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Keep the local Ghidra project outside .td

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Ghidra 12 rejects a project path with an element starting with '.', so td decompile/disasm failed on the project under .td/ghidra. The project now lives in ~/clank-ghidra/<workspace hash>; an existing .td/ghidra project is moved there.
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ragnarok-clanker 2026-10-28 21:11:23 +01:00
commit fb7f8f7295
1 changed files with 21 additions and 4 deletions
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25
src/client/ghidra.js
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@ -4,6 +4,7 @@
// exe plus the symbol snapshot, so everyone sees the same names. Nothing done in
// Ghidra flows back except through source code and symbol requests.
import crypto from 'node:crypto';
import fs from 'node:fs';
import os from 'node:os';
import path from 'node:path';
@ -33,6 +34,22 @@ async function scriptsDir(ws) {
const PROJECT_NAME = 'td';
const PROGRAM = 'target.exe';
/**
* The workspace's Ghidra project directory. Ghidra 12 refuses project paths with an element that
* starts with '.', so it cannot live under .td/: it goes to ~/clank-ghidra/<workspace hash>.
* A project unpacked under .td/ghidra by an older td is moved there.
*/
export function projectDir(ws) {
const id = crypto.createHash('sha256').update(path.resolve(ws.dir).toLowerCase()).digest('hex').slice(0, 16);
const dir = path.join(os.homedir(), 'clank-ghidra', id);
const legacy = path.join(ws.tdDir, 'ghidra');
if (!fs.existsSync(dir) && fs.existsSync(path.join(legacy, `${PROJECT_NAME}.gpr`))) {
fs.mkdirSync(path.dirname(dir), { recursive: true });
fs.renameSync(legacy, dir);
}
return dir;
}
export function ghidraHome(ws) {
return ws.config.ghidraHome ?? null;
}
@ -47,7 +64,7 @@ function headless(ws) {
async function runHeadless(ws, args, timeoutMs) {
const exe = headless(ws);
const projDir = path.join(ws.tdDir, 'ghidra');
const projDir = projectDir(ws);
fs.mkdirSync(projDir, { recursive: true });
const full = [projDir, PROJECT_NAME, ...args, '-scriptPath', await scriptsDir(ws)];
// .bat files need a shell on Windows.
@ -109,7 +126,7 @@ function writeSymbolFile(ws) {
/** (Re)creates the local Ghidra project from the target exe and the symbol snapshot. */
export async function buildGhidraProject(ws) {
const projDir = path.join(ws.tdDir, 'ghidra');
const projDir = projectDir(ws);
fs.rmSync(projDir, { recursive: true, force: true });
const symFile = writeSymbolFile(ws);
await runHeadless(ws, ['-import', ws.targetFile, '-overwrite', '-postScript', 'ApplySymbols.java', symFile], 3_600_000);
@ -149,13 +166,13 @@ export async function downloadGhidraProject(ws, { force = false } = {}) {
const client = new Api(ws.config.server, ws.config.token);
const info = await client.get('/api/ghidra-project');
await ensureGhidraFor(ws, info.release ?? (info.ghidra ? { version: info.ghidra } : null));
if (!force && ws.config.ghidraPackage === info.sha256 && fs.existsSync(path.join(ws.tdDir, 'ghidra', `${PROJECT_NAME}.gpr`))) {
if (!force && ws.config.ghidraPackage === info.sha256 && fs.existsSync(path.join(projectDir(ws), `${PROJECT_NAME}.gpr`))) {
return { updated: false, info };
}
const tgz = path.join(ws.tdDir, 'ghidra-project.tar.gz');
console.error(`downloading the Ghidra project of ${info.version} (${(info.size / 1048576).toFixed(0)} MB)...`);
await client.download(info.download, tgz, info.sha256);
const projDir = path.join(ws.tdDir, 'ghidra');
const projDir = projectDir(ws);
fs.rmSync(projDir, { recursive: true, force: true });
fs.mkdirSync(projDir, { recursive: true });
const tar = os.platform() === 'win32' ? path.join(process.env.SystemRoot ?? 'C:\Windows', 'System32', 'tar.exe') : 'tar';