teach leave to: remove magic_folder section of config

[tahoe-lafs/tahoe-lafs.git] / src / allmydata / scripts / magic_folder_cli.py

diff --git a/src/allmydata/scripts/magic_folder_cli.py b/src/allmydata/scripts/magic_folder_cli.py
index 2c98d3c95977534d93d71c887e0c597dcbd08c32..1b7ff39a1babc0cbf5da79c4ea0c6067315bf6a0 100644 (file)
--- a/src/allmydata/scripts/magic_folder_cli.py
+++ b/src/allmydata/scripts/magic_folder_cli.py
@@ -27,10 +27,13 @@ class CreateOptions(BasedirOptions):
             raise usage.UsageError("An alias must end with a ':' character.")
         self.alias = alias[:-1]
         self.nickname = None if nickname is None else argv_to_unicode(nickname)
-        self.local_dir = None if local_dir is None else argv_to_abspath(local_dir)
+
+        # Expand the path relative to the current directory of the CLI command, not the node.
+        self.local_dir = None if local_dir is None else argv_to_abspath(local_dir, long_path=False)
+
         if self.nickname and not self.local_dir:
             raise usage.UsageError("If NICKNAME is specified then LOCAL_DIR must also be specified.")
-        node_url_file = os.path.join(self['node-directory'], "node.url")
+        node_url_file = os.path.join(self['node-directory'], u"node.url")
         self['node-url'] = fileutil.read(node_url_file).strip()
 
 def _delegate_options(source_options, target_options):
@@ -88,7 +91,7 @@ class InviteOptions(BasedirOptions):
             raise usage.UsageError("An alias must end with a ':' character.")
         self.alias = alias[:-1]
         self.nickname = argv_to_unicode(nickname)
-        node_url_file = os.path.join(self['node-directory'], "node.url")
+        node_url_file = os.path.join(self['node-directory'], u"node.url")
         self['node-url'] = open(node_url_file, "r").read().strip()
         aliases = get_aliases(self['node-directory'])
         self.aliases = aliases
@@ -136,7 +139,9 @@ class JoinOptions(BasedirOptions):
     magic_readonly_cap = ""
     def parseArgs(self, invite_code, local_dir):
         BasedirOptions.parseArgs(self)
-        self.local_dir = None if local_dir is None else argv_to_abspath(local_dir)
+
+        # Expand the path relative to the current directory of the CLI command, not the node.
+        self.local_dir = None if local_dir is None else argv_to_abspath(local_dir, long_path=False)
         self.invite_code = to_str(argv_to_unicode(invite_code))
 
 def join(options):
@@ -145,21 +150,54 @@ def join(options):
         raise usage.UsageError("Invalid invite code.")
     magic_readonly_cap, dmd_write_cap = fields
 
-    dmd_cap_file = os.path.join(options["node-directory"], "private/magic_folder_dircap")
-    collective_readcap_file = os.path.join(options["node-directory"], "private/collective_dircap")
+    dmd_cap_file = os.path.join(options["node-directory"], u"private", u"magic_folder_dircap")
+    collective_readcap_file = os.path.join(options["node-directory"], u"private", u"collective_dircap")
+    magic_folder_db_file = os.path.join(options["node-directory"], u"private", u"magicfolderdb.sqlite")
+
+    if os.path.exists(dmd_cap_file) or os.path.exists(collective_readcap_file) or os.path.exists(magic_folder_db_file):
+        raise usage.UsageError("Cannot join. Already joined.")
 
     fileutil.write(dmd_cap_file, dmd_write_cap)
     fileutil.write(collective_readcap_file, magic_readonly_cap)
-    fileutil.write(os.path.join(options["node-directory"], "tahoe.cfg"),
+
+    # FIXME: modify any existing [magic_folder] fields, rather than appending.
+    fileutil.write(os.path.join(options["node-directory"], u"tahoe.cfg"),
                    "[magic_folder]\nenabled = True\nlocal.directory = %s\n"
                    % (options.local_dir.encode('utf-8'),), mode="ab")
     return 0
 
+class LeaveOptions(BasedirOptions):
+    synopsis = ""
+    def parseArgs(self):
+        BasedirOptions.parseArgs(self)
+
+def leave(options):
+    from ConfigParser import SafeConfigParser
+
+    dmd_cap_file = os.path.join(options["node-directory"], u"private", u"magic_folder_dircap")
+    collective_readcap_file = os.path.join(options["node-directory"], u"private", u"collective_dircap")
+    magic_folder_db_file = os.path.join(options["node-directory"], u"private", u"magicfolderdb.sqlite")
+
+    parser = SafeConfigParser()
+    parser.read(os.path.join(options["node-directory"], u"tahoe.cfg"))
+    parser.remove_section("magic_folder")
+    f = open(os.path.join(options["node-directory"], u"tahoe.cfg"), "w")
+    parser.write(f)
+    f.close()
+
+    for f in [dmd_cap_file, collective_readcap_file, magic_folder_db_file]:
+        try:
+            os.remove(f)
+        except OSError,e:
+            pass
+    return 0
+
 class MagicFolderCommand(BaseOptions):
     subCommands = [
         ["create", None, CreateOptions, "Create a Magic Folder."],
         ["invite", None, InviteOptions, "Invite someone to a Magic Folder."],
         ["join", None, JoinOptions, "Join a Magic Folder."],
+        ["leave", None, LeaveOptions, "Leave a Magic Folder."],
     ]
     def postOptions(self):
         if not hasattr(self, 'subOptions'):
@@ -178,6 +216,7 @@ subDispatch = {
     "create": create,
     "invite": invite,
     "join": join,
+    "leave": leave,
 }
 
 def do_magic_folder(options):