alexpchin · May 5, 2021 18:58 · Aug 22, 2016 · Aug 22, 2016 · Aug 22, 2016
diff --git a/Session.js b/Session.js
@@ -10,7 +10,6 @@ class Session {
 
   constructor(useragent) {
     this.ua = useragent;
-    this.request = null;
     this.fbdtsg = null;
     this.uid = null;
   }

diff --git a/Session.js b/Session.js
@@ -1,10 +1,10 @@
 'use strict'
 
-let Promise = require('bluebird')
-let fs = Promise.promisifyAll(require('fs'))
-let Cheerio = require('cheerio')
-let Request = require('request')
-let ToughCookie = require('tough-cookie')
+let Promise = require('bluebird');
+let fs = Promise.promisifyAll(require('fs'));
+let Cheerio = require('cheerio');
+let Request = require('request');
+let ToughCookie = require('tough-cookie');
 
 class Session {
 

diff --git a/Session.js b/Session.js
@@ -0,0 +1,114 @@
+'use strict'
+
+let Promise = require('bluebird')
+let fs = Promise.promisifyAll(require('fs'))
+let Cheerio = require('cheerio')
+let Request = require('request')
+let ToughCookie = require('tough-cookie')
+
+class Session {
+
+  constructor(useragent) {
+    this.ua = useragent;
+    this.request = null;
+    this.fbdtsg = null;
+    this.uid = null;
+  }
+
+  dtsg() {
+    return new Promise((resolve, reject) => {
+      if(this.request === null) {
+        reject(new Error("self.request is not set. Are you logged in?"));
+        return;
+      }
+
+      this.request('https://facebook.com', (err, resp, body) => {
+        if(err) {
+          reject(new Error(err));
+          return;
+        }
+
+        let match = /name="fb_dtsg" value="([A-Za-z0-9-_:]+)"/.exec(body);
+        if(match == null) {
+          reject(new Error("Failed to parse fb_dtsg"));
+          return;
+        }
+
+        resolve(match[1]);
+      })
+    })
+  }
+
+  parseEditThisCookieJSON(file) {
+    return new Promise((resolve, reject) => {
+      fs.readFileAsync(file).then((data) => {
+        let cookies = [];
+        let JSONCookies;
+
+        // Catch any errors when parsing JSON
+        try {
+          JSONCookies = JSON.parse(data);
+        } catch(err) {
+          reject(new Error(err));
+          return;
+        }
+
+        // Loop through each cookie in the JSON object adding them to a cooikes array
+        JSONCookies.forEach(cookie => {
+          let extensions = [
+            'session=true',
+            'sameSite=no_restriction'
+          ];
+
+          if(cookie.expirationDate) {
+            extensions.push('expirationDate=' + cookie.expirationDate)
+          }
+
+          cookies.push(new ToughCookie.Cookie({
+            key: cookie.name,
+            value: cookie.value,
+            secure: cookie.secure || false,
+            path: cookie.path,
+            httpOnly: cookie.httpOnly || false,
+            extensions: extensions
+          }));
+
+          // Set the uid property of object with users ID
+          if(cookie.name === 'c_user') {
+            this.uid = cookie.value;
+          }
+        })
+
+        resolve(cookies);
+      })
+    })
+  }
+
+  setCookies(cookies) {
+    let cookieJar = Request.jar();
+
+    return new Promise((resolve, reject) => {
+      this.parseEditThisCookieJSON(cookies).then(cookies => {
+        cookies.forEach(function(cookie) {
+          cookieJar.setCookie(cookie, 'https://facebook.com', (err, cookie) => {
+            if(err) {
+              reject(new Error(err));
+              return;
+            }
+          })
+        })
+
+        this.request = Request.defaults({
+          jar: cookieJar, headers: { 'User-Agent': this.ua }
+        });
+
+        this.dtsg().then(dtsg => {
+          this.fbdtsg = dtsg;
+          resolve(true);
+        })
+      })
+    })
+  }
+}
+
+module.exports = Session;