From f0657be289575a17b94c8cdcb9f6e11b923c75f1 Mon Sep 17 00:00:00 2001
From: Gergely Koloszar <gergely.koloszar@gmail.com>
Date: Thu, 16 Oct 2025 20:50:42 +0200
Subject: [PATCH 1/7] Add availability checker for remote services based on
 ping and timeout

---
 dzgui.sh | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/dzgui.sh b/dzgui.sh
index 33fb0d1..8585251 100755
--- a/dzgui.sh
+++ b/dzgui.sh
@@ -493,6 +493,22 @@ stale_symlinks(){
         unlink "$l"
     done
 }
+
+check_availability() {
+    if [[ -z $1 ]]; then
+        return 1
+    fi
+    local url=$1
+    local timeout_sec="3"
+    if [[ $2 ]]; then
+        timeout_sec=$2
+    fi
+    if ! ping -w "$timeout_sec" "$url"; then
+        logger WARN "Failed to reach $url, service may be down."
+        return 1
+    fi
+}
+
 local_latlon(){
     if [[ -z $(command -v dig) ]]; then
         local local_ip=$(curl -Ls "https://ipecho.net/plain")

From 83552f833cf89c0356dc8c7215ca46a3dfa4c7c3 Mon Sep 17 00:00:00 2001
From: Gergely Koloszar <gergely.koloszar@gmail.com>
Date: Thu, 16 Oct 2025 20:51:46 +0200
Subject: [PATCH 2/7] Add availability checks for local_latlon function

---
 dzgui.sh | 19 +++++++++++++++----
 1 file changed, 15 insertions(+), 4 deletions(-)

diff --git a/dzgui.sh b/dzgui.sh
index 8585251..f6666bb 100755
--- a/dzgui.sh
+++ b/dzgui.sh
@@ -511,19 +511,30 @@ check_availability() {
 
 local_latlon(){
     if [[ -z $(command -v dig) ]]; then
-        local local_ip=$(curl -Ls "https://ipecho.net/plain")
+        local url_ipecho="https://ipecho.net/plain"
+        if ! check_availability "ipecho.net"; then
+            logger WARN "Failed to get external ip address, ipecho.net service may be down."
+            return 1
+        fi
+        local local_ip=$(curl -Ls "$url_ipecho")
     else
+        # todo : implement checking remote
         local local_ip=$(dig -4 +short myip.opendns.com @resolver1.opendns.com)
     fi
-    local url="http://ip-api.com/json/$local_ip"
-    local res=$(curl -Ls "$url" | jq -r '"\(.lat)\n\(.lon)"')
+    local url_ip_api="http://ip-api.com/json/$local_ip"
+    if ! check_availability "ip-api.com"; then
+        logger WARN "Failed to get local coordinates, ip-api.com service may be down."
+        return 1
+    fi
+    local res=$(curl -Ls "$url_ip_api" | jq -r '"\(.lat)\n\(.lon)"')
     if [[ -z "$res" ]]; then
         logger WARN "Failed to get local coordinates"
         return 1
     fi
     echo "$res" > "$coords_file"
 }
-lock(){
+
+lock
     [[ ! -f $lock_file ]] && touch $lock_file
     local pid=$(cat $lock_file)
     ps -p $pid -o pid= >/dev/null 2>&1

From d6223e54b0d457b37177a97dc1720d6e76d9728b Mon Sep 17 00:00:00 2001
From: Gergely Koloszar <gergely.koloszar@gmail.com>
Date: Thu, 16 Oct 2025 20:53:14 +0200
Subject: [PATCH 3/7] Fix unintended deletion

---
 dzgui.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/dzgui.sh b/dzgui.sh
index f6666bb..bd613cf 100755
--- a/dzgui.sh
+++ b/dzgui.sh
@@ -534,7 +534,7 @@ local_latlon(){
     echo "$res" > "$coords_file"
 }
 
-lock
+lock(){
     [[ ! -f $lock_file ]] && touch $lock_file
     local pid=$(cat $lock_file)
     ps -p $pid -o pid= >/dev/null 2>&1

From 6aa1ec4201762924f91b30a23131ea9fe470039b Mon Sep 17 00:00:00 2001
From: aclist <92275929+aclist@users.noreply.github.com>
Date: Fri, 17 Oct 2025 04:20:13 +0900
Subject: [PATCH 4/7] fix: early abort if local coords are missing

---
 helpers/funcs | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/helpers/funcs b/helpers/funcs
index e8f35ef..4b65df6 100755
--- a/helpers/funcs
+++ b/helpers/funcs
@@ -369,6 +369,10 @@ local_latlon(){
 get_dist(){
     shift
     local given_ip="$1"
+    if [[ ! -f $_cache_coords ]]; then
+        printf "Unknown"
+        return
+    fi
     readarray -t coords < "$_cache_coords"
     readarray -t n < <(<<< "$given_ip" awk 'BEGIN{RS="."}{$1=$1}1')
 

From 239a82876ea5f56d581a9317b5467d0f38b5dbb7 Mon Sep 17 00:00:00 2001
From: Gergely Koloszar <gergely.koloszar@gmail.com>
Date: Wed, 22 Oct 2025 17:20:56 +0200
Subject: [PATCH 5/7] fix: silence ping while checking remote urls

---
 dzgui.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/dzgui.sh b/dzgui.sh
index bd613cf..133ae41 100755
--- a/dzgui.sh
+++ b/dzgui.sh
@@ -503,7 +503,7 @@ check_availability() {
     if [[ $2 ]]; then
         timeout_sec=$2
     fi
-    if ! ping -w "$timeout_sec" "$url"; then
+    if ! ping -w "$timeout_sec" "$url" > /dev/null; then
         logger WARN "Failed to reach $url, service may be down."
         return 1
     fi

From cbc131028f2a1058810402ed0cc502be2279be25 Mon Sep 17 00:00:00 2001
From: aclist <92275929+aclist@users.noreply.github.com>
Date: Thu, 23 Oct 2025 08:22:20 +0900
Subject: [PATCH 6/7] chore: capitalize TODO for syntax highlighting

---
 dzgui.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/dzgui.sh b/dzgui.sh
index 133ae41..7b080ad 100755
--- a/dzgui.sh
+++ b/dzgui.sh
@@ -518,7 +518,7 @@ local_latlon(){
         fi
         local local_ip=$(curl -Ls "$url_ipecho")
     else
-        # todo : implement checking remote
+        # TODO : implement checking remote
         local local_ip=$(dig -4 +short myip.opendns.com @resolver1.opendns.com)
     fi
     local url_ip_api="http://ip-api.com/json/$local_ip"

From cc73f23c1c90c59cafdb1aa43d80d751a64409c6 Mon Sep 17 00:00:00 2001
From: Gergely Koloszar <gergely.koloszar@gmail.com>
Date: Fri, 24 Oct 2025 12:35:56 +0000
Subject: [PATCH 7/7] fix: suppress ping stderr output

---
 dzgui.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/dzgui.sh b/dzgui.sh
index 7b080ad..0e609a0 100755
--- a/dzgui.sh
+++ b/dzgui.sh
@@ -503,7 +503,7 @@ check_availability() {
     if [[ $2 ]]; then
         timeout_sec=$2
     fi
-    if ! ping -w "$timeout_sec" "$url" > /dev/null; then
+    if ! ping -w "$timeout_sec" "$url" > /dev/null 2>&1; then
         logger WARN "Failed to reach $url, service may be down."
         return 1
     fi