Override methods for customizing communication with WebDAV servers.

Fix #31 and #30

README.md

@@ -33,12 +33,12 @@ client.execute_request("mkdir", 'directory_name')
 Webdav API
 ==========
 
-Webdav API is a set of webdav methods of work with cloud storage. This set includes the following methods:
+Webdav API is a set of webdav actions of work with cloud storage. This set includes the following actions:
 `check`, `free`, `info`, `list`, `mkdir`, `clean`, `copy`, `move`, `download`, `upload`, `publish` and `unpublish`.
 
 **Configuring the client**
 
-Required keys for configuring client connection with WevDAV-server are webdav\_hostname and webdav\_login, webdav\_password.
+Required keys for configuring client connection with WevDAV-server are `webdav_hostname` and `webdav_login`, `webdav_password`.
 
 ```python
 from webdav3.client import Client
@@ -51,6 +51,25 @@ options = {
 client = Client(options)
 ```
 
+If your server does not support `HEAD` method or there are other reasons to override default WebDAV methods for actions use a dictionary option `webdav_override_methods`. 
+The key should be in the following list: `check`, `free`, `info`, `list`, `mkdir`, `clean`, `copy`, `move`, `download`, `upload`,
+ `publish` and `unpublish`. The value should a string name of WebDAV method, for example `GET`.
+ 
+```python
+from webdav3.client import Client
+
+options = {
+ 'webdav_hostname': "https://webdav.server.ru",
+ 'webdav_login':    "login",
+ 'webdav_password': "password",
+ 'webdav_override_methods': {
+            'check': 'GET'
+        }
+
+}
+client = Client(options)
+```
+
 When a proxy server you need to specify settings to connect through it.
 
 ```python

tests/base_client_it.py

@@ -21,7 +21,10 @@ class BaseClientTestCase(unittest.TestCase):
     options = {
         'webdav_hostname': 'http://localhost:8585',
         'webdav_login': 'alice',
-        'webdav_password': 'secret1234'
+        'webdav_password': 'secret1234',
+        'webdav_override_methods': {
+            'check': 'GET'
+        }
     }
 
     # options = {

tests/test_client_it.py

@@ -224,6 +224,9 @@ class ClientTestCase(BaseClientTestCase):
     def test_valid(self):
         self.assertTrue(self.client.valid())
 
+    def test_check_is_overridden(self):
+        self.assertEqual('GET', self.client.requests['check'])
+
 
 if __name__ == '__main__':
     unittest.main()

webdav3/client.py

@@ -153,10 +153,7 @@ class Client(object):
         webdav_options = get_options(option_type=WebDAVSettings, from_options=options)
 
         self.webdav = WebDAVSettings(webdav_options)
-        response = self.execute_request('options', '')
-        self.supported_methods = response.headers.get('Allow')
-        if 'HEAD' not in self.supported_methods:
-            self.requests['check'] = 'GET'
+        self.requests.update(self.webdav.override_methods)
         self.default_options = {}
 
     def get_headers(self, action, headers_ext=None):

webdav3/connection.py

@@ -25,7 +25,7 @@ class WebDAVSettings(ConnectionSettings):
     ns = "webdav:"
     prefix = "webdav_"
     keys = {'hostname', 'login', 'password', 'token', 'root', 'cert_path', 'key_path', 'recv_speed', 'send_speed',
-            'verbose', 'disable_check'}
+            'verbose', 'disable_check', 'override_methods'}
 
     hostname = None
     login = None
@@ -38,6 +38,7 @@ class WebDAVSettings(ConnectionSettings):
     send_speed = None
     verbose = None
     disable_check = False
+    override_methods = {}
 
     def __init__(self, options):
         self.options = dict()