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compiler-explorer/lib/handlers/api.ts
2025-07-27 13:47:06 +02:00

375 lines
14 KiB
TypeScript

// Copyright (c) 2023, Compiler Explorer Authors
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// * Redistributions of source code must retain the above copyright notice,
// this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.
import express from 'express';
import _ from 'underscore';
import {isString, unique} from '../../shared/common-utils.js';
import {CompilerInfo} from '../../types/compiler.interfaces.js';
import {Language, LanguageKey} from '../../types/languages.interfaces.js';
import {assert, unwrap} from '../assert.js';
import {ClientStateNormalizer} from '../clientstate-normalizer.js';
import {CompilationEnvironment} from '../compilation-env.js';
import {IExecutionEnvironment} from '../execution/execution-env.interfaces.js';
import {LocalExecutionEnvironment} from '../execution/index.js';
import {logger} from '../logger.js';
import {ClientOptionsHandler} from '../options-handler.js';
import {PropertyGetter} from '../properties.interfaces.js';
import {SentryCapture} from '../sentry.js';
import {BaseShortener, getShortenerTypeByKey} from '../shortener/index.js';
import {StorageBase} from '../storage/index.js';
import {CompileHandler} from './compile.js';
function methodNotAllowed(req: express.Request, res: express.Response) {
res.status(405).send('Method Not Allowed');
}
export class ApiHandler {
public compilers: CompilerInfo[] = [];
public languages: Partial<Record<LanguageKey, Language>> = {};
private usedLangIds: LanguageKey[] = [];
private options: ClientOptionsHandler | null = null;
public readonly handle: express.Router;
public readonly shortener: BaseShortener;
private release = {
gitReleaseName: '',
releaseBuildNumber: '',
};
private readonly compilationEnvironment: CompilationEnvironment;
constructor(
compileHandler: CompileHandler,
ceProps: PropertyGetter,
private readonly storageHandler: StorageBase,
urlShortenService: string,
compilationEnvironment: CompilationEnvironment,
) {
this.handle = express.Router();
this.compilationEnvironment = compilationEnvironment;
const cacheHeader = `public, max-age=${ceProps('apiMaxAgeSecs', 24 * 60 * 60)}`;
this.handle.use((req, res, next) => {
res.header({
'Access-Control-Allow-Origin': '*',
'Access-Control-Allow-Headers': 'Origin, X-Requested-With, Content-Type, Accept',
'Cache-Control': cacheHeader,
});
if (req.method === 'OPTIONS') {
res.sendStatus(200);
} else {
next();
}
});
this.handle.route('/compilers').get(this.handleCompilers.bind(this)).all(methodNotAllowed);
this.handle.route('/compilers/:language').get(this.handleCompilers.bind(this)).all(methodNotAllowed);
this.handle.route('/languages').get(this.handleLanguages.bind(this)).all(methodNotAllowed);
this.handle.route('/libraries/:language').get(this.handleLangLibraries.bind(this)).all(methodNotAllowed);
this.handle.route('/libraries').get(this.handleAllLibraries.bind(this)).all(methodNotAllowed);
this.handle.route('/tools/:language').get(this.handleLangTools.bind(this)).all(methodNotAllowed);
this.handle
.route('/asm/:opcode')
.get((req, res) => res.redirect(`amd64/${req.params.opcode}`))
.all(methodNotAllowed);
const maxUploadSize = ceProps('maxUploadSize', '1mb');
const textParser = express.text({limit: ceProps('bodyParserLimit', maxUploadSize), type: () => true});
this.handle
.route('/compiler/:compiler/compile')
.post(textParser, compileHandler.handle.bind(compileHandler))
.all(methodNotAllowed);
this.handle
.route('/compiler/:compiler/cmake')
.post(compileHandler.handleCmake.bind(compileHandler))
.all(methodNotAllowed);
if (this.compilationEnvironment.ceProps('localexecutionEndpoint', false)) {
this.handle.route('/localexecution/:hash').post(this.handleLocalExecution.bind(this)).all(methodNotAllowed);
}
this.handle
.route('/popularArguments/:compiler')
.post(compileHandler.handlePopularArguments.bind(compileHandler))
.get(compileHandler.handlePopularArguments.bind(compileHandler))
.all(methodNotAllowed);
this.handle
.route('/optimizationArguments/:compiler')
.post(compileHandler.handleOptimizationArguments.bind(compileHandler))
.get(compileHandler.handleOptimizationArguments.bind(compileHandler))
.all(methodNotAllowed);
this.handle.route('/shortlinkinfo/:id').get(this.shortlinkInfoHandler.bind(this)).all(methodNotAllowed);
const shortenerType = getShortenerTypeByKey(urlShortenService);
this.shortener = new shortenerType(storageHandler);
this.handle.route('/shortener').post(this.shortener.handle.bind(this.shortener)).all(methodNotAllowed);
this.handle.route('/version').get(this.handleReleaseName.bind(this)).all(methodNotAllowed);
this.handle.route('/releaseBuild').get(this.handleReleaseBuild.bind(this)).all(methodNotAllowed);
// Let's not document this one, eh?
this.handle.route('/forceServerError').get((req, res) => {
logger.error(`Forced server error from ${req.ip}`);
throw new Error('Forced server error');
});
}
shortlinkInfoHandler(req: express.Request, res: express.Response, next: express.NextFunction) {
const id = req.params.id;
this.storageHandler
.expandId(id)
.then(result => {
const config = JSON.parse(result.config);
if (result.created) res.header('Link-Created', result.created.toUTCString());
if (config.content) {
const normalizer = new ClientStateNormalizer();
normalizer.fromGoldenLayout(config);
res.send(normalizer.normalized);
} else {
res.send(config);
}
})
.catch(err => {
logger.warn(`Exception thrown when expanding ${id}: `, err);
logger.warn('Exception value:', err);
SentryCapture(err, 'shortlinkInfoHandler');
next({
statusCode: 404,
message: `ID "${id}" could not be found`,
});
});
}
handleLanguages(req: express.Request, res: express.Response) {
const availableLanguages = this.usedLangIds.map(val => {
const lang = this.languages[val];
const newLangObj: Language = Object.assign({}, lang);
if (this.options) {
newLangObj.defaultCompiler = this.options.options.defaultCompiler[unwrap(lang).id];
}
return newLangObj;
});
this.outputList(availableLanguages, 'Id', req, res);
}
filterCompilerProperties(list: CompilerInfo[] | Language[], selectedFields: string[]) {
return list.map(compiler => {
return _.pick(compiler, selectedFields);
});
}
outputList(list: CompilerInfo[] | Language[], title: string, req: express.Request, res: express.Response) {
if (req.accepts(['text', 'json']) === 'json') {
if (req.query.fields === 'all') {
res.send(list);
} else {
const defaultfields = [
'id',
'name',
'lang',
'compilerType',
'semver',
'extensions',
'monaco',
'instructionSet',
];
if (req.query.fields) {
assert(isString(req.query.fields));
const filteredList = this.filterCompilerProperties(list, req.query.fields.split(','));
res.send(filteredList);
} else {
const filteredList = this.filterCompilerProperties(list, defaultfields);
res.send(filteredList);
}
}
return;
}
const maxLength = Math.max(
...list
.map(item => item.id)
.concat([title])
.map(item => item.length),
);
const header = title.padEnd(maxLength, ' ') + ' | Name\n';
const body = list.map(lang => lang.id.padEnd(maxLength, ' ') + ' | ' + lang.name).join('\n');
res.set('Content-Type', 'text/plain');
res.send(header + body);
}
getLibrariesAsArray(languageId: LanguageKey) {
const libsForLanguageObj = unwrap(this.options).options.libs[languageId];
if (!libsForLanguageObj) return [];
return Object.keys(libsForLanguageObj).map(key => {
const language = libsForLanguageObj[key];
const versionArr = Object.keys(language.versions).map(key => {
return {
...language.versions[key],
id: key,
};
});
return {
id: key,
name: language.name,
description: language.description,
url: language.url,
versions: versionArr,
};
});
}
getToolsAsArray(languageId: LanguageKey) {
const toolsForLanguageObj = unwrap(this.options).options.tools[languageId];
if (!toolsForLanguageObj) return [];
return Object.keys(toolsForLanguageObj).map(key => {
const tool = toolsForLanguageObj[key];
return {
id: key,
name: tool.name,
type: tool.type,
languageId: tool.languageId || languageId,
allowStdin: tool.stdinHint !== 'disabled',
};
});
}
handleLangLibraries(req: express.Request, res: express.Response, next: express.NextFunction) {
if (this.options) {
if (req.params.language) {
res.send(this.getLibrariesAsArray(req.params.language as LanguageKey));
} else {
next({
statusCode: 404,
message: 'Language is required',
});
}
} else {
next({
statusCode: 500,
message: 'Internal error',
});
}
}
handleLangTools(req: express.Request, res: express.Response, next: express.NextFunction) {
if (this.options) {
if (req.params.language) {
res.send(this.getToolsAsArray(req.params.language as LanguageKey));
} else {
next({
statusCode: 404,
message: 'Language is required',
});
}
} else {
next({
statusCode: 500,
message: 'Internal error',
});
}
}
async handleLocalExecution(req: express.Request, res: express.Response, next: express.NextFunction) {
if (!req.params.hash) {
next({statusCode: 404, message: 'No hash supplied'});
return;
}
if (!req.body.ExecutionParams) {
next({statusCode: 404, message: 'No ExecutionParams'});
return;
}
try {
const env: IExecutionEnvironment = new LocalExecutionEnvironment(this.compilationEnvironment);
await env.downloadExecutablePackage(req.params.hash);
const execResult = await env.execute(req.body.ExecutionParams);
logger.debug('execResult', execResult);
res.send(execResult);
} catch (e) {
logger.error(e);
next({statusCode: 500, message: 'Internal error'});
}
}
handleAllLibraries(req: express.Request, res: express.Response, next: express.NextFunction) {
if (this.options) {
res.send(this.options.options.libs);
} else {
next({
statusCode: 500,
message: 'Internal error',
});
}
}
handleCompilers(req: express.Request, res: express.Response) {
let filteredCompilers = this.compilers;
if (req.params.language) {
filteredCompilers = this.compilers.filter(compiler => compiler.lang === req.params.language);
}
this.outputList(filteredCompilers, 'Compiler Name', req, res);
}
handleReleaseName(req: express.Request, res: express.Response) {
res.send(this.release.gitReleaseName);
}
handleReleaseBuild(req: express.Request, res: express.Response) {
res.send(this.release.releaseBuildNumber);
}
setCompilers(compilers: CompilerInfo[]) {
this.compilers = compilers;
this.usedLangIds = unique(this.compilers.map(compiler => compiler.lang));
}
setLanguages(languages: Partial<Record<LanguageKey, Language>>) {
this.languages = languages;
}
setOptions(options: ClientOptionsHandler) {
this.options = options;
}
setReleaseInfo(gitReleaseName: string | undefined, releaseBuildNumber: string | undefined) {
this.release = {
gitReleaseName: gitReleaseName || '',
releaseBuildNumber: releaseBuildNumber || '',
};
}
}