160 lines
3.5 KiB
Go
160 lines
3.5 KiB
Go
package main
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import (
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"bytes"
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"flag"
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"fmt"
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"io"
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"log"
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"os"
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"os/exec"
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"strings"
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"text/template"
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"time"
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"github.com/gin-gonic/gin"
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"github.com/lancatlin/ledger-quicknote/auth"
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)
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var ledgerTpl *template.Template
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var htmlTpl *template.Template
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var LEDGER_FILE string
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var LEDGER_INIT string
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var WORKING_DIR string
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var HOST string
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var store auth.AuthStore
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const HTPASSWD_FILE = ".htpasswd"
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type TxData struct {
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Action string `form:"action" binding:"required"`
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Name string `form:"name"`
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Date string
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Amount string `form:"amount" binding:"required"`
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Account string `form:"account"`
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}
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type UserLogin struct {
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Email string `form:"email" binding:"required"`
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Password string `form:"password" binding:"required"`
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}
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func init() {
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ledgerTpl = template.Must(template.ParseGlob("tx/*"))
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flag.StringVar(&LEDGER_FILE, "f", "example.txt", "ledger journal file to write")
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flag.StringVar(&LEDGER_INIT, "i", "", "ledger initiation file")
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flag.StringVar(&WORKING_DIR, "w", "", "ledger working directory")
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flag.StringVar(&HOST, "b", "127.0.0.1:8000", "binding address")
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flag.Parse()
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var err error
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store, err = auth.NewHtpasswd(HTPASSWD_FILE)
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if err != nil {
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panic(err)
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}
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}
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func main() {
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r := gin.Default()
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r.HTMLRender = loadTemplates("templates")
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r.GET("/dashboard", func(c *gin.Context) {
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c.HTML(200, "index.html", struct {
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Templates []*template.Template
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Scripts map[string][]string
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}{
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ledgerTpl.Templates(),
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SCRIPTS,
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})
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})
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r.POST("/new", func(c *gin.Context) {
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var data TxData
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if err := c.ShouldBind(&data); err != nil {
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c.AbortWithError(400, err)
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return
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}
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tx, err := newTx(data)
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if err != nil {
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c.AbortWithError(400, err)
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log.Println(err, c.Request.Form)
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return
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}
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c.HTML(200, "new.html", struct {
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Tx string
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}{tx})
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})
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r.POST("/submit", func(c *gin.Context) {
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tx := c.PostForm("tx")
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if err := appendToFile(tx); err != nil {
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c.AbortWithError(500, err)
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return
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}
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c.HTML(200, "success.html", struct {
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Tx string
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}{tx})
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})
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r.GET("/exec", func(c *gin.Context) {
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name, _ := c.GetQuery("name")
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if err := executeScript(c.Writer, name); err != nil {
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c.AbortWithError(500, err)
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log.Println(err)
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return
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}
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})
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r.GET("/signup", func(c *gin.Context) {
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c.HTML(200, "signup.html", nil)
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})
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r.POST("/signup", func(c *gin.Context) {
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var user UserLogin
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if err := c.ShouldBind(&user); err != nil {
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c.HTML(400, "signup.html", err)
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return
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}
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if err := store.Register(user.Email, user.Password); err != nil {
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c.HTML(400, "signup.html", err)
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return
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}
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c.Request.SetBasicAuth(user.Email, user.Password)
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c.Redirect(303, "/dashboard")
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})
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log.Fatal(r.Run(HOST))
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}
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func newTx(data TxData) (result string, err error) {
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data.Date = time.Now().Format("2006/01/02")
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var buf bytes.Buffer
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err = ledgerTpl.ExecuteTemplate(&buf, data.Action, data)
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return buf.String(), nil
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}
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func appendToFile(tx string) (err error) {
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f, err := os.OpenFile(LEDGER_FILE, os.O_WRONLY|os.O_CREATE|os.O_APPEND, 0644)
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if err != nil {
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return err
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}
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defer f.Close()
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buf := strings.NewReader(strings.ReplaceAll(tx, "\r", "")) // Remove CR generated from browser
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_, err = io.Copy(f, buf)
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return err
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}
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func executeScript(w io.Writer, name string) (err error) {
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script, ok := SCRIPTS[name]
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if !ok {
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return fmt.Errorf("%s script not found", name)
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}
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cmd := exec.Command("ledger", append([]string{"--init-file", LEDGER_INIT, "--file", LEDGER_FILE}, script...)...)
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cmd.Dir = WORKING_DIR
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cmd.Stdout = w
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cmd.Stderr = w
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return cmd.Run()
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}
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