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curl-to-json.js
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curl-to-json.js
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/**
* Copyright (c) 2014-2016 Nick Carneiro
* https://github.com/curlconverter/curlconverter
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*/
import parseCurlCommand from './parse-curl';
import * as querystring from 'query-string';
import * as jsesc from 'jsesc';
function getContentType(headers = {}) {
const contentType = Object.keys(headers).find((key) => key.toLowerCase() === 'content-type');
return contentType ? headers[contentType] : null;
}
function repr(value, isKey) {
return isKey ? "'" + jsesc(value, { quotes: 'single' }) + "'" : value;
}
function getQueries(request) {
const queries = {};
for (const paramName in request.query) {
const rawValue = request.query[paramName];
let paramValue;
if (Array.isArray(rawValue)) {
paramValue = rawValue.map(repr);
} else {
paramValue = repr(rawValue);
}
queries[repr(paramName)] = paramValue;
}
return queries;
}
function getDataString(request) {
if (typeof request.data === 'number') {
request.data = request.data.toString();
}
const contentType = getContentType(request.headers);
if (contentType && contentType.includes('application/json')) {
return { data: request.data.toString() };
}
const parsedQueryString = querystring.parse(request.data, { sort: false });
// if missing `=`, `query-string` will set value as `null`. Reset value as empty string ('') here.
// https://github.com/sindresorhus/query-string/blob/3d8fbf2328220c06e45f166cdf58e70617c7ee68/base.js#L364-L366
Object.keys(parsedQueryString).forEach((key) => {
if (parsedQueryString[key] === null) {
parsedQueryString[key] = '';
}
});
const keyCount = Object.keys(parsedQueryString).length;
const singleKeyOnly = keyCount === 1 && !parsedQueryString[Object.keys(parsedQueryString)[0]];
const singularData = request.isDataBinary || singleKeyOnly;
if (singularData) {
const data = {};
data[repr(request.data)] = '';
return { data: data };
} else {
return getMultipleDataString(request, parsedQueryString);
}
}
function getMultipleDataString(request, parsedQueryString) {
const data = {};
for (const key in parsedQueryString) {
const value = parsedQueryString[key];
if (Array.isArray(value)) {
data[repr(key)] = value;
} else {
data[repr(key)] = repr(value);
}
}
return { data: data };
}
function getFilesString(request) {
const data = {};
data.files = {};
data.data = {};
for (const multipartKey in request.multipartUploads) {
const multipartValue = request.multipartUploads[multipartKey];
if (multipartValue.startsWith('@')) {
const fileName = multipartValue.slice(1);
data.files[repr(multipartKey)] = repr(fileName);
} else {
data.data[repr(multipartKey)] = repr(multipartValue);
}
}
if (Object.keys(data.files).length === 0) {
delete data.files;
}
if (Object.keys(data.data).length === 0) {
delete data.data;
}
return data;
}
const curlToJson = (curlCommand) => {
const request = parseCurlCommand(curlCommand);
const requestJson = {};
// curl automatically prepends 'http' if the scheme is missing, but python fails and returns an error
// we tack it on here to mimic curl
if (!request.url.match(/https?:/)) {
request.url = 'http://' + request.url;
}
if (!request.urlWithoutQuery.match(/https?:/)) {
request.urlWithoutQuery = 'http://' + request.urlWithoutQuery;
}
requestJson.url = request.urlWithoutQuery.replace(/\/$/, '');
requestJson.raw_url = request.url;
requestJson.method = request.method;
if (request.cookies) {
const cookies = {};
for (const cookieName in request.cookies) {
cookies[repr(cookieName)] = repr(request.cookies[cookieName]);
}
requestJson.cookies = cookies;
}
if (request.headers) {
const headers = {};
for (const headerName in request.headers) {
headers[repr(headerName)] = repr(request.headers[headerName]);
}
requestJson.headers = headers;
}
if (request.query) {
requestJson.queries = getQueries(request);
}
if (typeof request.data === 'string' || typeof request.data === 'number') {
Object.assign(requestJson, getDataString(request));
} else if (request.multipartUploads) {
Object.assign(requestJson, getFilesString(request));
}
if (request.insecure) {
requestJson.insecure = false;
}
if (request.auth) {
const splitAuth = request.auth.split(':');
const user = splitAuth[0] || '';
const password = splitAuth[1] || '';
requestJson.auth = {
user: repr(user),
password: repr(password)
};
}
return Object.keys(requestJson).length ? requestJson : {};
};
export default curlToJson;