initial commit
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commit
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# Imgur Rescue Project
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In April 2023 the website imgur.com [announced](https://help.imgur.com/hc/en-us/articles/14415587638029/) it may delete old data/images that are rarely accessed and were uploaded without an account.
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This repository contains public versions of internal scripts used to extract imgur.com links from `yatwiki` and `archive`; download the images and metadata; and convert them to a `contented` database for ongoing read-only hosting.
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The following tools are available:
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- `archive-scrape`: extract imgur links from an [`archive`](https://code.ivysaur.me/archive) installation.
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- `yatwiki-scrape`: extract imgur links from a [`yatwiki`](https://code.ivysaur.me/yatwiki) installation.
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- `collect`: download imgur links and metadata, recursively following albums, with soft caching.
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- `irp2bolt`: convert the resulting imgur links and metadata into a Bolt database for use with [`contented`](https://code.ivysaur.me/contented).
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@ -0,0 +1,5 @@
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#!/bin/bash
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set -eu
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LC_ALL=C grep -RP 'http[^ ]+imgur\.com[^\b ]*' . -o -h | tr -d $'\r' | sed 's/http:/https:/' | sort | uniq > archive-urls.txt
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@ -0,0 +1,158 @@
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#!/usr/bin/php
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<?php
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error_reporting(E_ALL);
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define('IMGUR_CLIENT_ID', '546c25a59c58ad7'); // extract from any web interface pageview
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function is_png($data) {
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return (substr($data, 0, 4) === "\x89PNG");
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}
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function is_jpg($data) {
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if (substr($data, 0, 3) === "\xFF\xD8\xFF") {
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return true;
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}
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return str_contains(substr($data, 0, 64), "JFIF");
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}
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function is_gif($data) {
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return (substr($data, 0, 4) === "GIF8");
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}
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function is_mp4($data) {
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return str_contains(substr($data, 0, 64), "isom");
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}
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/**
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* @param $type 'media' or 'albums'
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*/
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function imgur_mediainfo(string $code, string $type) {
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// n.b. 'posts' is often a synonym for 'media' with the same result
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// There is also a /meta endpoint possible after {$code}
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$ret = file_get_contents("https://api.imgur.com/post/v1/{$type}/{$code}?client_id=" . IMGUR_CLIENT_ID . "&include=media");
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if ($ret === false) {
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throw new Exception("Failed API lookup for {$code} as {$type}");
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}
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if ($ret[0] !== '{') {
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throw new Exception("API result for {$code} as {$type} got unexpected body: {$ret}");
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}
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$obj = json_decode($ret, true);
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if (isset($obj['errors'])) {
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throw new Exception("API result for {$code} as {$type} got unexpected body: {$ret}");
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}
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if ( ($type === 'albums') !== $obj['is_album'] ) {
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throw new Exception("Unexpected type mismatch from API");
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}
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return $obj;
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}
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function imgur_download_single(string $code, string $type) {
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echo "Downloading {$code}...\n";
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if (file_exists("errors.{$type}/".$code)) {
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echo "skipping (known error)\n";
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return false;
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}
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if (! file_exists("metadata.{$type}/".$code)) {
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try {
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$metadata = imgur_mediainfo($code, $type);
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} catch (Exception $ex) {
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echo "WARNING: metadata download failed\n";
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echo (string)$ex . "\n";
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file_put_contents("errors.{$type}/".$code, json_encode([
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"message" => $ex->getMessage(),
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"failure_time" => date(DATE_RSS),
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]));
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return false;
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}
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file_put_contents("metadata.{$type}/".$code, json_encode($metadata));
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} else {
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$metadata = json_decode(file_get_contents("metadata.{$type}/".$code), true);
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}
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echo "code {$code} (type={$type}) contains ".$metadata['image_count']." media entries\n";
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if ($metadata['image_count'] == 0) {
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echo "WARNING: weird album with no images!\n";
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return true;
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}
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foreach($metadata['media'] as $single) {
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echo "- entry ".$single['id']."\n";
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if (file_exists("images/".$single['id'])) {
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echo "already exists (OK)\n";
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continue;
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}
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// Download whole URL
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$ret = file_get_contents($single['url']);
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if ($ret === false) {
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echo "download failed (WARNING)\n";
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continue;
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}
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if (! is_png($ret) && ! is_jpg($ret) && ! is_gif($ret) && ! is_mp4($ret)) {
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echo "unexpected result, not jpg/gif/png/mp4 (WARNING)\n";
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file_put_contents("images/".$single['id'].".INVALID-NOT-AN-IMAGE", $ret);
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continue;
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}
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if (strlen($ret) === 503 && md5($ret) == "d835884373f4d6c8f24742ceabe74946") {
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echo "fake image result for image not found (WARNING)\n";
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continue;
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}
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file_put_contents("images/".$single['id'], $ret);
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}
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// all done
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return true;
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}
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function main() {
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foreach(['images', 'metadata.albums', 'metadata.media', 'errors.albums', 'errors.media'] as $dirname) {
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if (! is_dir($dirname)) {
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mkdir($dirname);
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}
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}
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$urls = explode("\n", file_get_contents("all-urls.txt"));
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$matches = [];
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foreach($urls as $url) {
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if (preg_match("~^https://(i\\.|m\\.|img\\.|www\.)?imgur\\.com/([0-9a-zA-Z,]+)\\.?(jpg|jpeg|gif|webm|png|gifv|mp4)?(#.+)?$~", $url, $matches)) {
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foreach(explode(',', $matches[2]) as $single_id) {
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imgur_download_single($single_id, 'media');
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}
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} else if (preg_match("~^https://(i\\.|m\\.|img\\.|www\.)?imgur\\.com/(a/|gallery/|(?:r|t|topic)/[a-zA-Z0-9_]+/)?([0-9a-zA-Z,]+)\\.?(jpg|jpeg|gif|webm|png|gifv|mp4)?(#.+)?$~", $url, $matches)) {
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imgur_download_single($matches[3], 'albums');
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} else {
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echo "WARNING: Unsupported URL: {$url}\n";
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}
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}
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}
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main();
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@ -0,0 +1,32 @@
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#!/bin/bash
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echo "Current run:"
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echo -n "- Downloading: "
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fgrep 'Downloading' ./collect-logs.txt | wc -l
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echo -n "- Unsupported: "
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fgrep 'Unsupported' ./collect-logs.txt | wc -l
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echo -n "- 404/missing: "
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fgrep 'Failed API lookup' ./collect-logs.txt | wc -l
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#fgrep '404 Not Found' ./collect-logs.txt | wc -l
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#fgrep 'fake image result for image not found' ./collect-logs.txt | wc -l
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echo "- Distribution:"
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fgrep 'media entries' collect-logs.txt | cut -d' ' -f4- | sort | uniq -c
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echo ""
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echo "Full archive:"
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echo -n "- Known URLs: "
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cat all-urls.txt | wc -l
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echo -n "- 404/missing: "
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( ls errors.albums ; ls errors.media ) | wc -l
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echo -n "- Saved images: "
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ls images | wc -l
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echo -n "- Saved metadata: "
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( ls metadata.albums ; ls metadata.media ) | wc -l
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module irp2bolt
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go 1.19
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require (
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go.etcd.io/bbolt v1.3.7 // indirect
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golang.org/x/sys v0.4.0 // indirect
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)
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go.etcd.io/bbolt v1.3.7 h1:j+zJOnnEjF/kyHlDDgGnVL/AIqIJPq8UoB2GSNfkUfQ=
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go.etcd.io/bbolt v1.3.7/go.mod h1:N9Mkw9X8x5fupy0IKsmuqVtoGDyxsaDlbk4Rd05IAQw=
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golang.org/x/sys v0.4.0 h1:Zr2JFtRQNX3BCZ8YtxRE9hNJYC8J6I1MVbMg6owUp18=
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golang.org/x/sys v0.4.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
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@ -0,0 +1,272 @@
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package main
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import (
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"encoding/json"
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"fmt"
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"io/ioutil"
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"log"
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"os"
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"time"
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"go.etcd.io/bbolt"
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)
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type ImgurSingleMedia struct {
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ID string `json:"id"`
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Title string `json:"title"`
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Description string `json:"description"`
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MimeType string `json:"mime_type"`
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CreatedAt time.Time `json:"created_at"` // e.g. 2013-10-28T02:37:02Z
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Width int64 `json:"width"`
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Height int64 `json:"height"`
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Extension string `json:"ext"`
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}
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func (ism ImgurSingleMedia) InventName() string {
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ret := ism.Title
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if len(ism.Description) > 0 {
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if len(ret) > 0 {
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ret += " - "
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}
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ret += ism.Description
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}
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if len(ret) == 0 {
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// No name/description in either gallery nor in first image
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// Guess we just name it after the ID
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ret = ism.ID
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}
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ret += "." + ism.Extension
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return ret
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}
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type ImgurInfo struct {
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ID string `json:"id"`
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Title string `json:"title"`
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Description string `json:"description"`
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CreatedAt time.Time `json:"created_at"`
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Media []ImgurSingleMedia `json:"media"`
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}
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func (i ImgurInfo) AlbumJson() []byte {
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arr := make([]string, 0, len(i.Media))
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for _, m := range i.Media {
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arr = append(arr, m.ID)
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}
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bb, err := json.Marshal(arr)
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if err != nil {
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panic(err)
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}
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return bb
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}
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func (i ImgurInfo) InventName() string {
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ret := i.Title
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if len(i.Description) > 0 {
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if len(ret) > 0 {
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ret += " - "
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}
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ret += i.Description
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}
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if len(ret) > 0 {
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return ret // Title + description is pretty good for an album
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}
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if len(i.Media) > 0 {
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// Describe this album based on the first media instead
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return i.Media[0].InventName()
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}
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// No name/description in either gallery nor in first image
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// Guess we just name it after the ID
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return i.ID
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}
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type ContentedMetadata struct {
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FileHash string
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FileSize int64
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UploadTime time.Time
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UploadIP string
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Filename string
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MimeType string
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}
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func main() {
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db, err := bbolt.Open(fmt.Sprintf("output-%d.db", time.Now().Unix()), 0644, bbolt.DefaultOptions)
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if err != nil {
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panic(err)
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}
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err = db.Update(func(tx *bbolt.Tx) error {
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bb, err := tx.CreateBucketIfNotExists([]byte(`METADATA`))
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if err != nil {
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panic(err)
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}
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//
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// Media
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//
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media, err := os.ReadDir("../metadata.media")
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if err != nil {
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panic(err)
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}
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|
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var addMediaCount int64 = 0
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for _, mediaInfo := range media {
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infoJson, err := ioutil.ReadFile("../metadata.media/" + mediaInfo.Name())
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if err != nil {
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panic(err)
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}
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|
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var info ImgurInfo
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err = json.Unmarshal(infoJson, &info)
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||||
if err != nil {
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||||
panic(err)
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||||
}
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||||
|
||||
if len(info.Media) != 1 {
|
||||
panic(err)
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||||
}
|
||||
|
||||
// Ensure image file exists
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finfo, err := os.Stat("../images/" + mediaInfo.Name())
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if err != nil {
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log.Printf("Missing image %s for media %s, skipping", mediaInfo.Name(), mediaInfo.Name())
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continue
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// panic(err)
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}
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cinfoBytes, err := json.Marshal(ContentedMetadata{
|
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FileHash: mediaInfo.Name(),
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FileSize: finfo.Size(),
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UploadTime: info.CreatedAt,
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||||
UploadIP: "n/a",
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Filename: info.InventName(),
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MimeType: info.Media[0].MimeType,
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||||
})
|
||||
if err != nil {
|
||||
panic(err)
|
||||
}
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||||
|
||||
err = bb.Put([]byte(mediaInfo.Name()), cinfoBytes)
|
||||
if err != nil {
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||||
panic(err)
|
||||
}
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||||
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addMediaCount += 1
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||||
}
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||||
|
||||
log.Printf("Added %d media entries OK", addMediaCount)
|
||||
|
||||
//
|
||||
// Albums
|
||||
//
|
||||
|
||||
albums, err := os.ReadDir("../metadata.albums")
|
||||
if err != nil {
|
||||
panic(err)
|
||||
}
|
||||
|
||||
var addAlbumCount int64 = 0
|
||||
var addAlbumMediaCount int64 = 0
|
||||
var albumsWithNoImagesCount int64 = 0
|
||||
|
||||
for _, albuminfo := range albums {
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infoJson, err := ioutil.ReadFile("../metadata.albums/" + albuminfo.Name())
|
||||
if err != nil {
|
||||
panic(err)
|
||||
}
|
||||
|
||||
var info ImgurInfo
|
||||
err = json.Unmarshal(infoJson, &info)
|
||||
if err != nil {
|
||||
panic(err)
|
||||
}
|
||||
|
||||
if len(info.Media) == 0 {
|
||||
log.Printf("Album '%s' contains no images, allowing anyway", albuminfo.Name())
|
||||
albumsWithNoImagesCount += 1
|
||||
}
|
||||
|
||||
// Add gallery entries for each of the media elements
|
||||
|
||||
for _, mediaInfo := range info.Media {
|
||||
|
||||
// Ensure image file exists
|
||||
finfo, err := os.Stat("../images/" + mediaInfo.ID)
|
||||
if err != nil {
|
||||
log.Printf("Missing image %s for album %s, skipping", mediaInfo.ID, albuminfo.Name())
|
||||
continue
|
||||
// panic(err)
|
||||
}
|
||||
|
||||
cinfoBytes, err := json.Marshal(ContentedMetadata{
|
||||
FileHash: mediaInfo.ID,
|
||||
FileSize: finfo.Size(),
|
||||
UploadTime: info.CreatedAt,
|
||||
UploadIP: "n/a",
|
||||
Filename: mediaInfo.InventName(),
|
||||
MimeType: mediaInfo.MimeType,
|
||||
})
|
||||
if err != nil {
|
||||
panic(err)
|
||||
}
|
||||
|
||||
err = bb.Put([]byte(mediaInfo.ID), cinfoBytes)
|
||||
if err != nil {
|
||||
panic(err)
|
||||
}
|
||||
|
||||
addAlbumMediaCount += 1
|
||||
|
||||
}
|
||||
|
||||
// Add album entry for the overall album
|
||||
albumHash := `a/` + albuminfo.Name() // Use a/ prefix. This can't naturally happen in contented's filehash algorithm
|
||||
albumJson := info.AlbumJson()
|
||||
err = ioutil.WriteFile(albumHash, albumJson, 0644) // a/ subdirectory must exist
|
||||
if err != nil {
|
||||
panic(err)
|
||||
}
|
||||
|
||||
cinfoBytes, err := json.Marshal(ContentedMetadata{
|
||||
FileHash: albumHash,
|
||||
FileSize: int64(len(albumJson)),
|
||||
UploadTime: info.CreatedAt,
|
||||
UploadIP: "n/a",
|
||||
Filename: info.InventName(),
|
||||
MimeType: "contented/album",
|
||||
})
|
||||
if err != nil {
|
||||
panic(err)
|
||||
}
|
||||
|
||||
err = bb.Put([]byte(albumHash), cinfoBytes)
|
||||
if err != nil {
|
||||
panic(err)
|
||||
}
|
||||
|
||||
addAlbumCount += 1
|
||||
}
|
||||
|
||||
log.Printf("Added %d album entries OK with %d additional image entries", addAlbumCount, addMediaCount)
|
||||
|
||||
log.Printf("There are %d albums with no images", albumsWithNoImagesCount)
|
||||
|
||||
// Fully imported
|
||||
return nil
|
||||
})
|
||||
if err != nil {
|
||||
panic(err)
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,32 @@
|
|||
#!/usr/bin/php
|
||||
<?php
|
||||
|
||||
$db = new \PDO("sqlite:wiki.db");
|
||||
$matches = [];
|
||||
|
||||
$links = [];
|
||||
|
||||
foreach($db->query('SELECT id, body FROM articles') as $article) {
|
||||
$body = gzinflate($article['body']);
|
||||
|
||||
preg_match_all('~\[imgur\](.+?)\[~', $body, $matches);
|
||||
|
||||
if (count($matches)) {
|
||||
foreach($matches[1] as $short) {
|
||||
$links[] = 'https://i.imgur.com/'.$short;
|
||||
}
|
||||
}
|
||||
|
||||
// Inline links
|
||||
preg_match_all('~https?://[^ \t\n"><\]\[]+imgur.com[^ \t\n"><\]\[]*~', $body, $matches);
|
||||
if (count($matches)) {
|
||||
foreach($matches[0] as $link) {
|
||||
$links[] = $link;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// Output
|
||||
foreach($links as $link) {
|
||||
echo str_replace("https://i.imgur.com/http://i.imgur.com", "https://i.imgur.com", $link)."\n";
|
||||
}
|
||||
Loading…
Reference in New Issue