implement quit api. indicate if backend is offline

ctl

@@ -90,7 +90,7 @@ if [ "$1" == "debug" ]; then
         exit 1
     fi
     shift
-    exec python3 oml server $@
+    exec python3 oml server debug $PID
 fi
 if [ "$1" == "stop" ]; then
     remove_loginscript

oml/api.py

@@ -9,7 +9,6 @@ import os
 import ox
 from oxtornado import actions
 
-
 import item.api
 import user.api
 import update
@@ -77,3 +76,20 @@ def autocompleteFolder(data):
         'items': ox.sorted_strings(folders)
     }
 actions.register(autocompleteFolder, cache=False)
+
+def quit(data):
+    '''
+        takes {
+        }
+        returns {
+        }
+    '''
+    '''
+    import server
+    server.shutdown()
+    '''
+    import settings
+    subprocess.Popen([os.path.join(settings.base_dir, 'ctl'), 'stop'],
+            close_fds=True, start_new_session=True)
+    return {}
+actions.register(quit, cache=False)

oml/meta/google.py

@@ -6,8 +6,7 @@ from ox.cache import get_json, store
 import ox.web.google
 import stdnum.isbn
 
-from oml.utils import get_language
-from .utils import find_isbns
+from .utils import find_isbns, get_language
 
 import logging
 logger = logging.getLogger(__name__)

oml/meta/utils.py

@@ -5,6 +5,7 @@
 import re
 import stdnum.isbn
 
+import ox
 
 def normalize_isbn(value):
     return ''.join([s for s in value if s.isdigit() or s == 'X'])
@@ -21,3 +22,5 @@ def find_isbns(text):
         '0' * 13,
     )]
 
+def get_language(lang):
+    return ox.iso.codeToLang(lang.split('-')[0]) or lang

oml/server.py

@@ -54,12 +54,43 @@ def log_request(handler):
         log_method("%d %s %.2fms", handler.get_status(),
                    handler._request_summary(), request_time)
 
+def shutdown():
+    if state.tor:
+        state.tor._shutdown = True
+    if state.downloads:
+        logger.debug('shutdown downloads')
+        state.downloads.join()
+    if state.scraping:
+        logger.debug('shutdown scraping')
+        state.scraping.join()
+    logger.debug('shutdown http_server')
+    state.http_server.stop()
+    if state.tasks:
+        logger.debug('shutdown tasks')
+        state.tasks.join()
+    if state.nodes:
+        logger.debug('shutdown nodes')
+        state.nodes.join()
+    if state.node:
+        state.node.stop()
+    if state.tor:
+        logger.debug('shutdown tor')
+        state.tor.shutdown()
+    if state.PID and os.path.exists(state.PID):
+        logger.debug('remove %s', state.PID)
+        os.unlink(state.PID)
+
 def run():
     setup.create_db()
     PID = sys.argv[2] if len(sys.argv) > 2 else None
+    if len(sys.argv) > 3 and sys.argv[2] == 'debug':
+        PID = sys.argv[3]
+        debug = True
+    else:
+        debug = False
 
     log_format='%(asctime)s:%(levelname)s:%(name)s:%(message)s'
-    if not PID:
+    if debug:
         logging.basicConfig(level=logging.DEBUG, format=log_format)
     else:
         logging.basicConfig(level=logging.DEBUG,
@@ -102,6 +133,8 @@ def run():
         with open(PID, 'w') as pid:
             pid.write('%s' % os.getpid())
 
+    state.PID = PID
+    state.http_server = http_server
     state.main = IOLoop.instance()
     state.cache = Cache(ttl=60)
     state.tasks = tasks.Tasks()
@@ -134,32 +167,6 @@ def run():
     print('open browser at %s' % url)
     logger.debug('Starting OML %s at %s', settings.VERSION, url)
 
-    def shutdown():
-        if state.tor:
-            state.tor._shutdown = True
-        if state.downloads:
-            logger.debug('shutdown downloads')
-            state.downloads.join()
-        if state.scraping:
-            logger.debug('shutdown scraping')
-            state.scraping.join()
-        logger.debug('shutdown http_server')
-        http_server.stop()
-        if state.tasks:
-            logger.debug('shutdown tasks')
-            state.tasks.join()
-        if state.nodes:
-            logger.debug('shutdown nodes')
-            state.nodes.join()
-        if state.node:
-            state.node.stop()
-        if state.tor:
-            logger.debug('shutdown tor')
-            state.tor.shutdown()
-        if PID and os.path.exists(PID):
-            logger.debug('remove %s', PID)
-            os.unlink(PID)
-
     signal.signal(signal.SIGTERM, shutdown)
 
     try:

oml/utils.py

@@ -29,7 +29,7 @@ from Crypto.PublicKey import RSA
 from Crypto.Util.asn1 import DerSequence
 
 
-from meta.utils import normalize_isbn, find_isbns
+from meta.utils import normalize_isbn, find_isbns, get_language
 
 import logging
 logger = logging.getLogger(__name__)
@@ -121,9 +121,6 @@ def get_position_by_id(list, key):
             return i
     return -1
 
-def get_language(lang):
-    return ox.iso.codeToLang(lang.split('-')[0]) or lang
-
 def valid(key, value, sig):
     '''
     validate that value was signed by key

static/js/mainMenu.js

@@ -476,6 +476,10 @@ oml.ui.mainMenu = function() {
                     } else {
                         Ox.print('no way to download multiple right now');
                     }
+                } else if (id == 'quit') {
+                    oml.api.quit(function() {
+                        //
+                    });
                 } else {
                     Ox.print('MAIN MENU DOES NOT YET HANDLE', id);
                 }

static/js/oml.js

@@ -128,6 +128,28 @@
                 } catch(e) {}
             }
             removeScreen();
+            oml.bindEvent({
+                close: function() {
+                    if(!$('#offline').length) {
+                        $('<div>')
+                            .attr({id: 'offline'})
+                            .css({
+                                left: 0,
+                                right: 0,
+                                top: 0,
+                                bottom: 0,
+                                position: 'absolute',
+                                opacity: 0.5,
+                                backgroundColor: 'black',
+                                zIndex: 1000
+                            })
+                            .appendTo(Ox.$body);
+                    }
+                },
+                open: function() {
+                    $('#offline').remove();
+                }
+            });
         });
     }