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67 lines
2.3 KiB
TypeScript
67 lines
2.3 KiB
TypeScript
// Loaded from https://deno.land/x/mysql/src/packets/builders/auth.ts
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import auth from "../../auth.ts";
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import { BufferWriter } from "../../buffer.ts";
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import ServerCapabilities from "../../constant/capabilities.ts";
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import { Charset } from "../../constant/charset.ts";
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import type { HandshakeBody } from "../parsers/handshake.ts";
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/** @ignore */
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export function buildAuth(
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packet: HandshakeBody,
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params: { username: string; password?: string; db?: string },
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): Uint8Array {
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const clientParam: number =
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(params.db ? ServerCapabilities.CLIENT_CONNECT_WITH_DB : 0) |
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ServerCapabilities.CLIENT_PLUGIN_AUTH |
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ServerCapabilities.CLIENT_LONG_PASSWORD |
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ServerCapabilities.CLIENT_PROTOCOL_41 |
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ServerCapabilities.CLIENT_TRANSACTIONS |
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ServerCapabilities.CLIENT_MULTI_RESULTS |
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ServerCapabilities.CLIENT_SECURE_CONNECTION |
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(ServerCapabilities.CLIENT_LONG_FLAG & packet.serverCapabilities) |
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(ServerCapabilities.CLIENT_PLUGIN_AUTH_LENENC_CLIENT_DATA &
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packet.serverCapabilities) |
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(ServerCapabilities.CLIENT_DEPRECATE_EOF & packet.serverCapabilities);
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if (packet.serverCapabilities & ServerCapabilities.CLIENT_PLUGIN_AUTH) {
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const writer = new BufferWriter(new Uint8Array(1000));
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writer
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.writeUint32(clientParam)
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.writeUint32(2 ** 24 - 1)
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.write(Charset.UTF8_GENERAL_CI)
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.skip(23)
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.writeNullTerminatedString(params.username);
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if (params.password) {
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const authData = auth(
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packet.authPluginName,
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params.password,
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packet.seed,
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);
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if (
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clientParam &
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ServerCapabilities.CLIENT_PLUGIN_AUTH_LENENC_CLIENT_DATA ||
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clientParam & ServerCapabilities.CLIENT_SECURE_CONNECTION
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) {
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// request lenenc-int length of auth-response and string[n] auth-response
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writer.write(authData.length);
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writer.writeBuffer(authData);
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} else {
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writer.writeBuffer(authData);
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writer.write(0);
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}
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} else {
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writer.write(0);
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}
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if (clientParam & ServerCapabilities.CLIENT_CONNECT_WITH_DB && params.db) {
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writer.writeNullTerminatedString(params.db);
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}
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if (clientParam & ServerCapabilities.CLIENT_PLUGIN_AUTH) {
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writer.writeNullTerminatedString(packet.authPluginName);
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}
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return writer.wroteData;
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}
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return Uint8Array.from([]);
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}
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