97 lines
3.0 KiB
TypeScript
97 lines
3.0 KiB
TypeScript
import "./shim.ts";
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import { XqBytesEnc } from "./func_replacements.js";
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import { Commands } from "./datatypes.js";
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import { u16_swap } from "./utils.js";
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const str2byte = (s: string): number[] => {
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return Array.from(s).map((_, i) => s.charCodeAt(i));
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};
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const CmdSndProcHdr = (start: number, cmd: number, len: number, dest: number): DataView => {
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len = len + 4; // hdr size?
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let cmdHeader = new DataView(new Uint8Array(8).buffer);
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cmdHeader.writeU16(u16_swap(start));
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cmdHeader.add(2).writeU16(u16_swap(cmd));
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cmdHeader.add(4).writeU16(u16_swap(len));
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cmdHeader.add(6).writeU16(u16_swap(dest));
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return cmdHeader;
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};
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const DrwHdr = (cmd: number, len: number, d1_or_d2: 0xd1 | 0xd2, m_chan: number): DataView => {
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let retret = new DataView(new Uint8Array(len + 4).buffer);
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retret.writeU16(cmd);
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retret.add(2).writeU16(len); // buflen -4?
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retret.add(4).writeU16(u16_swap(d1_or_d2));
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retret.add(6).writeU16(m_chan); // chan? hardcoded
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return retret;
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};
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export const SendUsrAck = (challenge: number[]): DataView => {
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// TODO: extract SendUsrChk
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let buf = new DataView(new Uint8Array(0x18).buffer);
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const seq = 0x1;
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let bytes = [
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0xf1,
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0xd0,
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0x01,
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0x14,
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0xd1,
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0x00,
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0x00,
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seq,
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0x11,
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0x0a,
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0x10,
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0x30,
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0x08,
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0x01,
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0x00,
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0x00,
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challenge[0] % 2 == 0 ? challenge[0] + 1 : challenge[0] - 1,
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challenge[1] % 2 == 0 ? challenge[1] + 1 : challenge[1] - 1,
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challenge[2] % 2 == 0 ? challenge[2] + 1 : challenge[2] - 1,
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challenge[3] % 2 == 0 ? challenge[3] + 1 : challenge[3] - 1,
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0x01,
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0x01,
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0x01,
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0x01,
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];
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buf.writeByteArray(bytes);
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return buf;
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};
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export const SendUsrChk = (username: string, password: string): DataView => {
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// type is char account[0x20]; char password[0x80];
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let buf = new Uint8Array(0x20 + 0x80);
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buf.fill(0);
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let cmd_payload = new DataView(buf.buffer);
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cmd_payload.writeByteArray(str2byte(username));
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cmd_payload.add(0x20).writeByteArray(str2byte(password));
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const start = 0xa11;
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const dest = 0xff;
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const cmd = 0x1020;
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const len = buf.byteLength;
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let cmdHeader = CmdSndProcHdr(start, cmd, len, dest);
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let ret = new DataView(new Uint8Array(12 + len).buffer);
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ret.writeByteArray(new Uint8Array(cmdHeader.buffer));
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XqBytesEnc(cmd_payload, 0x20 + 0x80, 4);
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ret.add(12).writeByteArray(new Uint8Array(cmd_payload.buffer));
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// need to encapsulate this into create_Drw(outbuf, 0xd1, param4?, svar1?,
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// copy_len, inbuf); seems like param4/svar1 are overflowing == maybe '0xa'
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// and '0x2010'??
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let retret = DrwHdr(0xf1d0, 8 + 12 + len - 4, 0xd1, 0);
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retret.add(8).writeByteArray(new Uint8Array(ret.buffer));
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return retret;
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};
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export const create_P2pRdy = (inbuf: DataView): DataView => {
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const P2PRDY_SIZE = 0x14;
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const outbuf = new DataView(new Uint8Array(P2PRDY_SIZE + 4).buffer);
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outbuf.writeU16(Commands.P2pRdy);
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outbuf.add(2).writeU16(P2PRDY_SIZE);
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outbuf.add(4).writeByteArray(new Uint8Array(inbuf.readByteArray(P2PRDY_SIZE).buffer));
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return outbuf;
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};
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