mirror of https://github.com/schollz/cowyo.git
643 lines
19 KiB
Go
643 lines
19 KiB
Go
package main
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import (
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"bytes"
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"fmt"
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"html/template"
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"io"
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"io/ioutil"
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"log"
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"net/http"
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"os"
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"path"
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"regexp"
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"strconv"
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"strings"
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"time"
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"github.com/boltdb/bolt"
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"github.com/gin-gonic/contrib/sessions"
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"github.com/gin-gonic/gin"
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"github.com/microcosm-cc/bluemonday"
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"github.com/russross/blackfriday"
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)
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const _24K = (1 << 20) * 24
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func putFile(c *gin.Context) {
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if isIPBanned(c.ClientIP()) {
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c.Data(200, "text/plain", []byte("You are rate limited to 20 requests/hour."))
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return
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}
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filename := c.Param("title")
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if len(filename) == 0 {
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filename = randomAlliterateCombo()
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}
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contentLength := c.Request.ContentLength
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var reader io.Reader
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reader = c.Request.Body
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if contentLength == -1 {
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// queue file to disk, because s3 needs content length
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var err error
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var f io.Reader
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f = reader
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var b bytes.Buffer
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n, err := io.CopyN(&b, f, _24K+1)
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if err != nil && err != io.EOF {
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log.Printf("%s", err.Error())
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}
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if n > _24K {
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file, err := ioutil.TempFile("./", "transfer-")
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if err != nil {
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log.Printf("%s", err.Error())
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}
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defer file.Close()
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n, err = io.Copy(file, io.MultiReader(&b, f))
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if err != nil {
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os.Remove(file.Name())
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log.Printf("%s", err.Error())
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}
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reader, err = os.Open(file.Name())
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} else {
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reader = bytes.NewReader(b.Bytes())
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}
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contentLength = n
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}
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buf := new(bytes.Buffer)
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buf.ReadFrom(reader)
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// p := WikiData{filename, "", []string{}, []string{}, false, ""}
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// p.save(buf.String())
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var p WikiData
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p.load(strings.ToLower(filename))
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p.save(buf.String())
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c.Data(200, "text/plain", []byte("File uploaded to http://"+RuntimeArgs.ExternalIP+"/"+filename))
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}
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type EncryptionPost struct {
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Text string `form:"text" json:"text" binding:"required"`
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Password string `form:"password" json:"password" binding:"required"`
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}
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func encryptionRoute(c *gin.Context) {
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title := c.Param("title")
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option := c.Param("option")
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var jsonLoad EncryptionPost
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if option == "/decrypt" {
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if c.BindJSON(&jsonLoad) == nil {
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var err error
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currentText, _, _, _, encrypted, _, _ := getCurrentText(title, -1)
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if encrypted == true {
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currentText, err = decryptString(currentText, jsonLoad.Password)
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if err != nil {
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c.JSON(200, gin.H{
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"status": "Inorrect passphrase.",
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"title": title,
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"option": option,
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"success": false,
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})
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} else {
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p := WikiData{strings.ToLower(title), "", []string{}, []string{}, false, ""}
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p.save(currentText)
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c.JSON(200, gin.H{
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"status": "posted",
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"title": title,
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"option": option,
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"success": true,
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})
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}
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}
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} else {
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c.JSON(200, gin.H{
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"status": "Could not bind",
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"title": title,
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"option": option,
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"success": false,
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})
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}
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}
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if option == "/encrypt" {
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if c.BindJSON(&jsonLoad) == nil {
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p := WikiData{strings.ToLower(title), "", []string{}, []string{}, true, ""}
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p.save(encryptString(jsonLoad.Text, jsonLoad.Password))
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c.JSON(200, gin.H{
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"status": "posted",
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"title": title,
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"option": option,
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"success": true,
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})
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} else {
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c.JSON(200, gin.H{
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"status": "posted",
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"title": title,
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"option": option,
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"success": false,
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})
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}
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}
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if option == "/lock" {
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if c.BindJSON(&jsonLoad) == nil {
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var p WikiData
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err := p.load(strings.ToLower(title))
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if err != nil {
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panic(err)
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}
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hashedPassword, _ := HashPassword([]byte(jsonLoad.Password))
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p.Locked = string(hashedPassword)
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p.save(p.CurrentText)
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c.JSON(200, gin.H{
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"status": "posted",
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"title": title,
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"option": option,
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"success": true,
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})
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} else {
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c.JSON(200, gin.H{
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"status": "posted",
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"title": title,
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"option": option,
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"success": false,
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})
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}
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}
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if option == "/unlock" {
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if c.BindJSON(&jsonLoad) == nil {
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var p WikiData
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err := p.load(strings.ToLower(title))
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if err != nil {
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panic(err)
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}
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if len(p.Locked) > 0 &&
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(p.Locked == jsonLoad.Password ||
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CheckPasswordHash([]byte(p.Locked), []byte(jsonLoad.Password)) == nil) {
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p.Locked = ""
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p.save(p.CurrentText)
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c.JSON(200, gin.H{
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"status": "Unlocked!",
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"title": title,
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"option": option,
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"success": true,
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})
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} else {
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c.JSON(200, gin.H{
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"status": "Incorrect password!",
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"title": title,
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"option": option,
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"success": false,
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})
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}
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} else {
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c.JSON(200, gin.H{
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"status": "posted",
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"title": title,
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"option": option,
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"success": false,
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})
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}
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}
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}
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func newNote(c *gin.Context) {
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title := randomAlliterateCombo()
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c.Redirect(302, "/"+title)
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}
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func getCodeType(title string) string {
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if strings.Contains(title, ".js") {
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return "javascript"
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} else if strings.Contains(title, ".py") {
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return "python"
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} else if strings.Contains(title, ".go") {
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return "go"
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} else if strings.Contains(title, ".html") {
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return "htmlmixed"
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} else if strings.Contains(title, ".md") {
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return "markdown"
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} else if strings.Contains(title, ".sh") {
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return "shell"
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} else if strings.Contains(title, ".css") {
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return "css"
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}
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return ""
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}
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func getRecentlyEdited(title string, c *gin.Context) []string {
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session := sessions.Default(c)
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var recentlyEdited string
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v := session.Get("recentlyEdited")
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editedThings := []string{}
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if v == nil {
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recentlyEdited = title
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} else {
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editedThings = strings.Split(v.(string), "|||")
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if !stringInSlice(title, editedThings) {
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recentlyEdited = v.(string) + "|||" + title
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} else {
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recentlyEdited = v.(string)
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}
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}
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session.Set("recentlyEdited", recentlyEdited)
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session.Save()
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return editedThings
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}
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func editNote(c *gin.Context) {
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title := c.Param("title")
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if title == "ws" {
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wshandler(c.Writer, c.Request)
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} else if title == "robots.txt" {
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robotsTxtFile, _ := ioutil.ReadFile(path.Join(RuntimeArgs.SourcePath, "static/text/robots.txt"))
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c.Data(200, "text/plain", robotsTxtFile)
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} else if title == "sitemap.xml" {
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robotsTxtFile, _ := ioutil.ReadFile(path.Join(RuntimeArgs.SourcePath, "static/text/sitemap.xml"))
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c.Data(200, "text/plain", robotsTxtFile)
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} else if strings.ToLower(title) == "help" { //}&& strings.Contains(AllowedIPs, c.ClientIP()) != true {
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c.Redirect(302, "/Help/view")
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} else {
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version := c.DefaultQuery("version", "-1")
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versionNum, _ := strconv.Atoi(version)
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currentText, versions, currentVersion, totalTime, encrypted, locked, currentVersionNum := getCurrentText(title, versionNum)
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if strings.Contains(c.Request.Header.Get("User-Agent"), "curl/") {
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c.Data(200, "text/plain", []byte(currentText))
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return
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}
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if encrypted || len(locked) > 0 {
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c.Redirect(302, "/"+title+"/view")
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return
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}
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if strings.Contains(currentText, "self-destruct\n") || strings.Contains(currentText, "\nself-destruct") {
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c.Redirect(302, "/"+title+"/view")
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return
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}
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numRows := len(strings.Split(currentText, "\n")) + 10
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totalTimeString := totalTime.String()
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if totalTime.Seconds() < 1 {
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totalTimeString = "< 1 s"
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}
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splitStrings := strings.Split(title, ".")
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suffix := splitStrings[len(splitStrings)-1]
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CodeType := getCodeType(title)
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c.HTML(http.StatusOK, "index.tmpl", gin.H{
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"Title": title,
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"WikiName": RuntimeArgs.WikiName,
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"ExternalIP": RuntimeArgs.ExternalIP,
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"CurrentText": currentText,
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"CurrentVersionNum": currentVersionNum,
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"NumRows": numRows,
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"Versions": versions,
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"TotalTime": totalTimeString,
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"SocketType": RuntimeArgs.Socket,
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"NoEdit": !currentVersion,
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"Coding": len(CodeType) > 0,
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"CodeType": CodeType,
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"Suffix": suffix,
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"RecentlyEdited": getRecentlyEdited(title, c),
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})
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}
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}
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func everythingElse(c *gin.Context) {
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option := c.Param("option")
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title := c.Param("title")
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if option == "/view" || option == "/v" {
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version := c.DefaultQuery("version", "-1")
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noprompt := c.DefaultQuery("noprompt", "-1")
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versionNum, _ := strconv.Atoi(version)
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if strings.ToLower(title) == "help" {
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versionNum = -1
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}
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currentText, versions, _, totalTime, encrypted, locked, _ := getCurrentText(title, versionNum)
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if (strings.Contains(currentText, "self-destruct\n") || strings.Contains(currentText, "\nself-destruct")) && strings.ToLower(title) != "help" {
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currentText = strings.Replace(currentText, "self-destruct\n", `> *This page has been deleted, you cannot return after closing.*`+"\n", 1)
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currentText = strings.Replace(currentText, "\nself-destruct", "\n"+`> *This page has been deleted, you cannot return after closing.*`, 1)
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p := WikiData{strings.ToLower(title), "", []string{}, []string{}, false, ""}
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p.save("")
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}
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renderMarkdown(c, currentText, title, versions, "", totalTime, encrypted, noprompt == "-1", len(locked) > 0, getRecentlyEdited(title, c))
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} else if option == "/raw" {
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version := c.DefaultQuery("version", "-1")
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versionNum, _ := strconv.Atoi(version)
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if strings.ToLower(title) == "help" {
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versionNum = -1
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}
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currentText, _, _, _, _, _, _ := getCurrentText(title, versionNum)
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c.Writer.Header().Set("Content-Type", contentType(title))
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c.Writer.Header().Set("Access-Control-Allow-Origin", "*")
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c.Writer.Header().Set("Access-Control-Max-Age", "86400")
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c.Writer.Header().Set("Access-Control-Allow-Methods", "POST, GET, OPTIONS, PUT, DELETE, UPDATE")
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c.Writer.Header().Set("Access-Control-Allow-Headers", "Content-Type, Content-Length, Accept-Encoding, X-CSRF-Token, Authorization, X-Max")
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c.Writer.Header().Set("Access-Control-Allow-Credentials", "true")
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c.Data(200, contentType(title), []byte(currentText))
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} else if title == "ls" && option == "/"+RuntimeArgs.AdminKey && len(RuntimeArgs.AdminKey) > 1 {
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renderMarkdown(c, listEverything(), "ls", nil, RuntimeArgs.AdminKey, time.Now().Sub(time.Now()), false, false, false, []string{})
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} else if option == "/list" || option == "/l" {
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renderList(c, title)
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} else if title == "static" {
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serveStaticFile(c, option)
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} else {
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c.Redirect(302, "/"+title)
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}
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}
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func serveStaticFile(c *gin.Context, option string) {
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staticFile, err := ioutil.ReadFile(path.Join(RuntimeArgs.SourcePath, "static") + option)
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if err != nil {
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c.AbortWithStatus(404)
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} else {
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c.Data(200, contentType(option), []byte(staticFile))
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}
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}
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func renderMarkdown(c *gin.Context, currentText string, title string, versions []versionsInfo, AdminKey string, totalTime time.Duration, encrypted bool, noprompt bool, locked bool, recentlyEdited []string) {
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originalText := currentText
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CodeType := getCodeType(title)
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if CodeType == "markdown" {
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CodeType = ""
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}
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r, _ := regexp.Compile("\\[\\[(.*?)\\]\\]")
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for _, s := range r.FindAllString(currentText, -1) {
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currentText = strings.Replace(currentText, s, "["+s[2:len(s)-2]+"](/"+s[2:len(s)-2]+"/view)", 1)
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}
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unsafe := blackfriday.MarkdownCommon([]byte(currentText))
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pClean := bluemonday.UGCPolicy()
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pClean.AllowElements("img")
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pClean.AllowAttrs("alt").OnElements("img")
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pClean.AllowAttrs("src").OnElements("img")
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pClean.AllowAttrs("class").OnElements("a")
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pClean.AllowAttrs("href").OnElements("a")
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pClean.AllowAttrs("id").OnElements("a")
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pClean.AllowDataURIImages()
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html := pClean.SanitizeBytes(unsafe)
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html2 := string(html)
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r, _ = regexp.Compile("\\$\\$(.*?)\\$\\$")
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for _, s := range r.FindAllString(html2, -1) {
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html2 = strings.Replace(html2, s, "<span class='texp' data-expr='"+s[2:len(s)-2]+"'></span>", 1)
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}
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r, _ = regexp.Compile("\\$(.*?)\\$")
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for _, s := range r.FindAllString(html2, -1) {
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html2 = strings.Replace(html2, s, "<span class='texi' data-expr='"+s[1:len(s)-1]+"'></span>", 1)
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}
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html2 = strings.Replace(html2, "&#36;", "$", -1)
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html2 = strings.Replace(html2, "&#91;", "[", -1)
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html2 = strings.Replace(html2, "&#93;", "]", -1)
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html2 = strings.Replace(html2, "&35;", "#", -1)
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totalTimeString := totalTime.String()
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if totalTime.Seconds() < 1 {
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totalTimeString = "< 1 s"
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}
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if encrypted {
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CodeType = "asciiarmor"
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}
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c.HTML(http.StatusOK, "view.tmpl", gin.H{
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"Title": title,
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"WikiName": RuntimeArgs.WikiName,
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"Body": template.HTML([]byte(html2)),
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"CurrentText": originalText,
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"Versions": versions,
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"TotalTime": totalTimeString,
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"AdminKey": AdminKey,
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"Encrypted": encrypted,
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"Locked": locked,
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"Prompt": noprompt,
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"LockedOrEncrypted": locked || encrypted,
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"Coding": len(CodeType) > 0,
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"CodeType": CodeType,
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"RecentlyEdited": recentlyEdited,
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})
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}
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func reorderList(text string) ([]template.HTML, []string) {
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listItemsString := ""
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for _, lineString := range strings.Split(text, "\n") {
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if len(lineString) > 1 {
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if string(lineString[0]) != "-" {
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listItemsString += "- " + lineString + "\n"
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} else {
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listItemsString += lineString + "\n"
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}
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}
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}
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// get ordering of template.HTML for rendering
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renderedListString := string(blackfriday.MarkdownCommon([]byte(listItemsString)))
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listItems := []template.HTML{}
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endItems := []template.HTML{}
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for _, lineString := range strings.Split(renderedListString, "\n") {
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if len(lineString) > 1 {
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if strings.Contains(lineString, "<del>") || strings.Contains(lineString, "</ul>") {
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endItems = append(endItems, template.HTML(lineString))
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} else {
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listItems = append(listItems, template.HTML(lineString))
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}
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}
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}
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// get ordering of strings for deleting
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listItemsStringArray := []string{}
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endItemsStringArray := []string{}
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for _, lineString := range strings.Split(listItemsString, "\n") {
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if len(lineString) > 1 {
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if strings.Contains(lineString, "~~") {
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endItemsStringArray = append(endItemsStringArray, lineString)
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} else {
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listItemsStringArray = append(listItemsStringArray, lineString)
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}
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}
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}
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return append(listItems, endItems...), append(listItemsStringArray, endItemsStringArray...)
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}
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func renderList(c *gin.Context, title string) {
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if strings.ToLower(title) == "help" { //}&& strings.Contains(AllowedIPs, c.ClientIP()) != true {
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c.Redirect(302, "/Help/view")
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}
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var p WikiData
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err := p.load(strings.ToLower(title))
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if err != nil {
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panic(err)
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}
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currentText := p.CurrentText
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if strings.Contains(currentText, "self-destruct\n") || strings.Contains(currentText, "\nself-destruct") {
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c.Redirect(302, "/"+title+"/view")
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}
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if p.Encrypted || len(p.Locked) > 0 {
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c.Redirect(302, "/"+title+"/view")
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}
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// Convert [[page]] to [page](/page/view)
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r, _ := regexp.Compile("\\[\\[(.*?)\\]\\]")
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for _, s := range r.FindAllString(p.CurrentText, -1) {
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p.CurrentText = strings.Replace(p.CurrentText, s, "["+s[2:len(s)-2]+"](/"+s[2:len(s)-2]+"/view)", 1)
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}
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pClean := bluemonday.UGCPolicy()
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pClean.AllowElements("img")
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pClean.AllowAttrs("alt").OnElements("img")
|
|
pClean.AllowAttrs("src").OnElements("img")
|
|
pClean.AllowAttrs("class").OnElements("a")
|
|
pClean.AllowAttrs("href").OnElements("a")
|
|
pClean.AllowAttrs("id").OnElements("a")
|
|
pClean.AllowDataURIImages()
|
|
text := pClean.SanitizeBytes([]byte(p.CurrentText))
|
|
listItems, _ := reorderList(string(text))
|
|
for i := range listItems {
|
|
newHTML := strings.Replace(string(listItems[i]), "</a>", "</a>"+`<span id="`+strconv.Itoa(i)+`" class="deletable">`, -1)
|
|
newHTML = strings.Replace(newHTML, "<a href=", "</span><a href=", -1)
|
|
newHTML = strings.Replace(newHTML, "<li>", "<li>"+`<span id="`+strconv.Itoa(i)+`" class="deletable">`, -1)
|
|
newHTML = strings.Replace(newHTML, "</li>", "</span></li>", -1)
|
|
newHTML = strings.Replace(newHTML, "<li>"+`<span id="`+strconv.Itoa(i)+`" class="deletable"><del>`, "<li><del>"+`<span id="`+strconv.Itoa(i)+`" class="deletable">`, -1)
|
|
newHTML = strings.Replace(newHTML, "</del></span></li>", "</span></del></li>", -1)
|
|
listItems[i] = template.HTML([]byte(newHTML))
|
|
}
|
|
c.HTML(http.StatusOK, "list.tmpl", gin.H{
|
|
"Title": title,
|
|
"WikiName": RuntimeArgs.WikiName,
|
|
"ListItems": listItems,
|
|
"RecentlyEdited": getRecentlyEdited(title, c),
|
|
})
|
|
}
|
|
|
|
func deleteListItem(c *gin.Context) {
|
|
lineNum, err := strconv.Atoi(c.DefaultQuery("lineNum", "None"))
|
|
title := c.Query("title") // shortcut for c.Request.URL.Query().Get("lastname")
|
|
if err == nil {
|
|
var p WikiData
|
|
err := p.load(strings.ToLower(title))
|
|
if err != nil {
|
|
panic(err)
|
|
}
|
|
|
|
_, listItems := reorderList(p.CurrentText)
|
|
newText := p.CurrentText
|
|
for i, lineString := range listItems {
|
|
// fmt.Println(i, lineString, lineNum)
|
|
if i+1 == lineNum {
|
|
// fmt.Println("MATCHED")
|
|
if strings.Contains(lineString, "~~") == false {
|
|
// fmt.Println(p.Text, "("+lineString[2:]+"\n"+")", "~~"+lineString[2:]+"~~"+"\n")
|
|
newText = strings.Replace(newText+"\n", lineString[2:]+"\n", "~~"+strings.TrimSpace(lineString[2:])+"~~"+"\n", 1)
|
|
} else {
|
|
newText = strings.Replace(newText+"\n", lineString[2:]+"\n", lineString[4:len(lineString)-2]+"\n", 1)
|
|
}
|
|
p.save(newText)
|
|
break
|
|
}
|
|
}
|
|
|
|
c.JSON(200, gin.H{
|
|
"message": "Done.",
|
|
})
|
|
} else {
|
|
c.JSON(404, gin.H{
|
|
"message": "?",
|
|
})
|
|
}
|
|
}
|
|
|
|
func deletePage(c *gin.Context) {
|
|
deleteName := c.DefaultQuery("DeleteName", "None")
|
|
// if adminKey == RuntimeArgs.AdminKey || true == true {
|
|
if strings.ToLower(deleteName) != "help" {
|
|
p := WikiData{strings.ToLower(deleteName), "", []string{}, []string{}, false, ""}
|
|
p.save("")
|
|
}
|
|
// // remove from program data
|
|
// var deleteKey []byte
|
|
// foundKey := false
|
|
// err := db.View(func(tx *bolt.Tx) error {
|
|
// b := tx.Bucket([]byte("programdata"))
|
|
// c := b.Cursor()
|
|
// for k, v := c.First(); k != nil; k, v = c.Next() {
|
|
// if strings.ToLower(string(v)) == strings.ToLower(deleteName) {
|
|
// fmt.Println("FOUND " + string(v))
|
|
// deleteKey = k
|
|
// foundKey = true
|
|
// break
|
|
// }
|
|
// }
|
|
// return nil
|
|
// })
|
|
// if err != nil {
|
|
// panic(err)
|
|
// }
|
|
// if foundKey == true {
|
|
// fmt.Println(len([]string{}))
|
|
// fmt.Println(deleteKey)
|
|
// db.View(func(tx *bolt.Tx) error {
|
|
// b := tx.Bucket([]byte("programdata"))
|
|
// err := b.Delete(deleteKey)
|
|
// return err
|
|
// })
|
|
// }
|
|
|
|
// return OKAY
|
|
c.JSON(200, gin.H{
|
|
"message": "Done.",
|
|
})
|
|
// } else {
|
|
// c.JSON(404, gin.H{
|
|
// "message": "?",
|
|
// })
|
|
// }
|
|
}
|
|
|
|
func listEverything() string {
|
|
Open(RuntimeArgs.DatabaseLocation)
|
|
defer Close()
|
|
everything := `| Title | Current size | Changes | Total Size | |
|
|
| --------- |-------------| -----| ------------- | ------------- |
|
|
`
|
|
db.View(func(tx *bolt.Tx) error {
|
|
// Assume bucket exists and has keys
|
|
b := tx.Bucket([]byte("datas"))
|
|
c := b.Cursor()
|
|
for k, v := c.First(); k != nil; k, v = c.Next() {
|
|
var p WikiData
|
|
p.load(string(k))
|
|
if len(p.CurrentText) > 1 {
|
|
contentSize := strconv.Itoa(len(p.CurrentText))
|
|
numChanges := strconv.Itoa(len(p.Diffs))
|
|
totalSize := strconv.Itoa(len(v))
|
|
everything += "| [" + p.Title + "](/" + p.Title + "/view) | " + contentSize + " | " + numChanges + " | " + totalSize + ` | <a class="deleteable" id="` + p.Title + `">Delete</a> | ` + "\n"
|
|
}
|
|
}
|
|
return nil
|
|
})
|
|
return everything
|
|
}
|
|
|
|
func dumpEverything(folderpath string) {
|
|
Open(RuntimeArgs.DatabaseLocation)
|
|
defer Close()
|
|
err := os.MkdirAll(folderpath, 0777)
|
|
if err != nil {
|
|
fmt.Printf("%s folder already exists.", folderpath)
|
|
}
|
|
db.View(func(tx *bolt.Tx) error {
|
|
// Assume bucket exists and has keys
|
|
b := tx.Bucket([]byte("datas"))
|
|
c := b.Cursor()
|
|
for k, _ := c.First(); k != nil; k, _ = c.Next() {
|
|
var p WikiData
|
|
p.load(string(k))
|
|
if len(p.CurrentText) > 0 {
|
|
ioutil.WriteFile(path.Join(folderpath, string(k)), []byte(p.CurrentText), 0644)
|
|
}
|
|
}
|
|
return nil
|
|
})
|
|
}
|