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import { ObjectID } from 'mongodb';
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import { DiscussionNotFoundError, DocumentNotFoundError } from '../error';
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import paginate from '../lib/paginate';
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import * as system from '../model/system';
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import * as user from '../model/user';
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import * as discussion from '../model/discussion';
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import * as document from '../model/document';
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import { PERM, PRIV } from '../model/builtin';
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import { Route, Handler } from '../service/server';
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export const typeMapper = {
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problem: document.TYPE_PROBLEM,
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contest: document.TYPE_CONTEST,
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node: document.TYPE_DISCUSSION_NODE,
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training: document.TYPE_TRAINING,
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homework: document.TYPE_HOMEWORK,
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};
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class DiscussionHandler extends Handler {
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async _prepare({
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domainId, type, name, did, drid, drrid,
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}) {
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this.checkPerm(PERM.PERM_VIEW_DISCUSSION);
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if (did) {
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this.ddoc = await discussion.get(domainId, did);
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if (!this.ddoc) throw new DiscussionNotFoundError(did);
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type = discussion.typeDisplay[this.ddoc.parentType];
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name = this.ddoc.parentId;
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if (drid) {
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this.drdoc = await discussion.getReply(domainId, drid);
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if (!this.drdoc) throw new DiscussionNotFoundError(drid);
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if (!this.drdoc.parentId.equals(this.ddoc._id)) {
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throw new DocumentNotFoundError(drid);
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}
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if (drrid) {
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[, this.drrdoc] = await discussion.getTailReply(domainId, drid, drrid);
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if (!this.drrdoc) throw new DiscussionNotFoundError(drrid);
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if (!this.drrdoc.parentId.equals(this.drdoc._id)) {
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throw new DocumentNotFoundError(drid);
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}
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}
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}
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}
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// TODO(twd2): do more visibility check eg. contest
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// TODO(twd2): exclude problem/contest discussions?
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// TODO(iceboy): continuation based pagination.
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if (ObjectID.isValid(name)) name = new ObjectID(name);
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this.vnode = await discussion.getVnode(domainId, {
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parentType: typeMapper[type],
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parentId: name,
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}, this);
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if (this.ddoc) {
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this.ddoc.parentType = this.ddoc.parentType || this.vnode.type;
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this.ddoc.parentId = this.ddoc.parentId || this.vnode.id;
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}
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}
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}
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class DiscussionMainHandler extends Handler {
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async get({ domainId, page = 1 }) {
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const [ddocs, dpcount] = await paginate(
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discussion.getMulti(domainId),
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page,
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await system.get('DISCUSSION_PER_PAGE'),
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);
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const udict = await user.getList(domainId, ddocs.map((ddoc) => ddoc.owner));
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const path = [
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['Hydro', 'homepage'],
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['discussion_main', null],
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];
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const [vndict, vnodes] = await Promise.all([
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discussion.getListVnodes(domainId, ddocs, this),
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discussion.getNodes(domainId),
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]);
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this.response.template = 'discussion_main_or_node.html';
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this.response.body = {
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ddocs, dpcount, udict, page, page_name: 'discussion_main', vndict, vnode: {}, path, vnodes,
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};
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}
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}
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class DiscussionNodeHandler extends DiscussionHandler {
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async get({
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domainId, type, name, page = 1,
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}) {
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const [ddocs, dpcount] = await paginate(
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discussion.getMulti(domainId, { parentType: typeMapper[type], parentId: name }),
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page,
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await system.get('DISCUSSION_PER_PAGE'),
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);
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const [udict, vnodes] = await Promise.all([
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user.getList(domainId, ddocs.map((ddoc) => ddoc.owner)),
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discussion.getNodes(domainId),
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]);
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const path = [
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['Hydro', 'homepage'],
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['discussion_main', 'discussion_main'],
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[this.vnode.title, null, true],
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];
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const vndict = { [typeMapper[type]]: { [name]: this.vnode } };
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this.response.template = 'discussion_main_or_node.html';
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this.response.body = {
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ddocs,
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dpcount,
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udict,
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path,
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page,
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vndict,
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vnode: this.vnode,
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page_name: 'discussion_node',
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vnodes,
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};
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}
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}
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class DiscussionCreateHandler extends DiscussionHandler {
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async prepare() {
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this.checkPriv(PRIV.PRIV_USER_PROFILE);
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this.checkPerm(PERM.PERM_CREATE_DISCUSSION);
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}
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async get({ type, name }) {
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const path = [
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['Hydro', 'homepage'],
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['discussion_main', 'discussion_main'],
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[this.vnode.title, 'discussion_node', { type, name }, true],
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['discussion_create', null],
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];
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this.response.template = 'discussion_create.html';
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this.response.body = { path, vnode: this.vnode };
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}
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async post({
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domainId, type, name, title, content, highlight,
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}) {
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this.limitRate('add_discussion', 3600, 30);
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if (ObjectID.isValid(name)) name = new ObjectID(name);
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if (highlight) this.checkPerm(PERM.PERM_HIGHLIGHT_DISCUSSION);
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const did = await discussion.add(
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domainId, typeMapper[type], name, this.user._id,
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title, content, this.request.ip, highlight,
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);
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this.response.body = { did };
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this.response.redirect = this.url('discussion_detail', { did });
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}
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}
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class DiscussionDetailHandler extends DiscussionHandler {
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async get({ domainId, did, page = 1 }) {
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const dsdoc = this.user.hasPriv(PRIV.PRIV_USER_PROFILE)
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? await discussion.getStatus(domainId, did, this.user._id)
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: null;
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const [drdocs, pcount, drcount] = await paginate(
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discussion.getMultiReply(domainId, did),
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page,
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await system.get('REPLY_PER_PAGE'),
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);
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const uids = drdocs.map((drdoc) => drdoc.owner);
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uids.push(this.ddoc.owner);
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for (const drdoc of drdocs) {
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if (drdoc.reply) {
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for (const drrdoc of drdocs) {
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uids.push(drrdoc.owner);
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}
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}
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}
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const udict = await user.getList(domainId, uids);
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const path = [
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['Hydro', 'homepage'],
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['discussion_main', 'discussion_main'],
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[this.vnode.title, 'discussion_node', { type: discussion.typeDisplay[this.ddoc.parentType], name: this.ddoc.parentId }, true],
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[this.ddoc.title, null, null, true],
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];
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this.response.template = 'discussion_detail.html';
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this.response.body = {
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path, ddoc: this.ddoc, dsdoc, drdocs, page, pcount, drcount, udict, vnode: this.vnode,
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};
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}
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async post() {
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this.checkPriv(PRIV.PRIV_USER_PROFILE);
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}
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async postReply({ domainId, did, content }) {
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this.checkPerm(PERM.PERM_REPLY_DISCUSSION);
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this.limitRate('add_discussion', 3600, 30);
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await discussion.addReply(domainId, did, this.user._id, content, this.request.ip);
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this.back();
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}
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async postTailReply({ domainId, drid, content }) {
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this.checkPerm(PERM.PERM_REPLY_DISCUSSION);
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this.limitRate('add_discussion', 3600, 30);
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await discussion.addTailReply(domainId, drid, this.user._id, content, this.request.ip);
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this.back();
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}
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async postEditReply({ domainId, drid, content }) {
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if (this.drdoc.owner !== this.user._id) this.checkPerm(PERM.PERM_EDIT_DISCUSSION_REPLY);
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await discussion.editReply(domainId, drid, content);
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this.back();
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}
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async postDeleteReply({ domainId, drid }) {
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if (this.drdoc.owner !== this.user._id) this.checkPerm(PERM.PERM_DELETE_DISCUSSION_REPLY);
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await discussion.delReply(domainId, drid);
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this.back();
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}
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async postEditTailReply({
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domainId, drid, drrid, content,
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}) {
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if (this.drdoc.owner !== this.user._id) this.checkPerm(PERM.PERM_EDIT_DISCUSSION_REPLY);
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await discussion.editTailReply(domainId, drid, drrid, content);
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this.back();
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}
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async postDeleteTailReply({ domainId, drid, drrid }) {
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if (this.drrdoc.owner !== this.user._id) this.checkPerm(PERM.PERM_DELETE_DISCUSSION_REPLY);
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await discussion.delTailReply(domainId, drid, drrid);
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this.back();
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}
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async postStar({ domainId, did }) {
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await discussion.setStar(domainId, did, this.user._id, true);
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this.back({ star: true });
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}
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async postUnstar({ domainId, did }) {
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await discussion.setStar(domainId, did, this.user._id, false);
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this.back({ star: false });
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}
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}
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class DiscussionDetailRawHandler extends DiscussionHandler {
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async get() {
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this.response.type = 'text/markdown';
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this.response.body = this.ddoc.content;
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}
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}
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class DiscussionReplyRawHandler extends DiscussionHandler {
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async get() {
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this.response.type = 'text/markdown';
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this.response.body = this.drdoc.content;
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}
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}
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class DiscussionTailReplyRawHandler extends DiscussionHandler {
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async get() {
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this.response.type = 'text/markdown';
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this.response.body = this.drrdoc.content;
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}
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}
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class DiscussionEditHandler extends DiscussionHandler {
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async get() {
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const path = [
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['Hydro', 'homepage'],
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['discussion_main', 'discussion_main'],
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[this.vnode.title, 'discussion_node', { type: discussion.typeDisplay[this.ddoc.parentType], name: this.ddoc.parentId }, true],
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[this.ddoc.title, 'discussion_detail', { did: this.ddoc.docId }, true],
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['discussion_edit', null],
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];
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this.response.template = 'discussion_edit.html';
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this.response.body = { ddoc: this.ddoc, path };
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}
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async postUpdate({
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domainId, did, title, content, highlight,
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}) {
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if (this.ddoc.owner !== this.user._id) this.checkPerm(PERM.PERM_EDIT_DISCUSSION);
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if (highlight && !this.ddoc.highlight) this.checkPerm(PERM.PERM_HIGHLIGHT_DISCUSSION);
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await discussion.edit(domainId, did, title, content, highlight);
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this.response.body = { did };
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this.response.redirect = this.url('discussion_detail', { did });
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}
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async postDelete({ domainId, did }) {
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if (this.ddoc.owner !== this.user._id) this.checkPerm(PERM.PERM_DELETE_DISCUSSION);
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await discussion.del(domainId, did);
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this.response.body = { type: this.ddoc.parentType, parent: this.ddoc.parentId };
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this.response.redirect = this.url('discussion_node', {
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type: discussion.typeDisplay[this.ddoc.parentType],
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name: this.ddoc.parentId,
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});
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}
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}
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export async function apply() {
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Route('discussion_main', '/discuss', DiscussionMainHandler);
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Route('discussion_detail', '/discuss/:did', DiscussionDetailHandler);
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Route('discussion_edit', '/discuss/:did/edit', DiscussionEditHandler);
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Route('discussion_detail', '/discuss/:did/raw', DiscussionDetailRawHandler);
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Route('discussion_reply_raw', '/discuss/:did/:drid/raw', DiscussionReplyRawHandler);
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Route('discussion_tail_reply_raw', '/discuss/:did/:drid/:drrid/raw', DiscussionTailReplyRawHandler);
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Route('discussion_node', '/discuss/:type/:name', DiscussionNodeHandler);
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Route('discussion_create', '/discuss/:type/:name/create', DiscussionCreateHandler);
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}
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global.Hydro.handler.discussion = apply;
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