Initial Commit

Internal Link Generation

util/cli.go

@@ -0,0 +1,62 @@
+/*
+Copyright © 2023 Brian Buller <brian@bullercodeworks.com>
+*/
+package util
+
+import (
+	"bufio"
+	"fmt"
+	"os"
+	"strconv"
+	"strings"
+)
+
+func PromptUser(text string) string {
+	var resp string
+	fmt.Println(text)
+	scanner := bufio.NewScanner(os.Stdin)
+	if scanner.Scan() {
+		resp = scanner.Text()
+	}
+	return resp
+}
+
+func PromptUserOptTrimmed(text string, def string) string {
+	var resp string
+	if def == "" {
+		resp = strings.TrimSpace(PromptUser(text))
+	} else {
+		resp = strings.TrimSpace(PromptUser(fmt.Sprintf("%s [%s]:", text, def)))
+		if resp == "" {
+			resp = def
+		}
+	}
+	for resp == "" {
+		resp = strings.TrimSpace(PromptUser(text))
+		if resp == "" {
+			fmt.Println("Cannot be blank")
+		}
+	}
+	return resp
+}
+func PromptUserTrimmed(text string) string {
+	return PromptUserOptTrimmed(text, "")
+}
+
+func PromptUserInt(text string) int {
+	var resp string
+	var i int
+	for resp == "" {
+		resp = strings.TrimSpace(PromptUser(text))
+		if resp == "" {
+			fmt.Println("Cannot be blank")
+		}
+		var err error
+		i, err = strconv.Atoi(resp)
+		if err != nil {
+			fmt.Println("Must be a number")
+			resp = ""
+		}
+	}
+	return i
+}

util/crypto.go

@@ -0,0 +1,62 @@
+package util
+
+import (
+	"crypto/aes"
+	"crypto/cipher"
+	"crypto/rand"
+	"encoding/base64"
+	"encoding/hex"
+	"errors"
+	"fmt"
+	"io"
+)
+
+func getKey() string {
+	key := []byte("4bUMVpSJjvjwEC7qV2AQjvjwEC7qV2AQ")
+	return hex.EncodeToString(key)
+}
+func Encrypt(input string) (string, error) {
+	btKey, _ := hex.DecodeString(getKey())
+	plaintext := []byte(input)
+
+	// Create a new Cipher Block from the key
+	block, err := aes.NewCipher(btKey)
+	if err != nil {
+		return "", err
+	}
+
+	ciphertext := make([]byte, aes.BlockSize+len(plaintext))
+	iv := ciphertext[:aes.BlockSize]
+	if _, err := io.ReadFull(rand.Reader, iv); err != nil {
+		return "", err
+	}
+
+	stream := cipher.NewCFBEncrypter(block, iv)
+	stream.XORKeyStream(ciphertext[aes.BlockSize:], plaintext)
+
+	// Convert to base64
+	return base64.URLEncoding.EncodeToString(ciphertext), nil
+}
+
+func Decrypt(input string) (string, error) {
+	btKey, _ := hex.DecodeString(getKey())
+	ciphertext, _ := base64.URLEncoding.DecodeString(input)
+
+	block, err := aes.NewCipher(btKey)
+	if err != nil {
+		return "", err
+	}
+
+	if len(ciphertext) < aes.BlockSize {
+		return "", errors.New("ciphertext is too short")
+	}
+	iv := ciphertext[:aes.BlockSize]
+	ciphertext = ciphertext[aes.BlockSize:]
+
+	stream := cipher.NewCFBDecrypter(block, iv)
+
+	// XORKeyStream can work in-place if the two arguments are the same.
+	stream.XORKeyStream(ciphertext, ciphertext)
+
+	return fmt.Sprintf("%s", ciphertext), nil
+}

util/nextcloud.go

@@ -0,0 +1,71 @@
+/*
+Copyright © 2024 Brian Buller <brian@bullercodeworks.com>
+*/
+package util
+
+import (
+	"bytes"
+	"encoding/base64"
+	"errors"
+	"fmt"
+	"io"
+	"net/http"
+	"strings"
+
+	"github.com/spf13/viper"
+)
+
+func GetAuth() (string, error) {
+	username := viper.GetString("ncuser")
+	password, err := Decrypt(viper.GetString("ncpw"))
+	if err != nil {
+		return "", err
+	}
+	auth := username + ":" + password
+	return base64.StdEncoding.EncodeToString([]byte(auth)), nil
+}
+
+func NormalizeLocalPath(path string) string {
+	root := viper.GetString("directory")
+	return strings.TrimPrefix(path, root)
+}
+
+func GetFilesUrl(path string) string {
+	return fmt.Sprintf("%sremote.php/dav/files/%s/%s", viper.GetString("ncurl"), viper.GetString("ncuser"), path)
+}
+
+func GetFileId(url string) (string, error) {
+	var auth string
+	client := &http.Client{}
+	data := bytes.NewBuffer([]byte(`<?xml version="1.0" encoding="UTF-8"?>
+    <d:propfind xmlns:d="DAV:">
+      <d:prop xmlns:oc="http://owncloud.org/ns">
+        <oc:fileid/>
+      </d:prop>
+    </d:propfind>`))
+	req, err := http.NewRequest("PROPFIND", url, data)
+	if err != nil {
+		return "", err
+	}
+	auth, err = GetAuth()
+	if err != nil {
+		return "", err
+	}
+	req.Header.Add("Authorization", "Basic "+auth)
+	resp, err := client.Do(req)
+	if err != nil {
+		return "", err
+	}
+	defer resp.Body.Close()
+	var body []byte
+	body, err = io.ReadAll(resp.Body)
+	wrkArr := strings.Split(string(body), "<oc:fileid>")
+	if len(wrkArr) != 2 {
+		return "", errors.New("Couldn't find File ID")
+	}
+	wrkArr = strings.Split(wrkArr[1], "</oc:fileid>")
+	if len(wrkArr) != 2 {
+		return "", errors.New("Couldn't find File ID")
+	}
+	return wrkArr[0], nil
+}