reactos/rosapps/downloader/xml.c

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/* PROJECT: ReactOS Downloader
* LICENSE: GPL - See COPYING in the top level directory
* FILE: base\applications\downloader\xml.c
* PURPOSE: Parsing of application information xml files
* PROGRAMMERS: Maarten Bosma, Lester Kortenhoeven
*/
#include <libs/expat/expat.h>
#include <string.h>
#include <stdio.h>
#include <windows.h>
#include <shlwapi.h>
#include "structures.h"
#include "resources.h"
BOOL TagOpen;
struct Category* Current;
struct Application* CurrentApplication;
char CurrentTag [0x100];
extern WCHAR Strings [STRING_COUNT][MAX_STRING_LENGHT];
void tag_opened (void* usrdata, const char* tag, const char** arg)
{
int i;
if(!strcmp(tag, "tree") && !CurrentApplication)
{
// check version
}
else if(!strcmp(tag, "category") && !CurrentApplication)
{
if (!Current)
{
Current = malloc(sizeof(struct Category));
memset(Current, 0, sizeof(struct Category));
}
else if (TagOpen)
{
Current->Children = malloc(sizeof(struct Category));
memset(Current->Children, 0, sizeof(struct Category));
Current->Children->Parent = Current;
Current = Current->Children;
}
else
{
Current->Next = malloc(sizeof(struct Category));
memset(Current->Next, 0, sizeof(struct Category));
Current->Next->Parent = Current->Parent;
Current = Current->Next;
}
TagOpen = TRUE;
for (i=0; arg[i]; i+=2)
{
if(!strcmp(arg[i], "name"))
{
MultiByteToWideChar(CP_UTF8, 0, arg[i+1], -1, Current->Name, 0x100);
}
if(!strcmp(arg[i], "icon"))
{
Current->Icon = atoi(arg[i+1]);
}
}
}
else if(!strcmp(tag, "application") && !CurrentApplication)
{
if(Current->Apps)
{
CurrentApplication = Current->Apps;
while(CurrentApplication->Next)
CurrentApplication = CurrentApplication->Next;
CurrentApplication->Next = malloc(sizeof(struct Application));
memset(CurrentApplication->Next, 0, sizeof(struct Application));
CurrentApplication = CurrentApplication->Next;
}
else
{
Current->Apps = malloc(sizeof(struct Application));
memset(Current->Apps, 0, sizeof(struct Application));
CurrentApplication = Current->Apps;
}
for (i=0; arg[i]; i+=2)
{
if(!strcmp(arg[i], "name"))
{
MultiByteToWideChar(CP_UTF8, 0, arg[i+1], -1, CurrentApplication->Name, 0x100);
}
}
}
else if (CurrentApplication)
{
strncpy(CurrentTag, tag, 0x100);
}
else
MessageBoxW(0,Strings[IDS_XMLERROR_2],0,0);
}
void text (void* usrdata, const char* data, int len)
{
if (!CurrentApplication)
return;
if(!strcmp(CurrentTag, "maintainer"))
{
int currentlengt = lstrlenW(CurrentApplication->Maintainer);
MultiByteToWideChar(CP_UTF8, 0, data, len, &CurrentApplication->Maintainer[currentlengt], 0x100-currentlengt);
}
else if(!strcmp(CurrentTag, "regname"))
{
int currentlengt = lstrlenW(CurrentApplication->RegName);
MultiByteToWideChar(CP_UTF8, 0, data, len, &CurrentApplication->RegName[currentlengt], 0x100-currentlengt);
}
else if(!strcmp(CurrentTag, "description"))
{
int currentlengt = lstrlenW(CurrentApplication->Description);
MultiByteToWideChar(CP_UTF8, 0, data, len, &CurrentApplication->Description[currentlengt], 0x400-currentlengt);
}
else if(!strcmp(CurrentTag, "location"))
{
int currentlengt = lstrlenW(CurrentApplication->Location);
MultiByteToWideChar(CP_UTF8, 0, data, len, &CurrentApplication->Location[currentlengt], 0x100-currentlengt);
}
else if(!strcmp(CurrentTag, "version"))
{
int currentlengt = lstrlenW(CurrentApplication->Version);
MultiByteToWideChar(CP_UTF8, 0, data, len, &CurrentApplication->Version[currentlengt], 0x400-currentlengt);
}
else if(!strcmp(CurrentTag, "licence"))
{
int currentlengt = lstrlenW(CurrentApplication->Licence);
MultiByteToWideChar(CP_UTF8, 0, data, len, &CurrentApplication->Licence[currentlengt], 0x100-currentlengt);
}
else if(!strcmp(CurrentTag, "depends"))
{
int currentlengt = lstrlenW(CurrentApplication->Depends);
MultiByteToWideChar(CP_UTF8, 0, data, len, &CurrentApplication->Depends[currentlengt], 0x100-currentlengt);
}
else if(!strcmp(CurrentTag, "postinstallaction"))
{
int currentlengt = lstrlenW(CurrentApplication->PostInstallAction);
MultiByteToWideChar(CP_UTF8, 0, data, len, &CurrentApplication->PostInstallAction[currentlengt], 0x100-currentlengt);
}
}
void tag_closed (void* tree, const char* tag)
{
CurrentTag[0] = 0;
if(!strcmp(tag, "category"))
{
if (TagOpen)
{
TagOpen = FALSE;
}
else
{
Current = Current->Parent;
}
}
else if(!strcmp(tag, "application"))
{
CurrentApplication = NULL;
}
}
BOOL ProcessXML (const char* filename, struct Category* Root)
{
int done = 0;
char buffer[255];
FILE* file;
XML_Parser parser;
if(Current)
return FALSE;
Current = Root;
TagOpen = TRUE;
file = fopen("downloader.xml", "r");
if(!file)
{
file = fopen(filename, "r");
if(!file)
{
MessageBoxW(0,Strings[IDS_XMLERROR_1],0,0);
return FALSE;
}
}
parser = XML_ParserCreate(NULL);
XML_SetElementHandler(parser, tag_opened, tag_closed);
XML_SetCharacterDataHandler(parser, text);
while (!done)
{
size_t len = fread (buffer, 1, sizeof(buffer), file);
done = len < sizeof(buffer);
if(!XML_Parse(parser, buffer, len, done))
{
MessageBoxW(0,Strings[IDS_XMLERROR_2],0,0);
return FALSE;
}
}
XML_ParserFree(parser);
fclose(file);
return TRUE;
}
void FreeApps (struct Application* Apps)
{
if (Apps->Next)
FreeApps(Apps->Next);
free(Apps);
}
void FreeTree (struct Category* Node)
{
if (Node->Children)
FreeTree(Node->Children);
if (Node->Next)
FreeTree(Node->Next);
if (Node->Apps)
FreeApps(Node->Apps);
free(Node);
}