1 files changed, 118 insertions, 0 deletions
diff --git a/classes/auth/internal.php b/classes/auth/internal.php
new file mode 100644
index 000000000..8890d4455
--- /dev/null
+++ b/classes/auth/internal.php
@@ -0,0 +1,118 @@
+<?php
+class Auth_Internal extends Auth_Base {
+
+	function authenticate($login, $password) {
+
+		$pwd_hash1 = encrypt_password($password);
+		$pwd_hash2 = encrypt_password($password, $login);
+		$login = db_escape_string($login);
+
+		if (get_schema_version($this->link) > 87) {
+
+			$result = db_query($this->link, "SELECT salt FROM ttrss_users WHERE
+				login = '$login'");
+
+			if (db_num_rows($result) != 1) {
+				return false;
+			}
+
+			$salt = db_fetch_result($result, 0, "salt");
+
+			if ($salt == "") {
+
+				$query = "SELECT id
+	            FROM ttrss_users WHERE
+					login = '$login' AND (pwd_hash = '$pwd_hash1' OR
+					pwd_hash = '$pwd_hash2')";
+
+				// verify and upgrade password to new salt base
+
+				$result = db_query($this->link, $query);
+
+				if (db_num_rows($result) == 1) {
+					// upgrade password to MODE2
+
+					$salt = substr(bin2hex(get_random_bytes(125)), 0, 250);
+					$pwd_hash = encrypt_password($password, $salt, true);
+
+					db_query($this->link, "UPDATE ttrss_users SET
+						pwd_hash = '$pwd_hash', salt = '$salt' WHERE login = '$login'");
+
+					$query = "SELECT id
+		            FROM ttrss_users WHERE
+						login = '$login' AND pwd_hash = '$pwd_hash'";
+
+				} else {
+					return false;
+				}
+
+			} else {
+
+				$pwd_hash = encrypt_password($password, $salt, true);
+
+				$query = "SELECT id
+		         FROM ttrss_users WHERE
+					login = '$login' AND pwd_hash = '$pwd_hash'";
+
+			}
+
+		} else {
+			$query = "SELECT id
+	         FROM ttrss_users WHERE
+				login = '$login' AND (pwd_hash = '$pwd_hash1' OR
+					pwd_hash = '$pwd_hash2')";
+		}
+
+		$result = db_query($this->link, $query);
+
+		if (db_num_rows($result) == 1) {
+			return db_fetch_result($result, 0, "id");
+		}
+
+		return false;
+	}
+
+	function change_password($owner_uid, $old_password, $new_password) {
+		$owner_uid = db_escape_string($owner_uid);
+
+		$result = db_query($this->link, "SELECT salt,login FROM ttrss_users WHERE
+			id = '$owner_uid'");
+
+		$salt = db_fetch_result($result, 0, "salt");
+		$login = db_fetch_result($result, 0, "login");
+
+		if (!$salt) {
+			$old_password_hash1 = encrypt_password($old_password);
+			$old_password_hash2 = encrypt_password($old_password, $login);
+
+			$query = "SELECT id FROM ttrss_users WHERE
+				id = '$owner_uid' AND (pwd_hash = '$old_password_hash1' OR
+				pwd_hash = '$old_password_hash2')";
+
+		} else {
+			$old_password_hash = encrypt_password($old_password, $salt, true);
+
+			$query = "SELECT id FROM ttrss_users WHERE
+				id = '$owner_uid' AND pwd_hash = '$old_password_hash'";
+		}
+
+		$result = db_query($this->link, $query);
+
+		if (db_num_rows($result) == 1) {
+
+			$new_salt = substr(bin2hex(get_random_bytes(125)), 0, 250);
+			$new_password_hash = encrypt_password($new_password, $new_salt, true);
+
+			db_query($this->link, "UPDATE ttrss_users SET
+				pwd_hash = '$new_password_hash', salt = '$new_salt'
+					WHERE id = '$owner_uid'");
+
+			$_SESSION["pwd_hash"] = $new_password_hash;
+
+			return __("Password has been changed.");
+		} else {
+			return "ERROR: ".__('Old password is incorrect.');
+		}
+	}
+}
+?>