231 lines
8.1 KiB
PHP
231 lines
8.1 KiB
PHP
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<?php
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use Moebooru\Versioning as Versioned;
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class HistoryController extends ApplicationController
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{
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public function index()
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{
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$this->helper('Tag', 'Post');
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$search = trim($this->params()->search) ?: "";
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$q = [
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'keywords' => []
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];
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if ($search) {
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foreach (explode(' ', $search) as $s) {
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if (preg_match('/^(.+?):(.*)/', $s, $m)) {
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$search_type = $m[1];
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$param = $m[2];
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if ($search_type == "user") {
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$q['user'] = $param;
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} elseif ($search_type == "change") {
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$q['change'] = (int)$param;
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} elseif ($search_type == "type") {
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$q['type'] = $param;
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} elseif ($search_type == "id") {
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$q['id'] = (int)$param;
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} elseif ($search_type == "field") {
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# 'type' must also be set for this to be used.
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$q['field'] = $param;
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} else {
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# pool'123'
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$q['type'] = $search_type;
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$q['id'] = (int)$param;
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}
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} else {
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$q['keywords'][] = $s;
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}
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}
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}
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$inflector = Rails::services()->get('inflector');
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if (!empty($q['type'])) {
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$q['type'] = $inflector->pluralize($q['type']);
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}
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if (!empty($q['inner_type'])) {
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$q['inner_type'] = $inflector->pluralize($q['inner_type']);
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}
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# If notes'id' has been specified, search using the inner key in history_changes
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# rather than the grouping table in histories. We don't expose this in general.
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# Searching based on hc.table_name without specifying an ID is slow, and the
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# details here shouldn't be visible anyway.
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if (array_key_exists('type', $q) and array_key_exists('id', $q) and $q['type'] == "notes") {
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$q['inner_type'] = $q['type'];
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$q['remote_id'] = $q['id'];
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unset($q['type']);
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unset($q['id']);
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}
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$query = History::none();
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$hc_conds = [];
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$hc_cond_params = [];
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if (!empty($q['user'])) {
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$user = User::where('name', $q['user'])->first();
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if ($user) {
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$query->where("histories.user_id = ?", $user->id);
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} else {
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$query->where("false");
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}
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}
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if (!empty($q['id'])) {
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$query->where("group_by_id = ?", $q['id']);
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}
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if (!empty($q['type'])) {
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$query->where("group_by_table = ?", $q['type']);
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}
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if (!empty($q['change'])) {
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$query->where("histories.id = ?", $q['change']);
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}
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if (!empty($q['inner_type'])) {
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$q['inner_type'] = $inflector->pluralize($q['inner_type']);
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$hc_conds[] = "hc.table_name = ?";
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$hc_cond_params[] = $q['inner_type'];
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}
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if (!empty($q['remote_id'])) {
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$hc_conds[] = "hc.remote_id = ?";
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$hc_cond_params[] = $q['remote_id'];
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}
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if ($q['keywords']) {
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$hc_conds[] = 'hc.value LIKE ?';
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$hc_cond_params[] = '%' . implode('%', $q['keywords']) . '%';
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}
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if (!empty($q['field']) and !empty($q['type'])) {
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# Look up a particular field change, eg. "type'posts' field'rating'".
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# XXX: The WHERE id IN (SELECT id...) used to implement this is slow when we don't have
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# anything } else { filtering the results.
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$field = $q['field'];
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$table = $q['type'];
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# For convenience:
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if ($field == "tags") {
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$field = "cached_tags";
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}
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# Look up the named class.
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if (!Versioned::is_versioned_class($cls)) {
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$query->where("false");
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} else {
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$hc_conds[] = "hc.column_name = ?";
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$hc_cond_params[] = $field;
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# A changes that has no previous value is the initial value for that object. Don't show
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# these changes unless they're different from the default for that field.
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list ($default_value, $has_default) = $cls::versioning()->get_versioned_default($field);
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if ($has_default) {
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$hc_conds[] = "(hc.previous_id IS NOT NULL OR value <> ?)";
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$hc_cond_params[] = $default_value;
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}
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}
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}
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if ($hc_conds) {
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array_unshift($hc_cond_params, 'histories.id IN (SELECT history_id FROM history_changes hc JOIN histories h ON (hc.history_id = h.id) WHERE ' . implode(" AND ", $hc_conds) . ')');
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call_user_func_array([$query, 'where'], $hc_cond_params);
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}
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if (!empty($q['type']) and empty($q['change'])) {
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$this->type = $q['type'];
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} else {
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$this->type = "all";
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}
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# 'specific_history' => showing only one history
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# 'specific_table' => showing changes only for a particular table
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# 'show_all_tags' => don't omit post tags that didn't change
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$this->options = [
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'show_all_tags' => $this->params()->show_all_tags == "1",
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'specific_object' => (!empty($q['type']) and !empty($q['id'])),
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'specific_history' => !empty($q['change']),
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];
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$this->options['show_name'] = false;
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if ($this->type != "all") {
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$cn = $inflector->classify($this->type);
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try {
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if (Versioned::is_versioned_class($cls) && class_exists($cn)) {
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$obj = new $cn();
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if (method_exists($obj, "pretty_name"))
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$this->options['show_name'] = true;
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}
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} catch (Rails\Loader\Exception\ExceptionInterface $e) {
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}
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}
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$this->changes = $query->order("histories.id DESC")
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->select('*')
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->paginate($this->page_number(), 20);
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# If we're searching for a specific change, force the display to the
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# type of the change we found.
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if (!empty($q['change']) && $this->changes->any()) {
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$this->type = $inflector->pluralize($this->changes[0]->group_by_table);
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}
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$this->render(['action' => 'index']);
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}
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public function undo()
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{
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$ids = explode(',', $this->params()->id);
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$this->changes = HistoryChange::emptyCollection();
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foreach ($ids as $id)
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$this->changes[] = HistoryChange::where("id = ?", $id)->first();
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$histories = [];
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$total_histories = 0;
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foreach ($this->changes as $change) {
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if (isset($histories[$change->history_id]))
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continue;
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$histories[$change->history_id] = true;
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$total_histories += 1;
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}
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if ($total_histories > 1 && !$this->current_user->is_privileged_or_higher()) {
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$this->respond_to_error("Only privileged users can undo more than one change at once", ['status' => 403]);
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return;
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}
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$errors = [];
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History::undo($this->changes, $this->current_user, $this->params()->redo == "1", $errors);
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$error_texts = [];
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$successful = 0;
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$failed = 0;
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foreach ($this->changes as $change) {
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$objectHash = spl_object_hash($change);
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if (empty($errors[$objectHash])) {
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$successful += 1;
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continue;
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}
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$failed += 1;
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switch ($errors[$objectHash]) {
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case 'denied':
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$error_texts[] = "Some changes were not made because you do not have access to make them.";
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break;
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}
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}
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$error_texts = array_unique($error_texts);
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$this->respond_to_success("Changes made.", ['action' => "index"], ['api' => ['successful' => $successful, 'failed' => $failed, 'errors' => $error_texts]]);
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}
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}
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