+ Maximum pad length

+ Configurable maximum pad length
+ Refresh pad
+ Archive pad
+ Archives in local client storage
+ Download pad

lib/helper/helper_main.go

@@ -16,6 +16,28 @@ func GetDomainBase() string {
 	return domainBase
 }
 
+func GetMaximumPadSize() int {
+	// Lookup if the maximum pad size variable exists.
+	maxPadSize, exists := os.LookupEnv("MAXIMUM_PAD_SIZE")
+
+	// Check if this environment variable has bee nset
+	if !exists {
+		// Set the variable ourselves to the default string value
+		maxPadSize = "524288"
+	}
+
+	// Try and convert the string into an integer
+	rez, err := strconv.Atoi(maxPadSize)
+	// Check if the conversion has failed
+	if err != nil {
+		// Simply return the default
+		return 524288
+	}
+
+	// Return the resulting value
+	return rez
+}
+
 func GetCacheMapLimit() int {
 	cacheMapLimit, domainExists := os.LookupEnv("CACHE_MAP_LIMIT")
 

lib/objects/objects_post.go

@@ -1,10 +1,13 @@
 package objects
 
 import (
+	"errors"
 	"fmt"
 	"os"
 	"path/filepath"
 	"time"
+
+	"github.com/JustKato/FreePad/lib/helper"
 )
 
 type Post struct {
@@ -73,6 +76,11 @@ func GetPost(fileName string) Post {
 
 func WritePost(p Post) error {
 
+	maximumPadSize := helper.GetMaximumPadSize()
+	if len(p.Content) > maximumPadSize {
+		return errors.New("The pad is too big, please limit to the maximum of " + fmt.Sprint(maximumPadSize) + " characters")
+	}
+
 	// Get the base storage directory and make sure it exists
 	storageDir := getStorageDirectory()
 

lib/routes/routes_home.go

@@ -23,6 +23,9 @@ func HomeRoutes(router *gin.Engine) {
 		// Get the post we are looking for.
 		postName := c.Param("post")
 
+		// Get the maximum pad size, so that we may notify the client-side to match server-side
+		maximumPadSize := helper.GetMaximumPadSize()
+
 		// Sanitize the postName
 		newPostName, err := url.QueryUnescape(postName)
 		if err == nil {
@@ -33,10 +36,11 @@ func HomeRoutes(router *gin.Engine) {
 		post := objects.GetPost(postName)
 
 		c.HTML(200, "page.html", gin.H{
-			"title":         postName,
-			"post_content":  post.Content,
-			"last_modified": post.LastModified,
-			"domain_base":   helper.GetDomainBase(),
+			"title":          postName,
+			"post_content":   post.Content,
+			"maximumPadSize": maximumPadSize,
+			"last_modified":  post.LastModified,
+			"domain_base":    helper.GetDomainBase(),
 		})
 	})