From b96be0ed08b8fe0d3c07b7bda0d683e67ff517e4 Mon Sep 17 00:00:00 2001
From: Maciej Tronowski <mtro@man.poznan.pl>
Date: Thu, 9 Apr 2015 14:25:52 +0200
Subject: [PATCH] info view: get information about file or directory

---
 filex/ftp.py   |   34 ++++++++++++++++++++++------------
 filex/urls.py  |    1 +
 filex/views.py |   30 ++++++++++++++++++++++++++++--
 3 files changed, 51 insertions(+), 14 deletions(-)

diff --git a/filex/ftp.py b/filex/ftp.py
index c0b3e25..a08732d 100644
--- a/filex/ftp.py
+++ b/filex/ftp.py
@@ -1,7 +1,9 @@
 from datetime import datetime
 from Queue import Queue, Empty
+import os
 import re
 from threading import Event
+from urlparse import urlparse
 
 from django.utils.timezone import localtime, UTC
 from gridftp import FTPClient, Buffer, HandleAttr, OperationAttr
@@ -84,25 +86,25 @@ class FTPOperation:
 
     @staticmethod
     def _parse_mlst(listing):
-        data = []
-
         for item in listing.strip().splitlines():
             # we may receive empty string when there are multiple consecutive newlines in listing
             if item:
                 attrs, name = item.split(' ', 1)
 
-                attrs = dict((attr.split('=') for attr in attrs.split(';') if attr))
-
-                date = localtime(datetime.strptime(attrs['Modify'], "%Y%m%d%H%M%S").replace(tzinfo=UTC()))
+                attrs_dict = {}
+                for attr in attrs.split(';'):
+                    try:
+                        key, value = attr.split('=', 1)
+                        attrs_dict[key] = value
+                    except ValueError:
+                        pass
 
-                data.append({
+                yield {
                     'name': name,
-                    'type': 'file' if attrs['Type'] == 'file' else 'directory',
-                    'size': int(attrs['Size']),
-                    'date': date,
-                })
-
-        return data
+                    'type': 'directory' if attrs_dict['Type'] == 'dir' else 'file',
+                    'size': int(attrs_dict['Size']),
+                    'date': localtime(datetime.strptime(attrs_dict['Modify'], "%Y%m%d%H%M%S").replace(tzinfo=UTC())),
+                }
 
     def get(self, url):
         self.cli.get(url, self._done, None, self.op_attr)
@@ -125,3 +127,11 @@ class FTPOperation:
         self.cli.move(src, dst, self._done, None, self.op_attr)
 
         self.wait()
+
+    def info(self, url):
+        data = self.listing(url).next()
+
+        if data['name'] == '.':
+            data['name'] = os.path.basename(urlparse(url).path.rstrip('/')) or u'/'
+
+        return data
diff --git a/filex/urls.py b/filex/urls.py
index 3a1945d..ad9f403 100644
--- a/filex/urls.py
+++ b/filex/urls.py
@@ -6,4 +6,5 @@ urlpatterns = patterns('',
     url(r'^list/$', views.list_content, name='list'),
     url(r'^download/$', views.download, name='download'),
     url(r'^upload/$', views.upload, name='upload'),
+    url(r'^info/$', views.info, name='info'),
 )
diff --git a/filex/views.py b/filex/views.py
index 6dd2d9f..9aeb505 100644
--- a/filex/views.py
+++ b/filex/views.py
@@ -32,11 +32,14 @@ def list_content(request):
     except FTPException as e:
         return JsonResponse({'msg': e.message}, status=400)
 
+    data = []
     for item in listing:
         item['size'] = filesizeformat(item['size'])
-        item['date'] = date_format(item['date'], 'DATETIME_FORMAT')
+        item['date'] = date_format(item['date'], 'CUSTOM_DATETIME_FORMAT')
 
-    return JsonResponse(listing, safe=False)
+        data.append(item)
+
+    return JsonResponse(data, safe=False)
 
 
 def download(request):
@@ -68,3 +71,26 @@ def download(request):
 def upload(request):
     # TODO error handling
     return JsonResponse({'success': True})
+
+
+def info(request):
+    check_auth(request)
+
+    # TODO data validation
+    host = request.GET.get('host')
+    path = request.GET.get('path')
+    if not host or not path:
+        raise SuspiciousOperation("No path or host given!")
+
+    url = 'gsiftp://' + host + path
+
+    try:
+        return JsonResponse(FTPOperation(request.session['proxy']).info(url))
+    except FTPException as e:
+        status = 400
+        if 'No such file or directory' in e.message:
+            status = 404
+        elif 'Permission denied' in e.message:
+            status = 403
+
+        return JsonResponse({'msg': e.message}, status=status)
-- 
1.7.9.5