ronau/slack-files-cleanup.html

## slack-files-cleanup.html
<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8"/>
    <title>Cleanup files shared on Slack</title>

    <style type="text/css">
        body {
            font-family: Arial, sans-serif;
            max-width: 50em;
            margin: 0 auto;
            padding: 10px;
        }
        input {
            margin-bottom: 5px;
            min-width: 150px;
        }
        #log {
            min-height: 30em;
            font-family: monospace;
            font-size: 14px;
            background-color: #ddd;
            padding: 5px;
        }
    </style>
</head>
<body>
<h1>Cleanup files shared on Slack</h1>
<div id="info">
    This script will delete files that you posted to Slack more than 30 days ago.<br>
</div>

<h3>Step 1: Retrieve Slack API test token</h2>
Go to <a href="https://api.slack.com/docs/oauth-test-tokens" target="_blank">https://api.slack.com/docs/oauth-test-tokens</a> and retrieve a test token for the Slack API.

<h3>Step 2: Paste API token + run the script</h2>
Paste the token here:<br>
<input type="text" id="token" name="token" placeholder="Slack API token" size="70" />
<input type="button" id="run" name="run" value="Run" />

<h3>Output</h2>
<div id="log"></div>


<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script>
<script>

    var token = "";
    var files = [];
    var page = 1;
    var pageCount = 1;


    function divlog(text, linebreak) {

        if (linebreak === undefined)
            linebreak = true;   // default value

        $("#log").append(text);
        if (linebreak === true)
            $("#log").append("<br>");

    }


    function getFiles() {

        var requestUrl = "https://slack.com/api/files.list";
        var ts_to = parseInt(Date.now() / 1000) - 30 * 24 * 60 * 60;  // older than 30 days
        var params = {
            "token": token,
            "ts_to": ts_to,
            "count": 1000,
            "page": page
        };

        console.log(params);
        divlog("Querying list of all files visible to you ... ", false);

        var jqxhr = $.get(requestUrl, params)
        .done(function(data) {
            divlog("Done");
            if (data.ok === true) {
                pageCount = data.paging.pages;
                files = files.concat(data.files);
                if (page < pageCount) {
                    divlog("Response is paged. Repeating to fetch next page.");
                    page = page + 1;
                    getFiles();
                }
                else {
                    deleteFiles();
                }
            }
            else {
                divlog("ERROR: Slack API returned error <strong>" + data.error + "</strong>");
            }
        })
        .fail(function() {
            divlog("<strong>XHR to URL " + requestUrl + " FAILED</strong>");
        });

    }


    function deleteFiles() {

        var requestUrl = "https://slack.com/api/files.delete";

        divlog("<br>Now request deletion of each file. Will succeed only for files shared by you.<br>");

        // run through files array
        for (var i = 0; i < files.length; i++) {
            (function(i) {  // closure
                var params = {
                    "token": token,
                    "file": files[i].id
                };

                var spanHTML = '<span id="file' + i + '">File ' + parseInt(i+1) + ' of ' + files.length + ': </span>';
                var spanId = "#file" + i;
                divlog(spanHTML);

                var jqxhr = $.get(requestUrl, params)
                .done(function(data) {
                    if (data.ok === true) {
                        $(spanId).append("<strong>Success</strong>");
                    }
                    else {
                        $(spanId).append("failed (<strong>" + data.error + "</strong>)");
                    }
                })
                .fail(function() {
                    $(spanId).append("<strong>XHR to URL " + requestUrl + " FAILED</strong>");
                });
            })(i);
        } // for loop

    }


    $("#run").click(function() {
        token = $("#token").val();
        getFiles();
    });


</script>
</body>
</html>
	<!DOCTYPE html>
	<html>
	<head>
	<meta charset="utf-8"/>
	<title>Cleanup files shared on Slack</title>

	<style type="text/css">
	body {
	font-family: Arial, sans-serif;
	max-width: 50em;
	margin: 0 auto;
	padding: 10px;
	}
	input {
	margin-bottom: 5px;
	min-width: 150px;
	}
	#log {
	min-height: 30em;
	font-family: monospace;
	font-size: 14px;
	background-color: #ddd;
	padding: 5px;
	}
	</style>
	</head>
	<body>
	<h1>Cleanup files shared on Slack</h1>
	<div id="info">
	This script will delete files that you posted to Slack more than 30 days ago.<br>
	</div>

	<h3>Step 1: Retrieve Slack API test token</h2>
	Go to <a href="https://api.slack.com/docs/oauth-test-tokens" target="_blank">https://api.slack.com/docs/oauth-test-tokens</a> and retrieve a test token for the Slack API.

	<h3>Step 2: Paste API token + run the script</h2>
	Paste the token here:<br>
	<input type="text" id="token" name="token" placeholder="Slack API token" size="70" />
	<input type="button" id="run" name="run" value="Run" />

	<h3>Output</h2>
	<div id="log"></div>




	<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script>
	<script>

	var token = "";
	var files = [];
	var page = 1;
	var pageCount = 1;


	function divlog(text, linebreak) {

	if (linebreak === undefined)
	linebreak = true; // default value

	$("#log").append(text);
	if (linebreak === true)
	$("#log").append("<br>");

	}


	function getFiles() {

	var requestUrl = "https://slack.com/api/files.list";
	var ts_to = parseInt(Date.now() / 1000) - 30 * 24 * 60 * 60; // older than 30 days
	var params = {
	"token": token,
	"ts_to": ts_to,
	"count": 1000,
	"page": page
	};

	console.log(params);
	divlog("Querying list of all files visible to you ... ", false);

	var jqxhr = $.get(requestUrl, params)
	.done(function(data) {
	divlog("Done");
	if (data.ok === true) {
	pageCount = data.paging.pages;
	files = files.concat(data.files);
	if (page < pageCount) {
	divlog("Response is paged. Repeating to fetch next page.");
	page = page + 1;
	getFiles();
	}
	else {
	deleteFiles();
	}
	}
	else {
	divlog("ERROR: Slack API returned error <strong>" + data.error + "</strong>");
	}
	})
	.fail(function() {
	divlog("<strong>XHR to URL " + requestUrl + " FAILED</strong>");
	});

	}


	function deleteFiles() {

	var requestUrl = "https://slack.com/api/files.delete";

	divlog("<br>Now request deletion of each file. Will succeed only for files shared by you.<br>");

	// run through files array
	for (var i = 0; i < files.length; i++) {
	(function(i) { // closure
	var params = {
	"token": token,
	"file": files[i].id
	};

	var spanHTML = '<span id="file' + i + '">File ' + parseInt(i+1) + ' of ' + files.length + ': </span>';
	var spanId = "#file" + i;
	divlog(spanHTML);

	var jqxhr = $.get(requestUrl, params)
	.done(function(data) {
	if (data.ok === true) {
	$(spanId).append("<strong>Success</strong>");
	}
	else {
	$(spanId).append("failed (<strong>" + data.error + "</strong>)");
	}
	})
	.fail(function() {
	$(spanId).append("<strong>XHR to URL " + requestUrl + " FAILED</strong>");
	});
	})(i);
	} // for loop

	}


	$("#run").click(function() {
	token = $("#token").val();
	getFiles();
	});


	</script>
	</body>
	</html>