Propery determine the http-upload max-file-size.

httpupload.go

@@ -90,8 +90,9 @@ func httpUpload(client *xmpp.Client, jserver string, filePath string) string {
 
 	var iqDiscoItemsXML IQDiscoItemsType
 	var iqDiscoInfoXML IQDiscoInfoType
-	var uploadComponent string
 	var iqHttpUploadSlotXML IQHttpUploadSlot
+	var uploadComponent string
+	var maxFileSize int64
 
 	// Get file size
 	fileInfo, err := os.Stat(filePath)
@@ -158,18 +159,28 @@ func httpUpload(client *xmpp.Client, jserver string, filePath string) string {
 		}
 
 	}
-
 	if uploadComponent == "" {
 		log.Fatal("No http upload component found.")
 	}
-	maxFileSize, err := strconv.ParseInt(iqDiscoInfoXML.X[1].Field[1].Value, 10, 64)
-	if err != nil {
-		log.Fatal("Error while checking server maximum http upload file size.")
+	for _, r := range iqDiscoInfoXML.X {
+		for _, t := range r.Field {
+			if t.Var == "max-file-size" {
+				maxFileSize, err = strconv.ParseInt(t.Value, 10, 64)
+				if err != nil {
+					log.Fatal("Error while checking server maximum http upload file size.")
+				}
+			}
+		}
 	}
-	if fileSize > maxFileSize {
-		log.Fatal("File size " + strconv.FormatInt(fileSize/1024/1024, 10) +
-		" MB is larger than the maximum file size allowed (" +
-		strconv.FormatInt(maxFileSize/1024/1024, 10) + " MB).")
+	// Check if the file size doesn't exceed the maximum file size of the http upload
+	// component if a maximum file size is reported, if not just continue and hope for
+	// the best.
+	if maxFileSize != 0 {
+		if fileSize > maxFileSize {
+			log.Fatal("File size " + strconv.FormatInt(fileSize/1024/1024, 10) +
+				" MB is larger than the maximum file size allowed (" +
+				strconv.FormatInt(maxFileSize/1024/1024, 10) + " MB).")
+		}
 	}
 
 	// Request http upload slot