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// ==UserScript==
// @name Unedit and Undelete for Reddit
// @namespace http://tampermonkey.net/
// @version 3.9.4
// @description Creates the option next to edited and deleted Reddit comments/posts to show the original comment from before it was edited
// @author Jonah Lawrence (DenverCoder1)
// @match *://*reddit.com/*
// @include https://*.reddit.com/*
// @include https://reddit.com/*
// @grant none
// @require https://cdn.jsdelivr.net/npm/showdown@2.1.0/dist/showdown.min.js
// @license MIT
// ==/UserScript==
/* jshint esversion: 8 */
(function () {
"use strict";
/**
* Whether or not we are on old reddit and not redesign.
* This will be set in the "load" event listener.
* @type {boolean}
*/
let isOldReddit = false;
/**
* Timeout to check for new edited comments on page.
* This will be updated when scrolling.
* @type {number?}
*/
let scriptTimeout = null;
/**
* The element that is currently requesting content
* @type {Element?}
*/
let currentLoading = null;
/**
* List of submission ids of edited posts.
* Used on Reddit redesign since the submissions are not marked as such.
* This is set in the "load" event listener from the Reddit JSON API.
* @type {Array<{id: string, edited: float}>}
*/
let editedSubmissions = [];
/**
* The current URL that is being viewed.
* On Redesign, this can change without the user leaving page,
* so we want to look for new edited submissions if it changes.
* @type {string}
*/
let currentURL = window.location.href;
/**
* Showdown markdown converter
* @type {showdown.Converter}
*/
const mdConverter = new showdown.Converter();
/**
* Logging methods for displaying formatted logs in the console.
*
* logging.info("This is an info message");
* logging.warn("This is a warning message");
* logging.error("This is an error message");
* logging.table({a: 1, b: 2, c: 3});
*/
const logging = {
INFO: "info",
WARN: "warn",
ERROR: "error",
TABLE: "table",
/**
* Log a message to the console
* @param {string} level The console method to use e.g. "log", "info", "warn", "error", "table"
* @param {...string} messages - Any number of messages to log
*/
_format_log(level, ...messages) {
const logger = level in console ? console[level] : console.log;
logger(`%c[unedit-for-reddit] %c[${level.toUpperCase()}]`, "color: #00b6b6", "color: #888800", ...messages);
},
/**
* Log an info message to the console
* @param {...string} messages - Any number of messages to log
*/
info(...messages) {
logging._format_log(this.INFO, ...messages);
},
/**
* Log a warning message to the console
* @param {...string} messages - Any number of messages to log
*/
warn(...messages) {
logging._format_log(this.WARN, ...messages);
},
/**
* Log an error message to the console
* @param {...string} messages - Any number of messages to log
*/
error(...messages) {
logging._format_log(this.ERROR, ...messages);
},
/**
* Log a table to the console
* @param {Object} data - The table to log
*/
table(data) {
logging._format_log(this.TABLE, data);
},
};
/**
* Find the ID of a comment or submission.
* @param {Element} innerEl An element inside the comment.
* @returns {string} The Reddit ID of the comment.
*/
function getPostId(innerEl) {
let postId = "";
// redesign
if (!isOldReddit) {
const post = innerEl?.closest("[class*='t1_'], [class*='t3_']");
postId = Array.from(post.classList).filter(function (el) {
return el.indexOf("t1_") > -1 || el.indexOf("t3_") > -1;
})[0];
}
// old reddit
else {
// old reddit comment
postId = innerEl?.parentElement?.parentElement?.parentElement?.id.replace("thing_", "");
// old reddit submission
if (!postId && isInSubmission(innerEl)) {
const match = window.location.href.match(/comments\/([A-Za-z0-9]{5,8})\//);
postId = match ? match[1] : null;
// submission in list view
if (!postId) {
const thing = innerEl.closest(".thing");
postId = thing?.id.replace("thing_", "");
}
}
// if still not found, check for the .reportform element
if (!postId) {
postId = innerEl.parentElement.parentElement
.getElementsByClassName("reportform")[0]
.className.replace(/.*t1/, "t1");
}
}
return postId;
}
/**
* Get the container of the comment or submission body for appending the original comment to.
* @param {string} postId The ID of the comment or submission
* @returns {Element} The container element of the comment or submission body.
*/
function getPostBodyElement(postId) {
let bodyEl = null,
baseEl = null;
// redesign
if (!isOldReddit) {
baseEl = document.querySelector(`#${postId}, .Comment.${postId}`);
// in post preview popups, the id will appear again but in #overlayScrollContainer
const popupEl = document.querySelector(`#overlayScrollContainer .Post.${postId}`);
baseEl = popupEl ? popupEl : baseEl;
if (baseEl) {
if (baseEl.getElementsByClassName("RichTextJSON-root").length > 0) {
bodyEl = baseEl.getElementsByClassName("RichTextJSON-root")[0];
} else if (isInSubmission(baseEl) && baseEl?.firstElementChild?.lastElementChild) {
bodyEl = baseEl.firstElementChild.lastElementChild;
} else {
bodyEl = baseEl;
}
}
}
// old reddit
else {
// old reddit comments
baseEl = document.querySelector(`form[id*='${postId}'] .md`);
if (baseEl?.closest(".entry")) {
bodyEl = baseEl;
} else {
baseEl = document.querySelector(".report-" + postId);
bodyEl = baseEl ? baseEl.closest(".entry").querySelector(".usertext") : null;
}
// old reddit submissions
if (!bodyEl) {
bodyEl =
document.querySelector("div[data-url] .entry form .md") ||
document.querySelector("div[data-url] .entry form .usertext-body");
}
// link view
if (!bodyEl) {
bodyEl = document.querySelector(`.id-${postId}`);
}
}
return bodyEl;
}
/**
* Check if surrounding elements imply element is in a selftext submission.
* @param {Element} innerEl An element inside the post to check.
* @returns {boolean} Whether or not the element is in a selftext submission
*/
function isInSubmission(innerEl) {
const selectors = [
"a.thumbnail", // old reddit on profile page or list view
"div[data-url]", // old reddit on submission page
".Post", // redesign
];
return Boolean(innerEl.closest(selectors.join(", ")));
}
/**
* Check if the element bounds are within the window bounds.
* @param {Element} element The element to check
* @returns {boolean} Whether or not the element is within the window
*/
function isInViewport(element) {
const rect = element.getBoundingClientRect();
return (
rect.top >= 0 &&
rect.left >= 0 &&
rect.bottom <= (window.innerHeight || document.documentElement.clientHeight) &&
rect.right <= (window.innerWidth || document.documentElement.clientWidth)
);
}
/**
* Create a new paragraph containing the body of the original comment/post.
* @param {Element} commentBodyElement The container element of the comment/post body.
* @param {string} postType The type of post - "comment" or "post" (submission)
* @param {object} postData The archived data of the original comment/post.
*/
function showOriginalComment(commentBodyElement, postType, postData) {
const originalBody = typeof postData?.body === "string" ? postData.body : postData?.selftext;
// create paragraph element
const origBodyEl = document.createElement("p");
origBodyEl.className = "og";
// set text
origBodyEl.innerHTML = mdConverter.makeHtml("\n\n### Original " + postType + ":\n\n" + originalBody);
// paragraph styling
origBodyEl.style.opacity = 0.96;
origBodyEl.style.fontSize = "14px";
origBodyEl.style.background = "#fff59d";
origBodyEl.style.padding = "16px";
origBodyEl.style.color = "black";
origBodyEl.style.lineHeight = "20px";
// author and date details
const detailsEl = document.createElement("div");
detailsEl.style.fontSize = "12px";
detailsEl.appendChild(document.createTextNode("Posted by "));
const authorEl = document.createElement("a");
authorEl.href = `/user/${postData.author}`;
authorEl.innerText = postData.author;
detailsEl.appendChild(authorEl);
detailsEl.appendChild(document.createTextNode(" ยท "));
const dateEl = document.createElement("a");
dateEl.href = postData.permalink;
dateEl.title = new Date(postData.created_utc * 1000).toString();
dateEl.innerText = getRelativeTime(postData.created_utc);
detailsEl.appendChild(dateEl);
// append to original comment
origBodyEl.appendChild(document.createElement("hr"));
origBodyEl.appendChild(detailsEl);
if (commentBodyElement.lastElementChild.className !== 'og') {
commentBodyElement.appendChild(origBodyEl);
}
// scroll into view
setTimeout(function () {
if (!isInViewport(origBodyEl)) {
origBodyEl.scrollIntoView({ behavior: "smooth" });
}
}, 500);
// Redesign
if (!isOldReddit) {
// Make sure collapsed submission previews are expanded to not hide the original comment.
commentBodyElement.parentElement.style.maxHeight = "unset";
}
// Old reddit
else {
// If the comment is collapsed, expand it so the original comment is visible
expandComment(commentBodyElement);
}
}
/**
* Expand comment if it is collapsed (on old reddit only).
* @param {Element} innerEl An element inside the comment.
*/
function expandComment(innerEl) {
const collapsedComment = innerEl.closest(".collapsed");
if (collapsedComment) {
collapsedComment.classList.remove("collapsed");
collapsedComment.classList.add("noncollapsed");
}
}
/**
* Create a link to view the original comment/post.
* @param {Element} innerEl An element inside the comment or post to create a link for.
*/
function createLink(innerEl) {
// if there is already a link, don't create another
if (innerEl.parentElement.querySelector("a.showOriginal")) {
return;
}
// create link to "Show orginal"
const showLinkEl = document.createElement("a");
showLinkEl.innerText = "Show original";
showLinkEl.className = innerEl.className + " showOriginal";
showLinkEl.style.textDecoration = "underline";
showLinkEl.style.cursor = "pointer";
showLinkEl.style.marginLeft = "6px";
innerEl.parentElement.appendChild(showLinkEl);
innerEl.classList.add("match");
// find id of selected comment or submission
const postId = getPostId(showLinkEl);
showLinkEl.alt = `View original post for ID ${postId}`;
if (!postId) {
showLinkEl.style.color = "#dd2c00";
}
// click event
showLinkEl.addEventListener(
"click",
async function () {
// allow only 1 request at a time
if (typeof currentLoading != "undefined" && currentLoading !== null) {
return;
}
// create url for getting comment/post from pushshift api
const idURL = isInSubmission(this)
? "https://api.pushshift.io/reddit/search/submission/?ids=" +
postId +
"&sort=desc&sort_type=created_utc&fields=selftext,author,id,created_utc,permalink"
: "https://api.pushshift.io/reddit/search/comment/?ids=" +
postId +
"&sort=desc&sort_type=created_utc&fields=body,author,id,link_id,created_utc,permalink";
// create url for getting author comments/posts from pushshift api
const author = this.parentElement.querySelector("a[href*=user]")?.innerText;
const authorURL = isInSubmission(this)
? "https://api.pushshift.io/reddit/search/submission/?author=" +
author +
"&size=200&sort=desc&sort_type=created_utc&fields=selftext,author,id,created_utc,permalink"
: "https://api.pushshift.io/reddit/search/comment/?author=" +
author +
"&size=200&sort=desc&sort_type=created_utc&fields=body,author,id,link_id,created_utc,permalink";
// set loading status
currentLoading = this;
this.innerHTML = "loading...";
logging.info("Fetching from " + idURL + " and " + authorURL);
// request from pushshift api
await Promise.all([
fetch(idURL)
.then((resp) => resp.json())
.catch((error) => {
logging.error("Error:", error);
}),
fetch(authorURL)
.then((resp) => resp.json())
.catch((error) => {
logging.error("Error:", error);
}),
])
.then((responses) => {
responses.forEach((out) => {
// locate the comment that was being loaded
const loading = currentLoading;
// exit if already found
if (loading.innerHTML === "") {
return;
}
// locate comment body
const commentBodyElement = getPostBodyElement(postId);
const post = out?.data?.find((p) => p?.id === postId?.split("_").pop());
logging.info("Response:", { author, id: postId, post, data: out?.data });
// check that comment was fetched and body element exists
if (!commentBodyElement) {
// the comment body element was not found
loading.innerHTML = "body element not found";
logging.error("Body element not found:", out);
} else if (typeof post?.body === "string") {
// create new paragraph containing the body of the original comment
showOriginalComment(commentBodyElement, "comment", post);
// remove loading status from comment
loading.innerHTML = "";
logging.info("Successfully loaded comment.");
} else if (typeof post?.selftext === "string") {
// check if result has selftext instead of body (it is a submission post)
// create new paragraph containing the selftext of the original submission
showOriginalComment(commentBodyElement, "post", post);
// remove loading status from post
loading.innerHTML = "";
logging.info("Successfully loaded post.");
} else if (out?.data?.length === 0) {
// data was returned empty
loading.innerHTML = "not found";
logging.warn("No results:", out);
} else if (out?.data?.length > 0) {
// no matching comment/post was found in the data
loading.innerHTML = "not found";
logging.warn("No matching post:", out);
} else {
// other issue occurred with displaying comment
loading.innerHTML = "fetch failed";
logging.error("Fetch failed:", out);
}
});
})
.catch(function (err) {
throw err;
});
// reset status
currentLoading = null;
},
false
);
}
/**
* Convert unix timestamp in seconds to a relative time string (e.g. "2 hours ago").
* @param {number} timestamp A unix timestamp in seconds.
* @returns {string} A relative time string.
*/
function getRelativeTime(timestamp) {
const time = new Date(timestamp * 1000);
const now = new Date();
const seconds = Math.round((now.getTime() - time.getTime()) / 1000);
const minutes = Math.round(seconds / 60);
const hours = Math.round(minutes / 60);
const days = Math.round(hours / 24);
const months = Math.round(days / 30.5);
const years = Math.round(days / 365);
if (years > 0 && months >= 12) {
return `${years} ${years === 1 ? "year" : "years"} ago`;
}
if (months > 0 && days >= 30) {
return `${months} ${months === 1 ? "month" : "months"} ago`;
}
if (days > 0 && hours >= 24) {
return `${days} ${days === 1 ? "day" : "days"} ago`;
}
if (hours > 0 && minutes >= 60) {
return `${hours} ${hours === 1 ? "hour" : "hours"} ago`;
}
if (minutes > 0 && seconds >= 60) {
return `${minutes} ${minutes === 1 ? "minute" : "minutes"} ago`;
}
return "just now";
}
/**
* Locate comments and add links to each.
*/
function findEditedComments() {
// when function runs, cancel timeout
if (scriptTimeout) {
scriptTimeout = null;
}
// list elements to check for edited or deleted status
let selectors = [],
elementsToCheck = [],
editedComments = [];
// redesign
if (!isOldReddit) {
// check for edited/deleted comments and deleted submissions
selectors = [
".Comment div:first-of-type span:not(.found)", // Comments "edited..." or "Comment deleted/removed..."
".Post div div div:last-of-type div ~ div:last-of-type:not(.found)", // Submissions "It doesn't appear in any feeds..." message
];
elementsToCheck = Array.from(document.querySelectorAll(selectors.join(", ")));
editedComments = elementsToCheck.filter(function (el) {
el.classList.add("found");
return (
!el.children.length && // we only care about the element if it has no children
(el.innerText.substring(0, 6) === "edited" || // include edited comments
el.innerText.substring(0, 15) === "Comment deleted" || // include comments deleted by user
el.innerText.substring(0, 15) === "Comment removed" || // include comments removed by moderator
el.innerText.substring(0, 30) === "It doesn't appear in any feeds" || // include deleted submissions
el.innerText.substring(0, 23) == "Moderators remove posts") // include submissions removed by moderators
);
});
// Edited submissions found using the Reddit API
editedSubmissions.forEach((submission) => {
const postId = submission.id;
const editedAt = submission.edited;
selectors = [
`#t3_${postId} > div:first-of-type > div:nth-of-type(2) > div:first-of-type > div:first-of-type > span:first-of-type:not(.found)`, // Submission page
`#t3_${postId} > div:last-of-type[data-click-id] > div:first-of-type > div:first-of-type > div:first-of-type:not(.found)`, // Subreddit listing view
`.Post.t3_${postId} > div:last-of-type[data-click-id] > div:first-of-type > div:nth-of-type(2) > div:first-of-type:not(.found)`, // Profile/home listing view
`.Post.t3_${postId}:not(.scrollerItem) > div:first-of-type > div:nth-of-type(2) > div:nth-of-type(2) > div:first-of-type > div:first-of-type:not(.found)`, // Preview popup
];
Array.from(document.querySelectorAll(selectors.join(", "))).forEach((el) => {
el.classList.add("found");
editedComments.push(el);
// display when the post was edited
const editedDateElement = document.createElement("span");
editedDateElement.classList.add("edited-date");
editedDateElement.style.fontStyle = "italic";
editedDateElement.innerText = ` \u00b7 edited ${getRelativeTime(editedAt)}`; // middle-dot = \u00b7
el.parentElement.appendChild(editedDateElement);
});
});
// If the url has changed, check for edited submissions again
// This is an async fetch that will check for edited submissions again when it is done
if (currentURL !== window.location.href) {
logging.info(`URL changed from ${currentURL} to ${window.location.href}`);
currentURL = window.location.href;
checkForEditedSubmissions();
}
}
// old Reddit
else {
selectors = [
".entry p.tagline time:not(.found)", // Comment or Submission "last edited" timestamp
".entry p.tagline em:not(.found)", // Comment "[deleted]" author
"div[data-url] p.tagline span:first-of-type:not(.found)", // Submission "[deleted]" author
"div[data-url] .usertext-body em:not(.found)", // Submission "[removed]" body
];
elementsToCheck = Array.from(document.querySelectorAll(selectors.join(", ")));
editedComments = elementsToCheck.filter(function (el) {
el.classList.add("found");
return (
el.title.substring(0, 11) === "last edited" || // include edited comments or submissions
el.innerText === "[deleted]" || // include comments or submissions deleted by user
el.innerText === "[removed]" // include comments or submissions removed by moderator
);
});
}
// create links
editedComments.forEach(function (el) {
// for removed submissions, add the link to an element in the tagline instead of the body
if (el.closest(".usertext-body") && el.innerText === "[removed]") {
el = el.closest(".entry")?.querySelector("p.tagline span:first-of-type") || el;
}
createLink(el);
});
}
/**
* If the script timeout is not already set, set it and
* run the findEditedComments in a second, otherwise do nothing.
*/
function waitAndFindEditedComments() {
if (!scriptTimeout) {
scriptTimeout = setTimeout(findEditedComments, 1000);
}
}
/**
* Check for edited submissions using the Reddit JSON API.
*
* Since the Reddit Redesign website does not show if a submission was edited,
* we will check the data in the Reddit JSON API for the information.
*/
function checkForEditedSubmissions() {
// don't need to check if we're not on a submission page or list view
if (!document.querySelector(".Post, .ListingLayout-backgroundContainer")) {
return;
}
const match = /^https?:.*?reddit.com(\/r\/[^?]+)?([?]?.*)$/.exec(window.location.href);
if (match?.length < 3) {
return;
}
const jsonUrl = `https://www.reddit.com${match[1]}.json${match[2]}`;
logging.info(`Fetching additional info from ${jsonUrl}`);
fetch(jsonUrl)
.then(function (response) {
if (!response.ok) {
throw new Error(`${response.status} ${response.statusText}`);
}
return response.json();
})
.then(function (data) {
logging.info("Response:", data);
const out = data?.length ? data[0] : data;
const children = out?.data?.children;
if (children) {
editedSubmissions = children
.filter(function (post) {
return post.kind === "t3" && post.data.edited;
})
.map(function (post) {
return {
id: post.data.id,
edited: post.data.edited,
};
});
logging.info("Edited submissions:", editedSubmissions);
setTimeout(findEditedComments, 1000);
}
})
.catch(function (error) {
logging.error("Error fetching additional info:", error);
});
}
// check for new comments when you scroll
window.addEventListener("scroll", waitAndFindEditedComments, true);
// check for new comments when you click
document.body.addEventListener("click", waitAndFindEditedComments, true);
// add additional styling, find edited comments, and set old reddit status on page load
window.addEventListener("load", function () {
// determine if reddit is old or redesign
isOldReddit = /old\.reddit/.test(window.location.href) || !!document.querySelector("#header-img");
// Reddit redesign
if (!isOldReddit) {
// fix styling of created paragraphs in new reddit
document.head.insertAdjacentHTML(
"beforeend",
`<style>
p.og pre {
font-family: monospace;
background: #fff59d;
padding: 6px;
margin: 6px 0;
color: black;
}
p.og h1 {
font-size: 2em;
}
p.og h2 {
font-size: 1.5em;
}
p.og>h3:first-child {
font-weight: bold;
margin-bottom: 0.5em;
}
p.og h3 {
font-size: 1.17em;
}
p.og h4 {
font-size: 1em;
}
p.og h5 {
font-size: 0.83em;
}
p.og h6 {
font-size: 0.67em;
}
p.og a {
color: #3e88a0;
text-decoration: underline;
}
p.og summary {
cursor: pointer;
}
p.og hr {
border: none;
border-bottom: 1px solid #666;
background: transparent;
}
</style>`
);
// check for edited submissions
checkForEditedSubmissions();
}
// find edited comments
findEditedComments();
});
})();