friendica_2021-01/mod/wall_upload.php

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<?php
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/**
* @file mod/wall_upload.php
* @brief Module for uploading a picture to the profile wall
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*
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* By default the picture will be stored in the photo album with the name Wall Photos.
* You can specify a different album by adding an optional query string "album="
* to the url
*/
use Friendica\App;
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use Friendica\Core\L10n;
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use Friendica\Core\System;
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use Friendica\Core\Config;
use Friendica\Database\DBA;
use Friendica\Model\Contact;
use Friendica\Model\Photo;
use Friendica\Object\Image;
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function wall_upload_post(App $a, $desktopmode = true)
{
logger("wall upload: starting new upload", LOGGER_DEBUG);
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$r_json = (x($_GET, 'response') && $_GET['response'] == 'json');
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$album = (x($_GET, 'album') ? notags(trim($_GET['album'])) : '');
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if ($a->argc > 1) {
if (!x($_FILES, 'media')) {
$nick = $a->argv[1];
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$r = q("SELECT `user`.*, `contact`.`id` FROM `user`
INNER JOIN `contact` on `user`.`uid` = `contact`.`uid`
WHERE `user`.`nickname` = '%s' AND `user`.`blocked` = 0
AND `contact`.`self` = 1 LIMIT 1",
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DBA::escape($nick)
);
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if (!DBA::isResult($r)) {
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if ($r_json) {
echo json_encode(['error' => L10n::t('Invalid request.')]);
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killme();
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}
return;
}
} else {
$user_info = api_get_user($a);
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$r = q("SELECT `user`.*, `contact`.`id` FROM `user`
INNER JOIN `contact` on `user`.`uid` = `contact`.`uid`
WHERE `user`.`nickname` = '%s' AND `user`.`blocked` = 0
AND `contact`.`self` = 1 LIMIT 1",
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DBA::escape($user_info['screen_name'])
);
}
} else {
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if ($r_json) {
echo json_encode(['error' => L10n::t('Invalid request.')]);
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killme();
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}
return;
}
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/*
* Setup permissions structures
*/
$can_post = false;
$visitor = 0;
$page_owner_uid = $r[0]['uid'];
$default_cid = $r[0]['id'];
$page_owner_nick = $r[0]['nickname'];
$community_page = (($r[0]['page-flags'] == Contact::PAGE_COMMUNITY) ? true : false);
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if ((local_user()) && (local_user() == $page_owner_uid)) {
$can_post = true;
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} else {
if ($community_page && remote_user()) {
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$contact_id = 0;
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if (is_array($_SESSION['remote'])) {
foreach ($_SESSION['remote'] as $v) {
if ($v['uid'] == $page_owner_uid) {
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$contact_id = $v['cid'];
break;
}
}
}
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if ($contact_id) {
$r = q("SELECT `uid` FROM `contact`
WHERE `blocked` = 0 AND `pending` = 0
AND `id` = %d AND `uid` = %d LIMIT 1",
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intval($contact_id),
intval($page_owner_uid)
);
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if (DBA::isResult($r)) {
$can_post = true;
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$visitor = $contact_id;
}
}
}
}
if (!$can_post) {
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if ($r_json) {
echo json_encode(['error' => L10n::t('Permission denied.')]);
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killme();
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}
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notice(L10n::t('Permission denied.') . EOL);
killme();
}
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if (!x($_FILES, 'userfile') && !x($_FILES, 'media')) {
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if ($r_json) {
echo json_encode(['error' => L10n::t('Invalid request.')]);
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}
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killme();
}
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$src = '';
$filename = '';
$filesize = 0;
$filetype = '';
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if (x($_FILES, 'userfile')) {
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$src = $_FILES['userfile']['tmp_name'];
$filename = basename($_FILES['userfile']['name']);
$filesize = intval($_FILES['userfile']['size']);
$filetype = $_FILES['userfile']['type'];
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} elseif (x($_FILES, 'media')) {
if (!empty($_FILES['media']['tmp_name'])) {
if (is_array($_FILES['media']['tmp_name'])) {
$src = $_FILES['media']['tmp_name'][0];
} else {
$src = $_FILES['media']['tmp_name'];
}
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}
if (!empty($_FILES['media']['name'])) {
if (is_array($_FILES['media']['name'])) {
$filename = basename($_FILES['media']['name'][0]);
} else {
$filename = basename($_FILES['media']['name']);
}
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}
if (!empty($_FILES['media']['size'])) {
if (is_array($_FILES['media']['size'])) {
$filesize = intval($_FILES['media']['size'][0]);
} else {
$filesize = intval($_FILES['media']['size']);
}
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}
if (!empty($_FILES['media']['type'])) {
if (is_array($_FILES['media']['type'])) {
$filetype = $_FILES['media']['type'][0];
} else {
$filetype = $_FILES['media']['type'];
}
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}
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}
if ($src == "") {
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if ($r_json) {
echo json_encode(['error' => L10n::t('Invalid request.')]);
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killme();
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}
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notice(L10n::t('Invalid request.').EOL);
killme();
}
// This is a special treatment for picture upload from Twidere
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if (($filename == "octet-stream") && ($filetype != "")) {
$filename = $filetype;
$filetype = "";
}
if ($filetype == "") {
$filetype = Image::guessType($filename);
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}
// If there is a temp name, then do a manual check
// This is more reliable than the provided value
$imagedata = getimagesize($src);
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if ($imagedata) {
$filetype = $imagedata['mime'];
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}
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logger("File upload src: " . $src . " - filename: " . $filename .
" - size: " . $filesize . " - type: " . $filetype, LOGGER_DEBUG);
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$maximagesize = Config::get('system', 'maximagesize');
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if (($maximagesize) && ($filesize > $maximagesize)) {
$msg = L10n::t('Image exceeds size limit of %s', formatBytes($maximagesize));
if ($r_json) {
echo json_encode(['error' => $msg]);
} else {
echo $msg. EOL;
}
@unlink($src);
killme();
}
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$imagedata = @file_get_contents($src);
$Image = new Image($imagedata, $filetype);
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if (!$Image->isValid()) {
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$msg = L10n::t('Unable to process image.');
if ($r_json) {
echo json_encode(['error' => $msg]);
} else {
echo $msg. EOL;
}
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@unlink($src);
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killme();
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}
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$Image->orient($src);
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@unlink($src);
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$max_length = Config::get('system', 'max_image_length');
if (!$max_length) {
$max_length = MAX_IMAGE_LENGTH;
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}
if ($max_length > 0) {
$Image->scaleDown($max_length);
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logger("File upload: Scaling picture to new size " . $max_length, LOGGER_DEBUG);
}
$width = $Image->getWidth();
$height = $Image->getHeight();
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$hash = Photo::newResource();
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$smallest = 0;
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// If we don't have an album name use the Wall Photos album
if (!strlen($album)) {
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$album = L10n::t('Wall Photos');
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}
$defperm = '<' . $default_cid . '>';
$r = Photo::store($Image, $page_owner_uid, $visitor, $hash, $filename, $album, 0, 0, $defperm);
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if (!$r) {
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$msg = L10n::t('Image upload failed.');
if ($r_json) {
echo json_encode(['error' => $msg]);
} else {
echo $msg. EOL;
}
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killme();
}
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if ($width > 640 || $height > 640) {
$Image->scaleDown(640);
$r = Photo::store($Image, $page_owner_uid, $visitor, $hash, $filename, $album, 1, 0, $defperm);
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if ($r) {
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$smallest = 1;
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}
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}
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if ($width > 320 || $height > 320) {
$Image->scaleDown(320);
$r = Photo::store($Image, $page_owner_uid, $visitor, $hash, $filename, $album, 2, 0, $defperm);
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if ($r && ($smallest == 0)) {
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$smallest = 2;
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}
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}
$basename = basename($filename);
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if (!$desktopmode) {
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$r = q("SELECT `id`, `datasize`, `width`, `height`, `type` FROM `photo`
WHERE `resource-id` = '%s'
ORDER BY `width` DESC LIMIT 1",
$hash
);
if (!$r) {
if ($r_json) {
echo json_encode(['error' => '']);
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killme();
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}
return false;
}
$picture = [];
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$picture["id"] = $r[0]["id"];
$picture["size"] = $r[0]["datasize"];
$picture["width"] = $r[0]["width"];
$picture["height"] = $r[0]["height"];
$picture["type"] = $r[0]["type"];
$picture["albumpage"] = System::baseUrl() . '/photos/' . $page_owner_nick . '/image/' . $hash;
$picture["picture"] = System::baseUrl() . "/photo/{$hash}-0." . $Image->getExt();
$picture["preview"] = System::baseUrl() . "/photo/{$hash}-{$smallest}." . $Image->getExt();
if ($r_json) {
echo json_encode(['picture' => $picture]);
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killme();
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}
logger("upload done", LOGGER_DEBUG);
return $picture;
}
logger("upload done", LOGGER_DEBUG);
if ($r_json) {
echo json_encode(['ok' => true]);
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killme();
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}
echo "\n\n" . '[url=' . System::baseUrl() . '/photos/' . $page_owner_nick . '/image/' . $hash . '][img]' . System::baseUrl() . "/photo/{$hash}-{$smallest}.".$Image->getExt()."[/img][/url]\n\n";
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killme();
// NOTREACHED
}