Add out of memory warning

rootfs/standard/usr/share/mynode/mynode_config.sh

@@ -51,8 +51,8 @@ QUICKSYNC_TORRENT_URL="https://mynodebtc.com/device/blockchain.tar.gz.torrent"
 QUICKSYNC_TORRENT_BETA_URL="https://mynodebtc.com/device/blockchain_beta.tar.gz.torrent"
 QUICKSYNC_UPLOAD_RATE_FILE="/mnt/hdd/mynode/settings/quicksync_upload_rate"
 QUICKSYNC_BACKGROUND_DOWNLOAD_RATE_FILE="/mnt/hdd/mynode/settings/quicksync_background_download_rate"
-LATEST_VERSION_URL="http://www.mynodebtc.com/device_api/get_latest_version.php?type=${DEVICE_TYPE}"
+LATEST_VERSION_URL="https://www.mynodebtc.com/device_api/get_latest_version.php?type=${DEVICE_TYPE}"
-LATEST_BETA_VERSION_URL="http://www.mynodebtc.com/device_api/get_latest_version.php?type=${DEVICE_TYPE}&beta=1"
+LATEST_BETA_VERSION_URL="https://www.mynodebtc.com/device_api/get_latest_version.php?type=${DEVICE_TYPE}&beta=1"
 UPLOADER_FILE="/mnt/hdd/mynode/settings/uploader"
 UPGRADE_ERROR_FILE="/mnt/hdd/mynode/settings/upgrade_error"
 LND_BACKUP_FOLDER="/home/bitcoin/lnd_backup/"
@@ -84,10 +84,10 @@ if [ -f $PRODUCT_KEY_FILE ]; then
     fi
 fi
 
-UPGRADE_DOWNLOAD_URL="http://www.mynodebtc.com/device_api/download_latest_standard.php?type=${DEVICE_TYPE}&product_key=${PRODUCT_KEY}"
+UPGRADE_DOWNLOAD_URL="https://www.mynodebtc.com/device_api/download_latest_standard.php?type=${DEVICE_TYPE}&product_key=${PRODUCT_KEY}"
-UPGRADE_DOWNLOAD_SIGNATURE_URL="http://www.mynodebtc.com/device_api/download_latest_standard.php?type=${DEVICE_TYPE}&product_key=${PRODUCT_KEY}&hash=1"
+UPGRADE_DOWNLOAD_SIGNATURE_URL="https://www.mynodebtc.com/device_api/download_latest_standard.php?type=${DEVICE_TYPE}&product_key=${PRODUCT_KEY}&hash=1"
-UPGRADE_BETA_DOWNLOAD_URL="http://www.mynodebtc.com/device_api/download_latest_standard.php?type=${DEVICE_TYPE}&product_key=${PRODUCT_KEY}&beta=1"
+UPGRADE_BETA_DOWNLOAD_URL="https://www.mynodebtc.com/device_api/download_latest_standard.php?type=${DEVICE_TYPE}&product_key=${PRODUCT_KEY}&beta=1"
-UPGRADE_BETA_DOWNLOAD_SIGNATURE_URL="http://www.mynodebtc.com/device_api/download_latest_standard.php?type=${DEVICE_TYPE}&product_key=${PRODUCT_KEY}&beta=1&hash=1"
+UPGRADE_BETA_DOWNLOAD_SIGNATURE_URL="https://www.mynodebtc.com/device_api/download_latest_standard.php?type=${DEVICE_TYPE}&product_key=${PRODUCT_KEY}&beta=1&hash=1"
 UPGRADE_PUBKEY_URL="https://raw.githubusercontent.com/mynodebtc/pubkey/master/mynode_release.pub"
 
 # Update settings for other devices

rootfs/standard/var/www/mynode/mynode.py

@@ -612,6 +612,8 @@ def index():
             "product_key_error": pk_error,
             "fsck_error": has_fsck_error(),
             "fsck_results": get_fsck_results(),
+            "oom_error": has_oom_error(),
+            "oom_info": get_oom_error_info(),
             "sd_rw_error": has_sd_rw_error(),
             "drive_usage": drive_usage,
             "low_drive_space_error": low_drive_space_error,
@@ -862,6 +864,12 @@ def page_clear_fsck_error():
     clear_fsck_error()
     return redirect("/")
 
+@app.route("/clear-oom-error")
+def page_clear_oom_error():
+    check_logged_in()
+    clear_oom_error()
+    return redirect("/")
+
 @app.route("/login", methods=["GET","POST"])
 def page_login():
     templateData = {

rootfs/standard/var/www/mynode/templates/includes/main_page_messages.html

@@ -26,6 +26,16 @@
 </div>
 {% endif %}
 
+{% if oom_error %}
+<div class="main_page_warning_block">
+    <center>
+    <p><b>Low Memory Warning</b><br/>Your device was running low on memory and a process has been killed. Please disable some applications and reboot the device.</p>
+    <p>{{ oom_info }}</p>
+    <a href="/clear-oom-error" class="ui-button ui-widget ui-corner-all settings_button_small">OK</a>
+    </center>
+</div>
+{% endif %}
+
 {% if not has_changed_password %}
 <div class="main_page_warning_block">
     <p style="text-align: center;"><b>Warning!</b><br/>You appear to be using the default password! You should change it to something else on the <a href="/settings">settings</a> page.</p>

rootfs/standard/var/www/mynode/thread_functions.py

@@ -171,6 +171,7 @@ def dmesg_log(msg):
 # This will monitor dmesg for system errors or issues
 def monitor_dmesg():
     dmesg_log_clear()
+    dmesg_log("Starting dmesg log monitor")
     cmd = ["dmesg","--follow"]
     dmesg = subprocess.Popen(cmd, stdout=subprocess.PIPE)
     while True:
@@ -179,8 +180,12 @@ def monitor_dmesg():
             l = l.encode('utf-8', 'ignore').decode('utf-8')
 
             #TODO: Check for things like OOM, etc...
-            
+            if "Out of memory" in l:
+                set_oom_error(l)
                 dmesg_log(l)
+            else:
+                #dmesg_log(l)
+                pass
         except Exception as e:
             dmesg_log("dmesg exception: "+str(e))