1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
 * This file is part of the LibreOffice project.
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 *
 * This file incorporates work covered by the following license notice:
 *
 *   Licensed to the Apache Software Foundation (ASF) under one or more
 *   contributor license agreements. See the NOTICE file distributed
 *   with this work for additional information regarding copyright
 *   ownership. The ASF licenses this file to you under the Apache
 *   License, Version 2.0 (the "License"); you may not use this file
 *   except in compliance with the License. You may obtain a copy of
 *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
 */


#include <rtl/uri.hxx>
#include <osl/mutex.hxx>
#include <sal/log.hxx>
#include <cppuhelper/compbase.hxx>
#include <cppuhelper/factory.hxx>
#include <cppuhelper/implementationentry.hxx>
#include <cppuhelper/supportsservice.hxx>
#include <ucbhelper/content.hxx>
#include <com/sun/star/uno/XComponentContext.hpp>
#include <com/sun/star/lang/DisposedException.hpp>
#include <com/sun/star/lang/XServiceInfo.hpp>
#include <com/sun/star/lang/XMultiServiceFactory.hpp>
#include <com/sun/star/registry/XRegistryKey.hpp>
#include <com/sun/star/util/theMacroExpander.hpp>
#include <com/sun/star/ucb/IllegalIdentifierException.hpp>
#include <com/sun/star/ucb/XContentProvider.hpp>
#include <tools/diagnose_ex.h>

#define EXPAND_PROTOCOL "vnd.sun.star.expand"


using namespace ::com::sun::star;

namespace
{

struct MutexHolder
{
    mutable ::osl::Mutex m_mutex;
};

typedef ::cppu::WeakComponentImplHelper<
    lang::XServiceInfo, ucb::XContentProvider > t_impl_helper;


class ExpandContentProviderImpl : protected MutexHolder, public t_impl_helper
{
    uno::Reference< uno::XComponentContext > m_xComponentContext;
    uno::Reference< util::XMacroExpander >   m_xMacroExpander;
    OUString expandUri(
        uno::Reference< ucb::XContentIdentifier > const & xIdentifier ) const;

protected:
    void check() const;
    virtual void SAL_CALL disposing() override;

public:
    explicit ExpandContentProviderImpl(
        uno::Reference< uno::XComponentContext > const & xComponentContext )
        : t_impl_helper( m_mutex ),
          m_xComponentContext( xComponentContext ),
          m_xMacroExpander( util::theMacroExpander::get(xComponentContext) )
        {}

    // XServiceInfo
    virtual OUString SAL_CALL getImplementationName() override;
    virtual sal_Bool SAL_CALL supportsService( OUString const & serviceName ) override;
    virtual uno::Sequence< OUString > SAL_CALL getSupportedServiceNames() override;

    // XContentProvider
    virtual uno::Reference< ucb::XContent > SAL_CALL queryContent(
        uno::Reference< ucb::XContentIdentifier > const & xIdentifier ) override;
    virtual sal_Int32 SAL_CALL compareContentIds(
        uno::Reference< ucb::XContentIdentifier > const & xId1,
        uno::Reference< ucb::XContentIdentifier > const & xId2 ) override;
};


void ExpandContentProviderImpl::check() const
{
    // xxx todo guard?
//     MutexGuard guard( m_mutex );
    if (rBHelper.bInDispose || rBHelper.bDisposed)
    {
        throw lang::DisposedException(
            "expand content provider instance has "
            "already been disposed!",
            static_cast< OWeakObject * >(
                const_cast< ExpandContentProviderImpl * >(this) ) );
    }
}

void ExpandContentProviderImpl::disposing()
{
}


uno::Reference< uno::XInterface > create(
    uno::Reference< uno::XComponentContext > const & xComponentContext )
{
    return static_cast< ::cppu::OWeakObject * >(
        new ExpandContentProviderImpl( xComponentContext ) );
}


OUString implName()
{
    return OUString("com.sun.star.comp.ucb.ExpandContentProvider");
}


uno::Sequence< OUString > supportedServices()
{
    return uno::Sequence< OUString > {
        OUString("com.sun.star.ucb.ExpandContentProvider"),
        OUString("com.sun.star.ucb.ContentProvider")
    };
}

// XServiceInfo

OUString ExpandContentProviderImpl::getImplementationName()
{
    check();
    return implName();
}


uno::Sequence< OUString > ExpandContentProviderImpl::getSupportedServiceNames()
{
    check();
    return supportedServices();
}

sal_Bool ExpandContentProviderImpl::supportsService(OUString const & serviceName )
{
    return cppu::supportsService(this, serviceName);
}

OUString ExpandContentProviderImpl::expandUri(
    uno::Reference< ucb::XContentIdentifier > const & xIdentifier ) const
{
    OUString uri( xIdentifier->getContentIdentifier() );
    if (!uri.startsWith(EXPAND_PROTOCOL ":"))
    {
        throw ucb::IllegalIdentifierException(
            "expected protocol " EXPAND_PROTOCOL "!",
            static_cast< OWeakObject * >(
                const_cast< ExpandContentProviderImpl * >(this) ) );
    }
    // cut protocol
    OUString str( uri.copy( sizeof (EXPAND_PROTOCOL ":") -1 ) );
    // decode uric class chars
    str = ::rtl::Uri::decode(
        str, rtl_UriDecodeWithCharset, RTL_TEXTENCODING_UTF8 );
    // expand macro string
    return m_xMacroExpander->expandMacros( str );
}

// XContentProvider

uno::Reference< ucb::XContent > ExpandContentProviderImpl::queryContent(
    uno::Reference< ucb::XContentIdentifier > const & xIdentifier )
{
    check();
    OUString uri( expandUri( xIdentifier ) );

    ::ucbhelper::Content ucb_content;
    if (::ucbhelper::Content::create(
            uri, uno::Reference< ucb::XCommandEnvironment >(),
            m_xComponentContext, ucb_content ))
    {
        return ucb_content.get();
    }
    else
    {
        return uno::Reference< ucb::XContent >();
    }
}


sal_Int32 ExpandContentProviderImpl::compareContentIds(
    uno::Reference< ucb::XContentIdentifier > const & xId1,
    uno::Reference< ucb::XContentIdentifier > const & xId2 )
{
    check();
    try
    {
        OUString uri1( expandUri( xId1 ) );
        OUString uri2( expandUri( xId2 ) );
        return uri1.compareTo( uri2 );
    }
    catch (const ucb::IllegalIdentifierException &)
    {
        css::uno::Any ex( cppu::getCaughtException() );
        SAL_WARN( "ucb", exceptionToString(ex) );
        return -1;
    }
}

static const ::cppu::ImplementationEntry s_entries [] =
{
    {
        create,
        implName,
        supportedServices,
        ::cppu::createSingleComponentFactory,
        nullptr, 0
    },
    { nullptr, nullptr, nullptr, nullptr, nullptr, 0 }
};

}

extern "C"
{

SAL_DLLPUBLIC_EXPORT void * ucpexpand1_component_getFactory(<--- The function 'ucpexpand1_component_getFactory' is never used.
    const sal_Char * pImplName,
    void * pServiceManager,
    void * pRegistryKey )
{
    return ::cppu::component_getFactoryHelper(
        pImplName, pServiceManager, pRegistryKey, s_entries );
}

}

/* vim:set shiftwidth=4 softtabstop=4 expandtab: */