130 рядки
4.2 KiB
C++
130 рядки
4.2 KiB
C++
/* Copyright (c) 2018 Albert S.
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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SOFTWARE.
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*/
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#include "handlerhistory.h"
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#include "handler.h"
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#include "../htmllink.h"
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#include "../logger.h"
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#include "../database/exceptions.h"
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Response HandlerHistory::handleRequest(const Request &r)
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{
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QueryOption qo = queryOption(r, DESCENDING);
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std::string page = r.get("page");
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std::string title;
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if(page.empty())
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{
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if(!this->userSession->user.permissions.canSeeGlobalHistory())
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{
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return errorResponse("Permission denied", "You can't see the changes history on this wiki", 403);
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}
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title = "History";
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}
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else
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{
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Permissions perms = effectivePermissions(page);
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if(!perms.canSeePageHistory())
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{
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return errorResponse("Permission denied", "You cannot see the changes history of this page", 403);
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}
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title = "History: " + page;
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}
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unsigned int count = 0;
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std::vector<Revision> resultList;
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auto revisionDao = this->database->createRevisionDao();
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auto makeSortedLink = [&](unsigned int limit, unsigned int offset, unsigned int order)
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{
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if(!page.empty())
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{
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return this->urlProvider->pageHistorySort(page, limit, offset, order);
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}
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return this->urlProvider->recentSorted(limit, offset, order);
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};
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std::string templatename = "recentchanges";
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try
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{
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if(!page.empty())
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{
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auto pageDao = this->database->createPageDao();
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if(!pageDao->exists(page))
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{
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return errorResponse("No such page", "No such page exists to show history for", 404);
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}
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count = revisionDao->countTotalRevisions(page);
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resultList = revisionDao->getAllRevisionsForPage(page, qo);
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templatename = "page_history";
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}
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else
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{
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count = revisionDao->countTotalRevisions();
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if(count == 0)
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{
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return errorResponse("No revisions", "This wiki does not have any pages with revisions yet");
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}
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resultList = revisionDao->getAllRevisions(qo);
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}
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}
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catch(const DatabaseException &e)
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{
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Logger::error() << "DatabaseException in handlerhistory: " << e.what();
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return errorResponse("Database error", "While trying to fetch revision list, a database error occured");
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}
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TemplatePage historyPage = this->templ->getPage(templatename);
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setGeneralVars(historyPage);
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if((qo.offset + (unsigned int)resultList.size()) < count)
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{
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HtmlLink link;
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link.href = makeSortedLink(qo.limit, qo.offset + qo.limit, qo.order);
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link.innervalue = "Next page";
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historyPage.setVar("nextpage", link.render());
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}
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unsigned int prevoffset = qo.offset - qo.limit;
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if(prevoffset > count)
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{
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prevoffset = 0;
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}
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if(qo.offset > 0 && qo.offset < count)
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{
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HtmlLink link;
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link.href = makeSortedLink(qo.limit, prevoffset, qo.order);
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link.innervalue = "Previous page";
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historyPage.setVar("prevpage", link.render());
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}
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unsigned int neworder = (qo.order == DESCENDING) ? ASCENDING : DESCENDING;
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historyPage.setVar("linkrecentsort", makeSortedLink(qo.limit, qo.offset, neworder));
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historyPage.setVar("revisionlist", this->templ->renderRevisionList(resultList, page.empty()));
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historyPage.setVar("title", createPageTitle(title));
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Response response;
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response.setBody(historyPage.render());
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response.setStatus(200);
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return response;
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}
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bool HandlerHistory::canAccess([[maybe_unused]] const Permissions &perms)
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{
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return true; // This is a lie but we need to this a little more fine grained here, which we do in the handleRequest
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}
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