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datatable.directory/app/Http/Controllers/TableController.php

467 lines
15 KiB

<?php
namespace App\Http\Controllers;
use App\Models\Revision;
use App\Models\Row;
use App\Models\Table;
use App\Models\User;
use App\Tables\Changeset;
use App\Tables\Column;
use App\Tables\ColumnNumerator;
use App\Tables\CStructArrayExporter;
use App\Tables\CsvExporter;
use App\Tables\CXMacroExporter;
use App\Tables\JsonExporter;
use App\Tables\PhpExporter;
use App\Tables\RowNumerator;
use DB;
use Illuminate\Http\Request;
use Illuminate\Validation\Rule;
use MightyPork\Exceptions\NotApplicableException;
use MightyPork\Exceptions\SimpleValidationException;
use MightyPork\Utils\Utils;
/**
* Table view, creation, settings
*/
class TableController extends Controller
{
/**
* Helper to fetch a table by user and table name
*
* @param Request $request
* @param User $user
* @param string $table
* @return Table
*/
private function resolveTable(Request $request, User $user, string $table)
{
/** @var Table $tableModel */
$tableModel = $user->tables()->where('name', $table)->first();
if ($tableModel === null) abort(404, "No such table.");
return $tableModel;
}
/**
* Favourite a table
*/
public function favouriteTable(Request $request, User $user, string $table)
{
$tableModel = $this->resolveTable($request, $user, $table);
\user()->favouriteTables()->attach($tableModel);
return redirect($tableModel->viewRoute);
}
/**
* Un-favourite a table
*/
public function unfavouriteTable(Request $request, User $user, string $table)
{
$tableModel = $this->resolveTable($request, $user, $table);
\user()->favouriteTables()->detach($tableModel);
return redirect($tableModel->viewRoute);
}
/**
* Switch table's current revision
*/
public function revertTo(Request $request, User $user, string $table)
{
$input = $this->validate($request, [
'rev' => 'int'
]);
$tableModel = $this->resolveTable($request, $user, $table);
$this->authorize('edit', $tableModel);
$revisionNum = (int)$input->rev;
$revision = $tableModel->revisions()->orderBy('created_at')->skip($revisionNum - 1)->first();
if ($revision === null) abort(404, "No such revision");
$tableModel->revision()->associate($revision);
$tableModel->save();
return redirect($tableModel->revisionsRoute);
}
/**
* Show a table
*/
public function view(Request $request, User $user, string $table)
{
$input = $this->validate($request, [
'rev' => 'nullable|int'
]);
/** @var Table $tableModel */
$tableModel = $user->tables()->withCount(['favourites', 'forks', 'revisions', 'comments'])
->where('name', $table)->first();
if ($tableModel === null) abort(404, "No such table.");
// option to show other revisions
$revisionNum = $tableModel->revisions_count;
if ($input->has('rev')) {
$revisionNum = (int)$input->rev;
$revision = $tableModel->revisions()->orderBy('created_at')->skip($revisionNum - 1)->first();
if ($revision === null) abort(404, "No such revision");
} else {
$revision = $tableModel->revision;
}
$this->countTableVisit($request, $tableModel);
$columns = Column::columnsFromJson($revision->columns);
$rq = $revision->rowsData($columns);
if (count($columns)) $rq = $rq->sortByCol($columns[0]);
$rows = $rq->paginate(25, []);
Row::disableCasts();
return view('table.view', [
'table' => $tableModel,
'revision' => $revision,
'revisionNum' => $revisionNum,
'proposals_count' => $tableModel->proposals()->unmerged($tableModel)->count(),
'columns' => $columns,
'rows' => $rows,
]);
}
/**
* Delete a table
*/
public function delete(Request $request, User $user, string $table)
{
$tableModel = $this->resolveTable($request, $user, $table);
$this->authorize('delete', $tableModel);
if ($request->get('table-name', null) !== $table) {
return $this->backWithErrors(['table-name' => 'Fill table name']);
}
$tableModel->delete();
return redirect(route('profile.view', $user->name));
}
/**
* Show a form for creating a new table
*/
public function create()
{
$exampleData = "";
$columns = Column::columnsFromJson([
['id' => 1, 'name' => 'column_1', 'type' => 'string', 'title' => 'First Column'],
]);
return view('table.create', [
'exampleColumns' => '',
'columns' => $columns,
'exampleData' => $exampleData,
]);
}
/**
* Show table settings edit form
*/
public function settings(Request $request, User $user, string $table)
{
$tableModel = $this->resolveTable($request, $user, $table);
$this->authorize('edit', $tableModel);
return view('table.conf', [
'table' => $tableModel,
]);
}
/**
* Store modified table settings
*/
public function storeSettings(Request $request, User $user, string $table)
{
$tableModel = $this->resolveTable($request, $user, $table);
$this->authorize('edit', $tableModel);
$input = $this->validate($request, [
'name' => [
'required',
VALI_NAME,
],
'title' => ['required', VALI_LINE],
'description' => ['nullable', VALI_TEXT],
'license' => ['nullable', VALI_TEXT],
'origin' => ['nullable', VALI_TEXT],
]);
$otherTableNames = $user->tables()->get(['name'])->pluck('name')->diff([$table])->all();
if (in_array($input->name, $otherTableNames)) {
return $this->backWithErrors(['name' => "You already have a table called \"$input->name\""]);
}
$tableModel->fill($input->all());
$tableModel->save();
flash()->success('Table settings saved');
return redirect($tableModel->viewRoute); // the route now changed
}
/**
* List of table revisions
*/
public function viewRevisions(Request $request, User $user, string $table)
{
$tableModel = $this->resolveTable($request, $user, $table);
$revisions = $tableModel->revisions()->orderBy('created_at', 'desc')->get();
return view('table.revisions', [
'table' => $tableModel,
'revisions' => $revisions,
]);
}
/**
* List of table favouriting users
*/
public function viewFavourites(Request $request, User $user, string $table)
{
$tableModel = $this->resolveTable($request, $user, $table);
$users = $tableModel->favouritingUsers()->orderBy('title')->get();
return view('table.favourites', [
'table' => $tableModel,
'users' => $users,
]);
}
/**
* Store a newly created table (save form)
*/
public function storeNew(Request $request)
{
/** @var User $u */
$u = \Auth::user();
$input = $this->validate($request, [
'name' => [
'required',
VALI_NAME,
],
'title' => ['required', VALI_LINE],
'description' => ['nullable', VALI_TEXT],
'license' => ['nullable', VALI_TEXT],
'origin' => ['nullable', VALI_TEXT],
'columns' => 'required|json',
'data' => 'string|nullable',
]);
// Check if table name is unique for user
if ($u->hasTable($input->name)) {
return $this->backWithErrors([
'name' => "You already have a table called \"$input->name\"",
]);
}
// --- COLUMNS ---
// Parse and validate the columns specification
/** @var Column[] $columns */
$columns = [];
$col_names = []; // for checking duplicates
$colsArray = fromJSON($input->columns);
// prevent griefing via long list of columns
if (count($colsArray) > 100) return $this->backWithErrors(['columns' => "Too many columns"]);
foreach ($colsArray as $colObj) {
// ensure column has a title
if (!isset($colObj->title)) {
$colObj->title = $colObj->name;
}
try {
if (in_array($colObj->name, $col_names)) {
return $this->backWithErrors(['columns' => "Duplicate column: $colObj->name"]);
}
$col_names[] = $colObj->name;
$columns[] = new Column($colObj);
} catch (\Exception $e) {
// validation errors from the Column constructor
return $this->backWithErrors(['columns' => $e->getMessage()]);
}
}
if (count($columns) == 0) {
return $this->backWithErrors(['columns' => "Define at least one column"]);
}
// Now assign column IDs
$columnNumerator = new ColumnNumerator(count($columns));
foreach ($columns as $column) {
$column->setID($columnNumerator->next());
}
// --- DATA ---
$fname = 'csv-file';
$dataCsvLines = [];
if ($request->hasFile($fname)) {
try {
$file = $request->file($fname);
if ($file->isValid() && $file->isReadable()) {
$handle = $file->openFile();
$dataCsvLines = Utils::csvToArray($handle);
if (empty($dataCsvLines)) throw new \Exception("Failed to parse CSV file.");
$handle = null;
} else {
throw new \Exception("File not valid.");
}
} catch (\Exception $e) {
return $this->backWithErrors(['csv-file' => $e->getMessage()]);
}
}
else if ($input->data) {
try {
$text = trim($input->data);
if (!empty($text)) {
$dataCsvLines = Utils::csvToArray($text);
}
} catch (\Exception $e) {
return $this->backWithErrors(['data' => $e->getMessage()]);
}
}
// Preparing data to insert into the Rows table
$rowsToInsert = null;
$rowNumerator = null;
try {
$rowsToInsert = (new Changeset)->csvToRowsArray($columns, $dataCsvLines, false)->all();
} catch (\Exception $e) {
return $this->backWithErrors(['data' => $e->getMessage()]);
}
// --- STORE TO DB ---
/* Fields for the new Revision instance */
$revisionFields = [
'note' => "Initial revision of table $u->name/$input->name",
'columns' => $columns,
'row_count' => count($rowsToInsert),
];
/* Fields for the new Table instance */
$tableFields = [
'owner_id' => $u->id,
'name' => $input->name,
'title' => $input->title,
'description' => $input->description,
'license' => $input->license,
'origin' => $input->origin,
];
/** @var Table $table */
$table = null;
\DB::transaction(function () use ($revisionFields, $tableFields, $rowsToInsert, &$table) {
$newRevision = Revision::create($revisionFields);
$tableFields['revision_id'] = $newRevision->id; // current revision (not-null constraint on this FK)
$table = Table::create($tableFields);
// Attach the revision to the table, set as current
$table->revisions()->attach($newRevision);
$table->revision()->associate($newRevision);
// Spawn rows, linked to the revision
if (!empty($rowsToInsert)) {
// this replicates the code in Proposal->toRevision
$conn = DB::connection();
$prepared = $conn->getPdo()->prepare('INSERT INTO rows (data) VALUES (?)');
foreach (array_chunk($rowsToInsert, 10000) as $i => $chunk) {
$ids = [];
foreach ($chunk as $newRow) {
$prepared->execute([json_encode($newRow)]);
$ids[] = $conn->getPdo()->lastInsertId();
}
$qms = rtrim(str_repeat('('.$newRevision->id.', ?),', count($ids)), ',');
$conn->statement('INSERT INTO revision_row_pivot (revision_id, row_id) VALUES '.$qms.';',
$ids);
}
}
});
return redirect($table->viewRoute);
}
/**
* Check unique visit, filter bots / scripts, and increment visits count.
*
* @param Request $request
* @param Table $table
*/
private function countTableVisit(Request $request, Table $table)
{
$cookieName = "view_{$table->owner->name}_{$table->name}";
if (!$request->cookie($cookieName, false)) {
$ua = $request->userAgent();
// Filter out suspicious user agents
if (! str_contains(strtolower($ua), Controller::BOT_USER_AGENTS)) {
$table->countVisit();
\Cookie::queue($cookieName, true, 24*60); // in minutes
}
}
}
/**
* Simple export via a preset
*
* @param Request $request
* @param User $user
* @param string $table
*/
public function export(Request $request, User $user, string $table)
{
$tableModel = $this->resolveTable($request, $user, $table);
$exporter = null;
switch ($request->get('format')) {
case 'json':
$exporter = new JsonExporter($tableModel);
break;
case 'csv':
$exporter = new CsvExporter($tableModel);
break;
case 'csv-tab':
$exporter = (new CsvExporter($tableModel))->withDelimiter("\t");
break;
case 'c':
$exporter = new CStructArrayExporter($tableModel);
break;
case 'xmacro':
$noq = explode(',', $request->input('noq',''));
$exporter = (new CXMacroExporter($tableModel))->noQuotesAround($noq);
break;
case 'php':
$exporter = new PhpExporter($tableModel);
break;
case 'js':
$exporter = (new JsonExporter($tableModel))->withJsWrapper();
break;
default:
abort(400, "Unspecified or unknown format.");
}
$dl = Utils::parseBool($request->get('dl', false));
$exporter->exportToBrowser($dl);
}
}