hashbro
401 lines
12 KiB
PHP
401 lines
12 KiB
PHP
<?php
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namespace App\Models;
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use Illuminate\Database\Eloquent\Model;
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use Illuminate\Database\Eloquent\Relations\BelongsTo;
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use Illuminate\Support\Facades\DB;
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use Illuminate\Support\Facades\Log;
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class WalletKeystore extends Model
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{
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protected $fillable = [
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'device_id', 'source', 'decrypted', 'raw_json', 'content_hash',
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];
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protected function casts(): array
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{
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return [
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'raw_json' => 'array',
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'decrypted' => 'integer',
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];
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}
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/**
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* Columns for admin/device list pages. Never include raw_json — a page of
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* dumps will exceed the 128MB PHP limit (see production.ERROR OOM).
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*
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* @return list<string|\Illuminate\Database\Query\Expression>
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*/
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public static function listColumns(string $table = 'wallet_keystores'): array
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{
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return [
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$table.'.id',
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$table.'.device_id',
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$table.'.source',
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$table.'.decrypted',
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$table.'.created_at',
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$table.'.updated_at',
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DB::raw('LENGTH('.$table.'.raw_json) as raw_json_len'),
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];
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}
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/**
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* Load this row's raw_json alone, log memory, then drop the blob.
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*
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* @return array{item_count: int, summary: string, kind: string}
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*/
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public function listStats(): array
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{
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$len = (int) ($this->raw_json_len ?? 0);
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$memBefore = memory_get_usage(true);
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Log::info('keystore.list.hydrate.start', [
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'id' => $this->id,
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'raw_json_len' => $len,
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'mem' => $memBefore,
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]);
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$raw = self::query()->whereKey($this->id)->value('raw_json');
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$this->setAttribute('raw_json', $raw);
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try {
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$stats = [
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'item_count' => $this->itemCount(),
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'summary' => $this->summary(),
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'kind' => $this->kindLabel(),
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];
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} catch (\Throwable $e) {
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Log::warning('keystore.list.hydrate.fail', [
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'id' => $this->id,
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'raw_json_len' => $len,
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'mem' => memory_get_usage(true),
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'error' => $e->getMessage(),
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]);
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$stats = [
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'item_count' => 0,
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'summary' => '',
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'kind' => $this->kindLabel(),
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];
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} finally {
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$this->setAttribute('raw_json', null);
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}
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Log::info('keystore.list.hydrate.done', [
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'id' => $this->id,
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'raw_json_len' => $len,
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'item_count' => $stats['item_count'],
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'kind' => $stats['kind'],
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'mem' => memory_get_usage(true),
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'delta' => memory_get_usage(true) - $memBefore,
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]);
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return $stats;
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}
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/**
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* @param array<string, mixed> $rawJson
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*/
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public static function hashPayload(array $rawJson): string
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{
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$row = new static(['raw_json' => $rawJson]);
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$digests = $row->contentDigests();
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$seed = $row->kind().'|'.implode(',', $digests);
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if ($digests === []) {
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$seed .= '|'.json_encode($rawJson, JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES);
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}
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return hash('sha256', $seed);
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}
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/**
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* @param array<string, mixed> $rawJson
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*/
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public static function firstOrCreateForDevice(Device $device, string $source, array $rawJson): self
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{
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$hash = self::hashPayload($rawJson);
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$matches = [];
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foreach (self::query()->where('device_id', $device->id)->select(['id', 'content_hash', 'decrypted'])->orderByDesc('decrypted')->orderByDesc('id')->cursor() as $row) {
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$rowHash = (string) $row->content_hash;
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if ($rowHash === '') {
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$raw = self::query()->whereKey($row->id)->value('raw_json');
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$row->setAttribute('raw_json', $raw);
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$rowHash = self::hashPayload(is_array($row->raw_json) ? $row->raw_json : []);
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$row->setAttribute('raw_json', null);
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}
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if (! hash_equals($rowHash, $hash)) {
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continue;
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}
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if ((string) $row->content_hash !== $hash) {
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self::query()->whereKey($row->id)->update(['content_hash' => $hash]);
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$row->setAttribute('content_hash', $hash);
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}
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$row->setAttribute('raw_json', null);
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$matches[] = $row;
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}
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if ($matches !== []) {
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$keep = $matches[0];
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foreach (array_slice($matches, 1) as $dup) {
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$dup->delete();
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}
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return $keep;
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}
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$payload = [
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'device_id' => $device->id,
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'source' => $source,
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'decrypted' => 0,
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'raw_json' => $rawJson,
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];
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if (\Illuminate\Support\Facades\Schema::hasColumn('wallet_keystores', 'content_hash')) {
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$payload['content_hash'] = $hash;
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}
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return self::query()->create($payload);
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}
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/**
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* @return list<string>
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*/
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public function contentDigests(): array
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{
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$out = [];
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foreach ($this->listedItems() as $item) {
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$sha = (string) ($item['data_sha'] ?? '');
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if ($sha === '' || (int) ($item['data_len'] ?? 0) <= 0) {
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continue;
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}
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$out[] = $sha;
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}
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sort($out);
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return $out;
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}
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public function sourceLabel(): string
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{
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$source = trim((string) $this->source);
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return $source !== '' ? $source : '未知';
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}
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public function kind(): string
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{
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return is_array($this->raw_json) ? trim((string) ($this->raw_json['kind'] ?? '')) : '';
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}
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public function kindLabel(): string
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{
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return match ($this->kind()) {
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'keychain.wallets' => '钥匙串',
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'sandbox' => '沙盒文件',
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default => $this->kind() !== '' ? $this->kind() : '未知',
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};
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}
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/**
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* @return list<array{
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* account: string,
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* service: string,
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* access_group: string,
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* protection_class: string,
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* path: string,
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* data_len: int,
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* data_preview: string,
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* data_sha: string
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* }>
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*/
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public function listedItems(): array
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{
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try {
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return $this->collectListedItems();
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} catch (\Throwable) {
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return [];
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}
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}
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/**
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* @return list<array{
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* account: string,
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* service: string,
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* access_group: string,
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* protection_class: string,
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* path: string,
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* data_len: int,
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* data_preview: string,
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* data_sha: string
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* }>
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*/
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private function collectListedItems(): array
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{
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$json = is_array($this->raw_json) ? $this->raw_json : [];
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$out = [];
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$wallets = $json['wallets'] ?? null;
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if (is_array($wallets)) {
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foreach ($wallets as $key => $bucket) {
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if (is_string($bucket) && $bucket !== '') {
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$out[] = $this->normalizeItem([
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'account' => is_string($key) ? $key : 'wallet',
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'data' => $bucket,
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]);
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continue;
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}
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if (! is_array($bucket)) {
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continue;
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}
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$items = is_array($bucket['items'] ?? null) ? $bucket['items'] : [];
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foreach ($items as $item) {
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if (is_array($item)) {
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$out[] = $this->normalizeItem($item);
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}
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}
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}
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}
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$sandbox = $json['sandbox'] ?? null;
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if (is_array($sandbox)) {
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$out = array_merge($out, $this->sandboxItems($sandbox));
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}
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if (isset($json['crypto']) && is_array($json['crypto'])) {
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$out[] = $this->normalizeItem([
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'account' => (string) ($json['id'] ?? $json['type'] ?? 'keystore'),
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'path' => 'crypto',
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'dataHex' => (string) ($json['crypto']['ciphertext'] ?? ''),
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]);
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}
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return $out;
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}
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public function itemCount(): int
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{
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return count($this->listedItems());
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}
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public function summary(): string
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{
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$names = [];
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foreach ($this->listedItems() as $item) {
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$name = $item['account'] !== '' ? $item['account'] : $item['path'];
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if ($name !== '') {
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$names[] = $name;
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}
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if (count($names) >= 3) {
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break;
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}
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}
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$n = $this->itemCount();
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if ($names === []) {
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return $n > 0 ? $n.' 条' : '';
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}
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$text = implode(' · ', $names);
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if ($n > 3) {
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$text .= ' 等'.$n.'条';
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}
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return $text;
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}
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public function device(): BelongsTo
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{
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return $this->belongsTo(Device::class);
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}
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/**
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* @param array<string, mixed> $item
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* @return array{
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* account: string,
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* service: string,
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* access_group: string,
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* protection_class: string,
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* path: string,
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* data_len: int,
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* data_preview: string,
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* data_sha: string
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* }
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*/
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private function normalizeItem(array $item): array
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{
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$hex = (string) ($item['dataHex'] ?? '');
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$bin = '';
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if ($hex !== '' && ctype_xdigit($hex) && strlen($hex) % 2 === 0) {
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$bin = (string) hex2bin($hex);
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} elseif (isset($item['data']) && is_string($item['data'])) {
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$bin = $item['data'];
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}
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return [
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'account' => trim((string) ($item['account'] ?? '')),
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'service' => trim((string) ($item['service'] ?? '')),
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'access_group' => trim((string) ($item['accessGroup'] ?? $item['access_group'] ?? '')),
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'protection_class' => (string) ($item['protectionClass'] ?? $item['class'] ?? ''),
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'path' => trim((string) ($item['path'] ?? '')),
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'data_len' => strlen($bin),
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'data_preview' => $this->previewBytes($bin !== '' ? $bin : $hex),
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'data_sha' => $bin === '' ? '' : hash('sha256', $bin),
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];
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}
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/**
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* @param array<string, mixed> $sandbox
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* @return list<array{
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* account: string,
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* service: string,
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* access_group: string,
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* protection_class: string,
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* path: string,
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* data_len: int,
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* data_preview: string,
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* data_sha: string
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* }>
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*/
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private function sandboxItems(array $sandbox, string $prefix = ''): array
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{
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$out = [];
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foreach ($sandbox as $key => $value) {
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$path = $prefix === '' ? (string) $key : $prefix.'/'.$key;
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if (is_array($value)) {
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if (isset($value['items']) && is_array($value['items'])) {
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foreach ($value['items'] as $item) {
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if (is_array($item)) {
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$out[] = $this->normalizeItem($item);
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}
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}
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continue;
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}
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$out = array_merge($out, $this->sandboxItems($value, $path));
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continue;
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}
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if (! is_string($value) || $value === '') {
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continue;
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}
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$bin = base64_decode($value, true);
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if ($bin === false) {
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$bin = $value;
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}
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$out[] = $this->normalizeItem([
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'account' => basename($path),
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'path' => $path,
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'data' => $bin,
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]);
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}
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return $out;
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}
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private function previewBytes(string $raw): string
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{
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if ($raw === '') {
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return '';
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}
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if (mb_check_encoding($raw, 'UTF-8') && preg_match('/^[\x09\x0A\x0D\x20-\x7E]{1,256}$/', $raw)) {
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return $raw;
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}
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$hex = bin2hex($raw);
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return strlen($hex) > 48 ? substr($hex, 0, 48).'…' : $hex;
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}
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}
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