moved winix directories to winixd subdirectory

git-svn-id: svn://ttmath.org/publicrep/winix/trunk@1027 e52654a7-88a9-db11-a3e9-0013d4bc506e

winixd/functions/ln.cpp

@@ -0,0 +1,175 @@
+/*
+ * This file is a part of Winix
+ * and is distributed under the 2-Clause BSD licence.
+ * Author: Tomasz Sowa <t.sowa@ttmath.org>
+ */
+
+/* 
+ * Copyright (c) 2010-2014, Tomasz Sowa
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * 
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ * 
+ */
+ 
+#include "ln.h"
+#include "core/misc.h"
+#include "functions/functions.h"
+
+
+
+namespace Winix
+{
+
+
+
+namespace Fun
+{
+
+Ln::Ln()
+{
+	fun.url = L"ln";
+}
+
+
+
+bool Ln::HasAccess()
+{
+	return system->HasWriteAccess(*cur->request->dir_tab.back());
+}
+
+
+
+bool Ln::CreateSymbolicLink(long parent_id, const wchar_t * link_to, const wchar_t * url, bool link_redirect)
+{
+	item.Clear(); // setting the date to now
+	item.type          = Item::symlink;
+	item.parent_id     = parent_id;
+	item.url           = url;
+	item.link_to       = link_to;
+	item.link_redirect = static_cast<int>(link_redirect);
+	item.privileges    = system->NewFilePrivileges();
+	functions->SetUser(item);
+	functions->PrepareUrl(item);
+
+return db->AddItem(item) == WINIX_ERR_OK;
+}
+
+
+bool Ln::CreateSymbolicLink(long parent_id, const std::wstring & link_to, const std::wstring & url, bool link_redirect)
+{
+	return CreateSymbolicLink(parent_id, link_to.c_str(), url.c_str(), link_redirect);
+}
+
+
+void Ln::CreateSymbolicLink(const std::wstring & link_to)
+{
+	long parent_id           = cur->request->dir_tab.back()->id;
+	const std::wstring & url = cur->request->PostVar(L"url");
+	bool link_redirect       = cur->request->IsPostVar(L"makeredirect") ? 1 : 0;
+
+	if( CreateSymbolicLink(parent_id, link_to, url, link_redirect) )
+		log << log3 << "Ln: created a symbolic link to: " << link_to << logend;
+	else
+		cur->request->status = WINIX_ERR_PERMISSION_DENIED;
+}
+
+
+/*
+!! IMPROVE ME
+we need a better public interface
+instead of std::vector<Item*> may std::wstring for path?
+
+	dirs    - directory from we start looking for a destination file
+	link_to - destination file (name or path - relative or not)
+	url     - suggested url name of the link
+*/
+bool Ln::CreateHardLink(const std::vector<Item*> & dirs, const std::wstring & link_to, const std::wstring & url)
+{
+	if( dirs.empty() )
+		return false;
+
+	int res = system->FollowAllLinks(dirs, link_to, dir_tab, item, false, false);
+
+	if( res == 0 )
+	{
+		log << log2 << "Ln: " << link_to << " is a directory (can't create a hard link)" << logend;
+		return false;
+	}
+	else
+	if( res == 1 )
+	{
+		item.type          = Item::file;
+		item.parent_id     = dirs.back()->id;
+		item.url           = url;
+		functions->PrepareUrl(item);
+
+		return db->AddHardLink(item) == WINIX_ERR_OK;
+	}
+
+return false;
+}
+
+
+
+
+void Ln::CreateHardLink(const std::wstring & link_to)
+{
+	const std::vector<Item*> & dirs = cur->request->dir_tab;
+	const std::wstring & url        = cur->request->PostVar(L"url");
+
+	if( CreateHardLink(dirs, link_to, url) )
+		log << log3 << "Ln: created a hard link to: " << link_to << logend;
+	else
+		cur->request->status = WINIX_ERR_PERMISSION_DENIED;
+}
+
+
+
+// we do not use notifications for links
+void Ln::MakePost()
+{
+	link_to = cur->request->PostVar(L"linkto");
+	TrimWhite(link_to);
+
+	if( link_to.empty() )
+		return;
+
+	int type = Toi(cur->request->PostVar(L"linktype"));
+
+	if( type == 0 )
+		CreateHardLink(link_to);
+	else
+		CreateSymbolicLink(link_to);
+
+	if( cur->request->status == WINIX_ERR_OK )
+		system->RedirectTo(item);
+}
+
+
+
+} // namespace
+
+
+} // namespace Winix
+