TYPE', '$DB_TYPE');\n";
@ -149,8 +143,6 @@
$rv .= "\tdefine('DB_PORT', '$DB_PORT');\n";
} else if (preg_match("/define\('SELF_URL_PATH'/", $line)) {
$rv .= "\tdefine('SELF_URL_PATH', '$SELF_URL_PATH');\n";
} else if (preg_match("/define\('FEED_CRYPT_KEY'/", $line)) {
$rv .= "\tdefine('FEED_CRYPT_KEY', '$crypt_key');\n";
} else if (!$finished) {
$rv .= "$line\n";
}

32
update.php
Unescape Escape View File

@ -38,6 +38,7 @@
"debug-feed:",
"force-refetch",
"force-rehash",
"decrypt-feeds",
"help");
foreach (PluginHost::getInstance()->get_commands() as $command => $data) {
@ -91,6 +92,7 @@
print " --debug-feed N - perform debug update of feed N\n";
print " --force-refetch - debug update: force refetch feed data\n";
print " --force-rehash - debug update: force rehash articles\n";
print " --decrypt-feeds - decrypt feed passwords\n";
print " --help - show this help\n";
print "Plugin options:\n";
@ -402,6 +404,36 @@
update_rss_feed($feed);
}
if (isset($options["decrypt-feeds"])) {
$result = db_query("SELECT id, auth_pass FROM ttrss_feeds WHERE auth_pass_encrypted = true");
if (!function_exists("mcrypt_decrypt")) {
_debug("mcrypt functions not available.");
return;
}
require_once "crypt.php";
$total = 0;
db_query("BEGIN");
while ($line = db_fetch_assoc($result)) {
_debug("processing feed id " . $line["id"]);
$auth_pass = db_escape_string(decrypt_string($line["auth_pass"]));
db_query("UPDATE ttrss_feeds SET auth_pass_encrypted = false, auth_pass = '$auth_pass'
WHERE id = " . $line["id"]);
++$total;
}
db_query("COMMIT");
_debug("$total feeds processed.");
}
PluginHost::getInstance()->run_commands($options);
if (file_exists(LOCK_DIRECTORY . "/$lock_filename"))

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