Implemented ZLUnixFSManager::mimeType
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7a975c122a
commit
11f516e8fa
7 changed files with 120 additions and 6 deletions
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@ -108,6 +108,7 @@ SOURCES += \
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src/BooksTextView.cpp \
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src/expat.c \
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src/libudev.c \
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src/magic.c \
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src/main.cpp \
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src/ZLApplication.cpp \
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src/ZLibrary.cpp
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88
app/src/magic.c
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88
app/src/magic.c
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@ -0,0 +1,88 @@
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/*
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* Copyright (C) 2015 Jolla Ltd.
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* Contact: Slava Monich <slava.monich@jolla.com>
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*
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* You may use this file under the terms of the BSD license as follows:
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Nemo Mobile nor the names of its contributors
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* may be used to endorse or promote products derived from this
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* software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <magic.h>
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#include <stdlib.h>
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#include <dlfcn.h>
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#define MAGIC_FUNCTIONS(f) \
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f(void, magic_close, \
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(magic_t cookie), (cookie), (void)0) \
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f(int, magic_load, \
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(magic_t cookie, const char* path), (cookie, path), -1) \
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f(const char*, magic_file, \
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(magic_t cookie, const char* path), (cookie, path), NULL)
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static struct {
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void* handle;
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union {
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struct magic_proc {
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magic_t (*magic_open)(int flags);
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#define FN_POINTER(type,name,params,args,fail) type (* name) params;
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MAGIC_FUNCTIONS(FN_POINTER)
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} magic;
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void* entry[1];
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} fn;
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} magic;
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static const char* magic_names[] = {
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"magic_open",
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#define FN_NAME(type,name,params,args,fail) #name,
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MAGIC_FUNCTIONS(FN_NAME)
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};
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#define MAGIC_NUM_FUNCTIONS (sizeof(magic_names)/sizeof(magic_names[0]))
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#define MAGIC_NO_HANDLE ((void*)-1)
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#define MAGIC_SO "/usr/lib/libmagic.so.1"
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/* magic_open() is the special function where we load the library */
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magic_t magic_open(int flags)
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{
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if (!magic.handle) {
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magic.handle = dlopen(MAGIC_SO, RTLD_LAZY);
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if (magic.handle) {
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unsigned int i;
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for (i=0; i<MAGIC_NUM_FUNCTIONS; i++) {
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magic.fn.entry[i] = dlsym(magic.handle, magic_names[i]);
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}
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} else {
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magic.handle = MAGIC_NO_HANDLE;
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}
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}
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return magic.fn.magic.magic_open ? magic.fn.magic.magic_open(flags) : NULL;
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}
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/* All other wrappers are generated by the preprocessor */
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#define FN_IMPL(type,name,params,args,fail) type name params \
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{ return magic.fn.magic.name ? magic.fn.magic.name args : fail; }
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MAGIC_FUNCTIONS(FN_IMPL)
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@ -41,6 +41,19 @@ static std::string getHomeDir() {
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return (home != 0) ? home : "";
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}
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ZLUnixFSManager::ZLUnixFSManager() : myMagic(magic_open(MAGIC_MIME_TYPE)) {
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if (myMagic && magic_load(myMagic, NULL) != 0) {
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magic_close(myMagic);
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myMagic = NULL;
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}
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}
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ZLUnixFSManager::~ZLUnixFSManager() {
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if (myMagic) {
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magic_close(myMagic);
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}
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}
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ZLFileInfo ZLUnixFSManager::fileInfo(const std::string &path) const {
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ZLFileInfo info;
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struct stat fileStat;
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@ -190,3 +203,12 @@ bool ZLUnixFSManager::canRemoveFile(const std::string &path) const {
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return access(parentPath(path).c_str(), W_OK) == 0;
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}
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std::string ZLUnixFSManager::mimeType(const std::string &path) const {
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if (myMagic) {
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const char* type = magic_file(myMagic, path.c_str());
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if (type) {
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return std::string(type);
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}
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}
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return std::string();
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}
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@ -21,10 +21,14 @@
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#define __ZLUNIXFSMANAGER_H__
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#include "../../filesystem/ZLFSManager.h"
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#include <magic.h>
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class ZLUnixFSManager : public ZLFSManager {
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protected:
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ZLUnixFSManager();
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~ZLUnixFSManager();
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void normalizeRealPath(std::string &path) const;
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private:
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@ -34,6 +38,7 @@ private:
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ZLInputStream *createPlainInputStream(const std::string &path) const;
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ZLOutputStream *createOutputStream(const std::string &path) const;
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bool removeFile(const std::string &path) const;
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std::string mimeType(const std::string &path) const;
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ZLFileInfo fileInfo(const std::string &path) const;
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@ -43,6 +48,9 @@ private:
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std::string parentPath(const std::string &path) const;
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bool canRemoveFile(const std::string &path) const;
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private:
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magic_t myMagic;
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};
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#endif /* __ZLUNIXFSMANAGER_H__ */
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@ -29,8 +29,3 @@ std::string ZLQtFSManager::convertFilenameToUtf8(const std::string &name) const
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QString qString = QString::fromLocal8Bit(name.c_str());
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return (qString == QString::null) ? "" : (const char*)qString.toUtf8();
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}
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std::string ZLQtFSManager::mimeType(const std::string &path) const {
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// TODO: implement
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return std::string();
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}
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@ -32,7 +32,6 @@ private:
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protected:
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std::string convertFilenameToUtf8(const std::string &name) const;
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std::string mimeType(const std::string &path) const;
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};
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#endif /* __ZLQTFSMANAGER_H__ */
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@ -17,6 +17,7 @@ BuildRequires: pkgconfig(Qt5Qml)
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BuildRequires: pkgconfig(mlite5)
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BuildRequires: pkgconfig(expat)
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BuildRequires: pkgconfig(systemd)
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BuildRequires: file-devel
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BuildRequires: bzip2-devel
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BuildRequires: desktop-file-utils
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BuildRequires: qt5-qttools-linguist
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