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// Copyright (c) 2017, Matt Godbolt
// 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.
"use strict";
var Sentry = require('@sentry/browser');
var $ = require('jquery');
var _ = require('underscore');
var LruCache = require('lru-cache');
var options = require('./options');
var Promise = require('es6-promise').Promise;
function CompilerService(eventHub) {
this.base = window.httpRoot;
this.allowStoreCodeDebug = true;
if (!this.base.endsWith('/')) {
this.base += '/';
}
this.cache = new LruCache({
max: 200 * 1024,
length: function (n) {
return JSON.stringify(n).length;
}
});
this.compilersByLang = {};
_.each(options.compilers, function (compiler) {
if (!this.compilersByLang[compiler.lang]) this.compilersByLang[compiler.lang] = {};
this.compilersByLang[compiler.lang][compiler.id] = compiler;
if (compiler.alias) {
this.compilersByLang[compiler.lang][compiler.alias] = compiler;
}
}, this);
// settingsChange is triggered on page load
eventHub.on('settingsChange', function (newSettings) {
this.allowStoreCodeDebug = newSettings.allowStoreCodeDebug;
}, this);
}
CompilerService.prototype.getDefaultCompilerForLang = function (langId) {
return options.defaultCompiler[langId];
};
CompilerService.prototype.processFromLangAndCompiler = function (languageId, compilerId) {
var langId = languageId;
var foundCompiler = null;
try {
if (langId) {
if (!compilerId) {
compilerId = this.getDefaultCompilerForLang(langId);
}
foundCompiler = this.findCompiler(langId, compilerId);
if (!foundCompiler) {
var compilers = this.getCompilersForLang(langId);
foundCompiler = compilers[_.first(_.keys(compilers))];
}
} else if (compilerId) {
var matchingCompilers =_.map(options.languages, function (lang) {
var compiler = this.findCompiler(lang.id, compilerId);
if (compiler) {
return {
langId: lang.id,
compiler: compiler
};
}
return null;
}, this);
var match = _.find(matchingCompilers, function (match) {
return (match !== null);
});
return match;
} else {
var firstLang = _.first(_.values(options.languages));
if (firstLang) {
return this.processFromLangAndCompiler(firstLang.id, compilerId);
}
}
} catch (e) {
Sentry.captureException(e);
}
return {
langId: langId,
compiler: foundCompiler
};
};
CompilerService.prototype.getGroupsInUse = function (langId) {
return _.chain(this.getCompilersForLang(langId))
.map()
.uniq(false, function (compiler) {
return compiler.group;
})
.map(function (compiler) {
return {value: compiler.group, label: compiler.groupName || compiler.group};
})
.sortBy('label')
.value();
};
CompilerService.prototype.getCompilersForLang = function (langId) {
return this.compilersByLang[langId] || {};
};
CompilerService.prototype.findCompilerInList = function (compilers, compilerId) {
if (compilers && compilers[compilerId]) {
return compilers[compilerId];
}
return _.find(compilers, function (compiler) {
return compiler.alias === compilerId;
});
};
CompilerService.prototype.findCompiler = function (langId, compilerId) {
if (!compilerId) return null;
var compilers = this.getCompilersForLang(langId);
return this.findCompilerInList(compilers, compilerId);
};
function handleRequestError(request, reject, xhr, textStatus, errorThrown) {
var error = errorThrown;
if (!error) {
switch (textStatus) {
case "timeout":
error = "Request timed out";
break;
case "abort":
error = "Request was aborted";
break;
case "error":
switch (xhr.status) {
case 500:
error = "Request failed: internal server error";
break;
case 504:
error = "Request failed: gateway timeout";
break;
default:
error = "Request failed: HTTP error code " + xhr.status;
break;
}
break;
default:
error = "Error sending request";
break;
}
}
reject({
request: request,
error: error
});
}
CompilerService.prototype.submit = function (request) {
request.allowStoreCodeDebug = this.allowStoreCodeDebug;
var jsonRequest = JSON.stringify(request);
if (options.doCache) {
var cachedResult = this.cache.get(jsonRequest);
if (cachedResult) {
return Promise.resolve({
request: request,
result: cachedResult,
localCacheHit: true
});
}
}
return new Promise(_.bind(function (resolve, reject) {
var bindHandler = _.partial(handleRequestError, request, reject);
var compilerId = encodeURIComponent(request.compiler);
$.ajax({
type: 'POST',
url: window.location.origin + this.base + 'api/compiler/' + compilerId + '/compile',
dataType: 'json',
contentType: 'application/json',
data: jsonRequest,
success: _.bind(function (result) {
if (result && result.okToCache && options.doCache) {
this.cache.set(jsonRequest, result);
}
resolve({
request: request,
result: result,
localCacheHit: false
});
}, this),
error: bindHandler
});
}, this));
};
CompilerService.prototype.requestPopularArguments = function (compilerId, options) {
return new Promise(_.bind(function (resolve, reject) {
var bindHandler = _.partial(handleRequestError, compilerId, reject);
$.ajax({
type: 'POST',
url: window.location.origin + this.base + 'api/popularArguments/' + compilerId,
dataType: 'json',
data: JSON.stringify({
usedOptions: options,
presplit: false
}),
success: _.bind(function (result) {
resolve({
request: compilerId,
result: result,
localCacheHit: false
});
}, this),
error: bindHandler
});
}, this));
};
CompilerService.prototype.expand = function (source) {
var includeFind = /^\s*#\s*include\s*["<](https?:\/\/[^>"]+)[>"]/;
var lines = source.split("\n");
var promises = [];
_.each(lines, function (line, lineNumZeroBased) {
var match = line.match(includeFind);
if (match) {
promises.push(new Promise(function (resolve) {
var req = $.get(match[1], function (data) {
data = '#line 1 "' + match[1] + '"\n' + data + '\n\n#line ' +
(lineNumZeroBased + 1) + ' "<stdin>"\n';
lines[lineNumZeroBased] = data;
resolve();
});
req.fail(function () {
resolve();
});
}));
}
});
return Promise.all(promises).then(function () {
return lines.join("\n");
});
};
CompilerService.prototype.getSelectizerOrder = function () {
return [
{field: '$order'},
{field: '$score'},
{field: 'name'}
];
};
module.exports = CompilerService;