static void
chmfile_windows_info(struct chmFile *cfd, ChmFile *chmfile)
{
struct chmUnitInfo ui;
unsigned char buffer[4096];
size_t size = 0;
u_int32_t entries, entry_size;
u_int32_t hhc, hhk, title, home;
if (chm_resolve_object(cfd, "/#WINDOWS", &ui) != CHM_RESOLVE_SUCCESS)
return;
size = chm_retrieve_object(cfd, &ui, buffer, 0L, 8);
if (size < 8)
return;
entries = get_dword(buffer);
if (entries < 1)
return;
entry_size = get_dword(buffer + 4);
size = chm_retrieve_object(cfd, &ui, buffer, 8L, entry_size);
if (size < entry_size)
return;
hhc = get_dword(buffer + 0x60);
hhk = get_dword(buffer + 0x64);
home = get_dword(buffer + 0x68);
title = get_dword(buffer + 0x14);
if (chm_resolve_object(cfd, "/#STRINGS", &ui) != CHM_RESOLVE_SUCCESS)
return;
size = chm_retrieve_object(cfd, &ui, buffer, 0L, 4096);
if (!size)
return;
if (chmfile->hhc == NULL && hhc)
chmfile->hhc = g_strdup_printf("/%s", buffer + hhc);
if (chmfile->hhk == NULL && hhk)
chmfile->hhk = g_strdup_printf("/%s", buffer + hhk);
if (chmfile->home == NULL && home)
chmfile->home = g_strdup_printf("/%s", buffer + home);
if (chmfile->title == NULL && title)
chmfile->title = g_strdup((char *)buffer + title);
}
unsigned char *ChmDoc::GetData(const char *fileName, size_t *lenOut)
{
ScopedMem<char> fileNameTmp;
if (!str::StartsWith(fileName, "/")) {
fileNameTmp.Set(str::Join("/", fileName));
fileName = fileNameTmp;
} else if (str::StartsWith(fileName, "///")) {
fileName += 2;
}
struct chmUnitInfo info;
int res = chm_resolve_object(chmHandle, fileName, &info);
if (CHM_RESOLVE_SUCCESS != res)
return NULL;
size_t len = (size_t)info.length;
if (len > 128 * 1024 * 1024) {
// don't allow anything above 128 MB
return NULL;
}
// +1 for 0 terminator for C string compatibility
ScopedMem<unsigned char> data((unsigned char *)malloc(len + 1));
if (!data)
return NULL;
if (!chm_retrieve_object(chmHandle, &info, data.Get(), 0, len))
return NULL;
data[len] = '\0';
if (lenOut)
*lenOut = len;
return data.StealData();
}
static HRESULT WINAPI ITSS_IStorageImpl_OpenStream(
IStorage* iface,
LPCOLESTR pwcsName,
void* reserved1,
DWORD grfMode,
DWORD reserved2,
IStream** ppstm)
{
ITSS_IStorageImpl *This = impl_from_IStorage(iface);
IStream_Impl *stm;
DWORD len;
struct chmUnitInfo ui;
int r;
WCHAR *path, *p;
TRACE("%p %s %p %u %u %p\n", This, debugstr_w(pwcsName),
reserved1, grfMode, reserved2, ppstm );
len = strlenW( This->dir ) + strlenW( pwcsName ) + 1;
path = HeapAlloc( GetProcessHeap(), 0, len*sizeof(WCHAR) );
strcpyW( path, This->dir );
if( pwcsName[0] == '/' || pwcsName[0] == '\\' )
{
p = &path[strlenW( path ) - 1];
while( ( path <= p ) && ( *p == '/' ) )
*p-- = 0;
}
strcatW( path, pwcsName );
for(p=path; *p; p++) {
if(*p == '\\')
*p = '/';
}
if(*--p == '/')
*p = 0;
TRACE("Resolving %s\n", debugstr_w(path));
r = chm_resolve_object(This->chmfile, path, &ui);
HeapFree( GetProcessHeap(), 0, path );
if( r != CHM_RESOLVE_SUCCESS ) {
WARN("Could not resolve object\n");
return STG_E_FILENOTFOUND;
}
stm = ITSS_create_stream( This, &ui );
if( !stm )
return E_FAIL;
*ppstm = &stm->IStream_iface;
return S_OK;
}
unsigned char *ChmDoc::GetData(const char *fileName, size_t *lenOut)
{
ScopedMem<char> fileNameTmp;
if (!str::StartsWith(fileName, "/")) {
fileNameTmp.Set(str::Join("/", fileName));
fileName = fileNameTmp;
} else if (str::StartsWith(fileName, "///")) {
fileName += 2;
}
struct chmUnitInfo info;
int res = chm_resolve_object(chmHandle, fileName, &info);
if (CHM_RESOLVE_SUCCESS != res && str::FindChar(fileName, '\\')) {
// Microsoft's HTML Help CHM viewer tolerates backslashes in URLs
fileNameTmp.SetCopy(fileName);
str::TransChars(fileNameTmp, "\\", "/");
fileName = fileNameTmp;
res = chm_resolve_object(chmHandle, fileName, &info);
}
if (CHM_RESOLVE_SUCCESS != res)
return nullptr;
size_t len = (size_t)info.length;
if (len > 128 * 1024 * 1024) {
// don't allow anything above 128 MB
return nullptr;
}
// +1 for 0 terminator for C string compatibility
ScopedMem<unsigned char> data((unsigned char *)malloc(len + 1));
if (!data)
return nullptr;
if (!chm_retrieve_object(chmHandle, &info, data.Get(), 0, len))
return nullptr;
data[len] = '\0';
if (lenOut)
*lenOut = len;
return data.StealData();
}
bool ChmDoc::HasData(const char* fileName) {
if (!fileName)
return nullptr;
AutoFree tmpName;
if (!str::StartsWith(fileName, "/")) {
tmpName.Set(str::Join("/", fileName));
fileName = tmpName;
} else if (str::StartsWith(fileName, "///"))
fileName += 2;
struct chmUnitInfo info;
return chm_resolve_object(chmHandle, fileName, &info) == CHM_RESOLVE_SUCCESS;
}
/*
* Class: org_chm4j_ChmEntry
* Method: readContent
* Signature: (Ljava/lang/String;Ljava/lang/String;)[B
*/
JNIEXPORT jbyteArray JNICALL Java_org_chm4j_ChmEntry_readContent
(JNIEnv *env, jobject jobj, jstring jfilename, jstring jpath) {
// opens the file
const char *filename = (*env)->GetStringUTFChars(env, jfilename, 0);
struct chmFile* cFile = chm_open(filename);
(*env)->ReleaseStringUTFChars(env, jfilename, filename);
if(cFile == NULL) {
J_ThrowException(env, "java/io/IOException", "failed to open the file");
return NULL;
}
// resolves entry
struct chmUnitInfo cUnit;
const char *path = (*env)->GetStringUTFChars(env, jpath, NULL);
int res = chm_resolve_object(cFile, path, &cUnit);
(*env)->ReleaseStringUTFChars(env, jpath, path);
if(res != CHM_RESOLVE_SUCCESS) {
// close the file
chm_close(cFile);
J_ThrowException(env, "java.io.IOException", "failed to resolve entry");
return NULL;
}
// retrieves entry content
unsigned char* buf = (unsigned char*) malloc(sizeof(unsigned char) * cUnit.length);
if(buf == NULL) {
// close the file
chm_close(cFile);
J_ThrowException(env, "java.io.IOException", "failed to allocate buffer");
return NULL;
}
jlong nbRead = (jlong) chm_retrieve_object(cFile, &cUnit, buf, 0, cUnit.length);
// close the file
chm_close(cFile);
// creates and fills java byte array
jbyteArray data = (*env)->NewByteArray(env, nbRead);
if(nbRead > 0) {
(*env)->SetByteArrayRegion(env, data, 0, nbRead, buf);
}
free(buf);
return data;
}
static HRESULT WINAPI ITSProtocol_Start(IInternetProtocol *iface, LPCWSTR szUrl,
IInternetProtocolSink *pOIProtSink, IInternetBindInfo *pOIBindInfo,
DWORD grfPI, HANDLE_PTR dwReserved)
{
ITSProtocol *This = impl_from_IInternetProtocol(iface);
BINDINFO bindinfo;
DWORD bindf = 0, len;
LPWSTR file_name, mime, object_name, p;
LPCWSTR ptr;
struct chmFile *chm_file;
struct chmUnitInfo chm_object;
int res;
HRESULT hres;
static const WCHAR separator[] = {':',':',0};
TRACE("(%p)->(%s %p %p %08x %lx)\n", This, debugstr_w(szUrl), pOIProtSink,
pOIBindInfo, grfPI, dwReserved);
ptr = skip_schema(szUrl);
if(!ptr)
return INET_E_USE_DEFAULT_PROTOCOLHANDLER;
memset(&bindinfo, 0, sizeof(bindinfo));
bindinfo.cbSize = sizeof(BINDINFO);
hres = IInternetBindInfo_GetBindInfo(pOIBindInfo, &bindf, &bindinfo);
if(FAILED(hres)) {
WARN("GetBindInfo failed: %08x\n", hres);
return hres;
}
ReleaseBindInfo(&bindinfo);
len = strlenW(ptr)+3;
file_name = HeapAlloc(GetProcessHeap(), 0, len*sizeof(WCHAR));
memcpy(file_name, ptr, len*sizeof(WCHAR));
hres = UrlUnescapeW(file_name, NULL, &len, URL_UNESCAPE_INPLACE);
if(FAILED(hres)) {
WARN("UrlUnescape failed: %08x\n", hres);
HeapFree(GetProcessHeap(), 0, file_name);
return hres;
}
p = strstrW(file_name, separator);
if(!p) {
WARN("invalid url\n");
HeapFree(GetProcessHeap(), 0, file_name);
return report_result(pOIProtSink, STG_E_FILENOTFOUND);
}
*p = 0;
chm_file = chm_openW(file_name);
if(!chm_file) {
WARN("Could not open chm file\n");
HeapFree(GetProcessHeap(), 0, file_name);
return report_result(pOIProtSink, STG_E_FILENOTFOUND);
}
object_name = p+2;
len = strlenW(object_name);
if(*object_name != '/' && *object_name != '\\') {
memmove(object_name+1, object_name, (len+1)*sizeof(WCHAR));
*object_name = '/';
len++;
}
if(object_name[len-1] == '/')
object_name[--len] = 0;
for(p=object_name; *p; p++) {
if(*p == '\\')
*p = '/';
}
remove_dot_segments(object_name);
TRACE("Resolving %s\n", debugstr_w(object_name));
memset(&chm_object, 0, sizeof(chm_object));
res = chm_resolve_object(chm_file, object_name, &chm_object);
if(res != CHM_RESOLVE_SUCCESS) {
WARN("Could not resolve chm object\n");
HeapFree(GetProcessHeap(), 0, file_name);
chm_close(chm_file);
return report_result(pOIProtSink, STG_E_FILENOTFOUND);
}
IInternetProtocolSink_ReportProgress(pOIProtSink, BINDSTATUS_SENDINGREQUEST,
strrchrW(object_name, '/')+1);
/* FIXME: Native doesn't use FindMimeFromData */
hres = FindMimeFromData(NULL, object_name, NULL, 0, NULL, 0, &mime, 0);
HeapFree(GetProcessHeap(), 0, file_name);
if(SUCCEEDED(hres)) {
IInternetProtocolSink_ReportProgress(pOIProtSink, BINDSTATUS_MIMETYPEAVAILABLE, mime);
CoTaskMemFree(mime);
}
release_chm(This); /* Native leaks handle here */
This->chm_file = chm_file;
This->chm_object = chm_object;
hres = IInternetProtocolSink_ReportData(pOIProtSink,
BSCF_FIRSTDATANOTIFICATION|BSCF_DATAFULLYAVAILABLE,
chm_object.length, chm_object.length);
if(FAILED(hres)) {
WARN("ReportData failed: %08x\n", hres);
release_chm(This);
return report_result(pOIProtSink, hres);
}
hres = IInternetProtocolSink_ReportProgress(pOIProtSink, BINDSTATUS_BEGINDOWNLOADDATA, NULL);
return report_result(pOIProtSink, hres);
}
static void
chmfile_system_info(struct chmFile *cfd, ChmFile *chmfile)
{
struct chmUnitInfo ui;
unsigned char buffer[4096];
int index = 0;
unsigned char* cursor = NULL;
u_int16_t value = 0;
u_int32_t lcid = 0;
size_t size = 0;
if (chm_resolve_object(cfd, "/#SYSTEM", &ui) != CHM_RESOLVE_SUCCESS)
return;
size = chm_retrieve_object(cfd, &ui, buffer, 4L, 4096);
if (!size)
return;
buffer[size - 1] = 0;
for(;;) {
// This condition won't hold if I process anything
// except NUL-terminated strings!
if(index > size - 1 - (long)sizeof(u_int16_t))
break;
cursor = buffer + index;
value = UINT16ARRAY(cursor);
g_debug("system value = %d", value);
switch(value) {
case 0:
index += 2;
cursor = buffer + index;
chmfile->hhc = g_strdup_printf("/%s", buffer + index + 2);
g_debug("hhc %s", chmfile->hhc);
break;
case 1:
index += 2;
cursor = buffer + index;
chmfile->hhk = g_strdup_printf("/%s", buffer + index + 2);
g_debug("hhk %s", chmfile->hhk);
break;
case 2:
index += 2;
cursor = buffer + index;
chmfile->home = g_strdup_printf("/%s", buffer + index + 2);
g_debug("home %s", chmfile->home);
break;
case 3:
index += 2;
cursor = buffer + index;
chmfile->title = g_strdup((char *)buffer + index + 2);
g_debug("title %s", chmfile->title);
break;
case 4: // LCID stuff
index += 2;
cursor = buffer + index;
lcid = UINT32ARRAY(buffer + index + 2);
g_debug("lcid %x", lcid);
chmfile->encoding = get_encoding_by_lcid(lcid);
break;
case 6:
index += 2;
cursor = buffer + index;
if(!chmfile->hhc) {
char *hhc, *hhk;
hhc = g_strdup_printf("/%s.hhc", buffer + index + 2);
hhk = g_strdup_printf("/%s.hhk", buffer + index + 2);
if (chm_resolve_object(cfd, hhc, &ui) == CHM_RESOLVE_SUCCESS)
chmfile->hhc = hhc;
if (chm_resolve_object(cfd, hhk, &ui) == CHM_RESOLVE_SUCCESS)
chmfile->hhk = hhk;
}
break;
case 16:
index += 2;
cursor = buffer + index;
g_debug("font %s", buffer + index + 2);
break;
default:
index += 2;
cursor = buffer + index;
}
value = UINT16ARRAY(cursor);
index += value + 2;
}
}
/*
* callback function for enumerate API
*/
static int _print_ui(struct chmFile *h,
struct chmUnitInfo *ui,
void *context)
{
static char szBuf[128];
memset(szBuf, 0, 128);
if(ui->flags & CHM_ENUMERATE_NORMAL)
strcpy(szBuf, "normal ");
else if(ui->flags & CHM_ENUMERATE_SPECIAL)
strcpy(szBuf, "special ");
else if(ui->flags & CHM_ENUMERATE_META)
strcpy(szBuf, "meta ");
if(ui->flags & CHM_ENUMERATE_DIRS)
strcat(szBuf, "dir");
else if(ui->flags & CHM_ENUMERATE_FILES)
strcat(szBuf, "file");
struct chmfile * f = (struct chmfile*)context;
if(f && f->filename && strlen(f->filename)) {
if(strcmp(f->filename,ui->path)==0) {
//printf("resolving %s\n", (char*)f->filename);
if (CHM_RESOLVE_SUCCESS == chm_resolve_object(h,
f->filename,
ui))
{
f->data = malloc(ui->length+1);
memset(f->data ,0,ui->length+1);
/*
printf(" object: <%d, %lu, %lu>\n",
ui->space,
(unsigned long)ui->start,
(unsigned long)ui->length);
*/
chm_retrieve_object(h, ui, (unsigned char*)f->data, 0, ui->length);
f->len = ui->length+1;
return CHM_ENUMERATOR_SUCCESS;
}
}
}else{
char out[1024];
memset(out,0,sizeof(1024));
sprintf(out," %1d %8d %8d %s\t\t%s\n",
(int)ui->space,
(int)ui->start,
(int)ui->length,
szBuf,
ui->path);
if(f->data==NULL){
f->data = malloc(strlen(out)+1);
memset(f->data,0,strlen(out)+1);
f->len = strlen(out)+1;
}else{
f->data = realloc(f->data,f->len+strlen(out));
f->len += strlen(out);
}
//sprintf(f->data+strlen(f->data),"%s",out);
strcat(f->data,out);
}
return CHM_ENUMERATOR_CONTINUE;
}
bool chm_read(chm_t* chm, FILE* fd) {
if (fseek(fd, 0, SEEK_SET) != 0)
return false;
unsigned char sbuffer[256];
unsigned int sremain;
unsigned char *sbufpos;
chm_unitinfo uiLzxc;
chm_lzxc_ctldata ctlData;
memset(&uiLzxc, 0, sizeof(uiLzxc));
memset(&ctlData, 0, sizeof(ctlData));
chm->fd = fd;
chm->lzx_state = NULL;
chm->cache_blocks = NULL;
chm->cache_block_indices = NULL;
chm->cache_num_blocks = 0;
/* read and verify header */
sremain = CHM_ITSF_V3_LEN;
sbufpos = sbuffer;
if (_chm_fetch_bytes(chm, sbuffer, (uqword)0, sremain) != sremain ||
!_unmarshal_itsf_header(&sbufpos, &sremain, &chm->itsf)) {
return false;
}
/* stash important values from header */
chm->dir_offset = chm->itsf.dir_offset;
chm->dir_len = chm->itsf.dir_len;
chm->data_offset = chm->itsf.data_offset;
/* now, read and verify the directory header chunk */
sremain = CHM_ITSP_V1_LEN;
sbufpos = sbuffer;
if (_chm_fetch_bytes(chm, sbuffer,
(uqword)chm->itsf.dir_offset, sremain) != sremain ||
!_unmarshal_itsp_header(&sbufpos, &sremain, &chm->itsp)) {
return false;
}
/* grab essential information from ITSP header */
chm->dir_offset += chm->itsp.header_len;
chm->dir_len -= chm->itsp.header_len;
chm->index_root = chm->itsp.index_root;
chm->index_head = chm->itsp.index_head;
chm->block_len = chm->itsp.block_len;
/* if the index root is -1, this means we don't have any PMGI blocks.
* as a result, we must use the sole PMGL block as the index root
*/
if (chm->index_root <= -1)
chm->index_root = chm->index_head;
/* By default, compression is enabled. */
chm->compression_enabled = 1;
/* prefetch most commonly needed unit infos */
if (CHM_RESOLVE_SUCCESS != chm_resolve_object(chm,
_CHMU_RESET_TABLE,
&chm->rt_unit) ||
chm->rt_unit.space == CHM_COMPRESSED ||
CHM_RESOLVE_SUCCESS != chm_resolve_object(chm,
_CHMU_CONTENT,
&chm->cn_unit) ||
chm->cn_unit.space == CHM_COMPRESSED ||
CHM_RESOLVE_SUCCESS != chm_resolve_object(chm,
_CHMU_LZXC_CONTROLDATA,
&uiLzxc) ||
uiLzxc.space == CHM_COMPRESSED)
{
chm->compression_enabled = 0;
}
/* read reset table info */
if (chm->compression_enabled)
{
sremain = CHM_LZXC_RESETTABLE_V1_LEN;
sbufpos = sbuffer;
if (chm_retrieve_object(chm, &chm->rt_unit, sbuffer,
0, sremain) != sremain ||
!_unmarshal_lzxc_reset_table(&sbufpos, &sremain,
&chm->reset_table))
{
chm->compression_enabled = 0;
}
}
/* read control data */
if (chm->compression_enabled)
{
sremain = (unsigned int)uiLzxc.length;
if (uiLzxc.length > sizeof(sbuffer))
{
return false;
}
sbufpos = sbuffer;
if (chm_retrieve_object(chm, &uiLzxc, sbuffer,
0, sremain) != sremain ||
!_unmarshal_lzxc_control_data(&sbufpos, &sremain,
&ctlData))
{
chm->compression_enabled = 0;
}
chm->window_size = ctlData.windowSize;
chm->reset_interval = ctlData.resetInterval;
chm->reset_blkcount = chm->reset_interval /
(chm->window_size / 2) *
ctlData.windowsPerReset;
}
/* initialize cache */
chm_set_param(chm, CHM_PARAM_MAX_BLOCKS_CACHED,
CHM_MAX_BLOCKS_CACHED);
return true;
}
