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path: root/gentoobrowse-api/service/maintenanceBugs.cpp
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#include "maintenanceimpl.h"
#include <boost/lexical_cast.hpp>
#include <compileTimeFormatter.h>
#include <curlStream.h>
#include <lexer-regex.h>
#include <lexer.h>
#include <libxml++/parsers/saxparser.h>
#include <logger.h>
#include <nagios.h>
#include <selectcommandUtil.impl.h>
#include <stack>
#include <tablepatch.h>
#include <utils/dbUtils.h>

namespace Gentoo::Service {
	AdHoc::Lexer::PatternPtr bugLink = AdHoc::LexerMatchers::regex(
			R"R(Bug:(\d+) - "" status:(\w*) resolution:(\w*) severity:(\w*).*)R", G_REGEX_OPTIMIZE);

	class BugListParser : public xmlpp::SaxParser, AdHoc::Lexer {
	public:
		explicit BugListParser(DB::ModifyCommandPtr i) : ins(std::move(i))
		{
			rules.push_back({{InitialState}, bugLink, [this](auto es) {
								 ins->bindParamI(0, boost::lexical_cast<int64_t>(*es->pattern()->match(1)));
								 ins->bindParamS(2, *es->pattern()->match(2));
								 ins->bindParamS(1, *es->pattern()->match(4));
							 }});
		}

	protected:
		void
		on_start_element(const Glib::ustring & e, const xmlpp::SaxParser::AttributeList &) override
		{
			stk.push(e);
		}

		void
		on_characters(const Glib::ustring & t) override
		{
			if (stk.top() == "a") {
				attributes += t;
			}
			else if (stk.top() == "em") {
				summary += t;
			}
		}

		void
		on_end_element(const Glib::ustring & e) override
		{
			stk.pop();
			if (e == "li") {
				extract(attributes.c_str(), attributes.length());
				ins->bindParamS(3, summary);
				ins->execute();
				attributes.clear();
				summary.clear();
			}
		}

	private:
		DB::ModifyCommandPtr ins;
		std::stack<Glib::ustring> stk;

		Glib::ustring attributes;
		Glib::ustring summary;
	};

	AdHocFormatter(UpdatingBugs, "Refreshing bug list from %?");
	AdHocFormatter(UpdatingBugUrl, " ... %?");
	AdHocFormatter(UpdatingBugsResult, "Refreshed bug list: %? added, %? updated, %? removed");
	constexpr const std::string_view NagiosServiceName("GB API Bug Updates");
	void
	Maintenance::refreshBugs(const Ice::Current & c)
	{
		try {
			auto log = LOGMANAGER()->getLogger(__FUNCTION__);
			std::filesystem::path root = properties(c)->getPropertyWithDefault(
					"GentooBrowseAPI.BugRoot", "https://bugs.gentoo.org/data/cached");

			log->messagectf<UpdatingBugs>(IceTray::Logging::LogLevel::INFO, root);
			auto dbc = db->get();
			DB::TransactionScope tx(*dbc.get());
			DB::TablePatch tp;
			tp.pk = {"bugId"};
			tp.cols = {"bugId", "severity", "status", "summary"};
			tp.dest = "gentoobrowse.bugs";
			tp.src = Utils::Database::emptyClone(dbc.get(), "gentoobrowse.bugs");
			auto ins = Utils::Database::tablePatchInserter(dbc.get(), tp);
			BugListParser blp(ins);
			for (const auto & bl : {"buglist-CONFIRMED.html", "buglist-UNCONFIRMED.html", "buglist-IN_PROGRESS.html"}) {
				log->messagectf<UpdatingBugUrl>(IceTray::Logging::LogLevel::DEBUG, bl);
				AdHoc::Net::CurlStreamSource css(root / bl);
				css.setopt(CURLOPT_ENCODING, "deflate, gzip");
				css.setopt(CURLOPT_TIMEOUT, 20L);
				AdHoc::Net::CurlStream cs(css);
				blp.parse_stream(cs);
			}
			auto result = dbc->patchTable(&tp);
			Utils::Database::drop(dbc.get(), tp.src);
			log->messagectf<UpdatingBugsResult>(
					IceTray::Logging::LogLevel::INFO, result.inserts, result.updates, result.deletes);
			AdHoc::submitNagiosPassiveServiceCheck(NagiosServiceName, AdHoc::NagiosStatusCode::OK,
					UpdatingBugsResult::get(result.inserts, result.updates, result.deletes));
		}
		catch (const std::exception & ex) {
			AdHoc::submitNagiosPassiveServiceCheck(NagiosServiceName, AdHoc::NagiosStatusCode::Warning, ex.what());
			throw;
		}
	}
}