Harden xTeVe update flow to prevent mapping deactivation

* Sync latest dockerfile changes; edits for build to run

* add comment to explain

* fix typo

Dockerfile

@@ -3,7 +3,7 @@ FROM alpine:latest
 LABEL maintainer="taylorbourne taylorbourne@me.com.com"
 
 # Install S6 overlay
-ARG S6_OVERLAY_RELEASE=https://github.com/just-containers/s6-overlay/releases/latest/download/s6-overlay-amd64.tar.gz
+ARG S6_OVERLAY_RELEASE=https://github.com/just-containers/s6-overlay/releases/download/v2.2.0.3/s6-overlay-x86.tar.gz
 ENV S6_OVERLAY_RELEASE=${S6_OVERLAY_RELEASE}
 
 ADD ${S6_OVERLAY_RELEASE} /tmp/s6overlay.tar.gz
@@ -32,7 +32,7 @@ RUN ln -snf /usr/share/zoneinfo/$TZ /etc/localtime && echo $TZ > /etc/timezone
 RUN wget https://github.com/xteve-project/xTeVe-Downloads/raw/master/xteve_linux_amd64.zip -O temp.zip; unzip temp.zip -d /usr/bin/; rm temp.zip
 
 # Add lazystream
-RUN wget https://github.com/tarkah/lazystream/releases/download/v1.11.8/lazystream-v1.11.8-x86_64-unknown-linux-musl.tar.gz -O lazystream.tar.gz; \
+RUN wget https://github.com/tarkah/lazystream/releases/download/v1.12.1/lazystream-v1.12.1-x86_64-unknown-linux-musl.tar.gz -O lazystream.tar.gz; \
     tar xzf lazystream.tar.gz; \
     mv ././lazystream /usr/bin/lazystream; \
     rm lazystream.tar.gz; \
@@ -78,7 +78,8 @@ ENV PUID=1000 \
     embyApiKey= \
     embyID= \
     use_plexAPI=no \
-    trim_xmltv=yes
+    trim_xmltv=no \
+    hostOverride=
 
 # Expose Port
 EXPOSE ${XTEVE_PORT}

Dockerfile-aarch64

@@ -3,7 +3,7 @@ FROM arm64v8/alpine:latest
 LABEL maintainer="taylorbourne taylorbourne@me.com.com"
 
 # Install S6 overlay
-ARG S6_OVERLAY_RELEASE=https://github.com/just-containers/s6-overlay/releases/latest/download/s6-overlay-aarch64.tar.gz
+ARG S6_OVERLAY_RELEASE=https://github.com/just-containers/s6-overlay/releases/download/v2.2.0.3/s6-overlay-aarch64.tar.gz
 ENV S6_OVERLAY_RELEASE=${S6_OVERLAY_RELEASE}
 
 ADD ${S6_OVERLAY_RELEASE} /tmp/s6overlay.tar.gz
@@ -25,14 +25,15 @@ RUN apk upgrade --update --no-cache \
     gnutls-utils
 
 # pi4 library to run lazystream: https://github.com/ljfranklin/alpine-pkg-glibc/releases/tag/2.32-r0-arm64
+# force needed due to bug: https://github.com/sgerrand/alpine-pkg-glibc/issues/185
 RUN wget https://github.com/ljfranklin/alpine-pkg-glibc/releases/download/2.32-r0-arm64/glibc-2.32-r0.apk
-RUN apk add --allow-untrusted glibc-2.32-r0.apk
+RUN apk add --allow-untrusted --force-overwrite glibc-2.32-r0.apk
 
 RUN wget https://github.com/ljfranklin/alpine-pkg-glibc/releases/download/2.32-r0-arm64/glibc-bin-2.32-r0.apk
-RUN apk add --allow-untrusted glibc-bin-2.32-r0.apk
+RUN apk add --allow-untrusted --force-overwrite glibc-bin-2.32-r0.apk
 
 RUN wget https://github.com/ljfranklin/alpine-pkg-glibc/releases/download/2.32-r0-arm64/glibc-i18n-2.32-r0.apk
-RUN apk add --allow-untrusted glibc-i18n-2.32-r0.apk
+RUN apk add --allow-untrusted --force-overwrite glibc-i18n-2.32-r0.apk
 
 # Update Timezone
 ENV TZ=America/Los_Angeles
@@ -42,7 +43,7 @@ RUN ln -snf /usr/share/zoneinfo/$TZ /etc/localtime && echo $TZ > /etc/timezone
 RUN wget https://github.com/xteve-project/xTeVe-Downloads/raw/master/xteve_linux_arm64.zip -O temp.zip; unzip temp.zip -d /usr/bin/; rm temp.zip
 
 # Add lazystream
-RUN wget https://github.com/tarkah/lazystream/releases/download/v1.11.6/lazystream-v1.11.6-aarch64-unknown-linux-gnu.tar.gz -O lazystream.tar.gz; \
+RUN wget https://github.com/tarkah/lazystream/releases/download/v1.12.1/lazystream-v1.12.1-aarch64-unknown-linux-gnu.tar.gz -O lazystream.tar.gz; \
     tar xzf lazystream.tar.gz; \
     mv ././lazystream /usr/bin/lazystream; \
     rm lazystream.tar.gz; \
@@ -88,7 +89,8 @@ ENV PUID=1000 \
     embyApiKey= \
     embyID= \
     use_plexAPI=no \
-    trim_xmltv=yes
+    trim_xmltv=no \
+    hostOverride=
 
 # Expose Port
 EXPOSE ${XTEVE_PORT}

README.md

@@ -42,10 +42,6 @@ or see [docker-compose.yml](docker-compose.yml) for an example docker-compose se
 
 Defaults & behavior can be changed through environment variables. `sample.env` should be renamed to `.env` and supplied through the `--env-file` docker run option. The `.env` file can also be picked up if using this in a `docker compose` setup.
 
-### IMPORTANT
-
-You _MUST_ set the environment variable `lazyStreamHost` otherwise LazyStream will _not_ work.
-
 ## Cron schedule
 
 By default, the cron job is scheduled to run every hour. A custom cron schedule can be specified by renaming the `sample_cron.txt` file in the `/config` volume to `cron.txt` and editing the schedule. Make sure to restart your container to take effect.

root/cronjob.sh

@@ -9,6 +9,69 @@ function prepend() {
 
 exec 1> >(prepend "[cronjob.sh] ")
 
+LOCK_DIR=/tmp/xteve/.cronjob.lock
+mkdir -p /tmp/xteve
+
+if ! mkdir "$LOCK_DIR" 2>/dev/null; then
+	echo "Another cronjob instance is already running, exiting."
+	exit 0
+fi
+
+function cleanup() {
+	rmdir "$LOCK_DIR" >/dev/null 2>&1 || true
+}
+trap cleanup EXIT
+
+function post_xteve_cmd() {
+	local cmd="$1"
+	local retries="${2:-5}"
+	local retry_sleep="${3:-2}"
+	local response=""
+
+	for ((attempt=1; attempt<=retries; attempt++)); do
+		response=$(curl -sS --max-time 120 -X POST -d "{\"cmd\":\"${cmd}\"}" "http://127.0.0.1:${XTEVE_PORT}/api/" 2>&1)
+		if echo "$response" | grep -q '"status"[[:space:]]*:[[:space:]]*true'; then
+			echo "xTeVe API ${cmd}: accepted"
+			return 0
+		fi
+
+		echo "xTeVe API ${cmd}: attempt ${attempt}/${retries} failed (${response})"
+		sleep "$retry_sleep"
+	done
+
+	echo "xTeVe API ${cmd}: failed after ${retries} attempts"
+	return 1
+}
+
+function xteve_internal_update_due_now() {
+	if [ "${skip_xteve_api_when_internal_update:-yes}" != "yes" ]; then
+		return 1
+	fi
+
+	if [ ! -f /xteve/settings.json ]; then
+		return 1
+	fi
+
+	local now_hhmm
+	now_hhmm=$(date +"%H%M")
+
+	local update_values
+	update_values=$(tr -d '\n' < /xteve/settings.json | sed -n 's/.*"update"[[:space:]]*:[[:space:]]*\[\([^]]*\)\].*/\1/p' | tr -d ' "')
+	if [ -z "$update_values" ]; then
+		return 1
+	fi
+
+	IFS=',' read -r -a updates <<< "$update_values"
+	for update_time in "${updates[@]}"; do
+		if [ "$update_time" = "$now_hhmm" ]; then
+			echo "xTeVe internal update is scheduled for ${now_hhmm}; skipping wrapper API update to avoid overlap."
+			return 0
+		fi
+	done
+
+	return 1
+}
+
 echo "Running scripts..."
 
 ### Generate playlist and XML data from Lazystream
@@ -19,6 +82,7 @@ if [ "$use_lazystream" = "yes" ]; then
 	if [ "$trim_xmltv" = "yes" ]; then args+=("--trim"); fi
 	if [ ! -z ${quality} ]; then args+=("--quality" "$quality"); fi
 	if [ "$cdn" = "l3c" ]; then args+=("--cdn" "l3c"); fi
+	if [ ! -z "$hostOverride" ]; then args+=("--host" "$hostOverride"); fi
 
 	if [ "$include_nhl" = "yes" ]; then
 		echo "Running Lazystream (NHL $quality via $cdn)..."
@@ -29,7 +93,11 @@ if [ "$use_lazystream" = "yes" ]; then
 		nhl_args+=("--channel-prefix")
 		nhl_args+=("Lazystream: NHL")
 		nhl_args+=("--start-channel")
-		nhl_args+=("1000")
+		if [ -z "$nhl_start_channel" ]; then
+			nhl_args+=("1000")
+		else
+			nhl_args+=("$nhl_start_channel")
+		fi
 		nhl_args+=("/playlists/lazystream/lazystream-nhl")
 
 		if [ "$nhl_exclude_home" = "yes" ]; 	 then nhl_args+=("--exclude-feeds" "HOME"); fi
@@ -38,7 +106,9 @@ if [ "$use_lazystream" = "yes" ]; then
 		if [ "$nhl_exclude_french" = "yes" ]; 	 then nhl_args+=("--exclude-feeds" "FRENCH"); fi
 		if [ "$nhl_exclude_composite" = "yes" ]; then nhl_args+=("--exclude-feeds" "COMPOSITE"); fi
 
+		set -x
 		lazystream generate xmltv "${args[@]}" "${nhl_args[@]}"
+		set +x
 	fi
 	if [ "$include_mlb" = "yes" ]; then
 		echo "Running Lazystream (MLB $quality via $cdn)..."
@@ -51,7 +121,11 @@ if [ "$use_lazystream" = "yes" ]; then
 		mlb_args+=("--channel-prefix")
 		mlb_args+=("Lazystream: MLB")
 		mlb_args+=("--start-channel")
-		mlb_args+=("2000")
+		if [ -z "$mlb_start_channel" ]; then
+			mlb_args+=("2000")
+		else
+			mlb_args+=("$mlb_start_channel")
+		fi
 		mlb_args+=("/playlists/lazystream/lazystream-mlb")
 
 		if [ "$mlb_exclude_home" = "yes" ]; 	 then mlb_args+=("--exclude-feeds" "HOME"); fi
@@ -59,7 +133,9 @@ if [ "$use_lazystream" = "yes" ]; then
 		if [ "$mlb_exclude_national" = "yes" ];  then mlb_args+=("--exclude-feeds" "NATIONAL"); fi
 		if [ "$mlb_exclude_composite" = "yes" ]; then mlb_args+=("--exclude-feeds" "COMPOSITE"); fi
 
+		set -x
 		lazystream generate xmltv "${args[@]}" "${mlb_args[@]}"
+		set +x
 	fi
 fi
 
@@ -81,13 +157,23 @@ sleep 1
 
 # update xteve via API
 if [ "$use_xTeveAPI" = "yes" ]; then
-	echo "Updating xTeVe..."
-	curl -s -X POST -d '{"cmd":"update.m3u"}' http://127.0.0.1:$XTEVE_PORT/api/
-	sleep 1
-	curl -s -X POST -d '{"cmd":"update.xmltv"}' http://127.0.0.1:$XTEVE_PORT/api/
-	sleep 1
-	curl -s -X POST -d '{"cmd":"update.xepg"}' http://127.0.0.1:$XTEVE_PORT/api/
-	sleep 1
+	if xteve_internal_update_due_now; then
+		echo "Skipping xTeVe API update in cronjob."
+	else
+		echo "Updating xTeVe..."
+		if post_xteve_cmd "update.m3u"; then
+			sleep "${xteve_m3u_settle_seconds:-2}"
+			if post_xteve_cmd "update.xmltv"; then
+				sleep "${xteve_xmltv_settle_seconds:-20}"
+				post_xteve_cmd "update.xepg"
+				sleep "${xteve_xepg_settle_seconds:-2}"
+			else
+				echo "Skipping update.xepg because update.xmltv failed."
+			fi
+		else
+			echo "Skipping remaining xTeVe API updates because update.m3u failed."
+		fi
+	fi
 fi
 
 # update Emby via API
@@ -104,10 +190,19 @@ fi
 # update Plex via API
 if [ "$use_plexAPI" = "yes" ]; then
 	echo "Updating Plex..."
-	if [ -z "$plexUpdateURL" ]; then
+	if [ -z "${plexUpdateURL//[[:space:]]/}" ]; then
 		echo "no Plex credentials provided"
+	elif ! echo "$plexUpdateURL" | grep -Eq '^https?://[^[:space:]]+$'; then
+		echo "invalid plexUpdateURL, expected a plain http(s) URL. Skipping Plex update."
 	else
-		curl -s -X POST "$plexUpdateURL"
+		# get protocol
+		proto="$(echo $plexUpdateURL | grep :// | sed -e's,^\(.*://\).*,\1,g')"
+		# remove the protocol
+		url="$(echo ${plexUpdateURL/$proto/})"
+		# extract the host
+		plexHostPort="$(echo ${url/} | cut -d/ -f1)"
+
+		curl --location --request POST "$plexUpdateURL" -H "authority: $plexHostPort" -H "content-length: 0" -H "pragma: no-cache" -H "cache-control: no-cache" -H "sec-ch-ua: 'Google Chrome';v='95', 'Chromium';v='95', ';Not A Brand';v='99'" -H "accept: text/plain, */*; q=0.01" -H "x-requested-with: XMLHttpRequest" -H "accept-language: en" -H "sec-ch-ua-mobile: ?0" -H "user-agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/95.0.4638.69 Safari/537.36" -H "sec-ch-ua-platform: 'macOS'" -H "origin: http://$plexHostPort" -H "sec-fetch-site: same-origin" -H "sec-fetch-mode: cors" -H "sec-fetch-dest: empty" -H "referer: http://$plexHostPort/web/index.html"
 		sleep 1
 	fi
 fi

root/defaults/sample_cron.txt

@@ -1,4 +1,4 @@
-printf '0  *  *  *  *  /cronjob.sh' > /etc/crontabs/root
+printf '5  *  *  *  *  /cronjob.sh' > /etc/crontabs/root
 ### Remove this line and everything beneath it ###
 ### Edit the above cron expression, rename this file to cron.txt, and restart the container.
 ### If no cron.txt is found the cronjob will run every hour

root/etc/cont-init.d/50-update-hosts

@@ -10,7 +10,10 @@ exec 1> >(prepend "[update-hosts] ")
 
 
 # Update hosts file
-export IP=$(getent ahostsv4 "$lazyStreamHost" | awk '{ print $1 }' | head -1)
+if [ ! -z "$hostOverride" ]; then lazystream_host="$hostOverride"; else lazystream_host=$(lazystream host); fi
+echo "Using host ${lazystream_host}"
+
+export IP=$(getent ahostsv4 $(echo $lazystream_host | sed -e 's/https*:\/\///g') | awk '{ print $1 }' | head -1)
 
 echo $IP playback.svcs.mlb.com >> /etc/hosts
 echo $IP mf.svc.nhl.com >> /etc/hosts

root/etc/crontabs/root

@@ -1 +1 @@
-0  *  *  *  *  /cronjob.sh
+5  *  *  *  *  /cronjob.sh

sample.env

@@ -7,26 +7,36 @@ PGID=1000
 ### Xteve Config
 XTEVE_PORT=34400
 use_xTeveAPI=yes
+# Skip wrapper-triggered xTeVe updates if the current time matches xTeVe's internal "update" schedule.
+skip_xteve_api_when_internal_update=yes
+# Wait times between wrapper xTeVe update stages. XMLTV delay helps avoid mapping against in-progress downloads.
+#xteve_m3u_settle_seconds=2
+#xteve_xmltv_settle_seconds=20
+#xteve_xepg_settle_seconds=2
 
 ### Lazystream Config
-# If trim_xmltv is set to no, both NHL and MLB will output 100 placeholder channels each.
-# Any unused channels will still display in your guide. Disable this feature if you have
-# any trouble with Plex/Emby/etc. guide data.
-trim_xmltv=yes
+# If trim_xmltv is set to yes, both NHL and MLB wont output 100 placeholder channels and
+# will instead only output the same number of channels as there are streams.
+# Enabling this feature may cause issues with xTeVe guide data.
+trim_xmltv=no
 use_lazystream=yes
 include_nhl=yes
+nhl_start_channel=1000
 #nhl_exclude_home=yes
 #nhl_exclude_away=yes
 #nhl_exclude_national=yes
 #nhl_exclude_french=yes
 #nhl_exclude_composite=yes
 include_mlb=yes
+mlb_start_channel=2000
 #mlb_exclude_home=yes
 #mlb_exclude_away=yes
 #mlb_exclude_national=yes
 #mlb_exclude_composite=yes
 cdn=akc
 #quality=720p60
+# This will override the default host used by lazystream. Use in case host changes.
+#hostOverride=http://yourhost.here
 
 ### Guide2go Config
 use_guide2go=no

xteve_lazystream.xml

@@ -172,7 +172,7 @@
   <Config Name="Path" Target="/playlists" Default="/mnt/user/appdata/xteve/playlists/" Mode="rw" Description="Container Path: /playlists" Type="Path" Display="always" Required="false" Mask="false">/mnt/user/appdata/xteve/playlists/</Config>
   <Config Name="Xteve API" Target="use_xTeveAPI" Default="yes" Mode="" Description="Container Variable: use_xTeveAPI" Type="Variable" Display="always" Required="false" Mask="false">yes</Config>
   <Config Name="Use Lazystream" Target="use_lazystream" Default="yes" Mode="" Description="Container Variable: use_lazystream" Type="Variable" Display="always" Required="false" Mask="false">yes</Config>
-  <Config Name="Lazystream Host" Target="lazystream_host" Default="" Mode="" Description="Container Variable: lazyStreamHost" Type="Variable" Display="always" Required="false" Mask="false"/>
+  <Config Name="Lazystream Host Override" Target="hostOverride" Default="" Mode="" Description="Container Variable: hostOverride" Type="Variable" Display="always" Required="false" Mask="false"/>
   <Config Name="Trim XMLTV" Target="trim_xmltv" Default="yes" Mode="" Description="Container Variable: trim_xmltv" Type="Variable" Display="always" Required="false" Mask="false">yes</Config>
   <Config Name="Include NHL" Target="include_nhl" Default="yes" Mode="" Description="Container Variable: include_nhl" Type="Variable" Display="always" Required="false" Mask="false">yes</Config>
   <Config Name="include MLB" Target="include_mlb" Default="yes" Mode="" Description="Container Variable: include_mlb" Type="Variable" Display="always" Required="false" Mask="false">yes</Config>