Hashing

1import (
2    "crypto/sha256"
3    "encoding/hex"
4    "flag"
5    "fmt"
6    "io"
7    "log"
8    "os"
9    "path/filepath"
10    "time"
11)
12
13func main() {
14    pathParam := flag.String("path", ".", "Enter Filesystem Path to list folders")
15    flag.Parse()
16    start := time.Now()
17    run(*pathParam)
18    elapsed := time.Since(start)
19    log.Printf("Time elapsed: %v", elapsed)
20}
21
22func run(path string) {
23    chashes := make(chan string, 50)
24    cfiles := make(chan string)
25
26    go func() {
27        readfs(path, cfiles)
28        defer close(cfiles)
29    }()
30    go func() {
31        generateHash(cfiles, chashes)
32    }()
33    defer close(chashes)
34    for hash := range chashes {
35        fmt.Println(hash)
36    }
37}
38
39func readfs(path string, cfiles chan string) {
40    files, err := os.ReadDir(path)
41    if err != nil {
42        log.Fatalln(err)
43    }
44    for _, file := range files {
45        filename := filepath.Join(path, file.Name())
46        if file.IsDir() {
47            readfs(filename, cfiles)
48            continue
49        } else {
50            cfiles <- filename
51        }
52    }
53}
54
55func generateHash(cfiles chan string, chashes chan string) {
56    for filename := range cfiles {
57        go func(filename string) {
58            var checksum string
59            var oError bool = false
60            file, err := os.Open(filename)
61            if err != nil {
62                oError = true
63                errorMsg := "ERROR: " + err.Error()
64                log.Println(errorMsg)
65                checksum = errorMsg
66            }
67            defer file.Close()
68
69            if !oError {
70                hash := sha256.New()
71                if _, err := io.Copy(hash, file); err != nil {
72                    errorMsg := "ERROR: " + err.Error()
73                    log.Println(errorMsg)
74                    checksum = errorMsg
75                }
76                if len(checksum) == 0 {
77                    checksum = hex.EncodeToString(hash.Sum(nil))
78                }
79            }
80            chashes <- filename + "||" + checksum
81        }(filename)
82    } //for files
83}
84

1Table Employees
2|ID (Primary Key)| Name | Department|
3|:---------------|:----:|----------:|
4|       1        | Jack |    IT     |   
5|       2        | Amy  |  Finance  |
6
7Table Transactions
8|Sold Product| Sold By(Foreign Key)| Sold To|
9|:-----------|:-------------------:|-------:|
10|    TV      |          1          |  Mary  |
11|   Radio    |          1          |  Bob   |
12|   Mobile   |          2          |  Lisa  |
13

1"configurations": {
2    "production": {
3        "fileReplacements": [
4            {
5              "replace": "src/environments/environment.ts",
6              "with": "src/environments/environment.prod.ts"
7            }
8          ],
9          "optimization": true,
10          "outputHashing": "all" <-----
11

1"configurations": {
2    "production": {
3        "fileReplacements": [
4            {
5              "replace": "src/environments/environment.ts",
6              "with": "src/environments/environment.prod.ts"
7            }
8          ],
9          "optimization": true,
10          "outputHashing": "all" <-----
11main.07258fce7f84f8b6013e.js
12polyfills.4cc5b416b55531e38cd8.js
13runtime.734c276f75a5d81bc54b.js
14

1import { createContext } from "react";
2export const UserContext = createContext(null);
3

1import { createContext } from "react";
2export const UserContext = createContext(null);
3const App = () => {
4  const [context, setContext] = useState(null);
5
6  return (
7    <div className="App">
8      <BrowserRouter>
9        <UserContext.Provider value={{ context, setContext }}>
10          <Navbar />
11          <Route path="/" exact component={LandingPage} />
12          <Route path="/sign-in" exact component={SignIn} />
13          <Route path="/sign-up" exact component={SignUp} />
14          <Route path="/profile" exact component={Profile} />
15        </UserContext.Provider>
16      </BrowserRouter>
17    </div>
18  );
19};
20
21export default App;
22

1import { createContext } from "react";
2export const UserContext = createContext(null);
3const App = () => {
4  const [context, setContext] = useState(null);
5
6  return (
7    <div className="App">
8      <BrowserRouter>
9        <UserContext.Provider value={{ context, setContext }}>
10          <Navbar />
11          <Route path="/" exact component={LandingPage} />
12          <Route path="/sign-in" exact component={SignIn} />
13          <Route path="/sign-up" exact component={SignUp} />
14          <Route path="/profile" exact component={Profile} />
15        </UserContext.Provider>
16      </BrowserRouter>
17    </div>
18  );
19};
20
21export default App;
22import { GetUser } from "../api/AuthenticateUser";
23
24const Profile = () => {
25  const { context, setContext } = useContext(UserContext);
26
27  return (
28    <div>
29      {context}
30      <button onClick={() => GetUser()}>Change context</button>
31    </div>
32  );
33};
34
35export default Profile;
36

1import { createContext } from "react";
2export const UserContext = createContext(null);
3const App = () => {
4  const [context, setContext] = useState(null);
5
6  return (
7    <div className="App">
8      <BrowserRouter>
9        <UserContext.Provider value={{ context, setContext }}>
10          <Navbar />
11          <Route path="/" exact component={LandingPage} />
12          <Route path="/sign-in" exact component={SignIn} />
13          <Route path="/sign-up" exact component={SignUp} />
14          <Route path="/profile" exact component={Profile} />
15        </UserContext.Provider>
16      </BrowserRouter>
17    </div>
18  );
19};
20
21export default App;
22import { GetUser } from "../api/AuthenticateUser";
23
24const Profile = () => {
25  const { context, setContext } = useContext(UserContext);
26
27  return (
28    <div>
29      {context}
30      <button onClick={() => GetUser()}>Change context</button>
31    </div>
32  );
33};
34
35export default Profile;
36import axios from "axios";
37
38export const GetUser = () => {
39  try {
40    axios
41      .get("http://localhost:4000/get-user", {
42        withCredentials: true,
43      })
44      .then((response) => {
45        console.log(response);
46      });
47  } catch (e) {
48    console.log(`Axios request failed: ${e}`);
49  }
50};
51
52

1import { createContext } from "react";
2export const UserContext = createContext(null);
3const App = () => {
4  const [context, setContext] = useState(null);
5
6  return (
7    <div className="App">
8      <BrowserRouter>
9        <UserContext.Provider value={{ context, setContext }}>
10          <Navbar />
11          <Route path="/" exact component={LandingPage} />
12          <Route path="/sign-in" exact component={SignIn} />
13          <Route path="/sign-up" exact component={SignUp} />
14          <Route path="/profile" exact component={Profile} />
15        </UserContext.Provider>
16      </BrowserRouter>
17    </div>
18  );
19};
20
21export default App;
22import { GetUser } from "../api/AuthenticateUser";
23
24const Profile = () => {
25  const { context, setContext } = useContext(UserContext);
26
27  return (
28    <div>
29      {context}
30      <button onClick={() => GetUser()}>Change context</button>
31    </div>
32  );
33};
34
35export default Profile;
36import axios from "axios";
37
38export const GetUser = () => {
39  try {
40    axios
41      .get("http://localhost:4000/get-user", {
42        withCredentials: true,
43      })
44      .then((response) => {
45        console.log(response);
46      });
47  } catch (e) {
48    console.log(`Axios request failed: ${e}`);
49  }
50};
51
52const express = require("express");
53const app = express();
54require("dotenv").config();
55const cors = require("cors");
56const mysql = require("mysql");
57const jwt = require("jsonwebtoken");
58const cookieParser = require("cookie-parser");
59// hashing algorithm
60const bcrypt = require("bcrypt");
61const salt = 10;
62
63// app objects instantiated on creation of the express server
64app.use(
65  cors({
66    origin: ["http://localhost:3000"],
67    methods: ["GET", "POST"],
68    credentials: true,
69  })
70);
71app.use(express.json());
72app.use(express.urlencoded({ extended: true }));
73app.use(cookieParser());
74
75const db = mysql.createPool({
76  host: "localhost",
77  user: "root",
78  password: "password",
79  database: "mysql_db",
80});
81
82//create access token
83const createAccessToken = (user) => {
84  // create new JWT access token
85  const accessToken = jwt.sign(
86    { id: user.id, email: user.email },
87    process.env.ACCESS_TOKEN_SECRET,
88    {
89      expiresIn: "1h",
90    }
91  );
92  return accessToken;
93};
94
95//create refresh token
96const createRefreshToken = (user) => {
97  // create new JWT access token
98  const refreshToken = jwt.sign(
99    { id: user.id, email: user.email },
100    process.env.REFRESH_TOKEN_SECRET,
101    {
102      expiresIn: "1m",
103    }
104  );
105  return refreshToken;
106};
107
108// verify if user has a valid token, when user wants to access resources
109const authenticateAccessToken = (req, res, next) => {
110  //check if user has access token
111  const accessToken = req.cookies["access-token"];
112
113  // if access token does not exist
114  if (!accessToken) {
115    return res.sendStatus(401);
116  }
117
118  // check if access token is valid
119  // use verify function to check if token is valid
120  jwt.verify(accessToken, process.env.ACCESS_TOKEN_SECRET, (err, user) => {
121    if (err) return res.sendStatus(403);
122    req.user = user;
123    return next();
124  });
125};
126
127app.post("/token", (req, res) => {
128  const refreshToken = req.cookies["refresh-token"];
129  // check if refresh token exist
130  if (!refreshToken) return res.sendStatus(401);
131
132  // verify refresh token
133  jwt.verify(refreshToken, process.env.REFRESH_TOKEN_SECRET, (err, user) => {
134    if (err) return res.sendStatus(401);
135
136    // check for refresh token in database and identify potential user
137    sqlFindUser = "SELECT * FROM user_db WHERE refresh_token = ?";
138    db.query(sqlFindUser, [refreshToken], (err, user) => {
139      // if no user found
140      if (user.length === 0) return res.sendStatus(401);
141
142      const accessToken = createAccessToken(user[0]);
143      res.cookie("access-token", accessToken, {
144        maxAge: 10000*60, //1h
145        httpOnly: true, 
146      });
147      res.send(user[0]);
148    });
149  });
150});
151
152/**
153 * Log out functionality which deletes all cookies containing tokens and deletes refresh token from database
154 */
155app.delete("/logout", (req, res) => {
156  const refreshToken = req.cookies["refresh-token"];
157  // delete refresh token from database
158  const sqlRemoveRefreshToken =
159    "UPDATE user_db SET refresh_token = NULL WHERE refresh_token = ?";
160  db.query(sqlRemoveRefreshToken, [refreshToken], (err, result) => {
161    if (err) return res.sendStatus(401);
162
163    // delete all cookies
164    res.clearCookie("access-token");
165    res.clearCookie("refresh-token");
166    res.end();
167  });
168});
169
170// handle user sign up
171app.post("/sign-up", (req, res) => {
172  //request information from frontend
173  const { first_name, last_name, email, password } = req.body;
174
175  // hash using bcrypt
176  bcrypt.hash(password, salt, (err, hash) => {
177    if (err) {
178      res.send({ err: err });
179    }
180
181    // insert into backend with hashed password
182    const sqlInsert =
183      "INSERT INTO user_db (first_name, last_name, email, password) VALUES (?,?,?,?)";
184    db.query(sqlInsert, [first_name, last_name, email, hash], (err, result) => {
185      res.send(err);
186    });
187  });
188});
189
190/*
191 * Handel user login
192 */
193app.post("/sign-in", (req, res) => {
194  const { email, password } = req.body;
195
196  sqlSelectAllUsers = "SELECT * FROM user_db WHERE email = ?";
197  db.query(sqlSelectAllUsers, [email], (err, user) => {
198    if (err) {
199      res.send({ err: err });
200    }
201
202    if (user && user.length > 0) {
203      // given the email check if the password is correct
204
205      bcrypt.compare(password, user[0].password, (err, compareUser) => {
206        if (compareUser) {
207          //req.session.email = user;
208          // create access token
209          const accessToken = createAccessToken(user[0]);
210          const refreshToken = createRefreshToken(user[0]);
211          // create cookie and store it in users browser
212          res.cookie("access-token", accessToken, {
213            maxAge: 10000*60, //1h
214            httpOnly: true, 
215          });
216          res.cookie("refresh-token", refreshToken, {
217            maxAge: 2.63e9, // approx 1 month
218            httpOnly: true,
219          });
220
221          // update refresh token in database
222          const sqlUpdateToken =
223            "UPDATE user_db SET refresh_token = ? WHERE email = ?";
224          db.query(
225            sqlUpdateToken,
226            [refreshToken, user[0].email],
227            (err, result) => {
228              if (err) {
229                res.send(err);
230              }
231              res.sendStatus(200);
232            }
233          );
234        } else {
235          res.send({ message: "Wrong email or password" });
236        }
237      });
238    } else {
239      res.send({ message: "Wrong email or password" });
240    }
241  });
242});
243
244app.get("/get-user", (req, res) => {
245  const accessToken = req.cookies["acceess-token"];
246  const refreshToken = req.cookies["refresh-token"];
247  //if (!accessToken && !refreshToken) res.sendStatus(401);
248
249  // get user from database using refresh token
250  // check for refresh token in database and identify potential user
251  sqlFindUser = "SELECT * FROM user_db WHERE refresh_token = ?";
252  db.query(sqlFindUser, [refreshToken], (err, user) => {
253    console.log(user);
254    return res.json(user);
255  });
256});
257
258app.listen(4000, () => {
259  console.log("running on port 4000");
260});
261
262

1https://example.com/mojjo-test/index.html#/ 
2

1https://example.com/mojjo-test/index.html#/ 
2 <base href="/mojjo-test/">
3

1https://example.com/mojjo-test/index.html#/ 
2 <base href="/mojjo-test/">
3    http://example.com/mojjo-test/index.html
4

1https://example.com/mojjo-test/index.html#/ 
2 <base href="/mojjo-test/">
3    http://example.com/mojjo-test/index.html
4    http://example.com/mojjo-test/#/
5

1Installed packages:=====================] 100% Fetch remote repository...
2Path                 | Version | Description                    | Location
3-------              | ------- | -------                        | -------
4build-tools;29.0.2   | 29.0.2  | Android SDK Build-Tools 29.0.2 | build-tools/29.0.2
5emulator             | 30.8.4  | Android Emulator               | emulator
6patcher;v4           | 1       | SDK Patch Applier v4           | patcher/v4
7platform-tools       | 31.0.3  | Android SDK Platform-Tools     | platform-tools
8platforms;android-29 | 5       | Android SDK Platform 29        | platforms/android-29
9

1Installed packages:=====================] 100% Fetch remote repository...
2Path                 | Version | Description                    | Location
3-------              | ------- | -------                        | -------
4build-tools;29.0.2   | 29.0.2  | Android SDK Build-Tools 29.0.2 | build-tools/29.0.2
5emulator             | 30.8.4  | Android Emulator               | emulator
6patcher;v4           | 1       | SDK Patch Applier v4           | patcher/v4
7platform-tools       | 31.0.3  | Android SDK Platform-Tools     | platform-tools
8platforms;android-29 | 5       | Android SDK Platform 29        | platforms/android-29
9> Task :app:compileReleaseJavaWithJavac FAILED
10/home/zonyx/git/gitlab/studio/platforms/android/app/src/main/java/org/apache/cordova/camera/CameraLauncher.java:42: error: package android.support.v4.content does not exist
11import android.support.v4.content.FileProvider;
12                                ^
13/home/zonyx/git/gitlab/studio/platforms/android/app/src/main/java/org/apache/cordova/camera/FileProvider.java:21: error: package android.support.v4.content does not exist
14public class FileProvider extends android.support.v4.content.FileProvider {}
15                                                            ^
16/home/zonyx/git/gitlab/studio/platforms/android/app/src/main/java/org/apache/cordova/camera/CameraLauncher.java:297: error: cannot find symbol
17        this.imageUri = FileProvider.getUriForFile(cordova.getActivity(),
18                                    ^
19symbol:   method getUriForFile(Activity,String,File)
20location: class FileProvider
21/home/zonyx/git/gitlab/studio/platforms/android/app/src/main/java/org/apache/cordova/camera/CameraLauncher.java:824: error: cannot find symbol
22                        Uri tmpFile = FileProvider.getUriForFile(cordova.getActivity(),
23                                                ^
24symbol:   method getUriForFile(Activity,String,File)
25location: class FileProvider
26Note: Some input files use or override a deprecated API.
27Note: Recompile with -Xlint:deprecation for details.
28Note: Some input files use unchecked or unsafe operations.
29Note: Recompile with -Xlint:unchecked for details.
304 errors
31

1Installed packages:=====================] 100% Fetch remote repository...
2Path                 | Version | Description                    | Location
3-------              | ------- | -------                        | -------
4build-tools;29.0.2   | 29.0.2  | Android SDK Build-Tools 29.0.2 | build-tools/29.0.2
5emulator             | 30.8.4  | Android Emulator               | emulator
6patcher;v4           | 1       | SDK Patch Applier v4           | patcher/v4
7platform-tools       | 31.0.3  | Android SDK Platform-Tools     | platform-tools
8platforms;android-29 | 5       | Android SDK Platform 29        | platforms/android-29
9> Task :app:compileReleaseJavaWithJavac FAILED
10/home/zonyx/git/gitlab/studio/platforms/android/app/src/main/java/org/apache/cordova/camera/CameraLauncher.java:42: error: package android.support.v4.content does not exist
11import android.support.v4.content.FileProvider;
12                                ^
13/home/zonyx/git/gitlab/studio/platforms/android/app/src/main/java/org/apache/cordova/camera/FileProvider.java:21: error: package android.support.v4.content does not exist
14public class FileProvider extends android.support.v4.content.FileProvider {}
15                                                            ^
16/home/zonyx/git/gitlab/studio/platforms/android/app/src/main/java/org/apache/cordova/camera/CameraLauncher.java:297: error: cannot find symbol
17        this.imageUri = FileProvider.getUriForFile(cordova.getActivity(),
18                                    ^
19symbol:   method getUriForFile(Activity,String,File)
20location: class FileProvider
21/home/zonyx/git/gitlab/studio/platforms/android/app/src/main/java/org/apache/cordova/camera/CameraLauncher.java:824: error: cannot find symbol
22                        Uri tmpFile = FileProvider.getUriForFile(cordova.getActivity(),
23                                                ^
24symbol:   method getUriForFile(Activity,String,File)
25location: class FileProvider
26Note: Some input files use or override a deprecated API.
27Note: Recompile with -Xlint:deprecation for details.
28Note: Some input files use unchecked or unsafe operations.
29Note: Recompile with -Xlint:unchecked for details.
304 errors
31desc 'Compile a new build for Android'
32lane :build do |options|
33  Dir.chdir('..') do
34    before_build(options)
35    ionic_build
36    sh("ionic cordova build android --device --release --aot false --environment prod --output-hashing all \
37    --sourcemaps false --extract-css true --named-chunks false --build-optimizer true --minifyjs=true \
38    --minifycss=true --optimizejs=true")
39    deeplinks(action: 'uninstall')
40  end
41end
42