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Object.defineProperty(exports, "__esModule", { value: true });
exports.resolveFileRefs = resolveFileRefs;
exports.downloadRawFileBlob = downloadRawFileBlob;
exports.probeFileBlobs = probeFileBlobs;
const File_1 = require("../../Model/File");
const PassmanCrypto_1 = require("../PassmanCrypto");
const payloadCrypto_1 = require("./payloadCrypto");
const fileRefs_1 = require("./fileRefs");
const types_1 = require("./types");
function fillMissingFileFieldFromKey(encrypted, preview, field, internal) {
Eif (internal.payload.fieldKeyIds[field] !== undefined) {
return;
}
const extraKeys = [internal.sharedKeyPlain, internal.aclKeyPlain].filter((key) => !!key);
for (const key of extraKeys) {
try {
const decrypted = (0, payloadCrypto_1.rawDecryptJsonField)(encrypted, field, key);
if (Array.isArray(decrypted)) {
preview[field] = decrypted;
return;
}
}
catch (e) {
// try next extra key
}
}
}
function resolveFileRefs(encrypted, internal) {
const preview = { ...internal.payload.recoveredPreview };
fillMissingFileFieldFromKey(encrypted, preview, 'files', internal);
fillMissingFileFieldFromKey(encrypted, preview, 'custom_fields', internal);
return (0, fileRefs_1.collectFileRefs)(preview);
}
function promoteHitIfFilesNeedRewrap(hit, preferredKeyId) {
if (hit.kind === 'shared_with_us') {
return;
}
if (!hit.fileHits.some((fileHit) => fileHit.status === 'needs_rewrap')) {
return;
}
if (hit.status !== 'ok') {
return;
}
hit.status = 'needs_rewrap';
hit.suggestedStrategy = hit.kind === 'owned' ? 'rewrap_owned' : 'rewrap_shared_by_us_wrapper';
Iif (hit.workingKeyId === undefined) {
hit.workingKeyId = preferredKeyId;
}
}
function collectBlobKeyProbes(internal, candidates, preferred) {
const probes = [];
const seenIds = new Set();
const add = (id, key) => {
Iif (!key || seenIds.has(id)) {
return;
}
seenIds.add(id);
probes.push({ id, key });
};
if (internal.hit.kind === 'shared_by_us' && internal.sharedKeyPlain) {
add(types_1.SHARED_KEY_PROBE_ID, internal.sharedKeyPlain);
}
if (internal.hit.kind === 'shared_with_us' && internal.aclKeyPlain) {
add(types_1.ACL_KEY_PROBE_ID, internal.aclKeyPlain);
}
for (const candidate of (0, payloadCrypto_1.orderPreferredFirst)(candidates, preferred?.id)) {
add(candidate.id, candidate.password);
}
return probes;
}
function destinationProbeIds(kind, preferredKeyId, probes) {
const ids = new Set();
if (kind === 'owned' && preferredKeyId) {
ids.add(preferredKeyId);
}
if (kind === 'shared_by_us' && probes.some((probe) => probe.id === types_1.SHARED_KEY_PROBE_ID)) {
ids.add(types_1.SHARED_KEY_PROBE_ID);
}
else if (kind === 'shared_by_us' && preferredKeyId) {
// shared_key did not yield a payload key. Repair clears it and the credential becomes owned.
ids.add(preferredKeyId);
}
if (kind === 'shared_with_us' && probes.some((probe) => probe.id === types_1.ACL_KEY_PROBE_ID)) {
ids.add(types_1.ACL_KEY_PROBE_ID);
}
return ids;
}
function isSentinelProbeId(id) {
return id === types_1.SHARED_KEY_PROBE_ID || id === types_1.ACL_KEY_PROBE_ID;
}
function blobDecryptsWith(fileData, key) {
try {
PassmanCrypto_1.PassmanCrypto.decryptString(fileData, key);
return true;
}
catch (e) {
return false;
}
}
async function downloadRawFileBlob(credential, kind, file, vault) {
try {
if (kind === 'shared_with_us') {
Iif (!file.guid) {
return;
}
return await File_1.File.downloadSharedFile(credential, file, vault.getServer());
}
Iif (file.file_id === undefined || file.file_id === null) {
return;
}
return await File_1.File.downloadFile(file, vault.getServer());
}
catch (e) {
return;
}
}
async function probeOneFileBlob(credential, kind, ref, probes, vault, preferredKeyId) {
const filename = typeof ref.file.filename === 'string' && ref.file.filename.length > 0
? ref.file.filename
: '(unnamed)';
const base = {
file_id: ref.file.file_id,
guid: ref.file.guid,
filename,
source: ref.source,
status: 'broken'
};
const downloaded = await downloadRawFileBlob(credential, kind, ref.file, vault);
if (!downloaded || typeof downloaded.file_data !== 'string') {
return base;
}
const destinationIds = destinationProbeIds(kind, preferredKeyId, probes);
const destinationProbes = probes.filter((probe) => destinationIds.has(probe.id));
const otherProbes = probes.filter((probe) => !destinationIds.has(probe.id));
for (const probe of destinationProbes) {
if (blobDecryptsWith(downloaded.file_data, probe.key)) {
return {
...base,
status: 'ok',
workingKeyId: isSentinelProbeId(probe.id) ? undefined : probe.id
};
}
}
for (const probe of otherProbes) {
if (blobDecryptsWith(downloaded.file_data, probe.key)) {
return {
...base,
status: 'needs_rewrap',
workingKeyId: isSentinelProbeId(probe.id) ? undefined : probe.id
};
}
}
return base;
}
async function probeFileBlobs(vault, internals, candidates, preferred, progress, onProgress) {
const jobs = [];
for (const internal of internals) {
if (internal.hit.status === 'skipped' || internal.hit.status === 'broken') {
internal.hit.fileHits = [];
continue;
}
const credential = vault.getCredentialByGuid(internal.hit.guid);
Iif (!credential) {
internal.hit.fileHits = [];
continue;
}
const refs = resolveFileRefs(credential.getEncrypted(), internal);
jobs.push({ internal, credential, refs });
}
const totalFiles = jobs.reduce((sum, job) => sum + job.refs.length, 0);
if (totalFiles === 0) {
for (const job of jobs) {
job.internal.hit.fileHits = [];
}
return;
}
// now as the pre-filtering and selection of candidates is done, we can do the real work :)
progress.stage = 'files';
progress.doneSteps = 0;
progress.totalSteps = totalFiles;
onProgress?.(progress);
for (const job of jobs) {
const probes = collectBlobKeyProbes(job.internal, candidates, preferred);
const fileHits = [];
for (const ref of job.refs) {
const fileHit = await probeOneFileBlob(job.credential, job.internal.hit.kind, ref, probes, vault, preferred?.id);
fileHits.push(fileHit);
progress.doneSteps++;
progress.messages.push(`file ${fileHit.status}: ${job.internal.hit.label} / ${fileHit.filename}`);
onProgress?.(progress);
}
job.internal.hit.fileHits = fileHits;
promoteHitIfFilesNeedRewrap(job.internal.hit, preferred?.id);
}
}
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