📄 Make repository AGPLv3

Reviewed-on: #17
Reviewed-by: Hacki <hacki@noreply.localhost>

.env

@@ -1,7 +1,6 @@
-PLAKKEN_INTERFACE=0.0.0.0
-PLAKKEN_PORT=3000
-PLAKKEN_REDIS_ADDR=localhost:6379
+PLAKKEN_LISTEN=:3000
+PLAKKEN_REDIS_ADDRESS=localhost:6379
 PLAKKEN_REDIS_USER=
 PLAKKEN_REDIS_PASSWORD=
 PLAKKEN_REDIS_DB=0
-PLAKKEN_REDIS_URL_LEN=5
+PLAKKEN_URL_LENGTH=5

.env.example

@@ -1,6 +0,0 @@
-PLAKKEN_HOST=0.0.0.0
-PLAKKEN_PORT=3000
-PLAKKEN_REDIS_ADDR=localhost:6379
-PLAKKEN_REDIS_USER=
-PLAKKEN_REDIS_PASSWORD=
-PLAKKEN_REDIS_DB=0

.gitignore

@@ -1,3 +1,7 @@
+# IDE specific
+.idea
+.vscode
+
 ### Go ###
 *.exe
 *.exe~

.golangci.yaml

@@ -0,0 +1,25 @@
+linters:
+  enable-all: true
+  disable:
+    # Deprecated
+    - varcheck
+    - ifshort
+    - interfacer
+    - maligned
+    - deadcode
+    - scopelint
+    - golint
+    - structcheck
+    - exhaustivestruct
+    - nosnakecase
+    # Too extremist/unusable
+    - depguard
+    - varnamelen
+    - exhaustruct
+    - wsl
+    - contextcheck
+    - wrapcheck
+linters-settings:
+  lll:
+    # Too short byt default
+    line-length: 160

.idea/.gitignore

@@ -1,6 +0,0 @@
-# Default ignored files
-/shelf/
-/workspace.xml
-# Datasource local storage ignored files
-/dataSources/
-/dataSources.local.xml

.idea/modules.xml

@@ -1,8 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="ProjectModuleManager">
-    <modules>
-      <module fileurl="file://$PROJECT_DIR$/.idea/plakken.iml" filepath="$PROJECT_DIR$/.idea/plakken.iml" />
-    </modules>
-  </component>
-</project>

.idea/plakken.iml

@@ -1,10 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<module type="WEB_MODULE" version="4">
-  <component name="Go" enabled="true" />
-  <component name="NewModuleRootManager">
-    <content url="file://$MODULE_DIR$" />
-    <orderEntry type="inheritedJdk" />
-    <orderEntry type="sourceFolder" forTests="false" />
-    <orderEntry type="library" name="highlight.js" level="application" />
-  </component>
-</module>

.idea/vcs.xml

@@ -1,6 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="VcsDirectoryMappings">
-    <mapping directory="$PROJECT_DIR$" vcs="Git" />
-  </component>
-</project>

.woodpecker/build.yaml

@@ -0,0 +1,32 @@
+steps:
+  - name: publish_image
+    image: woodpeckerci/plugin-docker-buildx
+    settings:
+      repo: git.gnous.eu/${CI_REPO_OWNER}/plakken
+      dockerfile: docker/Dockerfile
+      platforms: linux/amd64,linux/arm64/v8,linux/arm
+      registry: https://git.gnous.eu
+      tag: ${CI_COMMIT}
+      username:
+          from_secret: docker_username
+      password:
+        from_secret: docker_password
+    when:
+      branch: ${CI_REPO_DEFAULT_BRANCH}
+      event: push
+  - name: publish_image_tag
+    image: woodpeckerci/plugin-docker-buildx
+    settings:
+      repo: git.gnous.eu/${CI_REPO_OWNER}/plakken
+      dockerfile: docker/Dockerfile
+      platforms: linux/amd64,linux/arm64/v8,linux/arm
+      registry: https://git.gnous.eu
+      tags:
+        - ${CI_COMMIT_TAG##v} # Remove v from tag
+        - stable
+      username:
+        from_secret: docker_username
+      password:
+        from_secret: docker_password
+    when:
+      event: tag

.woodpecker/lint.yml

@@ -0,0 +1,11 @@
+steps:
+  lint:
+    image: golang:1.22
+    commands:
+      - go install github.com/golangci/golangci-lint/cmd/golangci-lint@latest
+      - golangci-lint run
+    when:
+      - event: pull_request
+        repo: gnouseu/plakken
+      - event: push
+        branch: main

.woodpecker/release.yaml

@@ -0,0 +1,24 @@
+steps:
+  - name: Build
+    image: golang:1.22
+    commands:
+      - go mod download
+      - CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -ldflags "-w -s" -o plakken-linux-amd64 # Enable static binary, target Linux, remove debug information and strip binary
+      - CGO_ENABLED=0 GOOS=linux GOARCH=arm64 go build -ldflags "-w -s" -o plakken-linux-arm64
+      - CGO_ENABLED=0 GOOS=linux GOARCH=arm go build -ldflags "-w -s" -o plakken-linux-arm
+      - CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -ldflags "-w -s" -o plakken-windows-amd64.exe
+      - CGO_ENABLED=0 GOOS=linux GOARCH=arm64 go build -ldflags "-w -s" -o plakken-windows-arm64.exe
+      - CGO_ENABLED=0 GOOS=linux GOARCH=arm go build -ldflags "-w -s" -o plakken-windows-arm.exe
+    when:
+      event: tag
+  - name: Release
+    image: woodpeckerci/plugin-gitea-release
+    settings:
+      base_url: https://git.gnous.eu
+      files:
+        - "plakken*"
+      api_key:
+        from_secret: release_token
+      target: main
+    when:
+      event: tag

LICENSE

@@ -0,0 +1,235 @@
+GNU AFFERO GENERAL PUBLIC LICENSE
+Version 3, 19 November 2007
+
+Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
+
+Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it is not allowed.
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+Notwithstanding any other provision of this License, if you modify the Program, your modified version must prominently offer all users interacting with it remotely through a computer network (if your version supports such interaction) an opportunity to receive the Corresponding Source of your version by providing access to the Corresponding Source from a network server at no charge, through some standard or customary means of facilitating copying of software.  This Corresponding Source shall include the Corresponding Source for any work covered by version 3 of the GNU General Public License that is incorporated pursuant to the following paragraph.
+
+Notwithstanding any other provision of this License, you have permission to link or combine any covered work with a work licensed under version 3 of the GNU General Public License into a single combined work, and to convey the resulting work.  The terms of this License will continue to apply to the part which is the covered work, but the work with which it is combined will remain governed by version 3 of the GNU General Public License.
+
+14. Revised Versions of this License.
+
+The Free Software Foundation may publish revised and/or new versions of the GNU Affero General Public License from time to time.  Such new versions will be similar in spirit to the present version, but may differ in detail to address new problems or concerns.
+
+Each version is given a distinguishing version number.  If the Program specifies that a certain numbered version of the GNU Affero General Public License "or any later version" applies to it, you have the option of following the terms and conditions either of that numbered version or of any later version published by the Free Software Foundation.  If the Program does not specify a version number of the GNU Affero General Public License, you may choose any version ever published by the Free Software Foundation.
+
+If the Program specifies that a proxy can decide which future versions of the GNU Affero General Public License can be used, that proxy's public statement of acceptance of a version permanently authorizes you to choose that version for the Program.
+
+Later license versions may give you additional or different permissions.  However, no additional obligations are imposed on any author or copyright holder as a result of your choosing to follow a later version.
+
+15. Disclaimer of Warranty.
+
+THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+16. Limitation of Liability.
+
+IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
+
+17. Interpretation of Sections 15 and 16.
+
+If the disclaimer of warranty and limitation of liability provided above cannot be given local legal effect according to their terms, reviewing courts shall apply local law that most closely approximates an absolute waiver of all civil liability in connection with the Program, unless a warranty or assumption of liability accompanies a copy of the Program in return for a fee.
+
+END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+If you develop a new program, and you want it to be of the greatest possible use to the public, the best way to achieve this is to make it free software which everyone can redistribute and change under these terms.
+
+To do so, attach the following notices to the program.  It is safest to attach them to the start of each source file to most effectively state the exclusion of warranty; and each file should have at least the "copyright" line and a pointer to where the full notice is found.
+
+     ds
+     Copyright (C) 2024  GnousEU
+
+     This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
+
+     This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details.
+
+     You should have received a copy of the GNU Affero General Public License along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+If your software can interact with users remotely through a computer network, you should also make sure that it provides a way for users to get its source.  For example, if your program is a web application, its interface could display a "Source" link that leads users to an archive of the code.  There are many ways you could offer source, and different solutions will be better for different programs; see section 13 for the specific requirements.
+
+You should also get your employer (if you work as a programmer) or school, if any, to sign a "copyright disclaimer" for the program, if necessary. For more information on this, and how to apply and follow the GNU AGPL, see <http://www.gnu.org/licenses/>.

config.go

@@ -1,56 +0,0 @@
-package main
-
-import (
-	"github.com/joho/godotenv"
-	"log"
-	"os"
-	"strconv"
-)
-
-type config struct {
-	host          string
-	port          string
-	redisAddr     string
-	redisUser     string
-	redisPassword string
-	redisDB       int
-	urlLength     int
-}
-
-func getConfig() config {
-	err := godotenv.Load()
-	if err != nil {
-		log.Fatalf("Error loading .env file: %v", err)
-	}
-
-	port := os.Getenv("PLAKKEN_PORT")
-	redisAddr := os.Getenv("PLAKKEN_REDIS_ADDR")
-	db := os.Getenv("PLAKKEN_REDIS_DB")
-	uLen := os.Getenv("PLAKKEN_REDIS_URL_LEN")
-
-	if port == "" || redisAddr == "" {
-		log.Fatal("Missing or invalid PLAKKEN_PORT or PLAKKEN_REDIS_ADDR")
-	}
-
-	redisDB, err := strconv.Atoi(db)
-	if err != nil {
-		log.Fatal("Invalid PLAKKEN_REDIS_DB")
-	}
-
-	urlLen, err := strconv.Atoi(uLen)
-	if err != nil {
-		log.Fatal("Invalid PLAKKEN_REDIS_URL_LEN")
-	}
-
-	conf := config{
-		host:          os.Getenv("PLAKKEN_INTERFACE"),
-		port:          port,
-		redisAddr:     redisAddr,
-		redisUser:     os.Getenv("PLAKKEN_REDIS_USER"),
-		redisPassword: os.Getenv("PLAKKEN_REDIS_PASSWORD"),
-		redisDB:       redisDB,
-		urlLength:     urlLen,
-	}
-
-	return conf
-}

db.go

@@ -1,52 +0,0 @@
-package main
-
-import (
-	"context"
-	"github.com/redis/go-redis/v9"
-	"log"
-	"time"
-)
-
-var ctx = context.Background()
-
-func connectDB() *redis.Client {
-	localDb := redis.NewClient(&redis.Options{
-		Addr:     currentConfig.redisAddr,
-		Username: currentConfig.redisUser,
-		Password: currentConfig.redisPassword,
-		DB:       currentConfig.redisDB,
-	})
-	return localDb
-}
-
-func insertPaste(key string, content string, secret string, ttl time.Duration) {
-	type dbSchema struct {
-		content string
-		secret  string
-	}
-
-	hash := dbSchema{
-		content: content,
-		secret:  secret,
-	}
-	err := db.HSet(ctx, key, "content", hash.content)
-	if err != nil {
-		log.Println(err)
-	}
-	err = db.HSet(ctx, key, "secret", hash.secret)
-	if ttl > -1 {
-		db.Do(ctx, key, ttl)
-	}
-}
-
-func getContent(key string) string {
-	content := db.HGet(ctx, key, "content").Val()
-	return content
-}
-
-func deleteContent(key string) {
-	err := db.Del(ctx, key)
-	if err != nil {
-		log.Println(err)
-	}
-}

docker/Dockerfile

@@ -0,0 +1,28 @@
+# Build
+FROM golang:1.22 AS build
+LABEL authors="gnousEU"
+
+WORKDIR /build
+
+COPY go.mod go.sum ./
+RUN go mod download
+
+COPY main.go ./
+COPY internal/ ./internal
+COPY static/ ./static
+COPY templates/ ./templates
+
+RUN CGO_ENABLED=0 GOOS=linux go build -ldflags "-w -s" # Enable static binary, target Linux, remove debug information and strip binary
+
+# Copy to our image
+FROM gcr.io/distroless/static-debian12:nonroot
+
+WORKDIR /app
+
+COPY --from=build /build/plakken ./
+
+ENV PLAKKEN_LISTEN ":3000"
+
+EXPOSE 3000/tcp
+
+ENTRYPOINT ["/app/plakken"]

docker/docker-compose.dev.yaml

@@ -0,0 +1,31 @@
+version: "3"
+
+networks:
+  plakken:
+    external: false
+
+services:
+  server:
+    build:
+      context: ../
+      dockerfile: docker/Dockerfile
+    restart: always
+    container_name: plakken
+    networks:
+      - plakken
+    ports:
+      - "3000:3000"
+    environment:
+      - PLAKKEN_REDIS_ADDRESS=redis:6379
+      - POSTGRES_PASSWORD=gitea
+      - PLAKKEN_REDIS_DB=0
+      - PLAKKEN_URL_LENGTH=5
+    depends_on:
+      - redis
+  redis:
+    image: redis:7-alpine
+    restart: always
+    healthcheck:
+      test: [ "CMD", "redis-cli", "ping" ]
+    networks:
+      - plakken

docker/docker-compose.yaml

@@ -0,0 +1,36 @@
+version: "3"
+
+networks:
+  plakken:
+    external: false
+
+volumes:
+  redis:
+    driver: local
+
+services:
+  server:
+    image: git.gnous.eu/gnouseu/plakken:latest
+    restart: always
+    container_name: plakken
+    read_only: true
+    networks:
+      - plakken
+    ports:
+      - "3000:3000"
+    environment:
+      - PLAKKEN_REDIS_ADDRESS=redis:6379
+      - POSTGRES_PASSWORD=gitea
+      - PLAKKEN_REDIS_DB=0
+      - PLAKKEN_URL_LENGTH=5
+    depends_on:
+      - redis
+  redis:
+    image: redis:7-alpine
+    restart: always
+    healthcheck:
+      test: [ "CMD", "redis-cli", "ping" ]
+    networks:
+      - plakken
+    volumes:
+      - redis:/data

go.mod

@@ -1,13 +1,14 @@
-module plakken
+module git.gnous.eu/gnouseu/plakken
 
-go 1.21
+go 1.22
 
 require (
-	github.com/joho/godotenv v1.5.1
-	github.com/redis/go-redis/v9 v9.2.1
+	github.com/redis/go-redis/v9 v9.5.1
+	golang.org/x/crypto v0.22.0
 )
 
 require (
-	github.com/cespare/xxhash/v2 v2.2.0 // indirect
+	github.com/cespare/xxhash/v2 v2.3.0 // indirect
 	github.com/dgryski/go-rendezvous v0.0.0-20200823014737-9f7001d12a5f // indirect
+	golang.org/x/sys v0.19.0 // indirect
 )

go.sum

@@ -1,8 +1,14 @@
-github.com/cespare/xxhash/v2 v2.2.0 h1:DC2CZ1Ep5Y4k3ZQ899DldepgrayRUGE6BBZ/cd9Cj44=
-github.com/cespare/xxhash/v2 v2.2.0/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
+github.com/bsm/ginkgo/v2 v2.12.0 h1:Ny8MWAHyOepLGlLKYmXG4IEkioBysk6GpaRTLC8zwWs=
+github.com/bsm/ginkgo/v2 v2.12.0/go.mod h1:SwYbGRRDovPVboqFv0tPTcG1sN61LM1Z4ARdbAV9g4c=
+github.com/bsm/gomega v1.27.10 h1:yeMWxP2pV2fG3FgAODIY8EiRE3dy0aeFYt4l7wh6yKA=
+github.com/bsm/gomega v1.27.10/go.mod h1:JyEr/xRbxbtgWNi8tIEVPUYZ5Dzef52k01W3YH0H+O0=
+github.com/cespare/xxhash/v2 v2.3.0 h1:UL815xU9SqsFlibzuggzjXhog7bL6oX9BbNZnL2UFvs=
+github.com/cespare/xxhash/v2 v2.3.0/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
 github.com/dgryski/go-rendezvous v0.0.0-20200823014737-9f7001d12a5f h1:lO4WD4F/rVNCu3HqELle0jiPLLBs70cWOduZpkS1E78=
 github.com/dgryski/go-rendezvous v0.0.0-20200823014737-9f7001d12a5f/go.mod h1:cuUVRXasLTGF7a8hSLbxyZXjz+1KgoB3wDUb6vlszIc=
-github.com/joho/godotenv v1.5.1 h1:7eLL/+HRGLY0ldzfGMeQkb7vMd0as4CfYvUVzLqw0N0=
-github.com/joho/godotenv v1.5.1/go.mod h1:f4LDr5Voq0i2e/R5DDNOoa2zzDfwtkZa6DnEwAbqwq4=
-github.com/redis/go-redis/v9 v9.2.1 h1:WlYJg71ODF0dVspZZCpYmoF1+U1Jjk9Rwd7pq6QmlCg=
-github.com/redis/go-redis/v9 v9.2.1/go.mod h1:hdY0cQFCN4fnSYT6TkisLufl/4W5UIXyv0b/CLO2V2M=
+github.com/redis/go-redis/v9 v9.5.1 h1:H1X4D3yHPaYrkL5X06Wh6xNVM/pX0Ft4RV0vMGvLBh8=
+github.com/redis/go-redis/v9 v9.5.1/go.mod h1:hdY0cQFCN4fnSYT6TkisLufl/4W5UIXyv0b/CLO2V2M=
+golang.org/x/crypto v0.22.0 h1:g1v0xeRhjcugydODzvb3mEM9SQ0HGp9s/nh3COQ/C30=
+golang.org/x/crypto v0.22.0/go.mod h1:vr6Su+7cTlO45qkww3VDJlzDn0ctJvRgYbC2NvXHt+M=
+golang.org/x/sys v0.19.0 h1:q5f1RH2jigJ1MoAWp2KTp3gm5zAGFUTarQZ5U386+4o=
+golang.org/x/sys v0.19.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=

internal/config/config.go

@@ -0,0 +1,54 @@
+package config
+
+import (
+	"log"
+	"os"
+	"strconv"
+
+	"git.gnous.eu/gnouseu/plakken/internal/constant"
+)
+
+// InitConfig Structure for program initialisation.
+type InitConfig struct {
+	ListenAddress string
+	RedisAddress  string
+	RedisUser     string
+	RedisPassword string
+	RedisDB       int
+	URLLength     uint8
+}
+
+// GetConfig Initialise configuration form .env.
+func GetConfig() InitConfig {
+	listenAddress := os.Getenv("PLAKKEN_LISTEN")
+	redisAddress := os.Getenv("PLAKKEN_REDIS_ADDRESS")
+	db := os.Getenv("PLAKKEN_REDIS_DB")
+	uLen := os.Getenv("PLAKKEN_URL_LENGTH")
+
+	if listenAddress == "" || redisAddress == "" {
+		log.Fatal("Missing or invalid listenAddress or PLAKKEN_REDIS_ADDRESS")
+	}
+
+	redisDB, err := strconv.Atoi(db)
+	if err != nil {
+		log.Fatal("Invalid PLAKKEN_REDIS_DB")
+	}
+
+	urlLength, err := strconv.Atoi(uLen)
+	if err != nil {
+		log.Fatal("Invalid PLAKKEN_URL_LENGTH")
+	}
+
+	if urlLength > constant.MaxURLLength {
+		log.Fatal("PLAKKEN_URL_LENGTH cannot be greater than 255")
+	}
+
+	return InitConfig{
+		ListenAddress: listenAddress,
+		RedisAddress:  redisAddress,
+		RedisUser:     os.Getenv("PLAKKEN_REDIS_USER"),
+		RedisPassword: os.Getenv("PLAKKEN_REDIS_PASSWORD"),
+		RedisDB:       redisDB,
+		URLLength:     uint8(urlLength),
+	}
+}

internal/constant/constants.go

@@ -0,0 +1,18 @@
+package constant
+
+import "time"
+
+const (
+	HTTPTimeout          = 3 * time.Second
+	ExpirationCurlCreate = 604800 * time.Second // Second in one week
+	TokenLength          = 32
+	ArgonSaltSize        = 16
+	ArgonMemory          = 64 * 1024
+	ArgonThreads         = 4
+	ArgonKeyLength       = 32
+	ArgonIterations      = 2
+	MaxURLLength         = 255
+	SecondsInDay         = 86400
+	SecondsInHour        = 3600
+	SecondsInMinute      = 60
+)

internal/database/db.go

@@ -0,0 +1,83 @@
+package database
+
+import (
+	"context"
+	"log"
+	"time"
+
+	"git.gnous.eu/gnouseu/plakken/internal/secret"
+	"github.com/redis/go-redis/v9"
+)
+
+type DBConfig struct {
+	DB *redis.Client
+}
+
+var ctx = context.Background() //nolint:gochecknoglobals
+
+// InitDB initialise redis connection settings.
+func InitDB(addr string, user string, password string, db int) *redis.Options {
+	DBConfig := &redis.Options{
+		Addr:     addr,
+		Username: user,
+		Password: password,
+		DB:       db,
+	}
+
+	return DBConfig
+}
+
+// ConnectDB make new database connection.
+func ConnectDB(dbConfig *redis.Options) *redis.Client {
+	localDB := redis.NewClient(dbConfig)
+
+	return localDB
+}
+
+// Ping test connection to Redis database.
+func Ping(db *redis.Client) error {
+	status := db.Ping(ctx)
+	if status.String() != "ping: PONG" {
+		return &pingError{}
+	}
+
+	return nil
+}
+
+func (config DBConfig) InsertPaste(key string, content string, secret string, ttl time.Duration) {
+	type dbSchema struct {
+		content string
+		secret  string
+	}
+
+	hash := dbSchema{
+		content: content,
+		secret:  secret,
+	}
+	err := config.DB.HSet(ctx, key, "content", hash.content).Err()
+	if err != nil {
+		log.Println(err)
+	}
+	err = config.DB.HSet(ctx, key, "secret", hash.secret).Err()
+	if err != nil {
+		log.Println(err)
+	}
+	if ttl > -1 {
+		config.DB.Expire(ctx, key, ttl)
+	}
+}
+
+func (config DBConfig) URLExist(url string) bool {
+	return config.DB.Exists(ctx, url).Val() == 1
+}
+
+func (config DBConfig) VerifySecret(url string, token string) (bool, error) {
+	storedHash := config.DB.HGet(ctx, url, "secret").Val()
+
+	result, err := secret.VerifyPassword(token, storedHash)
+	if err != nil {
+		return false, err
+	}
+
+	return result, nil
+}

internal/database/error.go

@@ -0,0 +1,7 @@
+package database
+
+type pingError struct{}
+
+func (m *pingError) Error() string {
+	return "Connection to redis not work"
+}

internal/httpserver/server.go

@@ -0,0 +1,67 @@
+package httpserver
+
+import (
+	"embed"
+	"log"
+	"net/http"
+
+	"git.gnous.eu/gnouseu/plakken/internal/constant"
+	"git.gnous.eu/gnouseu/plakken/internal/web/plak"
+	"github.com/redis/go-redis/v9"
+)
+
+type ServerConfig struct {
+	HTTPServer *http.Server
+	URLLength  uint8
+	DB         *redis.Client
+	Static     embed.FS
+	Templates  embed.FS
+}
+
+func (config ServerConfig) home(w http.ResponseWriter, _ *http.Request) {
+	index, err := config.Static.ReadFile("static/index.html")
+	if err != nil {
+		log.Println(err)
+	}
+	_, err = w.Write(index)
+	if err != nil {
+		log.Println(err)
+	}
+}
+
+// Configure HTTP router.
+func (config ServerConfig) router() {
+	WebConfig := plak.WebConfig{
+		DB:        config.DB,
+		URLLength: config.URLLength,
+		Templates: config.Templates,
+	}
+	staticFiles := http.FS(config.Static)
+
+	http.HandleFunc("GET /{$}", config.home)
+	http.Handle("GET /static/{file}", http.FileServer(staticFiles))
+	http.HandleFunc("GET /{key}/{settings...}", WebConfig.View)
+	http.HandleFunc("POST /{$}", WebConfig.CurlCreate)
+	http.HandleFunc("POST /create/{$}", WebConfig.PostCreate)
+	http.HandleFunc("DELETE /{key}", WebConfig.DeleteRequest)
+}
+
+// Config Configure HTTP server.
+func Config(listenAddress string) *http.Server {
+	server := &http.Server{
+		Addr:         listenAddress,
+		ReadTimeout:  constant.HTTPTimeout,
+		WriteTimeout: constant.HTTPTimeout,
+	}
+
+	return server
+}
+
+// Server Start HTTP server.
+func (config ServerConfig) Server() {
+	log.Println("Listening on " + config.HTTPServer.Addr)
+
+	config.router()
+
+	log.Fatal(config.HTTPServer.ListenAndServe())
+}

internal/secret/crypto.go

@@ -0,0 +1,161 @@
+// Package secret implement all crypto utils like password hashing and secret generation
+package secret
+
+import (
+	"bytes"
+	"crypto/rand"
+	"encoding/base64"
+	"encoding/hex"
+	"fmt"
+	"strconv"
+	"strings"
+
+	"git.gnous.eu/gnouseu/plakken/internal/constant"
+	"golang.org/x/crypto/argon2"
+)
+
+type argon2idHash struct {
+	salt []byte
+	hash []byte
+}
+
+// Argon2id config.
+type config struct {
+	saltLength uint8
+	memory     uint32
+	threads    uint8
+	keyLength  uint32
+	iterations uint32
+}
+
+// generateSecret for password hashing or token generation.
+func generateSecret(length uint8) ([]byte, error) {
+	secret := make([]byte, length)
+
+	_, err := rand.Read(secret)
+	if err != nil {
+		return nil, err
+	}
+
+	return secret, err
+}
+
+// GenerateToken generate hexadecimal token.
+func GenerateToken() (string, error) {
+	secret, err := generateSecret(constant.TokenLength)
+	if err != nil {
+		return "", err
+	}
+
+	token := hex.EncodeToString(secret)
+
+	return token, nil
+}
+
+// generateArgon2ID Generate an argon2id hash from source string and specified salt.
+func (config config) generateArgon2ID(source string, salt []byte) []byte {
+	hash := argon2.IDKey([]byte(source), salt, config.iterations, config.memory, config.threads, config.keyLength)
+
+	return hash
+}
+
+// Password hash a source string with argon2id, return properly encoded hash.
+func Password(password string) (string, error) {
+	config := config{
+		saltLength: constant.ArgonSaltSize,
+		memory:     constant.ArgonMemory,
+		threads:    constant.ArgonThreads,
+		keyLength:  constant.ArgonKeyLength,
+		iterations: constant.ArgonIterations,
+	}
+
+	salt, err := generateSecret(config.saltLength)
+	if err != nil {
+		return "", err
+	}
+
+	hash := config.generateArgon2ID(password, salt)
+
+	base64Hash := base64.RawStdEncoding.EncodeToString(hash)
+	base64Salt := base64.RawStdEncoding.EncodeToString(salt)
+
+	formatted := fmt.Sprintf("$argon2id$v=%d$m=%d,t=%d,p=%d$%s$%s", argon2.Version, config.memory, config.iterations, config.threads, base64Salt, base64Hash)
+
+	return formatted, nil
+}
+
+// VerifyPassword check is source password and stored password is similar, take password and a properly encoded hash.
+func VerifyPassword(password string, hash string) (bool, error) {
+	argon2Hash, config, err := parseHash(hash)
+	if err != nil {
+		return false, err
+	}
+
+	result := config.generateArgon2ID(password, argon2Hash.salt)
+
+	return bytes.Equal(result, argon2Hash.hash), nil
+}
+
+// parseHash parse existing encoded argon2id string.
+func parseHash(source string) (argon2idHash, config, error) {
+	separateItem := strings.Split(source, "$")
+	if len(separateItem) != 6 { //nolint:gomnd
+		return argon2idHash{}, config{}, &parseError{message: "Hash format is not valid"}
+	}
+
+	if separateItem[1] != "argon2id" {
+		return argon2idHash{}, config{}, &parseError{message: "Algorithm is not valid"}
+	}
+
+	separateParam := strings.Split(separateItem[3], ",")
+	if len(separateParam) != 3 { //nolint:gomnd
+		return argon2idHash{}, config{}, &parseError{message: "Hash config is not valid"}
+	}
+
+	salt, err := base64.RawStdEncoding.Strict().DecodeString(separateItem[4])
+	if err != nil {
+		return argon2idHash{}, config{}, err
+	}
+
+	var hash []byte
+	hash, err = base64.RawStdEncoding.Strict().DecodeString(separateItem[5])
+	if err != nil {
+		return argon2idHash{}, config{}, err
+	}
+
+	saltLength := uint8(len(salt))
+	keyLength := uint32(len(hash))
+
+	var memory int
+	memory, err = strconv.Atoi(strings.ReplaceAll(separateParam[0], "m=", ""))
+	if err != nil {
+		return argon2idHash{}, config{}, err
+	}
+
+	var iterations int
+	iterations, err = strconv.Atoi(strings.ReplaceAll(separateParam[1], "t=", ""))
+	if err != nil {
+		return argon2idHash{}, config{}, err
+	}
+
+	var threads int
+	threads, err = strconv.Atoi(strings.ReplaceAll(separateParam[2], "p=", ""))
+	if err != nil {
+		return argon2idHash{}, config{}, err
+	}
+
+	argon2idStruct := argon2idHash{
+		salt: salt,
+		hash: hash,
+	}
+
+	hashConfig := config{
+		saltLength: saltLength,
+		memory:     uint32(memory),
+		threads:    uint8(threads),
+		iterations: uint32(iterations),
+		keyLength:  keyLength,
+	}
+
+	return argon2idStruct, hashConfig, nil
+}

internal/secret/error.go

@@ -0,0 +1,9 @@
+package secret
+
+type parseError struct {
+	message string
+}
+
+func (m *parseError) Error() string {
+	return "parseHash: " + m.message
+}

internal/utils/error.go

@@ -0,0 +1,17 @@
+package utils
+
+type parseIntBeforeSeparatorError struct {
+	message string
+}
+
+func (m *parseIntBeforeSeparatorError) Error() string {
+	return "parseIntBeforeSeparator: " + m.message
+}
+
+type ParseExpirationError struct {
+	message string
+}
+
+func (m *ParseExpirationError) Error() string {
+	return "parseIntBeforeSeparator: " + m.message
+}

internal/utils/utils.go

@@ -0,0 +1,108 @@
+package utils
+
+import (
+	"log"
+	mathrand "math/rand/v2"
+	"regexp"
+	"strconv"
+	"strings"
+
+	"git.gnous.eu/gnouseu/plakken/internal/constant"
+)
+
+// GenerateURL generate random string for plak url.
+func GenerateURL(length uint8) string {
+	listChars := []rune("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789")
+	b := make([]rune, length)
+	for i := range b {
+		b[i] = listChars[mathrand.IntN(len(listChars))]
+	}
+
+	return string(b)
+}
+
+// CheckCharRedundant  verify is a character is redundant in a string.
+func CheckCharRedundant(source string, char string) bool { // Verify if a char is redundant
+	return strings.Count(source, char) > 1
+}
+
+func parseIntBeforeSeparator(source *string, sep string) (int, error) { // return 0 & error if error, only accept positive number
+	if CheckCharRedundant(*source, sep) {
+		return 0, &parseIntBeforeSeparatorError{message: *source + ": cannot parse value as int"}
+	}
+	var value int
+	var err error
+	if strings.Contains(*source, sep) {
+		value, err = strconv.Atoi(strings.Split(*source, sep)[0])
+		if err != nil {
+			log.Println(err)
+
+			return 0, &parseIntBeforeSeparatorError{message: *source + ": cannot parse value as int"}
+		}
+		if value < 0 { // Only positive value is correct
+			return 0, &parseIntBeforeSeparatorError{message: *source + ": format only take positive value"}
+		}
+
+		if value > 99 { //nolint:gomnd
+			return 0, &parseIntBeforeSeparatorError{message: *source + ": Format only take two number"}
+		}
+
+		*source = strings.Join(strings.Split(*source, sep)[1:], "")
+	}
+
+	return value, nil
+}
+
+// ParseExpiration Parse "1d1h1m1s" duration format. Return 0 & error if error.
+func ParseExpiration(source string) (int, error) {
+	var expiration int
+	var tempOutput int
+	var err error
+	if source == "0" {
+		return 0, nil
+	}
+
+	source = strings.ToLower(source)
+
+	tempOutput, err = parseIntBeforeSeparator(&source, "d")
+	expiration = tempOutput * constant.SecondsInDay
+	if err != nil {
+		log.Println(err)
+
+		return 0, &ParseExpirationError{message: "Invalid syntax"}
+	}
+	tempOutput, err = parseIntBeforeSeparator(&source, "h")
+	expiration += tempOutput * constant.SecondsInHour
+	if err != nil {
+		log.Println(err)
+
+		return 0, &ParseExpirationError{message: "Invalid syntax"}
+	}
+	tempOutput, err = parseIntBeforeSeparator(&source, "m")
+	expiration += tempOutput * constant.SecondsInMinute
+	if err != nil {
+		log.Println(err)
+
+		return 0, &ParseExpirationError{message: "Invalid syntax"}
+	}
+	tempOutput, err = parseIntBeforeSeparator(&source, "s")
+	expiration += tempOutput * 1
+	if err != nil {
+		log.Println(err)
+
+		return 0, &ParseExpirationError{message: "Invalid syntax"}
+	}
+
+	return expiration, nil
+}
+
+// ValidKey Verify if a key is valid (only letter, number, - and _).
+func ValidKey(key string) bool {
+	result, err := regexp.MatchString("^[a-zA-Z0-9_.-]*$", key)
+	if err != nil {
+		return false
+	}
+	log.Println(key, result)
+
+	return result
+}

internal/web/plak/error.go

@@ -0,0 +1,18 @@
+package plak
+
+type deletePlakError struct {
+	name string
+	err  error
+}
+
+func (m *deletePlakError) Error() string {
+	return "Cannot delete: " + m.name + " : " + m.err.Error()
+}
+
+type createError struct {
+	message string
+}
+
+func (m *createError) Error() string {
+	return "create: cannot create plak: " + m.message
+}

internal/web/plak/plak.go

@@ -0,0 +1,261 @@
+package plak
+
+import (
+	"context"
+	"embed"
+	"html/template"
+	"io"
+	"log"
+	"net/http"
+	"time"
+
+	"git.gnous.eu/gnouseu/plakken/internal/constant"
+	"git.gnous.eu/gnouseu/plakken/internal/database"
+	"git.gnous.eu/gnouseu/plakken/internal/secret"
+	"git.gnous.eu/gnouseu/plakken/internal/utils"
+	"github.com/redis/go-redis/v9"
+)
+
+var ctx = context.Background() //nolint:gochecknoglobals
+
+type WebConfig struct {
+	DB        *redis.Client
+	URLLength uint8
+	Templates embed.FS
+}
+
+// plak "Object" for plak.
+type plak struct {
+	Key        string
+	Content    string
+	Expiration time.Duration
+	DB         *redis.Client
+}
+
+// create a plak.
+func (plak plak) create() (string, error) {
+	dbConf := database.DBConfig{
+		DB: plak.DB,
+	}
+
+	token, err := secret.GenerateToken()
+	if err != nil {
+		return "", err
+	}
+
+	if dbConf.URLExist(plak.Key) {
+		return "", &createError{message: "key already exist"}
+	}
+
+	var hashedSecret string
+	hashedSecret, err = secret.Password(token)
+	if err != nil {
+		return "", err
+	}
+
+	dbConf.InsertPaste(plak.Key, plak.Content, hashedSecret, plak.Expiration)
+
+	return token, nil
+}
+
+// PostCreate manage POST request for create plak.
+func (config WebConfig) PostCreate(w http.ResponseWriter, r *http.Request) {
+	content := r.FormValue("content")
+	if content == "" {
+		w.WriteHeader(http.StatusBadRequest)
+
+		return
+	}
+
+	filename := r.FormValue("filename")
+	var key string
+	if len(filename) == 0 {
+		key = utils.GenerateURL(config.URLLength)
+	} else {
+		if !utils.ValidKey(filename) {
+			w.WriteHeader(http.StatusBadRequest)
+
+			return
+		}
+		key = filename
+	}
+
+	plak := plak{
+		Key:     key,
+		Content: content,
+		DB:      config.DB,
+	}
+
+	rawExpiration := r.FormValue("exp")
+	expiration, err := utils.ParseExpiration(rawExpiration)
+	if err != nil {
+		log.Println(err)
+		w.WriteHeader(http.StatusInternalServerError)
+
+		return
+	}
+
+	if expiration == 0 {
+		plak.Expiration = -1
+	} else {
+		plak.Expiration = time.Duration(expiration * int(time.Second))
+	}
+
+	_, err = plak.create()
+	if err != nil {
+		log.Println(err)
+		w.WriteHeader(http.StatusInternalServerError)
+
+		return
+	}
+
+	http.Redirect(w, r, "/"+key, http.StatusSeeOther)
+}
+
+// CurlCreate PostCreate plak with minimum param, ideal for curl. Force 7 day expiration.
+func (config WebConfig) CurlCreate(w http.ResponseWriter, r *http.Request) {
+	if r.ContentLength == 0 {
+		w.WriteHeader(http.StatusBadRequest)
+
+		return
+	}
+
+	content, _ := io.ReadAll(r.Body)
+	err := r.Body.Close()
+	if err != nil {
+		log.Println(err)
+	}
+
+	key := utils.GenerateURL(config.URLLength)
+
+	plak := plak{
+		Key:        key,
+		Content:    string(content),
+		Expiration: constant.ExpirationCurlCreate,
+		DB:         config.DB,
+	}
+
+	var token string
+	token, err = plak.create()
+	if err != nil {
+		w.WriteHeader(http.StatusBadRequest)
+
+		return
+	}
+
+	var baseURL string
+	if r.TLS == nil {
+		baseURL = "http://" + r.Host + "/" + key
+	} else {
+		baseURL = "https://" + r.Host + "/" + key
+	}
+
+	message := baseURL + "\n" + "Delete with : 'curl -X DELETE " + baseURL + "?secret\\=" + token + "'" + "\n"
+
+	w.Header().Set("Content-Type", "text/plain; charset=utf-8")
+	_, err = io.WriteString(w, message)
+	if err != nil {
+		log.Println(err)
+	}
+}
+
+// View for plak.
+func (config WebConfig) View(w http.ResponseWriter, r *http.Request) {
+	dbConf := database.DBConfig{
+		DB: config.DB,
+	}
+	var currentPlak plak
+	key := r.PathValue("key")
+
+	//nolint:nestif
+	if dbConf.URLExist(key) {
+		currentPlak = plak{
+			Key: key,
+			DB:  config.DB,
+		}
+		currentPlak = currentPlak.getContent()
+		if r.PathValue("settings") == "raw" {
+			w.Header().Set("Content-Type", "text/plain; charset=utf-8")
+			_, err := io.WriteString(w, currentPlak.Content)
+			if err != nil {
+				log.Println(err)
+			}
+		} else {
+			t, err := template.ParseFS(config.Templates, "templates/paste.html")
+			if err != nil {
+				w.WriteHeader(http.StatusInternalServerError)
+				log.Println(err)
+
+				return
+			}
+			err = t.Execute(w, currentPlak)
+			if err != nil {
+				w.WriteHeader(http.StatusInternalServerError)
+				log.Println(err)
+
+				return
+			}
+		}
+	} else {
+		w.WriteHeader(http.StatusNotFound)
+	}
+}
+
+// DeleteRequest manage plak deletion endpoint.
+func (config WebConfig) DeleteRequest(w http.ResponseWriter, r *http.Request) {
+	dbConf := database.DBConfig{
+		DB: config.DB,
+	}
+	key := r.PathValue("key")
+	var valid bool
+
+	//nolint:nestif
+	if dbConf.URLExist(key) {
+		var err error
+		token := r.URL.Query().Get("secret")
+
+		valid, err = dbConf.VerifySecret(key, token)
+		if err != nil {
+			w.WriteHeader(http.StatusInternalServerError)
+			log.Println(err)
+		}
+
+		if valid {
+			plak := plak{
+				Key: key,
+				DB:  config.DB,
+			}
+			err := plak.delete()
+			if err != nil {
+				log.Println(err)
+			}
+
+			w.WriteHeader(http.StatusNoContent)
+		} else {
+			w.WriteHeader(http.StatusForbidden)
+		}
+
+		return
+	}
+
+	w.WriteHeader(http.StatusNotFound)
+}
+
+// delete DeleteRequest plak from database.
+func (plak plak) delete() error {
+	err := plak.DB.Del(ctx, plak.Key).Err()
+	if err != nil {
+		log.Println(err)
+
+		return &deletePlakError{name: plak.Key, err: err}
+	}
+
+	return nil
+}
+
+// getContent get plak content.
+func (plak plak) getContent() plak {
+	plak.Content = plak.DB.HGet(ctx, plak.Key, "content").Val()
+
+	return plak
+}

main.go

@@ -1,103 +1,37 @@
 package main
 
 import (
-	"fmt"
-	"github.com/redis/go-redis/v9"
-	"html/template"
-	"io"
+	"embed"
 	"log"
-	"net/http"
-	"strings"
+
+	"git.gnous.eu/gnouseu/plakken/internal/config"
+	"git.gnous.eu/gnouseu/plakken/internal/database"
+	"git.gnous.eu/gnouseu/plakken/internal/httpserver"
 )
 
-var currentConfig config
-var db *redis.Client
-
-type pasteView struct {
-	Content string
-	Key     string
-}
-
-func handleRequest(w http.ResponseWriter, r *http.Request) {
-	path := r.URL.Path
-	clearPath := strings.ReplaceAll(r.URL.Path, "/raw", "")
-	switch r.Method {
-	case "GET":
-		if path == "/" {
-			http.ServeFile(w, r, "./static/index.html")
-
-		} else if strings.HasPrefix(path, "/static/") {
-			fs := http.FileServer(http.Dir("./static"))
-			http.Handle("/static/", http.StripPrefix("/static/", fs))
-		} else {
-			if urlExist(clearPath) {
-				if strings.HasSuffix(path, "/raw") {
-					pasteContent := getContent(clearPath)
-					w.Header().Set("Content-Type", "text/plain")
-					_, err := io.WriteString(w, pasteContent)
-					if err != nil {
-						log.Println(err)
-					}
-				} else {
-					pasteContent := getContent(path)
-					s := pasteView{Content: pasteContent, Key: strings.TrimPrefix(path, "/")}
-					t, err := template.ParseFiles("templates/paste.html")
-					if err != nil {
-						log.Println(err)
-					}
-					err = t.Execute(w, s)
-					if err != nil {
-						log.Println(err)
-					}
-				}
-			} else {
-				w.WriteHeader(http.StatusNotFound)
-			}
-		}
-	case "POST":
-		if path == "/" {
-			secret := generateSecret()
-			url := "/" + generateUrl()
-			content := r.FormValue("content")
-			insertPaste(url, content, secret, -1)
-			http.Redirect(w, r, url, http.StatusSeeOther)
-		} else {
-			w.WriteHeader(http.StatusMethodNotAllowed)
-		}
-	case "DELETE":
-		if strings.HasPrefix(path, "/delete") {
-			urlItem := strings.Split(path, "/")
-			if urlExist("/" + urlItem[2]) {
-				secret := r.URL.Query().Get("secret")
-				if verifySecret("/"+urlItem[2], secret) {
-					deleteContent("/" + urlItem[2])
-					w.WriteHeader(http.StatusNoContent)
-				} else {
-					w.WriteHeader(http.StatusForbidden)
-				}
-			} else {
-				w.WriteHeader(http.StatusNotFound)
-			}
-		} else {
-			w.WriteHeader(http.StatusMethodNotAllowed)
-		}
-	}
-}
+var (
+	//go:embed templates
+	templates embed.FS
+	//go:embed static
+	static embed.FS
+)
 
 func main() {
-	db = connectDB()
-	currentConfig = getConfig()
-	listen := currentConfig.host + ":" + currentConfig.port
-	http.HandleFunc("/", handleRequest)
-
-	if currentConfig.host == "" {
-		fmt.Println("Listening on port " + listen)
-	} else {
-		fmt.Println("Listening on " + listen)
-	}
-
-	err := http.ListenAndServe(listen, nil)
+	initConfig := config.GetConfig()
+	dbConfig := database.InitDB(initConfig.RedisAddress, initConfig.RedisUser, initConfig.RedisPassword, initConfig.RedisDB)
+	db := database.ConnectDB(dbConfig)
+	err := database.Ping(db)
 	if err != nil {
 		log.Fatal(err)
 	}
+
+	serverConfig := httpserver.ServerConfig{
+		HTTPServer: httpserver.Config(initConfig.ListenAddress),
+		URLLength:  initConfig.URLLength,
+		DB:         db,
+		Static:     static,
+		Templates:  templates,
+	}
+
+	serverConfig.Server()
 }

renovate.json

@@ -0,0 +1,3 @@
+{
+  "$schema": "https://docs.renovatebot.com/renovate-schema.json"
+}

static/app.js

@@ -0,0 +1,31 @@
+const codeEditor = document.getElementById('content');
+const lineCounter = document.getElementById('lines');
+
+let lineCountCache = 0;
+
+// Update line counter
+function updateLineCounter() {
+    const lineCount = codeEditor.value.split('\n').length;
+
+    if (lineCountCache !== lineCount) {
+        const outarr = Array.from({length: lineCount}, (_, index) => index + 1);
+        lineCounter.value = outarr.join('\n');
+    }
+
+    lineCountCache = lineCount;
+}
+
+codeEditor.addEventListener('input', updateLineCounter);
+
+codeEditor.addEventListener('keydown', (e) => {
+    if (e.key === 'Tab') {
+        e.preventDefault();
+
+        const {value, selectionStart, selectionEnd} = codeEditor;
+        codeEditor.value = `${value.slice(0, selectionStart)}\t${value.slice(selectionEnd)}`;
+        codeEditor.setSelectionRange(selectionStart + 1, selectionStart + 1);
+        updateLineCounter();
+    }
+});
+
+updateLineCounter();

static/index.html

@@ -7,52 +7,61 @@
           name="description">
     <meta content="Plakken" name="author">
     <meta content="width=device-width, initial-scale=1.0" name="viewport">
-    <title>New plak • Plakken</title>
+    <title>New plak • Plakken</title><script async src="/static/app.js"></script>
     <link href="/static/style.css" rel="stylesheet">
 </head>
 <body>
-<form method="post">
-    <label for="content"></label>
-    <textarea autofocus id="content" name="content" placeholder="Your paste here"></textarea>
-    <nav>
-        <ul>
-            <li>
-                <label for="password">Password?</label>
-                <input id="password" type="text">
-            </li>
-            <li><label for="exp">Expiration?</label>
-                <input id="exp" type="date"></li>
-            <li>
-                <label for="type">Type</label>
-                <select id="type" name="type">
-                    <option value="auto">Auto Detect</option>
-                    <option value="c">C</option>
-                    <option value="cpp">C++</option>
-                    <option value="csharp">C#</option>
-                    <option value="css">CSS</option>
-                    <option value="go">Go</option>
-                    <option value="java">Java</option>
-                    <option value="js">Javascript</option>
-                    <option value="html">HTML</option>
-                    <option selected value="plain">Plaintext</option>
-                    <option value="python">Python</option>
-                    <option value="rb">Ruby</option>
-                    <option value="rs">Rust</option>
-                    <option value="sh">Shell</option>
-                    <option value="sql">SQL</option>
-                    <option value="ts">Typescript</option>
-                    <option value="xml">XML</option>
-                    <option value="yml">YAML</option>
-                </select>
-            </li>
-        </ul>
-        <button type="submit" title="Save plak">
-            <svg viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg">
-                <polyline points="9 11 12 14 22 4"></polyline>
-                <path d="M21 12v7a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2V5a2 2 0 0 1 2-2h11"></path>
-            </svg>
-        </button>
-    </nav>
+<form action="/create/" method="post">
+    <div>
+        <label for="lines"></label>
+        <textarea id="lines" readonly wrap="hard">1</textarea>
+    </div>
+    <div>
+        <label for="content"></label>
+        <textarea autofocus id="content" name="content" placeholder="Type your paste here"></textarea>
+        <nav>
+            <ul>
+                <li>
+                    <label for="password">
+                        <input id="password" placeholder="Password" type="text">
+                    </label>
+                </li>
+                <li>
+                    <label for="exp">
+                        <input id="exp" name="exp" placeholder="Expiration (1d1h1m1s)" type="text">
+                    </label>
+                </li>
+                <li>
+                    <label for="type">
+                        <select id="type" name="type">
+                            <option value="c">C</option>
+                            <option value="cpp">C++</option>
+                            <option value="csharp">C#</option>
+                            <option value="css">CSS</option>
+                            <option value="go">Go</option>
+                            <option value="java">Java</option>
+                            <option value="js">Javascript</option>
+                            <option value="html">HTML</option>
+                            <option selected value="plain">Plaintext</option>
+                            <option value="python">Python</option>
+                            <option value="rb">Ruby</option>
+                            <option value="rs">Rust</option>
+                            <option value="sh">Shell</option>
+                            <option value="sql">SQL</option>
+                            <option value="ts">Typescript</option>
+                            <option value="xml">XML</option>
+                            <option value="yml">YAML</option>
+                        </select>
+                    </label>
+                </li>
+            </ul>
+            <button title="Save plak" type="submit">
+                <svg viewBox="0 0 16 16" xmlns="http://www.w3.org/2000/svg">
+                    <path d="M12.736 3.97a.733.733 0 0 1 1.047 0c.286.289.29.756.01 1.05L7.88 12.01a.733.733 0 0 1-1.065.02L3.217 8.384a.757.757 0 0 1 0-1.06.733.733 0 0 1 1.047 0l3.052 3.093 5.4-6.425z"></path>
+                </svg>
+            </button>
+        </nav>
+    </div>
 </form>
 </body>
 </html>

static/style.css

@@ -1,8 +1,9 @@
 :root {
     --accent: #be0560;
-    --background: #141414;
+    --background: #121212;
     --border: #333;
-    --text: #e2e2e2;
+    --text: #e6e6e6;
+    --placeholder: #666;
 }
 
 body {
@@ -12,45 +13,20 @@ body {
     margin: 0;
 }
 
-button, textarea {
-    background-color: inherit;
-    border: none;
-}
-
-textarea {
-    color: var(--text);
-    font: 14px/1.6 "JetBrains Mono", monospace;
-    height: calc(100vh - 3rem);
-    outline: none;
-    padding: 1rem;
-    resize: none;
-    width: calc(100vw - 2rem);
-}
-
-pre {
-    margin: 15px;
-}
-
-nav {
-    align-items: end;
-    bottom: 1rem;
+form {
     display: flex;
     flex-flow: row wrap;
-    position: absolute;
-    right: 1rem;
 }
 
-ul {
-    display: flex;
-    flex-flow: row wrap;
-    gap: 2.6rem;
-    list-style: none;
-    margin: 0;
-    padding: 0 1.9rem;
-}
-
-label {
-    display: block;
+#lines {
+    color: var(--placeholder);
+    font: 400 14px/1.6 "JetBrains Mono", monospace;
+    height: calc(100vh - 29px);
+    overflow-y: hidden;
+    padding: 8px 0;
+    text-align: center;
+    user-select: none;
+    width: 26px;
 }
 
 input, select {
@@ -58,9 +34,9 @@ input, select {
     border: 2px solid var(--border);
     border-radius: 2px;
     color: var(--text);
-    font-size: 15px;
+    font-size: 13px;
     outline: none;
-    padding: 5px 6px;
+    padding: 6px 8px;
     transition: border .15s ease;
 }
 
@@ -68,14 +44,44 @@ input:hover, select:hover {
     border-color: var(--text);
 }
 
+button, textarea {
+    background-color: inherit;
+    border: none;
+    outline: none;
+    resize: none;
+}
+
+#content {
+    color: var(--text);
+    font: 400 14px/1.6 "JetBrains Mono", monospace;
+    height: calc(100vh - 29px);
+    padding: 8px;
+    width: calc(100vw - 45px);
+}
+
+nav {
+    top: 1rem;
+    display: flex;
+    flex-flow: row wrap;
+    position: absolute;
+    right: 12px;
+}
+
+ul {
+    display: flex;
+    flex-flow: row wrap;
+    gap: 36px;
+    list-style: none;
+    margin: 0;
+    padding: 0 1.9rem;
+}
+
 svg {
-    fill: none;
-    height: 26px;
-    stroke: var(--text);
-    stroke-width: 2;
-    stroke-linecap: round;
+    cursor: pointer;
+    height: 24px;
+    fill: var(--text);
     transition: .15s ease;
-    width: 26px;
+    width: 24px;
 }
 
 svg:hover {
@@ -86,10 +92,6 @@ input:focus-visible, select:focus-visible {
     border: 2px solid var(--text);
 }
 
-button:focus-visible{
-    outline: none;
-}
-
 ::selection {
     background-color: var(--accent);
     color: #fff;

test/secret/secret_test.go

@@ -0,0 +1,58 @@
+package secret_test
+
+import (
+	"fmt"
+	"regexp"
+	"testing"
+
+	"git.gnous.eu/gnouseu/plakken/internal/constant"
+	"git.gnous.eu/gnouseu/plakken/internal/secret"
+	"golang.org/x/crypto/argon2"
+)
+
+func TestSecret(t *testing.T) {
+	t.Parallel()
+
+	testPasswordFormat(t)
+	testVerifyPassword(t)
+	testVerifyPasswordInvalid(t)
+}
+
+func testPasswordFormat(t *testing.T) {
+	t.Helper()
+	regex := fmt.Sprintf("\\$argon2id\\$v=%d\\$m=%d,t=%d,p=%d\\$[A-Za-z0-9+/]*\\$[A-Za-z0-9+/]*$", argon2.Version, constant.ArgonMemory, constant.ArgonIterations, constant.ArgonThreads) //nolint:lll
+
+	got, err := secret.Password("Password!")
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	result, _ := regexp.MatchString(regex, got)
+	if !result {
+		t.Fatal("Error in Password, format is not valid "+": ", got)
+	}
+}
+
+func testVerifyPassword(t *testing.T) {
+	t.Helper()
+	result, err := secret.VerifyPassword("Password!", "$argon2id$v=19$m=65536,t=2,p=4$A+t5YGpyy1BHCbvk/LP1xQ$eNuUj6B2ZqXlGi6KEqep39a7N4nysUIojuPXye+Ypp0") //nolint:lll
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	if !result {
+		t.Fatal("Error in VerifyPassword, got:", result, "want: ", true)
+	}
+}
+
+func testVerifyPasswordInvalid(t *testing.T) {
+	t.Helper()
+	result, err := secret.VerifyPassword("notsamepassword", "$argon2id$v=19$m=65536,t=2,p=4$A+t5YGpyy1BHCbvk/LP1xQ$eNuUj6B2ZqXlGi6KEqep39a7N4nysUIojuPXye+Ypp0") //nolint:lll
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	if result {
+		t.Fatal("Error in VerifyPassword, got:", result, "want: ", false)
+	}
+}

test/utils/utils_test.go

@@ -0,0 +1,135 @@
+package utils_test
+
+import (
+	"errors"
+	"testing"
+
+	"git.gnous.eu/gnouseu/plakken/internal/utils"
+)
+
+func TestUtils(t *testing.T) {
+	t.Parallel()
+
+	testCheckCharNotRedundantTrue(t)
+	testCheckCharNotRedundantFalse(t)
+	testParseExpirationFull(t)
+	testParseExpirationMissing(t)
+	testParseExpirationWithCaps(t)
+	testParseExpirationNull(t)
+	testParseExpirationNegative(t)
+	testParseExpirationInvalid(t)
+	testParseExpirationInvalidRedundant(t)
+	testParseExpirationInvalidTooHigh(t)
+	testValidKey(t)
+	testInValidKey(t)
+}
+
+func testCheckCharNotRedundantTrue(t *testing.T) { // Test CheckCharRedundant with redundant char
+	t.Helper()
+	want := true
+	got := utils.CheckCharRedundant("2d1h3md4h7s", "h")
+	if got != want {
+		t.Fatal("Error in parseExpirationFull, want : ", want, "got : ", got)
+	}
+}
+
+func testCheckCharNotRedundantFalse(t *testing.T) { // Test CheckCharRedundant with not redundant char
+	t.Helper()
+	want := false
+	got := utils.CheckCharRedundant("2d1h3m47s", "h")
+	if got != want {
+		t.Fatal("Error in parseExpirationFull, want : ", want, "got : ", got)
+	}
+}
+
+func testParseExpirationFull(t *testing.T) { // test parseExpirationFull with all valid separator
+	t.Helper()
+	result, _ := utils.ParseExpiration("2d1h3m47s")
+	correctValue := 176627
+	if result != correctValue {
+		t.Fatal("Error in parseExpirationFull, want : ", correctValue, "got : ", result)
+	}
+}
+
+func testParseExpirationMissing(t *testing.T) { // test parseExpirationFull with all valid separator
+	t.Helper()
+	result, _ := utils.ParseExpiration("1h47s")
+	correctValue := 3647
+	if result != correctValue {
+		t.Fatal("Error in ParseExpirationFull, want : ", correctValue, "got : ", result)
+	}
+}
+
+func testParseExpirationWithCaps(t *testing.T) { // test parseExpirationFull with all valid separator
+	t.Helper()
+	result, _ := utils.ParseExpiration("2D1h3M47s")
+	correctValue := 176627
+	if result != correctValue {
+		t.Fatal("Error in parseExpirationFull, want : ", correctValue, "got : ", result)
+	}
+}
+
+func testParseExpirationNull(t *testing.T) { // test ParseExpirationFull with all valid separator
+	t.Helper()
+	result, _ := utils.ParseExpiration("0")
+	correctValue := 0
+	if result != correctValue {
+		t.Fatal("Error in ParseExpirationFull, want: ", correctValue, "got: ", result)
+	}
+}
+
+func testParseExpirationNegative(t *testing.T) { // test ParseExpirationFull with all valid separator
+	t.Helper()
+	_, got := utils.ParseExpiration("-42h1m4s")
+	want := &utils.ParseExpirationError{}
+	if !errors.As(got, &want) {
+		t.Fatal("Error in ParseExpirationFull, want : ", want, "got : ", got)
+	}
+}
+
+func testParseExpirationInvalid(t *testing.T) { // test ParseExpirationFull with all valid separator
+	t.Helper()
+	_, got := utils.ParseExpiration("8h42h1m1d4s")
+	want := &utils.ParseExpirationError{}
+	if !errors.As(got, &want) {
+		t.Fatal("Error in ParseExpirationFull, want : ", want, "got : ", got)
+	}
+}
+
+func testParseExpirationInvalidRedundant(t *testing.T) { // test ParseExpirationFull with all valid separator
+	t.Helper()
+	_, got := utils.ParseExpiration("8h42h1m1h4s")
+	want := &utils.ParseExpirationError{}
+	if !errors.As(got, &want) {
+		t.Fatal("Error in ParseExpirationFull, want : ", want, "got : ", got)
+	}
+}
+
+func testParseExpirationInvalidTooHigh(t *testing.T) { // test ParseExpirationFull with all valid separator
+	t.Helper()
+	_, got := utils.ParseExpiration("2d1h3m130s")
+	want := &utils.ParseExpirationError{}
+	if !errors.As(got, &want) {
+		t.Fatal("Error in ParseExpirationFull, want : ", want, "got : ", got)
+	}
+}
+
+func testValidKey(t *testing.T) { // test ValidKey with a valid key
+	t.Helper()
+	got := utils.ValidKey("ab_a-C42")
+	want := true
+
+	if got != want {
+		t.Fatal("Error in ValidKey, want : ", want, "got : ", got)
+	}
+}
+
+func testInValidKey(t *testing.T) { // test ValidKey with invalid key
+	t.Helper()
+	got := utils.ValidKey("ab_?a-C42")
+	want := false
+
+	if got != want {
+		t.Fatal("Error in ValidKey, want : ", want, "got : ", got)
+	}
+}

utils.go

@@ -1,40 +0,0 @@
-package main
-
-import (
-	"crypto/rand"
-	"encoding/hex"
-	"log"
-	mathrand "math/rand"
-)
-
-func generateUrl() string {
-	listChars := []rune("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789")
-	b := make([]rune, currentConfig.urlLength)
-	for i := range b {
-		b[i] = listChars[mathrand.Intn(len(listChars))]
-	}
-
-	return string(b)
-}
-
-func generateSecret() string {
-	key := make([]byte, 32)
-	_, err := rand.Read(key)
-	if err != nil {
-		log.Printf("Failed to generate secret")
-	}
-
-	return hex.EncodeToString(key)
-}
-
-func urlExist(url string) bool {
-	exist := db.Exists(ctx, url).Val()
-	return exist == 1
-}
-
-func verifySecret(url string, secret string) bool {
-	if secret == db.HGet(ctx, url, "secret").Val() {
-		return true
-	}
-	return false
-}