Implemented ZLUnixFSManager::mimeType

This commit is contained in:
Slava Monich 2015-07-07 12:47:07 +03:00
parent 7a975c122a
commit 11f516e8fa
7 changed files with 120 additions and 6 deletions

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@ -108,6 +108,7 @@ SOURCES += \
src/BooksTextView.cpp \
src/expat.c \
src/libudev.c \
src/magic.c \
src/main.cpp \
src/ZLApplication.cpp \
src/ZLibrary.cpp

88
app/src/magic.c Normal file
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@ -0,0 +1,88 @@
/*
* Copyright (C) 2015 Jolla Ltd.
* Contact: Slava Monich <slava.monich@jolla.com>
*
* You may use this file under the terms of the BSD license as follows:
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * 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.
* * Neither the name of Nemo Mobile nor the names of its contributors
* may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* 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
* OWNER 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 <magic.h>
#include <stdlib.h>
#include <dlfcn.h>
#define MAGIC_FUNCTIONS(f) \
f(void, magic_close, \
(magic_t cookie), (cookie), (void)0) \
f(int, magic_load, \
(magic_t cookie, const char* path), (cookie, path), -1) \
f(const char*, magic_file, \
(magic_t cookie, const char* path), (cookie, path), NULL)
static struct {
void* handle;
union {
struct magic_proc {
magic_t (*magic_open)(int flags);
#define FN_POINTER(type,name,params,args,fail) type (* name) params;
MAGIC_FUNCTIONS(FN_POINTER)
} magic;
void* entry[1];
} fn;
} magic;
static const char* magic_names[] = {
"magic_open",
#define FN_NAME(type,name,params,args,fail) #name,
MAGIC_FUNCTIONS(FN_NAME)
};
#define MAGIC_NUM_FUNCTIONS (sizeof(magic_names)/sizeof(magic_names[0]))
#define MAGIC_NO_HANDLE ((void*)-1)
#define MAGIC_SO "/usr/lib/libmagic.so.1"
/* magic_open() is the special function where we load the library */
magic_t magic_open(int flags)
{
if (!magic.handle) {
magic.handle = dlopen(MAGIC_SO, RTLD_LAZY);
if (magic.handle) {
unsigned int i;
for (i=0; i<MAGIC_NUM_FUNCTIONS; i++) {
magic.fn.entry[i] = dlsym(magic.handle, magic_names[i]);
}
} else {
magic.handle = MAGIC_NO_HANDLE;
}
}
return magic.fn.magic.magic_open ? magic.fn.magic.magic_open(flags) : NULL;
}
/* All other wrappers are generated by the preprocessor */
#define FN_IMPL(type,name,params,args,fail) type name params \
{ return magic.fn.magic.name ? magic.fn.magic.name args : fail; }
MAGIC_FUNCTIONS(FN_IMPL)

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@ -41,6 +41,19 @@ static std::string getHomeDir() {
return (home != 0) ? home : "";
}
ZLUnixFSManager::ZLUnixFSManager() : myMagic(magic_open(MAGIC_MIME_TYPE)) {
if (myMagic && magic_load(myMagic, NULL) != 0) {
magic_close(myMagic);
myMagic = NULL;
}
}
ZLUnixFSManager::~ZLUnixFSManager() {
if (myMagic) {
magic_close(myMagic);
}
}
ZLFileInfo ZLUnixFSManager::fileInfo(const std::string &path) const {
ZLFileInfo info;
struct stat fileStat;
@ -190,3 +203,12 @@ bool ZLUnixFSManager::canRemoveFile(const std::string &path) const {
return access(parentPath(path).c_str(), W_OK) == 0;
}
std::string ZLUnixFSManager::mimeType(const std::string &path) const {
if (myMagic) {
const char* type = magic_file(myMagic, path.c_str());
if (type) {
return std::string(type);
}
}
return std::string();
}

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@ -21,10 +21,14 @@
#define __ZLUNIXFSMANAGER_H__
#include "../../filesystem/ZLFSManager.h"
#include <magic.h>
class ZLUnixFSManager : public ZLFSManager {
protected:
ZLUnixFSManager();
~ZLUnixFSManager();
void normalizeRealPath(std::string &path) const;
private:
@ -34,6 +38,7 @@ private:
ZLInputStream *createPlainInputStream(const std::string &path) const;
ZLOutputStream *createOutputStream(const std::string &path) const;
bool removeFile(const std::string &path) const;
std::string mimeType(const std::string &path) const;
ZLFileInfo fileInfo(const std::string &path) const;
@ -43,6 +48,9 @@ private:
std::string parentPath(const std::string &path) const;
bool canRemoveFile(const std::string &path) const;
private:
magic_t myMagic;
};
#endif /* __ZLUNIXFSMANAGER_H__ */

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@ -29,8 +29,3 @@ std::string ZLQtFSManager::convertFilenameToUtf8(const std::string &name) const
QString qString = QString::fromLocal8Bit(name.c_str());
return (qString == QString::null) ? "" : (const char*)qString.toUtf8();
}
std::string ZLQtFSManager::mimeType(const std::string &path) const {
// TODO: implement
return std::string();
}

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@ -32,7 +32,6 @@ private:
protected:
std::string convertFilenameToUtf8(const std::string &name) const;
std::string mimeType(const std::string &path) const;
};
#endif /* __ZLQTFSMANAGER_H__ */

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@ -17,6 +17,7 @@ BuildRequires: pkgconfig(Qt5Qml)
BuildRequires: pkgconfig(mlite5)
BuildRequires: pkgconfig(expat)
BuildRequires: pkgconfig(systemd)
BuildRequires: file-devel
BuildRequires: bzip2-devel
BuildRequires: desktop-file-utils
BuildRequires: qt5-qttools-linguist