1 files changed, 303 insertions, 0 deletions
diff --git a/lib/adapters/http.js b/lib/adapters/http.js
new file mode 100755
index 0000000..f32241f
--- /dev/null
+++ b/lib/adapters/http.js
@@ -0,0 +1,303 @@
+'use strict';
+
+var utils = require('./../utils');
+var settle = require('./../core/settle');
+var buildFullPath = require('../core/buildFullPath');
+var buildURL = require('./../helpers/buildURL');
+var http = require('http');
+var https = require('https');
+var httpFollow = require('follow-redirects').http;
+var httpsFollow = require('follow-redirects').https;
+var url = require('url');
+var zlib = require('zlib');
+var pkg = require('./../../package.json');
+var createError = require('../core/createError');
+var enhanceError = require('../core/enhanceError');
+
+var isHttps = /https:?/;
+
+/**
+ *
+ * @param {http.ClientRequestArgs} options
+ * @param {AxiosProxyConfig} proxy
+ * @param {string} location
+ */
+function setProxy(options, proxy, location) {
+  options.hostname = proxy.host;
+  options.host = proxy.host;
+  options.port = proxy.port;
+  options.path = location;
+
+  // Basic proxy authorization
+  if (proxy.auth) {
+    var base64 = Buffer.from(proxy.auth.username + ':' + proxy.auth.password, 'utf8').toString('base64');
+    options.headers['Proxy-Authorization'] = 'Basic ' + base64;
+  }
+
+  // If a proxy is used, any redirects must also pass through the proxy
+  options.beforeRedirect = function beforeRedirect(redirection) {
+    redirection.headers.host = redirection.host;
+    setProxy(redirection, proxy, redirection.href);
+  };
+}
+
+/*eslint consistent-return:0*/
+module.exports = function httpAdapter(config) {
+  return new Promise(function dispatchHttpRequest(resolvePromise, rejectPromise) {
+    var resolve = function resolve(value) {
+      resolvePromise(value);
+    };
+    var reject = function reject(value) {
+      rejectPromise(value);
+    };
+    var data = config.data;
+    var headers = config.headers;
+
+    // Set User-Agent (required by some servers)
+    // Only set header if it hasn't been set in config
+    // See https://github.com/axios/axios/issues/69
+    if (!headers['User-Agent'] && !headers['user-agent']) {
+      headers['User-Agent'] = 'axios/' + pkg.version;
+    }
+
+    if (data && !utils.isStream(data)) {
+      if (Buffer.isBuffer(data)) {
+        // Nothing to do...
+      } else if (utils.isArrayBuffer(data)) {
+        data = Buffer.from(new Uint8Array(data));
+      } else if (utils.isString(data)) {
+        data = Buffer.from(data, 'utf-8');
+      } else {
+        return reject(createError(
+          'Data after transformation must be a string, an ArrayBuffer, a Buffer, or a Stream',
+          config
+        ));
+      }
+
+      // Add Content-Length header if data exists
+      headers['Content-Length'] = data.length;
+    }
+
+    // HTTP basic authentication
+    var auth = undefined;
+    if (config.auth) {
+      var username = config.auth.username || '';
+      var password = config.auth.password || '';
+      auth = username + ':' + password;
+    }
+
+    // Parse url
+    var fullPath = buildFullPath(config.baseURL, config.url);
+    var parsed = url.parse(fullPath);
+    var protocol = parsed.protocol || 'http:';
+
+    if (!auth && parsed.auth) {
+      var urlAuth = parsed.auth.split(':');
+      var urlUsername = urlAuth[0] || '';
+      var urlPassword = urlAuth[1] || '';
+      auth = urlUsername + ':' + urlPassword;
+    }
+
+    if (auth) {
+      delete headers.Authorization;
+    }
+
+    var isHttpsRequest = isHttps.test(protocol);
+    var agent = isHttpsRequest ? config.httpsAgent : config.httpAgent;
+
+    var options = {
+      path: buildURL(parsed.path, config.params, config.paramsSerializer).replace(/^\?/, ''),
+      method: config.method.toUpperCase(),
+      headers: headers,
+      agent: agent,
+      agents: { http: config.httpAgent, https: config.httpsAgent },
+      auth: auth
+    };
+
+    if (config.socketPath) {
+      options.socketPath = config.socketPath;
+    } else {
+      options.hostname = parsed.hostname;
+      options.port = parsed.port;
+    }
+
+    var proxy = config.proxy;
+    if (!proxy && proxy !== false) {
+      var proxyEnv = protocol.slice(0, -1) + '_proxy';
+      var proxyUrl = process.env[proxyEnv] || process.env[proxyEnv.toUpperCase()];
+      if (proxyUrl) {
+        var parsedProxyUrl = url.parse(proxyUrl);
+        var noProxyEnv = process.env.no_proxy || process.env.NO_PROXY;
+        var shouldProxy = true;
+
+        if (noProxyEnv) {
+          var noProxy = noProxyEnv.split(',').map(function trim(s) {
+            return s.trim();
+          });
+
+          shouldProxy = !noProxy.some(function proxyMatch(proxyElement) {
+            if (!proxyElement) {
+              return false;
+            }
+            if (proxyElement === '*') {
+              return true;
+            }
+            if (proxyElement[0] === '.' &&
+                parsed.hostname.substr(parsed.hostname.length - proxyElement.length) === proxyElement) {
+              return true;
+            }
+
+            return parsed.hostname === proxyElement;
+          });
+        }
+
+        if (shouldProxy) {
+          proxy = {
+            host: parsedProxyUrl.hostname,
+            port: parsedProxyUrl.port,
+            protocol: parsedProxyUrl.protocol
+          };
+
+          if (parsedProxyUrl.auth) {
+            var proxyUrlAuth = parsedProxyUrl.auth.split(':');
+            proxy.auth = {
+              username: proxyUrlAuth[0],
+              password: proxyUrlAuth[1]
+            };
+          }
+        }
+      }
+    }
+
+    if (proxy) {
+      options.headers.host = parsed.hostname + (parsed.port ? ':' + parsed.port : '');
+      setProxy(options, proxy, protocol + '//' + parsed.hostname + (parsed.port ? ':' + parsed.port : '') + options.path);
+    }
+
+    var transport;
+    var isHttpsProxy = isHttpsRequest && (proxy ? isHttps.test(proxy.protocol) : true);
+    if (config.transport) {
+      transport = config.transport;
+    } else if (config.maxRedirects === 0) {
+      transport = isHttpsProxy ? https : http;
+    } else {
+      if (config.maxRedirects) {
+        options.maxRedirects = config.maxRedirects;
+      }
+      transport = isHttpsProxy ? httpsFollow : httpFollow;
+    }
+
+    if (config.maxBodyLength > -1) {
+      options.maxBodyLength = config.maxBodyLength;
+    }
+
+    // Create the request
+    var req = transport.request(options, function handleResponse(res) {
+      if (req.aborted) return;
+
+      // uncompress the response body transparently if required
+      var stream = res;
+
+      // return the last request in case of redirects
+      var lastRequest = res.req || req;
+
+
+      // if no content, is HEAD request or decompress disabled we should not decompress
+      if (res.statusCode !== 204 && lastRequest.method !== 'HEAD' && config.decompress !== false) {
+        switch (res.headers['content-encoding']) {
+        /*eslint default-case:0*/
+        case 'gzip':
+        case 'compress':
+        case 'deflate':
+        // add the unzipper to the body stream processing pipeline
+          stream = stream.pipe(zlib.createUnzip());
+
+          // remove the content-encoding in order to not confuse downstream operations
+          delete res.headers['content-encoding'];
+          break;
+        }
+      }
+
+      var response = {
+        status: res.statusCode,
+        statusText: res.statusMessage,
+        headers: res.headers,
+        config: config,
+        request: lastRequest
+      };
+
+      if (config.responseType === 'stream') {
+        response.data = stream;
+        settle(resolve, reject, response);
+      } else {
+        var responseBuffer = [];
+        stream.on('data', function handleStreamData(chunk) {
+          responseBuffer.push(chunk);
+
+          // make sure the content length is not over the maxContentLength if specified
+          if (config.maxContentLength > -1 && Buffer.concat(responseBuffer).length > config.maxContentLength) {
+            stream.destroy();
+            reject(createError('maxContentLength size of ' + config.maxContentLength + ' exceeded',
+              config, null, lastRequest));
+          }
+        });
+
+        stream.on('error', function handleStreamError(err) {
+          if (req.aborted) return;
+          reject(enhanceError(err, config, null, lastRequest));
+        });
+
+        stream.on('end', function handleStreamEnd() {
+          var responseData = Buffer.concat(responseBuffer);
+          if (config.responseType !== 'arraybuffer') {
+            responseData = responseData.toString(config.responseEncoding);
+            if (!config.responseEncoding || config.responseEncoding === 'utf8') {
+              responseData = utils.stripBOM(responseData);
+            }
+          }
+
+          response.data = responseData;
+          settle(resolve, reject, response);
+        });
+      }
+    });
+
+    // Handle errors
+    req.on('error', function handleRequestError(err) {
+      if (req.aborted && err.code !== 'ERR_FR_TOO_MANY_REDIRECTS') return;
+      reject(enhanceError(err, config, null, req));
+    });
+
+    // Handle request timeout
+    if (config.timeout) {
+      // Sometime, the response will be very slow, and does not respond, the connect event will be block by event loop system.
+      // And timer callback will be fired, and abort() will be invoked before connection, then get "socket hang up" and code ECONNRESET.
+      // At this time, if we have a large number of request, nodejs will hang up some socket on background. and the number will up and up.
+      // And then these socket which be hang up will devoring CPU little by little.
+      // ClientRequest.setTimeout will be fired on the specify milliseconds, and can make sure that abort() will be fired after connect.
+      req.setTimeout(config.timeout, function handleRequestTimeout() {
+        req.abort();
+        reject(createError('timeout of ' + config.timeout + 'ms exceeded', config, 'ECONNABORTED', req));
+      });
+    }
+
+    if (config.cancelToken) {
+      // Handle cancellation
+      config.cancelToken.promise.then(function onCanceled(cancel) {
+        if (req.aborted) return;
+
+        req.abort();
+        reject(cancel);
+      });
+    }
+
+    // Send the request
+    if (utils.isStream(data)) {
+      data.on('error', function handleStreamError(err) {
+        reject(enhanceError(err, config, null, req));
+      }).pipe(req);
+    } else {
+      req.end(data);
+    }
+  });
+};