[Diagnostic] Introduced optional lxc install diagnostics via API call (#1801)

* Update build.func

* Update build.func

* Update build.func

* Update build.func

* Update build.func

* update build.func

* update build.func

* update build.func

* update build.func

* update build.func

* update build.func

* update build.func

* update build.func

misc/build.func

@@ -1,6 +1,7 @@
 # Copyright (c) 2021-2025 tteck
 # Author: tteck (tteckster)
 # Co-Author: MickLesk
+# Co-Author: michelroegl-brunner
 # License: MIT
 # https://github.com/community-scripts/ProxmoxVE/raw/main/LICENSE
 
@@ -9,6 +10,8 @@ variables() {
   var_install="${NSAPP}-install"     # sets the var_install variable by appending "-install" to the value of NSAPP.
   INTEGER='^[0-9]+([.][0-9]+)?$'     # it defines the INTEGER regular expression pattern.
   PVEHOST_NAME=$(hostname)           # gets the Proxmox Hostname and sets it to Uppercase
+  DIAGNOSTICS="yes"                  # sets the DIAGNOSTICS variable to "yes", used for the API call.
+  METHOD="default"                   # sets the METHOD variable to "default", used for the API call.
 }
 
 # This function sets various color variables using ANSI escape codes for formatting text in the terminal.
@@ -550,7 +553,6 @@ advanced_settings() {
     fi
   done
 
-
   if CT_ID=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set Container ID" 8 58 $NEXTID --title "CONTAINER ID" 3>&1 1>&2 2>&3); then
     if [ -z "$CT_ID" ]; then
       CT_ID="$NEXTID"
@@ -789,6 +791,116 @@ advanced_settings() {
   fi
 }
 
+post_to_api() {
+  local API_URL="http://api.community-scripts.org/upload"
+  local pve_version="not found"
+  pve_version=$(pveversion | awk -F'[/ ]' '{print $2}')
+
+  JSON_PAYLOAD=$(
+    cat <<EOF
+{
+    "ct_type": $CT_TYPE,
+    "disk_size": $DISK_SIZE,
+    "core_count": $CORE_COUNT,
+    "ram_size": $RAM_SIZE,
+    "verbose": "$VERBOSE",
+    "os_type": "$var_os",
+    "os_version": "$var_version",
+    "hn": "$HN",
+    "disableip6": "$DISABLEIP6",
+    "ssh": "$SSH",
+    "tags": "$TAGS",
+    "nsapp": "$NSAPP",
+    "method": "$METHOD",
+    "pve_version": "$pve_version"
+}
+EOF
+  )
+
+  RESPONSE=$(curl -s -o response.txt -w "%{http_code}" -L -X POST "$API_URL" --post301 --post302 \
+    -H "Content-Type: application/json" \
+    -d "$JSON_PAYLOAD")
+
+  if [ "$RESPONSE" -ne 201 ] && [ "$RESPONSE" -ne 302 ]; then
+    msg_error "API request failed with HTTP code $RESPONSE"
+  fi
+
+}
+
+diagnostics_check(){
+  if ! [ -d "/usr/local/community-scripts" ]; then
+      mkdir -p /usr/local/community-scripts
+    fi
+
+    if ! [ -f "/usr/local/community-scripts/diagnostics" ]; then
+      if (whiptail --backtitle "Proxmox VE Helper Scripts" --title "DIAGNOSTICS" --yesno "Send Diagnostics of LXC Installation?\n\n(This only transmits data without user data, just RAM, CPU, LXC name, ...)" 10 58); then
+          cat <<EOF>/usr/local/community-scripts/diagnostics
+DIAGNOSTICS=yes
+
+#This file is used to store the diagnostics settings for the Community-Scripts API.
+#https://github.com/community-scripts/ProxmoxVE/discussions/1836
+#Your diagnostics will be sent to the Community-Scripts API for troubleshooting/statistical purposes.
+#You can review the data at https://community-scripts.github.io/ProxmoxVE/data
+#If you do not wish to send diagnostics, please set the variable 'DIAGNOSTICS' to "no" in /usr/local/community-scripts/diagnostics, or use the menue.
+#This will disable the diagnostics feature.
+#To send diagnostics, set the variable 'DIAGNOSTICS' to "yes" in /usr/local/community-scripts/diagnostics, or use the menue.
+#This will enable the diagnostics feature.
+#The following information will be sent:
+#"ct_type"
+#"disk_size"
+#"core_count"
+#"ram_size"
+#"verbose"
+#"os_type"
+#"os_version"
+#"hn"
+#"disableip6"
+#"ssh"
+#"tags"
+#"nsapp"
+#"method"
+#"pve_version"
+#If you have any concerns, please review the source code at /misc/build.func
+EOF
+      DIAGNOSTICS="yes"
+    else
+      cat <<EOF >/usr/local/community-scripts/diagnostics
+DIAGNOSTICS=no
+
+#This file is used to store the diagnostics settings for the Community-Scripts API.
+#https://github.com/community-scripts/ProxmoxVE/discussions/1836
+#Your diagnostics will be sent to the Community-Scripts API for troubleshooting/statistical purposes.
+#You can review the data at https://community-scripts.github.io/ProxmoxVE/data
+#If you do not wish to send diagnostics, please set the variable 'DIAGNOSTICS' to "no" in /usr/local/community-scripts/diagnostics, or use the menue.
+#This will disable the diagnostics feature.
+#To send diagnostics, set the variable 'DIAGNOSTICS' to "yes" in /usr/local/community-scripts/diagnostics, or use the menue.
+#This will enable the diagnostics feature.
+#The following information will be sent:
+#"ct_type"
+#"disk_size"
+#"core_count"
+#"ram_size"
+#"verbose"
+#"os_type"
+#"os_version"
+#"hn"
+#"disableip6"
+#"ssh"
+#"tags"
+#"nsapp"
+#"method"
+#"pve_version"
+#If you have any concerns, please review the source code at /misc/build.func
+EOF
+      DIAGNOSTICS="no"
+    fi
+  else
+    DIAGNOSTICS=$(awk -F '=' '/^DIAGNOSTICS/ {print $2}' /usr/local/community-scripts/diagnostics)
+
+  fi
+
+}
+
 install_script() {
   pve_check
   shell_check
@@ -796,6 +908,7 @@ install_script() {
   arch_check
   ssh_check
   maxkeys_check
+  diagnostics_check
 
   if systemctl is-active -q ping-instances.service; then
     systemctl -q stop ping-instances.service
@@ -804,12 +917,14 @@ install_script() {
   timezone=$(cat /etc/timezone)
   header_info
   while true; do
+
     CHOICE=$(whiptail --backtitle "Proxmox VE Helper Scripts" --title "SETTINGS" --menu "Choose an option:" \
-      12 50 4 \
+      12 50 5 \
       "1" "Default Settings" \
       "2" "Default Settings (with verbose)" \
       "3" "Advanced Settings" \
-      "4" "Exit" --nocancel --default-item "1" 3>&1 1>&2 2>&3)
+      "4" "Diagnostic Settings" \
+      "5" "Exit" --nocancel --default-item "1" 3>&1 1>&2 2>&3)
 
     if [ $? -ne 0 ]; then
       echo -e "${CROSS}${RD} Menu canceled. Exiting.${CL}"
@@ -821,6 +936,7 @@ install_script() {
       header_info
       echo -e "${DEFAULT}${BOLD}${BL}Using Default Settings on node $PVEHOST_NAME${CL}"
       VERB="no"
+      METHOD="default"
       base_settings "$VERB"
       echo_default
       break
@@ -829,6 +945,7 @@ install_script() {
       header_info
       echo -e "${DEFAULT}${BOLD}${BL}Using Default Settings on node $PVEHOST_NAME (${SEARCH}Verbose)${CL}"
       VERB="yes"
+      METHOD="default"
       base_settings "$VERB"
       echo_default
       break
@@ -836,10 +953,28 @@ install_script() {
     3)
       header_info
       echo -e "${ADVANCED}${BOLD}${RD}Using Advanced Settings on node $PVEHOST_NAME${CL}"
+      METHOD="advanced"
       advanced_settings
       break
       ;;
      4)
+        if [[ $DIAGNOSTICS == "yes" ]]; then
+          if whiptail --backtitle "Proxmox VE Helper Scripts" --title "DIAGNOSTICS SETTINGS" --yesno "Send Diagnostics of LXC Installation?\n\nCurrent setting: ${DIAGNOSTICS}" 10 58 \
+          --yes-button "No" --no-button "Back" ; then
+            DIAGNOSTICS="no"
+            sed -i 's/^DIAGNOSTICS=.*/DIAGNOSTICS=no/' /usr/local/community-scripts/diagnostics
+            whiptail --backtitle "Proxmox VE Helper Scripts" --title "DIAGNOSTICS SETTINGS" --msgbox "Diagnostics settings changed to ${DIAGNOSTICS}." 8 58
+          fi
+        else
+          if whiptail --backtitle "Proxmox VE Helper Scripts" --title "DIAGNOSTICS SETTINGS" --yesno "Send Diagnostics of LXC Installation?\n\nCurrent setting: ${DIAGNOSTICS}" 10 58 \
+          --yes-button "Yes" --no-button "Back" ; then
+            DIAGNOSTICS="yes"
+            sed -i 's/^DIAGNOSTICS=.*/DIAGNOSTICS=yes/' /usr/local/community-scripts/diagnostics
+            whiptail --backtitle "Proxmox VE Helper Scripts" --title "DIAGNOSTICS SETTINGS" --msgbox "Diagnostics settings changed to ${DIAGNOSTICS}." 8 58
+          fi
+        fi        
+        ;;
+    5)
       echo -e "${CROSS}${RD}Exiting.${CL}"
       exit 0
       ;;
@@ -919,6 +1054,9 @@ build_container() {
     FEATURES="nesting=1"
   fi
 
+  if [[ $DIAGNOSTICS == "yes" ]]; then
+    post_to_api
+  fi
 
   TEMP_DIR=$(mktemp -d)
   pushd $TEMP_DIR >/dev/null
@@ -1027,7 +1165,8 @@ description() {
   IP=$(pct exec "$CTID" ip a s dev eth0 | awk '/inet / {print $2}' | cut -d/ -f1)
 
   # Generate LXC Description
-  DESCRIPTION=$(cat <<EOF
+  DESCRIPTION=$(
+    cat <<EOF
 <div align='center'>
   <a href='https://Helper-Scripts.com' target='_blank' rel='noopener noreferrer'>
     <img src='https://raw.githubusercontent.com/community-scripts/ProxmoxVE/main/misc/images/logo-81x112.png' alt='Logo' style='width:81px;height:112px;'/>