/*eslint no-bitwise:0 */ import I18n from "I18n"; const DATA_PREFIX = "data-poll-"; const DEFAULT_POLL_NAME = "poll"; const ALLOWED_ATTRIBUTES = [ "close", "max", "min", "name", "order", "public", "results", "chartType", "groups", "status", "step", "type", ]; function replaceToken(tokens, target, list) { let pos = tokens.indexOf(target); let level = tokens[pos].level; tokens.splice(pos, 1, ...list); list[0].map = target.map; // resequence levels for (; pos < tokens.length; pos++) { let nesting = tokens[pos].nesting; if (nesting < 0) { level--; } tokens[pos].level = level; if (nesting > 0) { level++; } } } // analyzes the block to that we have poll options function getListItems(tokens, startToken) { let i = tokens.length - 1; let listItems = []; let buffer = []; for (; tokens[i] !== startToken; i--) { if (i === 0) { return; } let token = tokens[i]; if (token.level === 0) { if (token.tag !== "ol" && token.tag !== "ul") { return; } } if (token.level === 1 && token.nesting === 1) { if (token.tag === "li") { listItems.push([token, buffer.reverse().join(" ")]); } else { return; } } if (token.level === 1 && token.nesting === 1 && token.tag === "li") { buffer = []; } else { if (token.type === "text" || token.type === "inline") { buffer.push(token.content); } } } return listItems.reverse(); } function invalidPoll(state, tag) { let token = state.push("text", "", 0); token.content = "[/" + tag + "]"; } function getTitle(tokens, startToken) { const startIndex = tokens.indexOf(startToken); if (startIndex === -1) { return; } const pollTokens = tokens.slice(startIndex); const open = pollTokens.findIndex((token) => token.type === "heading_open"); const close = pollTokens.findIndex((token) => token.type === "heading_close"); if (open === -1 || close === -1) { return; } const titleTokens = pollTokens.slice(open + 1, close); // Remove the heading element tokens.splice(startIndex + open, close - open + 1); return titleTokens; } const rule = { tag: "poll", before(state, tagInfo, raw) { let token = state.push("text", "", 0); token.content = raw; token.bbcode_attrs = tagInfo.attrs; token.bbcode_type = "poll_open"; }, after(state, openToken, raw) { const titleTokens = getTitle(state.tokens, openToken); let items = getListItems(state.tokens, openToken); if (!items) { return invalidPoll(state, raw); } const attrs = openToken.bbcode_attrs; // default poll attributes const attributes = [["class", "poll"]]; if (!attrs["status"]) { attributes.push([DATA_PREFIX + "status", "open"]); } ALLOWED_ATTRIBUTES.forEach((name) => { if (attrs[name]) { attributes.push([DATA_PREFIX + name, attrs[name]]); } }); if (!attrs.name) { attributes.push([DATA_PREFIX + "name", DEFAULT_POLL_NAME]); } // we might need these values later... let min = parseInt(attrs["min"], 10); let max = parseInt(attrs["max"], 10); let step = parseInt(attrs["step"], 10); // infinite loop if step < 1 if (step < 1) { step = 1; } let header = []; let token = new state.Token("poll_open", "div", 1); token.block = true; token.attrs = attributes; header.push(token); token = new state.Token("poll_open", "div", 1); token.block = true; header.push(token); token = new state.Token("poll_open", "div", 1); token.attrs = [["class", "poll-container"]]; header.push(token); if (titleTokens) { token = new state.Token("title_open", "div", 1); token.attrs = [["class", "poll-title"]]; header.push(token); header.push(...titleTokens); token = new state.Token("title_close", "div", -1); header.push(token); } // generate the options when the type is "number" if (attrs["type"] === "number") { // default values if (isNaN(min)) { min = 1; } if (isNaN(max)) { max = state.md.options.discourse.pollMaximumOptions; } if (isNaN(step)) { step = 1; } if (items.length > 0) { return invalidPoll(state, raw); } // dynamically generate options token = new state.Token("bullet_list_open", "ul", 1); header.push(token); for (let o = min; o <= max; o += step) { token = new state.Token("list_item_open", "li", 1); items.push([token, String(o)]); header.push(token); token = new state.Token("text", "", 0); token.content = String(o); header.push(token); token = new state.Token("list_item_close", "li", -1); header.push(token); } token = new state.Token("bullet_item_close", "", -1); header.push(token); } // flag items so we add hashes for (let o = 0; o < items.length; o++) { token = items[o][0]; let text = items[o][1]; token.attrs = token.attrs || []; let md5Hash = md5(JSON.stringify([text])); token.attrs.push([DATA_PREFIX + "option-id", md5Hash]); } replaceToken(state.tokens, openToken, header); // we got to correct the level on the state // we just resequenced state.level = state.tokens[state.tokens.length - 1].level; state.push("poll_close", "div", -1); token = state.push("poll_open", "div", 1); token.attrs = [["class", "poll-info"]]; state.push("paragraph_open", "p", 1); token = state.push("span_open", "span", 1); token.block = false; token.attrs = [["class", "info-number"]]; token = state.push("text", "", 0); token.content = "0"; state.push("span_close", "span", -1); token = state.push("span_open", "span", 1); token.block = false; token.attrs = [["class", "info-label"]]; token = state.push("text", "", 0); token.content = I18n.t("poll.voters", { count: 0 }); state.push("span_close", "span", -1); state.push("paragraph_close", "p", -1); state.push("poll_close", "div", -1); state.push("poll_close", "div", -1); state.push("poll_close", "div", -1); }, }; function newApiInit(helper) { helper.registerOptions((opts, siteSettings) => { opts.features.poll = !!siteSettings.poll_enabled; opts.pollMaximumOptions = siteSettings.poll_maximum_options; }); helper.registerPlugin((md) => { md.block.bbcode.ruler.push("poll", rule); }); } export function setup(helper) { helper.allowList([ "div.poll", "div.poll-info", "div.poll-container", "div.poll-title", "div.poll-buttons", "div[data-*]", "span.info-number", "span.info-text", "span.info-label", "a.button.cast-votes", "a.button.toggle-results", "li[data-*]", ]); newApiInit(helper); } /*! * Joseph Myer's md5() algorithm wrapped in a self-invoked function to prevent * global namespace pollution, modified to hash unicode characters as UTF-8. * * Copyright 1999-2010, Joseph Myers, Paul Johnston, Greg Holt, Will Bond * http://www.myersdaily.org/joseph/javascript/md5-text.html * http://pajhome.org.uk/crypt/md5 * * Released under the BSD license * http://www.opensource.org/licenses/bsd-license */ function md5cycle(x, k) { let a = x[0], b = x[1], c = x[2], d = x[3]; a = ff(a, b, c, d, k[0], 7, -680876936); d = ff(d, a, b, c, k[1], 12, -389564586); c = ff(c, d, a, b, k[2], 17, 606105819); b = ff(b, c, d, a, k[3], 22, -1044525330); a = ff(a, b, c, d, k[4], 7, -176418897); d = ff(d, a, b, c, k[5], 12, 1200080426); c = ff(c, d, a, b, k[6], 17, -1473231341); b = ff(b, c, d, a, k[7], 22, -45705983); a = ff(a, b, c, d, k[8], 7, 1770035416); d = ff(d, a, b, c, k[9], 12, -1958414417); c = ff(c, d, a, b, k[10], 17, -42063); b = ff(b, c, d, a, k[11], 22, -1990404162); a = ff(a, b, c, d, k[12], 7, 1804603682); d = ff(d, a, b, c, k[13], 12, -40341101); c = ff(c, d, a, b, k[14], 17, -1502002290); b = ff(b, c, d, a, k[15], 22, 1236535329); a = gg(a, b, c, d, k[1], 5, -165796510); d = gg(d, a, b, c, k[6], 9, -1069501632); c = gg(c, d, a, b, k[11], 14, 643717713); b = gg(b, c, d, a, k[0], 20, -373897302); a = gg(a, b, c, d, k[5], 5, -701558691); d = gg(d, a, b, c, k[10], 9, 38016083); c = gg(c, d, a, b, k[15], 14, -660478335); b = gg(b, c, d, a, k[4], 20, -405537848); a = gg(a, b, c, d, k[9], 5, 568446438); d = gg(d, a, b, c, k[14], 9, -1019803690); c = gg(c, d, a, b, k[3], 14, -187363961); b = gg(b, c, d, a, k[8], 20, 1163531501); a = gg(a, b, c, d, k[13], 5, -1444681467); d = gg(d, a, b, c, k[2], 9, -51403784); c = gg(c, d, a, b, k[7], 14, 1735328473); b = gg(b, c, d, a, k[12], 20, -1926607734); a = hh(a, b, c, d, k[5], 4, -378558); d = hh(d, a, b, c, k[8], 11, -2022574463); c = hh(c, d, a, b, k[11], 16, 1839030562); b = hh(b, c, d, a, k[14], 23, -35309556); a = hh(a, b, c, d, k[1], 4, -1530992060); d = hh(d, a, b, c, k[4], 11, 1272893353); c = hh(c, d, a, b, k[7], 16, -155497632); b = hh(b, c, d, a, k[10], 23, -1094730640); a = hh(a, b, c, d, k[13], 4, 681279174); d = hh(d, a, b, c, k[0], 11, -358537222); c = hh(c, d, a, b, k[3], 16, -722521979); b = hh(b, c, d, a, k[6], 23, 76029189); a = hh(a, b, c, d, k[9], 4, -640364487); d = hh(d, a, b, c, k[12], 11, -421815835); c = hh(c, d, a, b, k[15], 16, 530742520); b = hh(b, c, d, a, k[2], 23, -995338651); a = ii(a, b, c, d, k[0], 6, -198630844); d = ii(d, a, b, c, k[7], 10, 1126891415); c = ii(c, d, a, b, k[14], 15, -1416354905); b = ii(b, c, d, a, k[5], 21, -57434055); a = ii(a, b, c, d, k[12], 6, 1700485571); d = ii(d, a, b, c, k[3], 10, -1894986606); c = ii(c, d, a, b, k[10], 15, -1051523); b = ii(b, c, d, a, k[1], 21, -2054922799); a = ii(a, b, c, d, k[8], 6, 1873313359); d = ii(d, a, b, c, k[15], 10, -30611744); c = ii(c, d, a, b, k[6], 15, -1560198380); b = ii(b, c, d, a, k[13], 21, 1309151649); a = ii(a, b, c, d, k[4], 6, -145523070); d = ii(d, a, b, c, k[11], 10, -1120210379); c = ii(c, d, a, b, k[2], 15, 718787259); b = ii(b, c, d, a, k[9], 21, -343485551); x[0] = add32(a, x[0]); x[1] = add32(b, x[1]); x[2] = add32(c, x[2]); x[3] = add32(d, x[3]); } function cmn(q, a, b, x, s, t) { a = add32(add32(a, q), add32(x, t)); return add32((a << s) | (a >>> (32 - s)), b); } function ff(a, b, c, d, x, s, t) { return cmn((b & c) | (~b & d), a, b, x, s, t); } function gg(a, b, c, d, x, s, t) { return cmn((b & d) | (c & ~d), a, b, x, s, t); } function hh(a, b, c, d, x, s, t) { return cmn(b ^ c ^ d, a, b, x, s, t); } function ii(a, b, c, d, x, s, t) { return cmn(c ^ (b | ~d), a, b, x, s, t); } function md51(s) { // Converts the string to UTF-8 "bytes" s = unescape(encodeURI(s)); let n = s.length, state = [1732584193, -271733879, -1732584194, 271733878], i; for (i = 64; i <= s.length; i += 64) { md5cycle(state, md5blk(s.substring(i - 64, i))); } s = s.substring(i - 64); let tail = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]; for (i = 0; i < s.length; i++) { tail[i >> 2] |= s.charCodeAt(i) << (i % 4 << 3); } tail[i >> 2] |= 0x80 << (i % 4 << 3); if (i > 55) { md5cycle(state, tail); for (i = 0; i < 16; i++) { tail[i] = 0; } } tail[14] = n * 8; md5cycle(state, tail); return state; } function md5blk(s) { /* I figured global was faster. */ let md5blks = [], i; /* Andy King said do it this way. */ for (i = 0; i < 64; i += 4) { md5blks[i >> 2] = s.charCodeAt(i) + (s.charCodeAt(i + 1) << 8) + (s.charCodeAt(i + 2) << 16) + (s.charCodeAt(i + 3) << 24); } return md5blks; } let hex_chr = "0123456789abcdef".split(""); function rhex(n) { let s = "", j = 0; for (; j < 4; j++) { s += hex_chr[(n >> (j * 8 + 4)) & 0x0f] + hex_chr[(n >> (j * 8)) & 0x0f]; } return s; } function hex(x) { for (let i = 0; i < x.length; i++) { x[i] = rhex(x[i]); } return x.join(""); } function add32(a, b) { return (a + b) & 0xffffffff; } function md5(s) { return hex(md51(s)); }