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wine/dlls/wininet/urlcache.c
Zhiyi Zhang d36f50c438 wininet: Fix a use-after-free (Coverity). 
pEntry could be freed after cache_container_unlock_index(pContainer, pHeader).
2023-12-04 22:10:22 +01:00

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/*
* Wininet - Url Cache functions
*
* Copyright 2001,2002 CodeWeavers
* Copyright 2003-2008 Robert Shearman
*
* Eric Kohl
* Aric Stewart
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include "ws2tcpip.h"
#include <limits.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include "windef.h"
#include "winbase.h"
#include "winuser.h"
#include "wininet.h"
#include "winineti.h"
#include "winerror.h"
#include "winreg.h"
#include "shlwapi.h"
#include "shlobj.h"
#include "shellapi.h"
#include "internet.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(wininet);
static const char urlcache_ver_prefix[] = "WINE URLCache Ver ";
static const char urlcache_ver[] = "0.2012001";
#define ENTRY_START_OFFSET 0x4000
#define DIR_LENGTH 8
#define MAX_DIR_NO 0x20
#define BLOCKSIZE 128
#define HASHTABLE_SIZE 448
#define HASHTABLE_NUM_ENTRIES 64 /* this needs to be power of 2, that divides HASHTABLE_SIZE */
#define HASHTABLE_BLOCKSIZE (HASHTABLE_SIZE / HASHTABLE_NUM_ENTRIES)
#define ALLOCATION_TABLE_OFFSET 0x250
#define ALLOCATION_TABLE_SIZE (ENTRY_START_OFFSET - ALLOCATION_TABLE_OFFSET)
#define MIN_BLOCK_NO 0x80
#define MAX_BLOCK_NO (ALLOCATION_TABLE_SIZE * CHAR_BIT)
#define FILE_SIZE(blocks) ((blocks) * BLOCKSIZE + ENTRY_START_OFFSET)
#define HASHTABLE_URL 0
#define HASHTABLE_DEL 1
#define HASHTABLE_LOCK 2
#define HASHTABLE_FREE 3
#define HASHTABLE_REDR 5
#define HASHTABLE_FLAG_BITS 6
#define PENDING_DELETE_CACHE_ENTRY 0x00400000
#define INSTALLED_CACHE_ENTRY 0x10000000
#define GET_INSTALLED_ENTRY 0x200
#define CACHE_CONTAINER_NO_SUBDIR 0xFE
#define CACHE_HEADER_DATA_ROOT_LEAK_OFFSET 0x16
#define FILETIME_SECOND 10000000
#define DWORD_SIG(a,b,c,d) (a | (b << 8) | (c << 16) | (d << 24))
#define URL_SIGNATURE DWORD_SIG('U','R','L',' ')
#define REDR_SIGNATURE DWORD_SIG('R','E','D','R')
#define LEAK_SIGNATURE DWORD_SIG('L','E','A','K')
#define HASH_SIGNATURE DWORD_SIG('H','A','S','H')
#define DWORD_ALIGN(x) ( (DWORD)(((DWORD)(x)+sizeof(DWORD)-1)/sizeof(DWORD))*sizeof(DWORD) )
#define URLCACHE_FIND_ENTRY_HANDLE_MAGIC 0xF389ABCD
typedef struct
{
DWORD signature;
DWORD blocks_used; /* number of 128byte blocks used by this entry */
} entry_header;
typedef struct
{
entry_header header;
FILETIME modification_time;
FILETIME access_time;
WORD expire_date; /* expire date in dos format */
WORD expire_time; /* expire time in dos format */
DWORD unk1; /* usually zero */
ULARGE_INTEGER size; /* see INTERNET_CACHE_ENTRY_INFO::dwSizeLow/High */
DWORD unk2; /* usually zero */
DWORD exempt_delta; /* see INTERNET_CACHE_ENTRY_INFO::dwExemptDelta */
DWORD unk3; /* usually 0x60 */
DWORD url_off; /* offset of start of url from start of entry */
BYTE cache_dir; /* index of cache directory this url is stored in */
BYTE unk4; /* usually zero */
WORD unk5; /* usually 0x1010 */
DWORD local_name_off; /* offset of start of local filename from start of entry */
DWORD cache_entry_type; /* see INTERNET_CACHE_ENTRY_INFO::CacheEntryType */
DWORD header_info_off; /* offset of start of header info from start of entry */
DWORD header_info_size;
DWORD file_extension_off; /* offset of start of file extension from start of entry */
WORD sync_date; /* last sync date in dos format */
WORD sync_time; /* last sync time in dos format */
DWORD hit_rate; /* see INTERNET_CACHE_ENTRY_INFO::dwHitRate */
DWORD use_count; /* see INTERNET_CACHE_ENTRY_INFO::dwUseCount */
WORD write_date;
WORD write_time;
DWORD unk7; /* usually zero */
DWORD unk8; /* usually zero */
/* packing to dword align start of next field */
/* CHAR szSourceUrlName[]; (url) */
/* packing to dword align start of next field */
/* CHAR szLocalFileName[]; (local file name excluding path) */
/* packing to dword align start of next field */
/* CHAR szHeaderInfo[]; (header info) */
} entry_url;
struct hash_entry
{
DWORD key;
DWORD offset;
};
typedef struct
{
entry_header header;
DWORD next;
DWORD id;
struct hash_entry hash_table[HASHTABLE_SIZE];
} entry_hash_table;
typedef struct
{
char signature[28];
DWORD size;
DWORD hash_table_off;
DWORD capacity_in_blocks;
DWORD blocks_in_use;
DWORD unk1;
ULARGE_INTEGER cache_limit;
ULARGE_INTEGER cache_usage;
ULARGE_INTEGER exempt_usage;
DWORD dirs_no;
struct _directory_data
{
DWORD files_no;
char name[DIR_LENGTH];
} directory_data[MAX_DIR_NO];
DWORD options[0x21];
BYTE allocation_table[ALLOCATION_TABLE_SIZE];
} urlcache_header;
typedef struct
{
HANDLE file;
CHAR url[1];
} stream_handle;
typedef struct
{
struct list entry; /* part of a list */
char *cache_prefix; /* string that has to be prefixed for this container to be used */
LPWSTR path; /* path to url container directory */
HANDLE mapping; /* handle of file mapping */
DWORD file_size; /* size of file when mapping was opened */
HANDLE mutex; /* handle of mutex */
DWORD default_entry_type;
} cache_container;
typedef struct
{
DWORD magic;
char *url_search_pattern;
DWORD container_idx;
DWORD hash_table_idx;
DWORD hash_entry_idx;
} find_handle;
/* List of all containers available */
static struct list UrlContainers = LIST_INIT(UrlContainers);
static inline char *strdupWtoUTF8(const WCHAR *str)
{
char *ret = NULL;
if(str) {
DWORD size = WideCharToMultiByte(CP_UTF8, 0, str, -1, NULL, 0, NULL, NULL);
ret = malloc(size);
if(ret)
WideCharToMultiByte(CP_UTF8, 0, str, -1, ret, size, NULL, NULL);
}
return ret;
}
/***********************************************************************
* urlcache_block_is_free (Internal)
*
* Is the specified block number free?
*
* RETURNS
* zero if free
* non-zero otherwise
*
*/
static inline BYTE urlcache_block_is_free(BYTE *allocation_table, DWORD block_number)
{
BYTE mask = 1 << (block_number%CHAR_BIT);
return (allocation_table[block_number/CHAR_BIT] & mask) == 0;
}
/***********************************************************************
* urlcache_block_free (Internal)
*
* Marks the specified block as free
*
* CAUTION
* this function is not updating used blocks count
*
* RETURNS
* nothing
*
*/
static inline void urlcache_block_free(BYTE *allocation_table, DWORD block_number)
{
BYTE mask = ~(1 << (block_number%CHAR_BIT));
allocation_table[block_number/CHAR_BIT] &= mask;
}
/***********************************************************************
* urlcache_block_alloc (Internal)
*
* Marks the specified block as allocated
*
* CAUTION
* this function is not updating used blocks count
*
* RETURNS
* nothing
*
*/
static inline void urlcache_block_alloc(BYTE *allocation_table, DWORD block_number)
{
BYTE mask = 1 << (block_number%CHAR_BIT);
allocation_table[block_number/CHAR_BIT] |= mask;
}
/***********************************************************************
* urlcache_entry_alloc (Internal)
*
* Finds and allocates the first block of free space big enough and
* sets entry to point to it.
*
* RETURNS
* ERROR_SUCCESS when free memory block was found
* Any other Win32 error code if the entry could not be added
*
*/
static DWORD urlcache_entry_alloc(urlcache_header *header, DWORD blocks_needed, entry_header **entry)
{
DWORD block, block_size;
for(block=0; block<header->capacity_in_blocks; block+=block_size+1)
{
block_size = 0;
while(block_size<blocks_needed && block_size+block<header->capacity_in_blocks
&& urlcache_block_is_free(header->allocation_table, block+block_size))
block_size++;
if(block_size == blocks_needed)
{
DWORD index;
TRACE("Found free blocks starting at no. %ld (0x%lx)\n", block, ENTRY_START_OFFSET+block*BLOCKSIZE);
for(index=0; index<blocks_needed; index++)
urlcache_block_alloc(header->allocation_table, block+index);
*entry = (entry_header*)((BYTE*)header+ENTRY_START_OFFSET+block*BLOCKSIZE);
for(index=0; index<blocks_needed*BLOCKSIZE/sizeof(DWORD); index++)
((DWORD*)*entry)[index] = 0xdeadbeef;
(*entry)->blocks_used = blocks_needed;
header->blocks_in_use += blocks_needed;
return ERROR_SUCCESS;
}
}
return ERROR_HANDLE_DISK_FULL;
}
/***********************************************************************
* urlcache_entry_free (Internal)
*
* Deletes the specified entry and frees the space allocated to it
*
* RETURNS
* TRUE if it succeeded
* FALSE if it failed
*
*/
static BOOL urlcache_entry_free(urlcache_header *header, entry_header *entry)
{
DWORD start_block, block;
/* update allocation table */
start_block = ((DWORD)((BYTE*)entry - (BYTE*)header) - ENTRY_START_OFFSET) / BLOCKSIZE;
for(block = start_block; block < start_block+entry->blocks_used; block++)
urlcache_block_free(header->allocation_table, block);
header->blocks_in_use -= entry->blocks_used;
return TRUE;
}
/***********************************************************************
* urlcache_create_hash_table (Internal)
*
* Creates a new hash table in free space and adds it to the chain of existing
* hash tables.
*
* RETURNS
* ERROR_SUCCESS if the hash table was created
* ERROR_DISK_FULL if the hash table could not be created
*
*/
static DWORD urlcache_create_hash_table(urlcache_header *header, entry_hash_table *hash_table_prev, entry_hash_table **hash_table)
{
DWORD dwOffset, error;
int i;
if((error = urlcache_entry_alloc(header, 0x20, (entry_header**)hash_table)) != ERROR_SUCCESS)
return error;
dwOffset = (BYTE*)*hash_table-(BYTE*)header;
if(hash_table_prev)
hash_table_prev->next = dwOffset;
else
header->hash_table_off = dwOffset;
(*hash_table)->header.signature = HASH_SIGNATURE;
(*hash_table)->next = 0;
(*hash_table)->id = hash_table_prev ? hash_table_prev->id+1 : 0;
for(i = 0; i < HASHTABLE_SIZE; i++) {
(*hash_table)->hash_table[i].offset = HASHTABLE_FREE;
(*hash_table)->hash_table[i].key = HASHTABLE_FREE;
}
return ERROR_SUCCESS;
}
/***********************************************************************
* cache_container_create_object_name (Internal)
*
* Converts a path to a name suitable for use as a Win32 object name.
* Replaces '\\' characters in-place with the specified character
* (usually '_' or '!')
*
* RETURNS
* nothing
*
*/
static void cache_container_create_object_name(LPWSTR lpszPath, WCHAR replace)
{
for (; *lpszPath; lpszPath++)
{
if (*lpszPath == '\\')
*lpszPath = replace;
}
}
/* Caller must hold container lock */
static HANDLE cache_container_map_index(HANDLE file, const WCHAR *path, DWORD size, BOOL *validate)
{
WCHAR mapping_name[MAX_PATH];
HANDLE mapping;
wsprintfW(mapping_name, L"%sindex.dat_%lu", path, size);
cache_container_create_object_name(mapping_name, '_');
mapping = OpenFileMappingW(FILE_MAP_WRITE, FALSE, mapping_name);
if(mapping) {
if(validate) *validate = FALSE;
return mapping;
}
if(validate) *validate = TRUE;
return CreateFileMappingW(file, NULL, PAGE_READWRITE, 0, 0, mapping_name);
}
/* Caller must hold container lock */
static DWORD cache_container_set_size(cache_container *container, HANDLE file, DWORD blocks_no)
{
DWORD file_size = FILE_SIZE(blocks_no);
WCHAR dir_path[MAX_PATH], *dir_name;
entry_hash_table *hashtable_entry;
urlcache_header *header;
HANDLE mapping;
FILETIME ft;
HKEY key;
int i, j;
if(SetFilePointer(file, file_size, NULL, FILE_BEGIN) == INVALID_SET_FILE_POINTER)
return GetLastError();
if(!SetEndOfFile(file))
return GetLastError();
mapping = cache_container_map_index(file, container->path, file_size, NULL);
if(!mapping)
return GetLastError();
header = MapViewOfFile(mapping, FILE_MAP_WRITE, 0, 0, 0);
if(!header) {
CloseHandle(mapping);
return GetLastError();
}
if(blocks_no != MIN_BLOCK_NO) {
if(file_size > header->size)
memset((char*)header+header->size, 0, file_size-header->size);
header->size = file_size;
header->capacity_in_blocks = blocks_no;
UnmapViewOfFile(header);
CloseHandle(container->mapping);
container->mapping = mapping;
container->file_size = file_size;
return ERROR_SUCCESS;
}
memset(header, 0, file_size);
/* First set some constants and defaults in the header */
memcpy(header->signature, urlcache_ver_prefix, sizeof(urlcache_ver_prefix)-1);
memcpy(header->signature+sizeof(urlcache_ver_prefix)-1, urlcache_ver, sizeof(urlcache_ver)-1);
header->size = file_size;
header->capacity_in_blocks = blocks_no;
/* 127MB - taken from default for Windows 2000 */
header->cache_limit.QuadPart = 0x07ff5400;
/* Copied from a Windows 2000 cache index */
header->dirs_no = container->default_entry_type==NORMAL_CACHE_ENTRY ? 4 : 0;
/* If the registry has a cache size set, use the registry value */
if(RegOpenKeyW(HKEY_CURRENT_USER,
L"Software\\Microsoft\\Windows\\CurrentVersion\\Internet Settings\\Cache\\Content", &key) == ERROR_SUCCESS) {
DWORD dw, len = sizeof(dw), keytype;
if(RegQueryValueExW(key, L"CacheLimit", NULL, &keytype, (BYTE*)&dw, &len) == ERROR_SUCCESS &&
keytype == REG_DWORD)
header->cache_limit.QuadPart = (ULONGLONG)dw * 1024;
RegCloseKey(key);
}
urlcache_create_hash_table(header, NULL, &hashtable_entry);
/* Last step - create the directories */
lstrcpyW(dir_path, container->path);
dir_name = dir_path + lstrlenW(dir_path);
dir_name[8] = 0;
GetSystemTimeAsFileTime(&ft);
for(i=0; i<header->dirs_no; ++i) {
header->directory_data[i].files_no = 0;
for(j=0;; ++j) {
ULONGLONG n = ft.dwHighDateTime;
int k;
/* Generate a file name to attempt to create.
* This algorithm will create what will appear
* to be random and unrelated directory names
* of up to 9 characters in length.
*/
n <<= 32;
n += ft.dwLowDateTime;
n ^= ((ULONGLONG) i << 56) | ((ULONGLONG) j << 48);
for(k = 0; k < 8; ++k) {
int r = (n % 36);
/* Dividing by a prime greater than 36 helps
* with the appearance of randomness
*/
n /= 37;
if(r < 10)
dir_name[k] = '0' + r;
else
dir_name[k] = 'A' + (r - 10);
}
if(CreateDirectoryW(dir_path, 0)) {
/* The following is OK because we generated an
* 8 character directory name made from characters
* [A-Z0-9], which are equivalent for all code
* pages and for UTF-16
*/
for (k = 0; k < 8; ++k)
header->directory_data[i].name[k] = dir_name[k];
break;
}else if(j >= 255) {
/* Give up. The most likely cause of this
* is a full disk, but whatever the cause
* is, it should be more than apparent that
* we won't succeed.
*/
UnmapViewOfFile(header);
CloseHandle(mapping);
return GetLastError();
}
}
}
UnmapViewOfFile(header);
CloseHandle(container->mapping);
container->mapping = mapping;
container->file_size = file_size;
return ERROR_SUCCESS;
}
static BOOL cache_container_is_valid(urlcache_header *header, DWORD file_size)
{
DWORD allocation_size, count_bits, i;
if(file_size < FILE_SIZE(MIN_BLOCK_NO))
return FALSE;
if(file_size != header->size)
return FALSE;
if (!memcmp(header->signature, urlcache_ver_prefix, sizeof(urlcache_ver_prefix)-1) &&
memcmp(header->signature+sizeof(urlcache_ver_prefix)-1, urlcache_ver, sizeof(urlcache_ver)-1))
return FALSE;
if(FILE_SIZE(header->capacity_in_blocks) != file_size)
return FALSE;
allocation_size = 0;
for(i=0; i<header->capacity_in_blocks/8; i++) {
for(count_bits = header->allocation_table[i]; count_bits!=0; count_bits>>=1) {
if(count_bits & 1)
allocation_size++;
}
}
if(allocation_size != header->blocks_in_use)
return FALSE;
for(; i<ALLOCATION_TABLE_SIZE; i++) {
if(header->allocation_table[i])
return FALSE;
}
return TRUE;
}
/***********************************************************************
* cache_container_open_index (Internal)
*
* Opens the index file and saves mapping handle
*
* RETURNS
* ERROR_SUCCESS if succeeded
* Any other Win32 error code if failed
*
*/
static DWORD cache_container_open_index(cache_container *container, DWORD blocks_no)
{
HANDLE file;
WCHAR index_path[MAX_PATH];
DWORD file_size;
BOOL validate;
WaitForSingleObject(container->mutex, INFINITE);
if(container->mapping) {
ReleaseMutex(container->mutex);
return ERROR_SUCCESS;
}
lstrcpyW(index_path, container->path);
lstrcatW(index_path, L"index.dat");
file = CreateFileW(index_path, GENERIC_READ|GENERIC_WRITE, FILE_SHARE_READ|FILE_SHARE_WRITE, NULL, OPEN_ALWAYS, 0, NULL);
if(file == INVALID_HANDLE_VALUE) {
/* Maybe the directory wasn't there? Try to create it */
if(CreateDirectoryW(container->path, 0))
file = CreateFileW(index_path, GENERIC_READ|GENERIC_WRITE, FILE_SHARE_READ|FILE_SHARE_WRITE, NULL, OPEN_ALWAYS, 0, NULL);
}
if(file == INVALID_HANDLE_VALUE) {
TRACE("Could not open or create cache index file \"%s\"\n", debugstr_w(index_path));
ReleaseMutex(container->mutex);
return GetLastError();
}
file_size = GetFileSize(file, NULL);
if(file_size == INVALID_FILE_SIZE) {
CloseHandle(file);
ReleaseMutex(container->mutex);
return GetLastError();
}
if(blocks_no < MIN_BLOCK_NO)
blocks_no = MIN_BLOCK_NO;
else if(blocks_no > MAX_BLOCK_NO)
blocks_no = MAX_BLOCK_NO;
if(file_size < FILE_SIZE(blocks_no)) {
DWORD ret = cache_container_set_size(container, file, blocks_no);
CloseHandle(file);
ReleaseMutex(container->mutex);
return ret;
}
container->file_size = file_size;
container->mapping = cache_container_map_index(file, container->path, file_size, &validate);
CloseHandle(file);
if(container->mapping && validate) {
urlcache_header *header = MapViewOfFile(container->mapping, FILE_MAP_WRITE, 0, 0, 0);
if(header && !cache_container_is_valid(header, file_size)) {
WARN("detected old or broken index.dat file\n");
UnmapViewOfFile(header);
FreeUrlCacheSpaceW(container->path, 100, 0);
}else if(header) {
UnmapViewOfFile(header);
}else {
CloseHandle(container->mapping);
container->mapping = NULL;
}
}
if(!container->mapping)
{
ERR("Couldn't create file mapping (error is %ld)\n", GetLastError());
ReleaseMutex(container->mutex);
return GetLastError();
}
ReleaseMutex(container->mutex);
return ERROR_SUCCESS;
}
/***********************************************************************
* cache_container_close_index (Internal)
*
* Closes the index
*
* RETURNS
* nothing
*
*/
static void cache_container_close_index(cache_container *pContainer)
{
CloseHandle(pContainer->mapping);
pContainer->mapping = NULL;
}
static BOOL cache_containers_add(const char *cache_prefix, LPCWSTR path,
DWORD default_entry_type, LPWSTR mutex_name)
{
cache_container *pContainer = malloc(sizeof(cache_container));
int cache_prefix_len = strlen(cache_prefix);
if (!pContainer)
{
return FALSE;
}
pContainer->mapping = NULL;
pContainer->file_size = 0;
pContainer->default_entry_type = default_entry_type;
pContainer->path = wcsdup(path);
if (!pContainer->path)
{
free(pContainer);
return FALSE;
}
pContainer->cache_prefix = malloc(cache_prefix_len+1);
if (!pContainer->cache_prefix)
{
free(pContainer->path);
free(pContainer);
return FALSE;
}
memcpy(pContainer->cache_prefix, cache_prefix, cache_prefix_len+1);
CharLowerW(mutex_name);
cache_container_create_object_name(mutex_name, '!');
if ((pContainer->mutex = CreateMutexW(NULL, FALSE, mutex_name)) == NULL)
{
ERR("couldn't create mutex (error is %ld)\n", GetLastError());
free(pContainer->path);
free(pContainer);
return FALSE;
}
list_add_head(&UrlContainers, &pContainer->entry);
return TRUE;
}
static void cache_container_delete_container(cache_container *pContainer)
{
list_remove(&pContainer->entry);
cache_container_close_index(pContainer);
CloseHandle(pContainer->mutex);
free(pContainer->path);
free(pContainer->cache_prefix);
free(pContainer);
}
static void cache_containers_init(void)
{
static const struct
{
int nFolder; /* CSIDL_* constant */
const WCHAR *shpath_suffix; /* suffix on path returned by SHGetSpecialFolderPath */
const char *cache_prefix; /* prefix used to reference the container */
DWORD default_entry_type;
} DefaultContainerData[] =
{
{ CSIDL_INTERNET_CACHE, L"Content.IE5", "", NORMAL_CACHE_ENTRY },
{ CSIDL_HISTORY, L"History.IE5", "Visited:", URLHISTORY_CACHE_ENTRY },
{ CSIDL_COOKIES, L"", "Cookie:", COOKIE_CACHE_ENTRY },
};
DWORD i;
for (i = 0; i < ARRAY_SIZE(DefaultContainerData); i++)
{
WCHAR wszCachePath[MAX_PATH];
WCHAR wszMutexName[MAX_PATH];
int path_len, suffix_len;
BOOL def_char;
if (!SHGetSpecialFolderPathW(NULL, wszCachePath, DefaultContainerData[i].nFolder, TRUE))
{
ERR("Couldn't get path for default container %lu\n", i);
continue;
}
path_len = lstrlenW(wszCachePath);
suffix_len = lstrlenW(DefaultContainerData[i].shpath_suffix);
if (path_len + suffix_len + 2 > MAX_PATH)
{
ERR("Path too long\n");
continue;
}
wszCachePath[path_len] = '\\';
wszCachePath[path_len+1] = 0;
lstrcpyW(wszMutexName, wszCachePath);
if (suffix_len)
{
memcpy(wszCachePath + path_len + 1, DefaultContainerData[i].shpath_suffix, (suffix_len + 1) * sizeof(WCHAR));
wszCachePath[path_len + suffix_len + 1] = '\\';
wszCachePath[path_len + suffix_len + 2] = '\0';
}
if (!WideCharToMultiByte(CP_ACP, WC_NO_BEST_FIT_CHARS, wszCachePath, path_len,
NULL, 0, NULL, &def_char) || def_char)
{
WCHAR tmp[MAX_PATH];
/* cannot convert path to ANSI code page */
if (!(path_len = GetShortPathNameW(wszCachePath, tmp, MAX_PATH)) ||
!WideCharToMultiByte(CP_ACP, WC_NO_BEST_FIT_CHARS, tmp, path_len,
NULL, 0, NULL, &def_char) || def_char)
ERR("Can't create container path accessible by ANSI functions\n");
else
memcpy(wszCachePath, tmp, (path_len+1)*sizeof(WCHAR));
}
cache_containers_add(DefaultContainerData[i].cache_prefix, wszCachePath,
DefaultContainerData[i].default_entry_type, wszMutexName);
}
}
static void cache_containers_free(void)
{
while(!list_empty(&UrlContainers))
cache_container_delete_container(
LIST_ENTRY(list_head(&UrlContainers), cache_container, entry)
);
}
static DWORD cache_containers_find(const char *url, cache_container **ret)
{
cache_container *container;
TRACE("searching for prefix for URL: %s\n", debugstr_a(url));
if(!url)
return ERROR_INVALID_PARAMETER;
LIST_FOR_EACH_ENTRY(container, &UrlContainers, cache_container, entry)
{
int prefix_len = strlen(container->cache_prefix);
if(!strncmp(container->cache_prefix, url, prefix_len)) {
TRACE("found container with prefix %s\n", debugstr_a(container->cache_prefix));
*ret = container;
return ERROR_SUCCESS;
}
}
ERR("no container found\n");
return ERROR_FILE_NOT_FOUND;
}
static BOOL cache_containers_enum(char *search_pattern, DWORD index, cache_container **ret)
{
DWORD i = 0;
cache_container *container;
TRACE("searching for prefix: %s\n", debugstr_a(search_pattern));
/* non-NULL search pattern only returns one container ever */
if (search_pattern && index > 0)
return FALSE;
LIST_FOR_EACH_ENTRY(container, &UrlContainers, cache_container, entry)
{
if (search_pattern)
{
if (!strcmp(container->cache_prefix, search_pattern))
{
TRACE("found container with prefix %s\n", debugstr_a(container->cache_prefix));
*ret = container;
return TRUE;
}
}
else
{
if (i == index)
{
TRACE("found container with prefix %s\n", debugstr_a(container->cache_prefix));
*ret = container;
return TRUE;
}
}
i++;
}
return FALSE;
}
/***********************************************************************
* cache_container_lock_index (Internal)
*
* Locks the index for system-wide exclusive access.
*
* RETURNS
* Cache file header if successful
* NULL if failed and calls SetLastError.
*/
static urlcache_header* cache_container_lock_index(cache_container *pContainer)
{
BYTE index;
LPVOID pIndexData;
urlcache_header* pHeader;
DWORD error;
/* acquire mutex */
WaitForSingleObject(pContainer->mutex, INFINITE);
pIndexData = MapViewOfFile(pContainer->mapping, FILE_MAP_WRITE, 0, 0, 0);
if (!pIndexData)
{
ReleaseMutex(pContainer->mutex);
ERR("Couldn't MapViewOfFile. Error: %ld\n", GetLastError());
return NULL;
}
pHeader = (urlcache_header*)pIndexData;
/* file has grown - we need to remap to prevent us getting
* access violations when we try and access beyond the end
* of the memory mapped file */
if (pHeader->size != pContainer->file_size)
{
UnmapViewOfFile( pHeader );
cache_container_close_index(pContainer);
error = cache_container_open_index(pContainer, MIN_BLOCK_NO);
if (error != ERROR_SUCCESS)
{
ReleaseMutex(pContainer->mutex);
SetLastError(error);
return NULL;
}
pIndexData = MapViewOfFile(pContainer->mapping, FILE_MAP_WRITE, 0, 0, 0);
if (!pIndexData)
{
ReleaseMutex(pContainer->mutex);
ERR("Couldn't MapViewOfFile. Error: %ld\n", GetLastError());
return NULL;
}
pHeader = (urlcache_header*)pIndexData;
}
TRACE("Signature: %s, file size: %ld bytes\n", pHeader->signature, pHeader->size);
for (index = 0; index < pHeader->dirs_no; index++)
{
TRACE("Directory[%d] = \"%.8s\"\n", index, pHeader->directory_data[index].name);
}
return pHeader;
}
/***********************************************************************
* cache_container_unlock_index (Internal)
*
*/
static BOOL cache_container_unlock_index(cache_container *pContainer, urlcache_header *pHeader)
{
/* release mutex */
ReleaseMutex(pContainer->mutex);
return UnmapViewOfFile(pHeader);
}
/***********************************************************************
* urlcache_create_file_pathW (Internal)
*
* Copies the full path to the specified buffer given the local file
* name and the index of the directory it is in. Always sets value in
* lpBufferSize to the required buffer size (in bytes).
*
* RETURNS
* TRUE if the buffer was big enough
* FALSE if the buffer was too small
*
*/
static BOOL urlcache_create_file_pathW(
const cache_container *pContainer,
const urlcache_header *pHeader,
LPCSTR szLocalFileName,
BYTE Directory,
LPWSTR wszPath,
LPLONG lpBufferSize,
BOOL trunc_name)
{
LONG nRequired;
int path_len = lstrlenW(pContainer->path);
int file_name_len = MultiByteToWideChar(CP_ACP, 0, szLocalFileName, -1, NULL, 0);
if (Directory!=CACHE_CONTAINER_NO_SUBDIR && Directory>=pHeader->dirs_no)
{
*lpBufferSize = 0;
return FALSE;
}
nRequired = (path_len + file_name_len) * sizeof(WCHAR);
if(Directory != CACHE_CONTAINER_NO_SUBDIR)
nRequired += (DIR_LENGTH + 1) * sizeof(WCHAR);
if (trunc_name && nRequired >= *lpBufferSize)
nRequired = *lpBufferSize;
if (nRequired <= *lpBufferSize)
{
int dir_len;
memcpy(wszPath, pContainer->path, path_len * sizeof(WCHAR));
if (Directory != CACHE_CONTAINER_NO_SUBDIR)
{
dir_len = MultiByteToWideChar(CP_ACP, 0, pHeader->directory_data[Directory].name, DIR_LENGTH, wszPath + path_len, DIR_LENGTH);
wszPath[dir_len + path_len] = '\\';
dir_len++;
}
else
{
dir_len = 0;
}
MultiByteToWideChar(CP_ACP, 0, szLocalFileName, -1, wszPath + dir_len + path_len,
*lpBufferSize/sizeof(WCHAR)-dir_len-path_len);
wszPath[*lpBufferSize/sizeof(WCHAR)-1] = 0;
*lpBufferSize = nRequired;
return TRUE;
}
*lpBufferSize = nRequired;
return FALSE;
}
/***********************************************************************
* urlcache_create_file_pathA (Internal)
*
* Copies the full path to the specified buffer given the local file
* name and the index of the directory it is in. Always sets value in
* lpBufferSize to the required buffer size.
*
* RETURNS
* TRUE if the buffer was big enough
* FALSE if the buffer was too small
*
*/
static BOOL urlcache_create_file_pathA(
const cache_container *pContainer,
const urlcache_header *pHeader,
LPCSTR szLocalFileName,
BYTE Directory,
LPSTR szPath,
LPLONG lpBufferSize)
{
LONG nRequired;
int path_len, file_name_len, dir_len;
if (Directory!=CACHE_CONTAINER_NO_SUBDIR && Directory>=pHeader->dirs_no)
{
*lpBufferSize = 0;
return FALSE;
}
path_len = WideCharToMultiByte(CP_ACP, 0, pContainer->path, -1, NULL, 0, NULL, NULL) - 1;
file_name_len = strlen(szLocalFileName) + 1 /* for nul-terminator */;
if (Directory!=CACHE_CONTAINER_NO_SUBDIR)
dir_len = DIR_LENGTH+1;
else
dir_len = 0;
nRequired = (path_len + dir_len + file_name_len) * sizeof(char);
if (nRequired <= *lpBufferSize)
{
WideCharToMultiByte(CP_ACP, 0, pContainer->path, -1, szPath, path_len, NULL, NULL);
if(dir_len) {
memcpy(szPath+path_len, pHeader->directory_data[Directory].name, dir_len-1);
szPath[path_len + dir_len-1] = '\\';
}
memcpy(szPath + path_len + dir_len, szLocalFileName, file_name_len);
*lpBufferSize = nRequired;
return TRUE;
}
*lpBufferSize = nRequired;
return FALSE;
}
/* Just like FileTimeToDosDateTime, except that it also maps the special
* case of a filetime of (0,0) to a DOS date/time of (0,0).
*/
static void file_time_to_dos_date_time(const FILETIME *ft, WORD *fatdate,
WORD *fattime)
{
if (!ft->dwLowDateTime && !ft->dwHighDateTime)
*fatdate = *fattime = 0;
else
FileTimeToDosDateTime(ft, fatdate, fattime);
}
/***********************************************************************
* urlcache_delete_file (Internal)
*/
static DWORD urlcache_delete_file(const cache_container *container,
urlcache_header *header, entry_url *url_entry)
{
WIN32_FILE_ATTRIBUTE_DATA attr;
WCHAR path[MAX_PATH];
LONG path_size = sizeof(path);
DWORD err;
WORD date, time;
if(!url_entry->local_name_off)
goto succ;
if(!urlcache_create_file_pathW(container, header,
(LPCSTR)url_entry+url_entry->local_name_off,
url_entry->cache_dir, path, &path_size, FALSE))
goto succ;
if(!GetFileAttributesExW(path, GetFileExInfoStandard, &attr))
goto succ;
file_time_to_dos_date_time(&attr.ftLastWriteTime, &date, &time);
if(date != url_entry->write_date || time != url_entry->write_time)
goto succ;
err = (DeleteFileW(path) ? ERROR_SUCCESS : GetLastError());
if(err == ERROR_ACCESS_DENIED || err == ERROR_SHARING_VIOLATION)
return err;
succ:
if (url_entry->cache_dir < header->dirs_no)
{
if (header->directory_data[url_entry->cache_dir].files_no)
header->directory_data[url_entry->cache_dir].files_no--;
}
if (url_entry->cache_entry_type & STICKY_CACHE_ENTRY)
{
if (url_entry->size.QuadPart < header->exempt_usage.QuadPart)
header->exempt_usage.QuadPart -= url_entry->size.QuadPart;
else
header->exempt_usage.QuadPart = 0;
}
else
{
if (url_entry->size.QuadPart < header->cache_usage.QuadPart)
header->cache_usage.QuadPart -= url_entry->size.QuadPart;
else
header->cache_usage.QuadPart = 0;
}
return ERROR_SUCCESS;
}
static BOOL urlcache_clean_leaked_entries(cache_container *container, urlcache_header *header)
{
DWORD *leak_off;
BOOL freed = FALSE;
leak_off = &header->options[CACHE_HEADER_DATA_ROOT_LEAK_OFFSET];
while(*leak_off) {
entry_url *url_entry = (entry_url*)((LPBYTE)header + *leak_off);
if(SUCCEEDED(urlcache_delete_file(container, header, url_entry))) {
*leak_off = url_entry->exempt_delta;
urlcache_entry_free(header, &url_entry->header);
freed = TRUE;
}else {
leak_off = &url_entry->exempt_delta;
}
}
return freed;
}
/***********************************************************************
* cache_container_clean_index (Internal)
*
* This function is meant to make place in index file by removing leaked
* files entries and resizing the file.
*
* CAUTION: file view may get mapped to new memory
*
* RETURNS
* ERROR_SUCCESS when new memory is available
* error code otherwise
*/
static DWORD cache_container_clean_index(cache_container *container, urlcache_header **file_view)
{
urlcache_header *header = *file_view;
DWORD ret;
TRACE("(%s %s)\n", debugstr_a(container->cache_prefix), debugstr_w(container->path));
if(urlcache_clean_leaked_entries(container, header))
return ERROR_SUCCESS;
if(header->size >= ALLOCATION_TABLE_SIZE*8*BLOCKSIZE + ENTRY_START_OFFSET) {
WARN("index file has maximal size\n");
return ERROR_NOT_ENOUGH_MEMORY;
}
cache_container_close_index(container);
ret = cache_container_open_index(container, header->capacity_in_blocks*2);
if(ret != ERROR_SUCCESS)
return ret;
header = MapViewOfFile(container->mapping, FILE_MAP_WRITE, 0, 0, 0);
if(!header)
return GetLastError();
UnmapViewOfFile(*file_view);
*file_view = header;
return ERROR_SUCCESS;
}
/* Just like DosDateTimeToFileTime, except that it also maps the special
* case of a DOS date/time of (0,0) to a filetime of (0,0).
*/
static void dos_date_time_to_file_time(WORD fatdate, WORD fattime,
FILETIME *ft)
{
if (!fatdate && !fattime)
ft->dwLowDateTime = ft->dwHighDateTime = 0;
else
DosDateTimeToFileTime(fatdate, fattime, ft);
}
static int urlcache_decode_url(const char *url, WCHAR *decoded_url, int decoded_len)
{
URL_COMPONENTSA uc;
DWORD len, part_len;
WCHAR *host_name;
memset(&uc, 0, sizeof(uc));
uc.dwStructSize = sizeof(uc);
uc.dwHostNameLength = 1;
if(!InternetCrackUrlA(url, 0, 0, &uc))
uc.nScheme = INTERNET_SCHEME_UNKNOWN;
if(uc.nScheme!=INTERNET_SCHEME_HTTP && uc.nScheme!=INTERNET_SCHEME_HTTPS)
return MultiByteToWideChar(CP_UTF8, 0, url, -1, decoded_url, decoded_len);
if(!decoded_url)
decoded_len = 0;
len = MultiByteToWideChar(CP_UTF8, 0, url, uc.lpszHostName-url, decoded_url, decoded_len);
if(!len)
return 0;
if(decoded_url)
decoded_len -= len;
host_name = malloc(uc.dwHostNameLength * sizeof(WCHAR));
if(!host_name)
return 0;
if(!MultiByteToWideChar(CP_UTF8, 0, uc.lpszHostName, uc.dwHostNameLength,
host_name, uc.dwHostNameLength)) {
free(host_name);
return 0;
}
part_len = IdnToUnicode(0, host_name, uc.dwHostNameLength,
decoded_url ? decoded_url+len : NULL, decoded_len);
free(host_name);
if(!part_len) {
SetLastError(ERROR_INTERNET_INVALID_URL);
return 0;
}
len += part_len;
if(decoded_url)
decoded_len -= part_len;
part_len = MultiByteToWideChar(CP_UTF8, 0,
uc.lpszHostName+uc.dwHostNameLength,
-1, decoded_url ? decoded_url+len : NULL, decoded_len);
if(!part_len)
return 0;
len += part_len;
return len;
}
/***********************************************************************
* urlcache_copy_entry (Internal)
*
* Copies an entry from the cache index file to the Win32 structure
*
* RETURNS
* ERROR_SUCCESS if the buffer was big enough
* ERROR_INSUFFICIENT_BUFFER if the buffer was too small
*
*/
static DWORD urlcache_copy_entry(cache_container *container, const urlcache_header *header,
INTERNET_CACHE_ENTRY_INFOA *entry_info, DWORD *info_size, const entry_url *url_entry, BOOL unicode)
{
int url_len;
DWORD size = sizeof(*entry_info);
if(*info_size >= size) {
entry_info->lpHeaderInfo = NULL;
entry_info->lpszFileExtension = NULL;
entry_info->lpszLocalFileName = NULL;
entry_info->lpszSourceUrlName = NULL;
entry_info->CacheEntryType = url_entry->cache_entry_type;
entry_info->dwExemptDelta = url_entry->exempt_delta;
entry_info->dwHeaderInfoSize = url_entry->header_info_size;
entry_info->dwHitRate = url_entry->hit_rate;
entry_info->dwSizeHigh = url_entry->size.u.HighPart;
entry_info->dwSizeLow = url_entry->size.u.LowPart;
entry_info->dwStructSize = sizeof(*entry_info);
entry_info->dwUseCount = url_entry->use_count;
dos_date_time_to_file_time(url_entry->expire_date, url_entry->expire_time, &entry_info->ExpireTime);
entry_info->LastAccessTime = url_entry->access_time;
entry_info->LastModifiedTime = url_entry->modification_time;
dos_date_time_to_file_time(url_entry->sync_date, url_entry->sync_time, &entry_info->LastSyncTime);
}
if(unicode)
url_len = urlcache_decode_url((const char*)url_entry+url_entry->url_off, NULL, 0);
else
url_len = strlen((LPCSTR)url_entry+url_entry->url_off) + 1;
size += url_len * (unicode ? sizeof(WCHAR) : sizeof(CHAR));
if(*info_size >= size) {
DWORD url_size = url_len * (unicode ? sizeof(WCHAR) : sizeof(CHAR));
entry_info->lpszSourceUrlName = (LPSTR)entry_info+size-url_size;
if(unicode)
urlcache_decode_url((const char*)url_entry+url_entry->url_off, (WCHAR*)entry_info->lpszSourceUrlName, url_len);
else
memcpy(entry_info->lpszSourceUrlName, (LPCSTR)url_entry+url_entry->url_off, url_size);
}
if(size%4 && size<*info_size)
ZeroMemory((LPBYTE)entry_info+size, 4-size%4);
size = DWORD_ALIGN(size);
if(url_entry->local_name_off) {
LONG file_name_size;
LPSTR file_name;
file_name = (LPSTR)entry_info+size;
file_name_size = *info_size-size;
if((unicode && urlcache_create_file_pathW(container, header, (LPCSTR)url_entry+url_entry->local_name_off,
url_entry->cache_dir, (LPWSTR)file_name, &file_name_size, FALSE)) ||
(!unicode && urlcache_create_file_pathA(container, header, (LPCSTR)url_entry+url_entry->local_name_off,
url_entry->cache_dir, file_name, &file_name_size))) {
entry_info->lpszLocalFileName = file_name;
}
size += file_name_size;
if(size%4 && size<*info_size)
ZeroMemory((LPBYTE)entry_info+size, 4-size%4);
size = DWORD_ALIGN(size);
}
if(url_entry->header_info_off) {
DWORD header_len;
if(unicode)
header_len = MultiByteToWideChar(CP_UTF8, 0, (const char*)url_entry+url_entry->header_info_off,
url_entry->header_info_size, NULL, 0);
else
header_len = url_entry->header_info_size;
size += header_len * (unicode ? sizeof(WCHAR) : sizeof(CHAR));
if(*info_size >= size) {
DWORD header_size = header_len * (unicode ? sizeof(WCHAR) : sizeof(CHAR));
entry_info->lpHeaderInfo = (LPBYTE)entry_info+size-header_size;
if(unicode)
MultiByteToWideChar(CP_UTF8, 0, (const char*)url_entry+url_entry->header_info_off,
url_entry->header_info_size, (LPWSTR)entry_info->lpHeaderInfo, header_len);
else
memcpy(entry_info->lpHeaderInfo, (LPCSTR)url_entry+url_entry->header_info_off, header_len);
}
if(size%4 && size<*info_size)
ZeroMemory((LPBYTE)entry_info+size, 4-size%4);
size = DWORD_ALIGN(size);
}
if(url_entry->file_extension_off) {
int ext_len;
if(unicode)
ext_len = MultiByteToWideChar(CP_ACP, 0, (LPCSTR)url_entry+url_entry->file_extension_off, -1, NULL, 0);
else
ext_len = strlen((LPCSTR)url_entry+url_entry->file_extension_off) + 1;
size += ext_len * (unicode ? sizeof(WCHAR) : sizeof(CHAR));
if(*info_size >= size) {
DWORD ext_size = ext_len * (unicode ? sizeof(WCHAR) : sizeof(CHAR));
entry_info->lpszFileExtension = (LPSTR)entry_info+size-ext_size;
if(unicode)
MultiByteToWideChar(CP_ACP, 0, (LPCSTR)url_entry+url_entry->file_extension_off, -1, (LPWSTR)entry_info->lpszFileExtension, ext_len);
else
memcpy(entry_info->lpszFileExtension, (LPCSTR)url_entry+url_entry->file_extension_off, ext_len*sizeof(CHAR));
}
if(size%4 && size<*info_size)
ZeroMemory((LPBYTE)entry_info+size, 4-size%4);
size = DWORD_ALIGN(size);
}
if(size > *info_size) {
*info_size = size;
return ERROR_INSUFFICIENT_BUFFER;
}
*info_size = size;
return ERROR_SUCCESS;
}
/***********************************************************************
* urlcache_set_entry_info (Internal)
*
* Helper for SetUrlCacheEntryInfo{A,W}. Sets fields in URL entry
* according to the flags set by field_control.
*
* RETURNS
* ERROR_SUCCESS if the buffer was big enough
* ERROR_INSUFFICIENT_BUFFER if the buffer was too small
*
*/
static DWORD urlcache_set_entry_info(entry_url *url_entry, const INTERNET_CACHE_ENTRY_INFOA *entry_info, DWORD field_control)
{
if (field_control & CACHE_ENTRY_ACCTIME_FC)
url_entry->access_time = entry_info->LastAccessTime;
if (field_control & CACHE_ENTRY_ATTRIBUTE_FC)
url_entry->cache_entry_type = entry_info->CacheEntryType;
if (field_control & CACHE_ENTRY_EXEMPT_DELTA_FC)
url_entry->exempt_delta = entry_info->dwExemptDelta;
if (field_control & CACHE_ENTRY_EXPTIME_FC)
file_time_to_dos_date_time(&entry_info->ExpireTime, &url_entry->expire_date, &url_entry->expire_time);
if (field_control & CACHE_ENTRY_HEADERINFO_FC)
FIXME("CACHE_ENTRY_HEADERINFO_FC unimplemented\n");
if (field_control & CACHE_ENTRY_HITRATE_FC)
url_entry->hit_rate = entry_info->dwHitRate;
if (field_control & CACHE_ENTRY_MODTIME_FC)
url_entry->modification_time = entry_info->LastModifiedTime;
if (field_control & CACHE_ENTRY_SYNCTIME_FC)
file_time_to_dos_date_time(&entry_info->LastAccessTime, &url_entry->sync_date, &url_entry->sync_time);
return ERROR_SUCCESS;
}
/***********************************************************************
* urlcache_hash_key (Internal)
*
* Returns the hash key for a given string
*
* RETURNS
* hash key for the string
*
*/
static DWORD urlcache_hash_key(LPCSTR lpszKey)
{
/* NOTE: this uses the same lookup table as SHLWAPI.UrlHash{A,W}
* but the algorithm and result are not the same!
*/
static const unsigned char lookupTable[256] =
{
0x01, 0x0E, 0x6E, 0x19, 0x61, 0xAE, 0x84, 0x77,
0x8A, 0xAA, 0x7D, 0x76, 0x1B, 0xE9, 0x8C, 0x33,
0x57, 0xC5, 0xB1, 0x6B, 0xEA, 0xA9, 0x38, 0x44,
0x1E, 0x07, 0xAD, 0x49, 0xBC, 0x28, 0x24, 0x41,
0x31, 0xD5, 0x68, 0xBE, 0x39, 0xD3, 0x94, 0xDF,
0x30, 0x73, 0x0F, 0x02, 0x43, 0xBA, 0xD2, 0x1C,
0x0C, 0xB5, 0x67, 0x46, 0x16, 0x3A, 0x4B, 0x4E,
0xB7, 0xA7, 0xEE, 0x9D, 0x7C, 0x93, 0xAC, 0x90,
0xB0, 0xA1, 0x8D, 0x56, 0x3C, 0x42, 0x80, 0x53,
0x9C, 0xF1, 0x4F, 0x2E, 0xA8, 0xC6, 0x29, 0xFE,
0xB2, 0x55, 0xFD, 0xED, 0xFA, 0x9A, 0x85, 0x58,
0x23, 0xCE, 0x5F, 0x74, 0xFC, 0xC0, 0x36, 0xDD,
0x66, 0xDA, 0xFF, 0xF0, 0x52, 0x6A, 0x9E, 0xC9,
0x3D, 0x03, 0x59, 0x09, 0x2A, 0x9B, 0x9F, 0x5D,
0xA6, 0x50, 0x32, 0x22, 0xAF, 0xC3, 0x64, 0x63,
0x1A, 0x96, 0x10, 0x91, 0x04, 0x21, 0x08, 0xBD,
0x79, 0x40, 0x4D, 0x48, 0xD0, 0xF5, 0x82, 0x7A,
0x8F, 0x37, 0x69, 0x86, 0x1D, 0xA4, 0xB9, 0xC2,
0xC1, 0xEF, 0x65, 0xF2, 0x05, 0xAB, 0x7E, 0x0B,
0x4A, 0x3B, 0x89, 0xE4, 0x6C, 0xBF, 0xE8, 0x8B,
0x06, 0x18, 0x51, 0x14, 0x7F, 0x11, 0x5B, 0x5C,
0xFB, 0x97, 0xE1, 0xCF, 0x15, 0x62, 0x71, 0x70,
0x54, 0xE2, 0x12, 0xD6, 0xC7, 0xBB, 0x0D, 0x20,
0x5E, 0xDC, 0xE0, 0xD4, 0xF7, 0xCC, 0xC4, 0x2B,
0xF9, 0xEC, 0x2D, 0xF4, 0x6F, 0xB6, 0x99, 0x88,
0x81, 0x5A, 0xD9, 0xCA, 0x13, 0xA5, 0xE7, 0x47,
0xE6, 0x8E, 0x60, 0xE3, 0x3E, 0xB3, 0xF6, 0x72,
0xA2, 0x35, 0xA0, 0xD7, 0xCD, 0xB4, 0x2F, 0x6D,
0x2C, 0x26, 0x1F, 0x95, 0x87, 0x00, 0xD8, 0x34,
0x3F, 0x17, 0x25, 0x45, 0x27, 0x75, 0x92, 0xB8,
0xA3, 0xC8, 0xDE, 0xEB, 0xF8, 0xF3, 0xDB, 0x0A,
0x98, 0x83, 0x7B, 0xE5, 0xCB, 0x4C, 0x78, 0xD1
};
BYTE key[4];
DWORD i;
for (i = 0; i < ARRAY_SIZE(key); i++)
key[i] = lookupTable[(*lpszKey + i) & 0xFF];
for (lpszKey++; *lpszKey; lpszKey++)
{
for (i = 0; i < ARRAY_SIZE(key); i++)
key[i] = lookupTable[*lpszKey ^ key[i]];
}
return *(DWORD *)key;
}
static inline entry_hash_table* urlcache_get_hash_table(const urlcache_header *pHeader, DWORD dwOffset)
{
if(!dwOffset)
return NULL;
return (entry_hash_table*)((LPBYTE)pHeader + dwOffset);
}
static BOOL urlcache_find_hash_entry(const urlcache_header *pHeader, LPCSTR lpszUrl, struct hash_entry **ppHashEntry)
{
/* structure of hash table:
* 448 entries divided into 64 blocks
* each block therefore contains a chain of 7 key/offset pairs
* how position in table is calculated:
* 1. the url is hashed in helper function
* 2. the key % HASHTABLE_NUM_ENTRIES is the bucket number
* 3. bucket number * HASHTABLE_BLOCKSIZE is offset of the bucket
*
* note:
* there can be multiple hash tables in the file and the offset to
* the next one is stored in the header of the hash table
*/
DWORD key = urlcache_hash_key(lpszUrl);
DWORD offset = (key & (HASHTABLE_NUM_ENTRIES-1)) * HASHTABLE_BLOCKSIZE;
entry_hash_table* pHashEntry;
DWORD id = 0;
key >>= HASHTABLE_FLAG_BITS;
for (pHashEntry = urlcache_get_hash_table(pHeader, pHeader->hash_table_off);
pHashEntry; pHashEntry = urlcache_get_hash_table(pHeader, pHashEntry->next))
{
int i;
if (pHashEntry->id != id++)
{
ERR("Error: not right hash table number (%ld) expected %ld\n", pHashEntry->id, id);
continue;
}
/* make sure that it is in fact a hash entry */
if (pHashEntry->header.signature != HASH_SIGNATURE)
{
ERR("Error: not right signature (\"%.4s\") - expected \"HASH\"\n", (LPCSTR)&pHashEntry->header.signature);
continue;
}
for (i = 0; i < HASHTABLE_BLOCKSIZE; i++)
{
struct hash_entry *pHashElement = &pHashEntry->hash_table[offset + i];
if (key == pHashElement->key>>HASHTABLE_FLAG_BITS)
{
/* FIXME: we should make sure that this is the right element
* before returning and claiming that it is. We can do this
* by doing a simple compare between the URL we were given
* and the URL stored in the entry. However, this assumes
* we know the format of all the entries stored in the
* hash table */
*ppHashEntry = pHashElement;
return TRUE;
}
}
}
return FALSE;
}
/***********************************************************************
* urlcache_hash_entry_set_flags (Internal)
*
* Sets special bits in hash key
*
* RETURNS
* nothing
*
*/
static void urlcache_hash_entry_set_flags(struct hash_entry *pHashEntry, DWORD dwFlag)
{
pHashEntry->key = (pHashEntry->key >> HASHTABLE_FLAG_BITS << HASHTABLE_FLAG_BITS) | dwFlag;
}
/***********************************************************************
* urlcache_hash_entry_delete (Internal)
*
* Searches all the hash tables in the index for the given URL and
* then if found deletes the entry.
*
* RETURNS
* TRUE if the entry was found
* FALSE if the entry could not be found
*
*/
static BOOL urlcache_hash_entry_delete(struct hash_entry *pHashEntry)
{
pHashEntry->key = HASHTABLE_DEL;
return TRUE;
}
/***********************************************************************
* urlcache_hash_entry_create (Internal)
*
* Searches all the hash tables for a free slot based on the offset
* generated from the hash key. If a free slot is found, the offset and
* key are entered into the hash table.
*
* RETURNS
* ERROR_SUCCESS if the entry was added
* Any other Win32 error code if the entry could not be added
*
*/
static DWORD urlcache_hash_entry_create(urlcache_header *pHeader, LPCSTR lpszUrl, DWORD dwOffsetEntry, DWORD dwFieldType)
{
/* see urlcache_find_hash_entry for structure of hash tables */
DWORD key = urlcache_hash_key(lpszUrl);
DWORD offset = (key & (HASHTABLE_NUM_ENTRIES-1)) * HASHTABLE_BLOCKSIZE;
entry_hash_table* pHashEntry, *pHashPrev = NULL;
DWORD id = 0;
DWORD error;
key = ((key >> HASHTABLE_FLAG_BITS) << HASHTABLE_FLAG_BITS) + dwFieldType;
for (pHashEntry = urlcache_get_hash_table(pHeader, pHeader->hash_table_off);
pHashEntry; pHashEntry = urlcache_get_hash_table(pHeader, pHashEntry->next))
{
int i;
pHashPrev = pHashEntry;
if (pHashEntry->id != id++)
{
ERR("not right hash table number (%ld) expected %ld\n", pHashEntry->id, id);
break;
}
/* make sure that it is in fact a hash entry */
if (pHashEntry->header.signature != HASH_SIGNATURE)
{
ERR("not right signature (\"%.4s\") - expected \"HASH\"\n", (LPCSTR)&pHashEntry->header.signature);
break;
}
for (i = 0; i < HASHTABLE_BLOCKSIZE; i++)
{
struct hash_entry *pHashElement = &pHashEntry->hash_table[offset + i];
if (pHashElement->key==HASHTABLE_FREE || pHashElement->key==HASHTABLE_DEL) /* if the slot is free */
{
pHashElement->key = key;
pHashElement->offset = dwOffsetEntry;
return ERROR_SUCCESS;
}
}
}
error = urlcache_create_hash_table(pHeader, pHashPrev, &pHashEntry);
if (error != ERROR_SUCCESS)
return error;
pHashEntry->hash_table[offset].key = key;
pHashEntry->hash_table[offset].offset = dwOffsetEntry;
return ERROR_SUCCESS;
}
/***********************************************************************
* urlcache_enum_hash_tables (Internal)
*
* Enumerates the hash tables in a container.
*
* RETURNS
* TRUE if an entry was found
* FALSE if there are no more tables to enumerate.
*
*/
static BOOL urlcache_enum_hash_tables(const urlcache_header *pHeader, DWORD *id, entry_hash_table **ppHashEntry)
{
for (*ppHashEntry = urlcache_get_hash_table(pHeader, pHeader->hash_table_off);
*ppHashEntry; *ppHashEntry = urlcache_get_hash_table(pHeader, (*ppHashEntry)->next))
{
TRACE("looking at hash table number %ld\n", (*ppHashEntry)->id);
if ((*ppHashEntry)->id != *id)
continue;
/* make sure that it is in fact a hash entry */
if ((*ppHashEntry)->header.signature != HASH_SIGNATURE)
{
ERR("Error: not right signature (\"%.4s\") - expected \"HASH\"\n", (LPCSTR)&(*ppHashEntry)->header.signature);
(*id)++;
continue;
}
TRACE("hash table number %ld found\n", *id);
return TRUE;
}
return FALSE;
}
/***********************************************************************
* urlcache_enum_hash_table_entries (Internal)
*
* Enumerates entries in a hash table and returns the next non-free entry.
*
* RETURNS
* TRUE if an entry was found
* FALSE if the hash table is empty or there are no more entries to
* enumerate.
*
*/
static BOOL urlcache_enum_hash_table_entries(const urlcache_header *pHeader, const entry_hash_table *pHashEntry,
DWORD * index, const struct hash_entry **ppHashEntry)
{
for (; *index < HASHTABLE_SIZE ; (*index)++)
{
if (pHashEntry->hash_table[*index].key==HASHTABLE_FREE || pHashEntry->hash_table[*index].key==HASHTABLE_DEL)
continue;
*ppHashEntry = &pHashEntry->hash_table[*index];
TRACE("entry found %ld\n", *index);
return TRUE;
}
TRACE("no more entries (%ld)\n", *index);
return FALSE;
}
/***********************************************************************
* cache_container_delete_dir (Internal)
*
* Erase a directory containing an URL cache.
*
* RETURNS
* TRUE success, FALSE failure/aborted.
*
*/
static BOOL cache_container_delete_dir(LPCWSTR lpszPath)
{
DWORD path_len;
WCHAR path[MAX_PATH + 1];
SHFILEOPSTRUCTW shfos;
int ret;
path_len = lstrlenW(lpszPath);
if (path_len >= MAX_PATH)
return FALSE;
lstrcpyW(path, lpszPath);
path[path_len + 1] = 0; /* double-NUL-terminate path */
shfos.hwnd = NULL;
shfos.wFunc = FO_DELETE;
shfos.pFrom = path;
shfos.pTo = NULL;
shfos.fFlags = FOF_NOCONFIRMATION;
shfos.fAnyOperationsAborted = FALSE;
ret = SHFileOperationW(&shfos);
if (ret)
ERR("SHFileOperationW on %s returned %i\n", debugstr_w(path), ret);
return !(ret || shfos.fAnyOperationsAborted);
}
/***********************************************************************
* urlcache_hash_entry_is_locked (Internal)
*
* Checks if entry is locked. Unlocks it if possible.
*/
static BOOL urlcache_hash_entry_is_locked(struct hash_entry *hash_entry, entry_url *url_entry)
{
FILETIME cur_time;
ULARGE_INTEGER acc_time, time;
if ((hash_entry->key & ((1<<HASHTABLE_FLAG_BITS)-1)) != HASHTABLE_LOCK)
return FALSE;
GetSystemTimeAsFileTime(&cur_time);
time.u.LowPart = cur_time.dwLowDateTime;
time.u.HighPart = cur_time.dwHighDateTime;
acc_time.u.LowPart = url_entry->access_time.dwLowDateTime;
acc_time.u.HighPart = url_entry->access_time.dwHighDateTime;
time.QuadPart -= acc_time.QuadPart;
/* check if entry was locked for at least a day */
if(time.QuadPart > (ULONGLONG)24*60*60*FILETIME_SECOND) {
urlcache_hash_entry_set_flags(hash_entry, HASHTABLE_URL);
url_entry->use_count = 0;
return FALSE;
}
return TRUE;
}
static BOOL urlcache_get_entry_info(const char *url, void *entry_info,
DWORD *size, DWORD flags, BOOL unicode)
{
urlcache_header *header;
struct hash_entry *hash_entry;
const entry_url *url_entry;
cache_container *container;
DWORD error;
TRACE("(%s, %p, %p, %lx, %x)\n", debugstr_a(url), entry_info, size, flags, unicode);
if(flags & ~GET_INSTALLED_ENTRY)
FIXME("ignoring unsupported flags: %lx\n", flags);
error = cache_containers_find(url, &container);
if(error != ERROR_SUCCESS) {
SetLastError(error);
return FALSE;
}
error = cache_container_open_index(container, MIN_BLOCK_NO);
if(error != ERROR_SUCCESS) {
SetLastError(error);
return FALSE;
}
if(!(header = cache_container_lock_index(container)))
return FALSE;
if(!urlcache_find_hash_entry(header, url, &hash_entry)) {
cache_container_unlock_index(container, header);
WARN("entry %s not found!\n", debugstr_a(url));
SetLastError(ERROR_FILE_NOT_FOUND);
return FALSE;
}
url_entry = (const entry_url*)((LPBYTE)header + hash_entry->offset);
if(url_entry->header.signature != URL_SIGNATURE) {
FIXME("Trying to retrieve entry of unknown format %s\n",
debugstr_an((LPCSTR)&url_entry->header.signature, sizeof(DWORD)));
cache_container_unlock_index(container, header);
SetLastError(ERROR_FILE_NOT_FOUND);
return FALSE;
}
TRACE("Found URL: %s\n", debugstr_a((LPCSTR)url_entry + url_entry->url_off));
TRACE("Header info: %s\n", debugstr_an((LPCSTR)url_entry +
url_entry->header_info_off, url_entry->header_info_size));
if((flags & GET_INSTALLED_ENTRY) && !(url_entry->cache_entry_type & INSTALLED_CACHE_ENTRY)) {
cache_container_unlock_index(container, header);
SetLastError(ERROR_FILE_NOT_FOUND);
return FALSE;
}
if(size) {
if(!entry_info)
*size = 0;
error = urlcache_copy_entry(container, header, entry_info, size, url_entry, unicode);
if(error != ERROR_SUCCESS) {
cache_container_unlock_index(container, header);
SetLastError(error);
return FALSE;
}
if(url_entry->local_name_off)
TRACE("Local File Name: %s\n", debugstr_a((LPCSTR)url_entry + url_entry->local_name_off));
}
cache_container_unlock_index(container, header);
return TRUE;
}
/***********************************************************************
* GetUrlCacheEntryInfoExA (WININET.@)
*
*/
BOOL WINAPI GetUrlCacheEntryInfoExA(LPCSTR lpszUrl,
LPINTERNET_CACHE_ENTRY_INFOA lpCacheEntryInfo,
LPDWORD lpdwCacheEntryInfoBufSize, LPSTR lpszReserved,
LPDWORD lpdwReserved, LPVOID lpReserved, DWORD dwFlags)
{
if(lpszReserved!=NULL || lpdwReserved!=NULL || lpReserved!=NULL) {
ERR("Reserved value was not 0\n");
SetLastError(ERROR_INVALID_PARAMETER);
return FALSE;
}
return urlcache_get_entry_info(lpszUrl, lpCacheEntryInfo,
lpdwCacheEntryInfoBufSize, dwFlags, FALSE);
}
/***********************************************************************
* GetUrlCacheEntryInfoA (WININET.@)
*
*/
BOOL WINAPI GetUrlCacheEntryInfoA(LPCSTR lpszUrlName,
LPINTERNET_CACHE_ENTRY_INFOA lpCacheEntryInfo,
LPDWORD lpdwCacheEntryInfoBufferSize)
{
return GetUrlCacheEntryInfoExA(lpszUrlName, lpCacheEntryInfo,
lpdwCacheEntryInfoBufferSize, NULL, NULL, NULL, 0);
}
static int urlcache_encode_url(const WCHAR *url, char *encoded_url, int encoded_len)
{
URL_COMPONENTSW uc;
DWORD len, part_len;
WCHAR *punycode;
TRACE("%s\n", debugstr_w(url));
memset(&uc, 0, sizeof(uc));
uc.dwStructSize = sizeof(uc);
uc.dwHostNameLength = 1;
if(!InternetCrackUrlW(url, 0, 0, &uc))
uc.nScheme = INTERNET_SCHEME_UNKNOWN;
if(uc.nScheme!=INTERNET_SCHEME_HTTP && uc.nScheme!=INTERNET_SCHEME_HTTPS)
return WideCharToMultiByte(CP_UTF8, 0, url, -1, encoded_url, encoded_len, NULL, NULL);
len = WideCharToMultiByte(CP_UTF8, 0, url, uc.lpszHostName-url,
encoded_url, encoded_len, NULL, NULL);
if(!len)
return 0;
if(encoded_url)
encoded_len -= len;
part_len = IdnToAscii(0, uc.lpszHostName, uc.dwHostNameLength, NULL, 0);
if(!part_len) {
SetLastError(ERROR_INTERNET_INVALID_URL);
return 0;
}
punycode = malloc(part_len * sizeof(WCHAR));
if(!punycode)
return 0;
part_len = IdnToAscii(0, uc.lpszHostName, uc.dwHostNameLength, punycode, part_len);
if(!part_len) {
free(punycode);
return 0;
}
part_len = WideCharToMultiByte(CP_UTF8, 0, punycode, part_len,
encoded_url ? encoded_url+len : NULL, encoded_len, NULL, NULL);
free(punycode);
if(!part_len)
return 0;
if(encoded_url)
encoded_len -= part_len;
len += part_len;
part_len = WideCharToMultiByte(CP_UTF8, 0, uc.lpszHostName+uc.dwHostNameLength,
-1, encoded_url ? encoded_url+len : NULL, encoded_len, NULL, NULL);
if(!part_len)
return 0;
len += part_len;
TRACE("got (%ld)%s\n", len, debugstr_a(encoded_url));
return len;
}
static BOOL urlcache_encode_url_alloc(const WCHAR *url, char **encoded_url)
{
DWORD encoded_len;
char *ret;
encoded_len = urlcache_encode_url(url, NULL, 0);
if(!encoded_len)
return FALSE;
ret = malloc(encoded_len);
if(!ret)
return FALSE;
encoded_len = urlcache_encode_url(url, ret, encoded_len);
if(!encoded_len) {
free(ret);
return FALSE;
}
*encoded_url = ret;
return TRUE;
}
/***********************************************************************
* GetUrlCacheEntryInfoExW (WININET.@)
*
*/
BOOL WINAPI GetUrlCacheEntryInfoExW(LPCWSTR lpszUrl,
LPINTERNET_CACHE_ENTRY_INFOW lpCacheEntryInfo,
LPDWORD lpdwCacheEntryInfoBufSize, LPWSTR lpszReserved,
LPDWORD lpdwReserved, LPVOID lpReserved, DWORD dwFlags)
{
char *url;
BOOL ret;
if(lpszReserved!=NULL || lpdwReserved!=NULL || lpReserved!=NULL) {
ERR("Reserved value was not 0\n");
SetLastError(ERROR_INVALID_PARAMETER);
return FALSE;
}
/* Ignore GET_INSTALLED_ENTRY flag in unicode version of function */
dwFlags &= ~GET_INSTALLED_ENTRY;
if(!urlcache_encode_url_alloc(lpszUrl, &url))
return FALSE;
ret = urlcache_get_entry_info(url, lpCacheEntryInfo,
lpdwCacheEntryInfoBufSize, dwFlags, TRUE);
free(url);
return ret;
}
/***********************************************************************
* GetUrlCacheEntryInfoW (WININET.@)
*
*/
BOOL WINAPI GetUrlCacheEntryInfoW(LPCWSTR lpszUrl,
LPINTERNET_CACHE_ENTRY_INFOW lpCacheEntryInfo,
LPDWORD lpdwCacheEntryInfoBufferSize)
{
return GetUrlCacheEntryInfoExW(lpszUrl, lpCacheEntryInfo,
lpdwCacheEntryInfoBufferSize, NULL, NULL, NULL, 0);
}
/***********************************************************************
* SetUrlCacheEntryInfoA (WININET.@)
*/
BOOL WINAPI SetUrlCacheEntryInfoA(LPCSTR lpszUrlName,
LPINTERNET_CACHE_ENTRY_INFOA lpCacheEntryInfo,
DWORD dwFieldControl)
{
urlcache_header *pHeader;
struct hash_entry *pHashEntry;
entry_header *pEntry;
cache_container *pContainer;
DWORD error;
TRACE("(%s, %p, 0x%08lx)\n", debugstr_a(lpszUrlName), lpCacheEntryInfo, dwFieldControl);
error = cache_containers_find(lpszUrlName, &pContainer);
if (error != ERROR_SUCCESS)
{
SetLastError(error);
return FALSE;
}
error = cache_container_open_index(pContainer, MIN_BLOCK_NO);
if (error != ERROR_SUCCESS)
{
SetLastError(error);
return FALSE;
}
if (!(pHeader = cache_container_lock_index(pContainer)))
return FALSE;
if (!urlcache_find_hash_entry(pHeader, lpszUrlName, &pHashEntry))
{
cache_container_unlock_index(pContainer, pHeader);
WARN("entry %s not found!\n", debugstr_a(lpszUrlName));
SetLastError(ERROR_FILE_NOT_FOUND);
return FALSE;
}
pEntry = (entry_header*)((LPBYTE)pHeader + pHashEntry->offset);
if (pEntry->signature != URL_SIGNATURE)
{
FIXME("Trying to retrieve entry of unknown format %s\n", debugstr_an((LPSTR)&pEntry->signature, sizeof(DWORD)));
cache_container_unlock_index(pContainer, pHeader);
SetLastError(ERROR_FILE_NOT_FOUND);
return FALSE;
}
urlcache_set_entry_info((entry_url*)pEntry, lpCacheEntryInfo, dwFieldControl);
cache_container_unlock_index(pContainer, pHeader);
return TRUE;
}
/***********************************************************************
* SetUrlCacheEntryInfoW (WININET.@)
*/
BOOL WINAPI SetUrlCacheEntryInfoW(LPCWSTR lpszUrl,
LPINTERNET_CACHE_ENTRY_INFOW lpCacheEntryInfo,
DWORD dwFieldControl)
{
char *url;
BOOL ret;
if(!urlcache_encode_url_alloc(lpszUrl, &url))
return FALSE;
ret = SetUrlCacheEntryInfoA(url, (INTERNET_CACHE_ENTRY_INFOA*)lpCacheEntryInfo, dwFieldControl);
free(url);
return ret;
}
static BOOL urlcache_entry_get_file(const char *url, void *entry_info, DWORD *size, BOOL unicode)
{
urlcache_header *header;
struct hash_entry *hash_entry;
entry_url *url_entry;
cache_container *container;
DWORD error;
TRACE("(%s, %p, %p, %x)\n", debugstr_a(url), entry_info, size, unicode);
if(!url || !size || (!entry_info && *size)) {
SetLastError(ERROR_INVALID_PARAMETER);
return FALSE;
}
error = cache_containers_find(url, &container);
if(error != ERROR_SUCCESS) {
SetLastError(error);
return FALSE;
}
error = cache_container_open_index(container, MIN_BLOCK_NO);
if (error != ERROR_SUCCESS) {
SetLastError(error);
return FALSE;
}
if (!(header = cache_container_lock_index(container)))
return FALSE;
if (!urlcache_find_hash_entry(header, url, &hash_entry)) {
cache_container_unlock_index(container, header);
TRACE("entry %s not found!\n", debugstr_a(url));
SetLastError(ERROR_FILE_NOT_FOUND);
return FALSE;
}
url_entry = (entry_url*)((LPBYTE)header + hash_entry->offset);
if(url_entry->header.signature != URL_SIGNATURE) {
FIXME("Trying to retrieve entry of unknown format %s\n",
debugstr_an((LPSTR)&url_entry->header.signature, sizeof(DWORD)));
cache_container_unlock_index(container, header);
SetLastError(ERROR_FILE_NOT_FOUND);
return FALSE;
}
if(!url_entry->local_name_off) {
cache_container_unlock_index(container, header);
SetLastError(ERROR_INVALID_DATA);
return FALSE;
}
TRACE("Found URL: %s\n", debugstr_a((LPCSTR)url_entry + url_entry->url_off));
TRACE("Header info: %s\n", debugstr_an((LPCSTR)url_entry + url_entry->header_info_off,
url_entry->header_info_size));
error = urlcache_copy_entry(container, header, entry_info,
size, url_entry, unicode);
if(error != ERROR_SUCCESS) {
cache_container_unlock_index(container, header);
SetLastError(error);
return FALSE;
}
TRACE("Local File Name: %s\n", debugstr_a((LPCSTR)url_entry + url_entry->local_name_off));
url_entry->hit_rate++;
url_entry->use_count++;
urlcache_hash_entry_set_flags(hash_entry, HASHTABLE_LOCK);
GetSystemTimeAsFileTime(&url_entry->access_time);
cache_container_unlock_index(container, header);
return TRUE;
}
/***********************************************************************
* RetrieveUrlCacheEntryFileA (WININET.@)
*
*/
BOOL WINAPI RetrieveUrlCacheEntryFileA(LPCSTR lpszUrlName,
LPINTERNET_CACHE_ENTRY_INFOA lpCacheEntryInfo,
LPDWORD lpdwCacheEntryInfoBufferSize, DWORD dwReserved)
{
return urlcache_entry_get_file(lpszUrlName, lpCacheEntryInfo,
lpdwCacheEntryInfoBufferSize, FALSE);
}
/***********************************************************************
* RetrieveUrlCacheEntryFileW (WININET.@)
*
*/
BOOL WINAPI RetrieveUrlCacheEntryFileW(LPCWSTR lpszUrlName,
LPINTERNET_CACHE_ENTRY_INFOW lpCacheEntryInfo,
LPDWORD lpdwCacheEntryInfoBufferSize, DWORD dwReserved)
{
char *url;
BOOL ret;
if(!urlcache_encode_url_alloc(lpszUrlName, &url))
return FALSE;
ret = urlcache_entry_get_file(url, lpCacheEntryInfo,
lpdwCacheEntryInfoBufferSize, TRUE);
free(url);
return ret;
}
static BOOL urlcache_entry_delete(const cache_container *pContainer,
urlcache_header *pHeader, struct hash_entry *pHashEntry)
{
entry_header *pEntry;
entry_url * pUrlEntry;
pEntry = (entry_header*)((LPBYTE)pHeader + pHashEntry->offset);
if (pEntry->signature != URL_SIGNATURE)
{
FIXME("Trying to delete entry of unknown format %s\n",
debugstr_an((LPCSTR)&pEntry->signature, sizeof(DWORD)));
SetLastError(ERROR_FILE_NOT_FOUND);
return FALSE;
}
pUrlEntry = (entry_url *)pEntry;
if(urlcache_hash_entry_is_locked(pHashEntry, pUrlEntry))
{
TRACE("Trying to delete locked entry\n");
pUrlEntry->cache_entry_type |= PENDING_DELETE_CACHE_ENTRY;
SetLastError(ERROR_SHARING_VIOLATION);
return FALSE;
}
if(!urlcache_delete_file(pContainer, pHeader, pUrlEntry))
{
urlcache_entry_free(pHeader, pEntry);
}
else
{
/* Add entry to leaked files list */
pUrlEntry->header.signature = LEAK_SIGNATURE;
pUrlEntry->exempt_delta = pHeader->options[CACHE_HEADER_DATA_ROOT_LEAK_OFFSET];
pHeader->options[CACHE_HEADER_DATA_ROOT_LEAK_OFFSET] = pHashEntry->offset;
}
urlcache_hash_entry_delete(pHashEntry);
return TRUE;
}
static HANDLE free_cache_running;
static HANDLE dll_unload_event;
static DWORD WINAPI handle_full_cache_worker(void *param)
{
FreeUrlCacheSpaceW(NULL, 20, 0);
ReleaseSemaphore(free_cache_running, 1, NULL);
return 0;
}
static void handle_full_cache(void)
{
if(WaitForSingleObject(free_cache_running, 0) == WAIT_OBJECT_0) {
if(!QueueUserWorkItem(handle_full_cache_worker, NULL, 0))
ReleaseSemaphore(free_cache_running, 1, NULL);
}
}
/* Enumerates entries in cache, allows cache unlocking between calls. */
static BOOL urlcache_next_entry(urlcache_header *header, DWORD *hash_table_off, DWORD *hash_table_entry,
struct hash_entry **hash_entry, entry_header **entry)
{
entry_hash_table *hashtable_entry;
*hash_entry = NULL;
*entry = NULL;
if(!*hash_table_off) {
*hash_table_off = header->hash_table_off;
*hash_table_entry = 0;
hashtable_entry = urlcache_get_hash_table(header, *hash_table_off);
}else {
if(*hash_table_off >= header->size) {
*hash_table_off = 0;
return FALSE;
}
hashtable_entry = urlcache_get_hash_table(header, *hash_table_off);
}
if(hashtable_entry->header.signature != HASH_SIGNATURE) {
*hash_table_off = 0;
return FALSE;
}
while(1) {
if(*hash_table_entry >= HASHTABLE_SIZE) {
*hash_table_off = hashtable_entry->next;
if(!*hash_table_off) {
*hash_table_off = 0;
return FALSE;
}
hashtable_entry = urlcache_get_hash_table(header, *hash_table_off);
*hash_table_entry = 0;
}
if(hashtable_entry->hash_table[*hash_table_entry].key != HASHTABLE_DEL &&
hashtable_entry->hash_table[*hash_table_entry].key != HASHTABLE_FREE) {
*hash_entry = &hashtable_entry->hash_table[*hash_table_entry];
*entry = (entry_header*)((LPBYTE)header + hashtable_entry->hash_table[*hash_table_entry].offset);
(*hash_table_entry)++;
return TRUE;
}
(*hash_table_entry)++;
}
*hash_table_off = 0;
return FALSE;
}
/* Rates an urlcache entry to determine if it can be deleted.
*
* Score 0 means that entry can safely be removed, the bigger rating
* the smaller chance of entry being removed.
* DWORD_MAX means that entry can't be deleted at all.
*
* Rating system is currently not fully compatible with native implementation.
*/
static DWORD urlcache_rate_entry(entry_url *url_entry, FILETIME *cur_time)
{
ULARGE_INTEGER time, access_time;
DWORD rating;
access_time.u.LowPart = url_entry->access_time.dwLowDateTime;
access_time.u.HighPart = url_entry->access_time.dwHighDateTime;
time.u.LowPart = cur_time->dwLowDateTime;
time.u.HighPart = cur_time->dwHighDateTime;
/* Don't touch entries that were added less than 10 minutes ago */
if(time.QuadPart < access_time.QuadPart + (ULONGLONG)10*60*FILETIME_SECOND)
return -1;
if(url_entry->cache_entry_type & STICKY_CACHE_ENTRY)
if(time.QuadPart < access_time.QuadPart + (ULONGLONG)url_entry->exempt_delta*FILETIME_SECOND)
return -1;
time.QuadPart = (time.QuadPart-access_time.QuadPart)/FILETIME_SECOND;
rating = 400*60*60*24/(60*60*24+time.QuadPart);
if(url_entry->hit_rate > 100)
rating += 100;
else
rating += url_entry->hit_rate;
return rating;
}
static int __cdecl dword_cmp(const void *p1, const void *p2)
{
return *(const DWORD*)p1 - *(const DWORD*)p2;
}
/***********************************************************************
* FreeUrlCacheSpaceW (WININET.@)
*
* Frees up some cache.
*
* PARAMETERS
* cache_path [I] Which volume to free up from, or NULL if you don't care.
* size [I] Percentage of the cache that should be free.
* filter [I] Which entries can't be deleted (CacheEntryType)
*
* RETURNS
* TRUE success. FALSE failure.
*
* IMPLEMENTATION
* This implementation just retrieves the path of the cache directory, and
* deletes its contents from the filesystem. The correct approach would
* probably be to implement and use {FindFirst,FindNext,Delete}UrlCacheGroup().
*/
BOOL WINAPI FreeUrlCacheSpaceW(LPCWSTR cache_path, DWORD size, DWORD filter)
{
cache_container *container;
DWORD path_len, err;
TRACE("(%s, %lx, %lx)\n", debugstr_w(cache_path), size, filter);
if(size<1 || size>100) {
SetLastError(ERROR_INVALID_PARAMETER);
return FALSE;
}
if(cache_path) {
path_len = lstrlenW(cache_path);
if(cache_path[path_len-1] == '\\')
path_len--;
}else {
path_len = 0;
}
if(size==100 && !filter) {
LIST_FOR_EACH_ENTRY(container, &UrlContainers, cache_container, entry)
{
/* When cache_path==NULL only clean Temporary Internet Files */
if((!path_len && container->cache_prefix[0]==0) ||
(path_len && !wcsnicmp(container->path, cache_path, path_len) &&
(container->path[path_len]=='\0' || container->path[path_len]=='\\')))
{
BOOL ret_del;
WaitForSingleObject(container->mutex, INFINITE);
/* unlock, delete, recreate and lock cache */
cache_container_close_index(container);
ret_del = cache_container_delete_dir(container->path);
err = cache_container_open_index(container, MIN_BLOCK_NO);
ReleaseMutex(container->mutex);
if(!ret_del || (err != ERROR_SUCCESS))
return FALSE;
}
}
return TRUE;
}
LIST_FOR_EACH_ENTRY(container, &UrlContainers, cache_container, entry)
{
urlcache_header *header;
struct hash_entry *hash_entry;
entry_header *entry;
entry_url *url_entry;
ULONGLONG desired_size, cur_size;
DWORD delete_factor, hash_table_off, hash_table_entry;
DWORD rate[100], rate_no;
FILETIME cur_time;
if((path_len || container->cache_prefix[0]!=0) &&
(!path_len || wcsnicmp(container->path, cache_path, path_len) ||
(container->path[path_len]!='\0' && container->path[path_len]!='\\')))
continue;
err = cache_container_open_index(container, MIN_BLOCK_NO);
if(err != ERROR_SUCCESS)
continue;
header = cache_container_lock_index(container);
if(!header)
continue;
urlcache_clean_leaked_entries(container, header);
desired_size = header->cache_limit.QuadPart*(100-size)/100;
cur_size = header->cache_usage.QuadPart+header->exempt_usage.QuadPart;
if(cur_size <= desired_size)
delete_factor = 0;
else
delete_factor = (cur_size-desired_size)*100/cur_size;
if(!delete_factor) {
cache_container_unlock_index(container, header);
continue;
}
hash_table_off = 0;
hash_table_entry = 0;
rate_no = 0;
GetSystemTimeAsFileTime(&cur_time);
while(rate_no < ARRAY_SIZE(rate) &&
urlcache_next_entry(header, &hash_table_off, &hash_table_entry, &hash_entry, &entry)) {
if(entry->signature != URL_SIGNATURE) {
WARN("only url entries are currently supported\n");
continue;
}
url_entry = (entry_url*)entry;
if(url_entry->cache_entry_type & filter)
continue;
rate[rate_no] = urlcache_rate_entry(url_entry, &cur_time);
if(rate[rate_no] != -1)
rate_no++;
}
if(!rate_no) {
TRACE("nothing to delete\n");
cache_container_unlock_index(container, header);
continue;
}
qsort(rate, rate_no, sizeof(DWORD), dword_cmp);
delete_factor = delete_factor*rate_no/100;
delete_factor = rate[delete_factor];
TRACE("deleting files with rating %ld or less\n", delete_factor);
hash_table_off = 0;
while(urlcache_next_entry(header, &hash_table_off, &hash_table_entry, &hash_entry, &entry)) {
if(entry->signature != URL_SIGNATURE)
continue;
url_entry = (entry_url*)entry;
if(url_entry->cache_entry_type & filter)
continue;
if(urlcache_rate_entry(url_entry, &cur_time) <= delete_factor) {
TRACE("deleting file: %s\n", debugstr_a((char*)url_entry+url_entry->local_name_off));
urlcache_entry_delete(container, header, hash_entry);
if(header->cache_usage.QuadPart+header->exempt_usage.QuadPart <= desired_size)
break;
/* Allow other threads to use cache while cleaning */
cache_container_unlock_index(container, header);
if(WaitForSingleObject(dll_unload_event, 0) == WAIT_OBJECT_0) {
TRACE("got dll_unload_event - finishing\n");
return TRUE;
}
Sleep(0);
header = cache_container_lock_index(container);
}
}
TRACE("cache size after cleaning 0x%s/0x%s\n",
wine_dbgstr_longlong(header->cache_usage.QuadPart+header->exempt_usage.QuadPart),
wine_dbgstr_longlong(header->cache_limit.QuadPart));
cache_container_unlock_index(container, header);
}
return TRUE;
}
/***********************************************************************
* FreeUrlCacheSpaceA (WININET.@)
*
* See FreeUrlCacheSpaceW.
*/
BOOL WINAPI FreeUrlCacheSpaceA(LPCSTR lpszCachePath, DWORD dwSize, DWORD dwFilter)
{
BOOL ret = FALSE;
WCHAR *path = strdupAtoW(lpszCachePath);
if (lpszCachePath == NULL || path != NULL)
ret = FreeUrlCacheSpaceW(path, dwSize, dwFilter);
free(path);
return ret;
}
/***********************************************************************
* UnlockUrlCacheEntryFileA (WININET.@)
*
*/
BOOL WINAPI UnlockUrlCacheEntryFileA(LPCSTR lpszUrlName, DWORD dwReserved)
{
urlcache_header *pHeader;
struct hash_entry *pHashEntry;
entry_header *pEntry;
entry_url * pUrlEntry;
cache_container *pContainer;
DWORD error;
TRACE("(%s, 0x%08lx)\n", debugstr_a(lpszUrlName), dwReserved);
if (dwReserved)
{
ERR("dwReserved != 0\n");
SetLastError(ERROR_INVALID_PARAMETER);
return FALSE;
}
error = cache_containers_find(lpszUrlName, &pContainer);
if (error != ERROR_SUCCESS)
{
SetLastError(error);
return FALSE;
}
error = cache_container_open_index(pContainer, MIN_BLOCK_NO);
if (error != ERROR_SUCCESS)
{
SetLastError(error);
return FALSE;
}
if (!(pHeader = cache_container_lock_index(pContainer)))
return FALSE;
if (!urlcache_find_hash_entry(pHeader, lpszUrlName, &pHashEntry))
{
cache_container_unlock_index(pContainer, pHeader);
TRACE("entry %s not found!\n", debugstr_a(lpszUrlName));
SetLastError(ERROR_FILE_NOT_FOUND);
return FALSE;
}
pEntry = (entry_header*)((LPBYTE)pHeader + pHashEntry->offset);
if (pEntry->signature != URL_SIGNATURE)
{
FIXME("Trying to retrieve entry of unknown format %s\n", debugstr_an((LPSTR)&pEntry->signature, sizeof(DWORD)));
cache_container_unlock_index(pContainer, pHeader);
SetLastError(ERROR_FILE_NOT_FOUND);
return FALSE;
}
pUrlEntry = (entry_url *)pEntry;
if (pUrlEntry->use_count == 0)
{
cache_container_unlock_index(pContainer, pHeader);
return FALSE;
}
pUrlEntry->use_count--;
if (!pUrlEntry->use_count)
{
urlcache_hash_entry_set_flags(pHashEntry, HASHTABLE_URL);
if (pUrlEntry->cache_entry_type & PENDING_DELETE_CACHE_ENTRY)
urlcache_entry_delete(pContainer, pHeader, pHashEntry);
}
cache_container_unlock_index(pContainer, pHeader);
return TRUE;
}
/***********************************************************************
* UnlockUrlCacheEntryFileW (WININET.@)
*
*/
BOOL WINAPI UnlockUrlCacheEntryFileW(LPCWSTR lpszUrlName, DWORD dwReserved)
{
char *url;
BOOL ret;
if(!urlcache_encode_url_alloc(lpszUrlName, &url))
return FALSE;
ret = UnlockUrlCacheEntryFileA(url, dwReserved);
free(url);
return ret;
}
static BOOL urlcache_entry_create(const char *url, const char *ext, WCHAR *full_path)
{
cache_container *container;
urlcache_header *header;
char file_name[MAX_PATH];
WCHAR extW[MAX_PATH];
BYTE cache_dir;
LONG full_path_len, ext_len = 0;
BOOL generate_name = FALSE;
DWORD error;
HANDLE file;
FILETIME ft;
URL_COMPONENTSA uc;
int i;
TRACE("(%s, %s, %p)\n", debugstr_a(url), debugstr_a(ext), full_path);
memset(&uc, 0, sizeof(uc));
uc.dwStructSize = sizeof(uc);
uc.dwUrlPathLength = 1;
uc.dwExtraInfoLength = 1;
if(!InternetCrackUrlA(url, 0, 0, &uc))
uc.dwUrlPathLength = 0;
if(!uc.dwUrlPathLength) {
file_name[0] = 0;
}else {
char *p, *e;
p = e = uc.lpszUrlPath+uc.dwUrlPathLength;
while(p>uc.lpszUrlPath && *(p-1)!='/' && *(p-1)!='\\' && *(p-1)!='.')
p--;
if(p>uc.lpszUrlPath && *(p-1)=='.') {
e = p-1;
while(p>uc.lpszUrlPath && *(p-1)!='/' && *(p-1)!='\\')
p--;
}
if(e-p >= MAX_PATH)
e = p+MAX_PATH-1;
memcpy(file_name, p, e-p);
file_name[e-p] = 0;
for(p=file_name; *p; p++) {
switch(*p) {
case '<': case '>':
case ':': case '"':
case '|': case '?':
case '*':
*p = '_'; break;
default: break;
}
}
}
if(!file_name[0])
generate_name = TRUE;
error = cache_containers_find(url, &container);
if(error != ERROR_SUCCESS) {
SetLastError(error);
return FALSE;
}
error = cache_container_open_index(container, MIN_BLOCK_NO);
if(error != ERROR_SUCCESS) {
SetLastError(error);
return FALSE;
}
if(!(header = cache_container_lock_index(container)))
return FALSE;
if(header->dirs_no)
cache_dir = (BYTE)(rand() % header->dirs_no);
else
cache_dir = CACHE_CONTAINER_NO_SUBDIR;
full_path_len = MAX_PATH * sizeof(WCHAR);
if(!urlcache_create_file_pathW(container, header, file_name, cache_dir, full_path, &full_path_len, TRUE)) {
WARN("Failed to get full path for filename %s, needed %lu bytes.\n",
debugstr_a(file_name), full_path_len);
cache_container_unlock_index(container, header);
return FALSE;
}
full_path_len = full_path_len/sizeof(WCHAR) - 1;
cache_container_unlock_index(container, header);
if(ext) {
WCHAR *p;
extW[0] = '.';
ext_len = MultiByteToWideChar(CP_ACP, 0, ext, -1, extW+1, MAX_PATH-1);
for(p=extW; *p; p++) {
switch(*p) {
case '<': case '>':
case ':': case '"':
case '|': case '?':
case '*':
*p = '_'; break;
default: break;
}
}
if(p[-1]==' ' || p[-1]=='.')
p[-1] = '_';
}else {
extW[0] = '\0';
}
if(!generate_name && full_path_len+5+ext_len>=MAX_PATH) { /* strlen("[255]") = 5 */
full_path_len = MAX_PATH-5-ext_len-1;
}
for(i=0; i<255 && !generate_name; i++) {
wsprintfW(full_path+full_path_len, L"[%u]%s", i, extW);
TRACE("Trying: %s\n", debugstr_w(full_path));
file = CreateFileW(full_path, GENERIC_READ, 0, NULL, CREATE_NEW, 0, NULL);
if(file != INVALID_HANDLE_VALUE) {
CloseHandle(file);
return TRUE;
}
}
if(full_path_len+8+ext_len >= MAX_PATH)
full_path_len = MAX_PATH-8-ext_len-1;
/* Try to generate random name */
GetSystemTimeAsFileTime(&ft);
lstrcpyW(full_path+full_path_len+8, extW);
for(i=0; i<255; i++) {
int j;
ULONGLONG n = ft.dwHighDateTime;
n <<= 32;
n += ft.dwLowDateTime;
n ^= (ULONGLONG)i<<48;
for(j=0; j<8; j++) {
int r = (n % 36);
n /= 37;
full_path[full_path_len+j] = (r < 10 ? '0' + r : 'A' + r - 10);
}
TRACE("Trying: %s\n", debugstr_w(full_path));
file = CreateFileW(full_path, GENERIC_READ, 0, NULL, CREATE_NEW, 0, NULL);
if(file != INVALID_HANDLE_VALUE) {
CloseHandle(file);
return TRUE;
}
}
WARN("Could not find a unique filename\n");
return FALSE;
}
/***********************************************************************
* CreateUrlCacheEntryA (WININET.@)
*
*/
BOOL WINAPI CreateUrlCacheEntryA(LPCSTR lpszUrlName, DWORD dwExpectedFileSize,
LPCSTR lpszFileExtension, LPSTR lpszFileName, DWORD dwReserved)
{
WCHAR file_name[MAX_PATH];
if(dwReserved)
FIXME("dwReserved 0x%08lx\n", dwReserved);
if(!urlcache_entry_create(lpszUrlName, lpszFileExtension, file_name))
return FALSE;
if(!WideCharToMultiByte(CP_ACP, 0, file_name, -1, lpszFileName, MAX_PATH, NULL, NULL))
return FALSE;
return TRUE;
}
/***********************************************************************
* CreateUrlCacheEntryW (WININET.@)
*
*/
BOOL WINAPI CreateUrlCacheEntryW(LPCWSTR lpszUrlName, DWORD dwExpectedFileSize,
LPCWSTR lpszFileExtension, LPWSTR lpszFileName, DWORD dwReserved)
{
char *url, *ext = NULL;
BOOL ret;
if(dwReserved)
FIXME("dwReserved 0x%08lx\n", dwReserved);
if(lpszFileExtension) {
ext = strdupWtoUTF8(lpszFileExtension);
if(!ext)
return FALSE;
}
if(!urlcache_encode_url_alloc(lpszUrlName, &url)) {
free(ext);
return FALSE;
}
ret = urlcache_entry_create(url, ext, lpszFileName);
free(ext);
free(url);
return ret;
}
static BOOL urlcache_entry_commit(const char *url, const WCHAR *file_name,
FILETIME expire_time, FILETIME modify_time, DWORD entry_type,
BYTE *header_info, DWORD header_size, const char *file_ext,
const char *original_url)
{
cache_container *container;
urlcache_header *header;
struct hash_entry *hash_entry;
entry_header *entry;
entry_url *url_entry;
DWORD url_entry_offset;
DWORD size = DWORD_ALIGN(sizeof(*url_entry));
DWORD file_name_off = 0;
DWORD header_info_off = 0;
DWORD file_ext_off = 0;
WIN32_FILE_ATTRIBUTE_DATA file_attr;
LARGE_INTEGER file_size;
BYTE dir_id;
char file_name_no_container[MAX_PATH];
char *local_file_name = 0;
DWORD hit_rate = 0;
DWORD exempt_delta = 0;
DWORD error;
TRACE("(%s, %s, ..., ..., %lx, %p, %ld, %s, %s)\n", debugstr_a(url), debugstr_w(file_name),
entry_type, header_info, header_size, debugstr_a(file_ext), debugstr_a(original_url));
if(entry_type & STICKY_CACHE_ENTRY && !file_name) {
SetLastError(ERROR_INVALID_PARAMETER);
return FALSE;
}
if(original_url)
WARN(": original_url ignored\n");
memset(&file_attr, 0, sizeof(file_attr));
if(file_name) {
if(!GetFileAttributesExW(file_name, GetFileExInfoStandard, &file_attr))
return FALSE;
}
file_size.u.LowPart = file_attr.nFileSizeLow;
file_size.u.HighPart = file_attr.nFileSizeHigh;
error = cache_containers_find(url, &container);
if(error != ERROR_SUCCESS) {
SetLastError(error);
return FALSE;
}
error = cache_container_open_index(container, MIN_BLOCK_NO);
if(error != ERROR_SUCCESS) {
SetLastError(error);
return FALSE;
}
if(!(header = cache_container_lock_index(container)))
return FALSE;
if(urlcache_find_hash_entry(header, url, &hash_entry)) {
entry_url *url_entry = (entry_url*)((LPBYTE)header + hash_entry->offset);
if(urlcache_hash_entry_is_locked(hash_entry, url_entry)) {
TRACE("Trying to overwrite locked entry\n");
cache_container_unlock_index(container, header);
SetLastError(ERROR_SHARING_VIOLATION);
return FALSE;
}
hit_rate = url_entry->hit_rate;
exempt_delta = url_entry->exempt_delta;
urlcache_entry_delete(container, header, hash_entry);
}
if(header->dirs_no)
dir_id = 0;
else
dir_id = CACHE_CONTAINER_NO_SUBDIR;
if(file_name) {
BOOL bFound = FALSE;
if(wcsncmp(file_name, container->path, lstrlenW(container->path))) {
ERR("path %s must begin with cache content path %s\n", debugstr_w(file_name), debugstr_w(container->path));
cache_container_unlock_index(container, header);
SetLastError(ERROR_INVALID_PARAMETER);
return FALSE;
}
/* skip container path prefix */
file_name += lstrlenW(container->path);
WideCharToMultiByte(CP_ACP, 0, file_name, -1, file_name_no_container, MAX_PATH, NULL, NULL);
local_file_name = file_name_no_container;
if(header->dirs_no) {
for(dir_id = 0; dir_id < header->dirs_no; dir_id++) {
if(!strncmp(header->directory_data[dir_id].name, local_file_name, DIR_LENGTH)) {
bFound = TRUE;
break;
}
}
if(!bFound) {
ERR("cache directory not found in path %s\n", debugstr_w(file_name));
cache_container_unlock_index(container, header);
SetLastError(ERROR_INVALID_PARAMETER);
return FALSE;
}
file_name += DIR_LENGTH + 1;
local_file_name += DIR_LENGTH + 1;
}
}
size = DWORD_ALIGN(size + strlen(url) + 1);
if(file_name) {
file_name_off = size;
size = DWORD_ALIGN(size + strlen(local_file_name) + 1);
}
if(header_info && header_size) {
header_info_off = size;
size = DWORD_ALIGN(size + header_size);
}
if(file_ext && (file_ext_off = strlen(file_ext))) {
DWORD len = file_ext_off;
file_ext_off = size;
size = DWORD_ALIGN(size + len + 1);
}
/* round up to next block */
if(size % BLOCKSIZE) {
size -= size % BLOCKSIZE;
size += BLOCKSIZE;
}
error = urlcache_entry_alloc(header, size / BLOCKSIZE, &entry);
while(error == ERROR_HANDLE_DISK_FULL) {
error = cache_container_clean_index(container, &header);
if(error == ERROR_SUCCESS)
error = urlcache_entry_alloc(header, size / BLOCKSIZE, &entry);
}
if(error != ERROR_SUCCESS) {
cache_container_unlock_index(container, header);
SetLastError(error);
return FALSE;
}
/* FindFirstFreeEntry fills in blocks used */
url_entry = (entry_url *)entry;
url_entry_offset = (LPBYTE)url_entry - (LPBYTE)header;
url_entry->header.signature = URL_SIGNATURE;
url_entry->cache_dir = dir_id;
url_entry->cache_entry_type = entry_type | container->default_entry_type;
url_entry->header_info_size = header_size;
if((entry_type & STICKY_CACHE_ENTRY) && !exempt_delta) {
/* Sticky entries have a default exempt time of one day */
exempt_delta = 86400;
}
url_entry->exempt_delta = exempt_delta;
url_entry->hit_rate = hit_rate+1;
url_entry->file_extension_off = file_ext_off;
url_entry->header_info_off = header_info_off;
url_entry->local_name_off = file_name_off;
url_entry->url_off = DWORD_ALIGN(sizeof(*url_entry));
url_entry->size.QuadPart = file_size.QuadPart;
url_entry->use_count = 0;
GetSystemTimeAsFileTime(&url_entry->access_time);
url_entry->modification_time = modify_time;
file_time_to_dos_date_time(&url_entry->access_time, &url_entry->sync_date, &url_entry->sync_time);
file_time_to_dos_date_time(&expire_time, &url_entry->expire_date, &url_entry->expire_time);
file_time_to_dos_date_time(&file_attr.ftLastWriteTime, &url_entry->write_date, &url_entry->write_time);
/*** Unknowns ***/
url_entry->unk1 = 0;
url_entry->unk2 = 0;
url_entry->unk3 = 0x60;
url_entry->unk4 = 0;
url_entry->unk5 = 0x1010;
url_entry->unk7 = 0;
url_entry->unk8 = 0;
strcpy((LPSTR)url_entry + url_entry->url_off, url);
if(file_name_off)
strcpy((LPSTR)((LPBYTE)url_entry + file_name_off), local_file_name);
if(header_info_off)
memcpy((LPBYTE)url_entry + header_info_off, header_info, header_size);
if(file_ext_off)
strcpy((LPSTR)((LPBYTE)url_entry + file_ext_off), file_ext);
error = urlcache_hash_entry_create(header, url, url_entry_offset, HASHTABLE_URL);
while(error == ERROR_HANDLE_DISK_FULL) {
error = cache_container_clean_index(container, &header);
if(error == ERROR_SUCCESS) {
url_entry = (entry_url *)((LPBYTE)header + url_entry_offset);
error = urlcache_hash_entry_create(header, url,
url_entry_offset, HASHTABLE_URL);
}
}
if(error != ERROR_SUCCESS) {
urlcache_entry_free(header, &url_entry->header);
cache_container_unlock_index(container, header);
SetLastError(error);
return FALSE;
}
if(url_entry->cache_dir < header->dirs_no)
header->directory_data[url_entry->cache_dir].files_no++;
if(entry_type & STICKY_CACHE_ENTRY)
header->exempt_usage.QuadPart += file_size.QuadPart;
else
header->cache_usage.QuadPart += file_size.QuadPart;
if(header->cache_usage.QuadPart+header->exempt_usage.QuadPart > header->cache_limit.QuadPart)
handle_full_cache();
cache_container_unlock_index(container, header);
return TRUE;
}
/***********************************************************************
* CommitUrlCacheEntryA (WININET.@)
*/
BOOL WINAPI CommitUrlCacheEntryA(LPCSTR lpszUrlName, LPCSTR lpszLocalFileName,
FILETIME ExpireTime, FILETIME LastModifiedTime, DWORD CacheEntryType,
LPBYTE lpHeaderInfo, DWORD dwHeaderSize, LPCSTR lpszFileExtension, LPCSTR lpszOriginalUrl)
{
WCHAR *file_name = NULL;
BOOL ret;
if(lpszLocalFileName) {
file_name = strdupAtoW(lpszLocalFileName);
if(!file_name)
return FALSE;
}
ret = urlcache_entry_commit(lpszUrlName, file_name, ExpireTime, LastModifiedTime,
CacheEntryType, lpHeaderInfo, dwHeaderSize, lpszFileExtension, lpszOriginalUrl);
free(file_name);
return ret;
}
/***********************************************************************
* CommitUrlCacheEntryW (WININET.@)
*/
BOOL WINAPI CommitUrlCacheEntryW(LPCWSTR lpszUrlName, LPCWSTR lpszLocalFileName,
FILETIME ExpireTime, FILETIME LastModifiedTime, DWORD CacheEntryType,
LPWSTR lpHeaderInfo, DWORD dwHeaderSize, LPCWSTR lpszFileExtension, LPCWSTR lpszOriginalUrl)
{
char *url, *original_url=NULL, *file_ext=NULL, *header_info=NULL;
BOOL ret;
if(!urlcache_encode_url_alloc(lpszUrlName, &url))
return FALSE;
if(lpHeaderInfo) {
header_info = strdupWtoUTF8(lpHeaderInfo);
if(!header_info) {
free(url);
return FALSE;
}
dwHeaderSize = strlen(header_info);
}
if(lpszFileExtension) {
file_ext = strdupWtoA(lpszFileExtension);
if(!file_ext) {
free(url);
free(header_info);
return FALSE;
}
}
if(lpszOriginalUrl && !urlcache_encode_url_alloc(lpszOriginalUrl, &original_url)) {
free(url);
free(header_info);
free(file_ext);
return FALSE;
}
ret = urlcache_entry_commit(url, lpszLocalFileName, ExpireTime, LastModifiedTime,
CacheEntryType, (BYTE*)header_info, dwHeaderSize, file_ext, original_url);
free(url);
free(header_info);
free(file_ext);
free(original_url);
return ret;
}
/***********************************************************************
* ReadUrlCacheEntryStream (WININET.@)
*
*/
BOOL WINAPI ReadUrlCacheEntryStream(
IN HANDLE hUrlCacheStream,
IN DWORD dwLocation,
IN OUT LPVOID lpBuffer,
IN OUT LPDWORD lpdwLen,
IN DWORD dwReserved
)
{
/* Get handle to file from 'stream' */
stream_handle *pStream = (stream_handle*)hUrlCacheStream;
if (dwReserved != 0)
{
ERR("dwReserved != 0\n");
SetLastError(ERROR_INVALID_PARAMETER);
return FALSE;
}
if (IsBadReadPtr(pStream, sizeof(*pStream)) || IsBadStringPtrA(pStream->url, INTERNET_MAX_URL_LENGTH))
{
SetLastError(ERROR_INVALID_HANDLE);
return FALSE;
}
if (SetFilePointer(pStream->file, dwLocation, NULL, FILE_CURRENT) == INVALID_SET_FILE_POINTER)
return FALSE;
return ReadFile(pStream->file, lpBuffer, *lpdwLen, lpdwLen, NULL);
}
/***********************************************************************
* RetrieveUrlCacheEntryStreamA (WININET.@)
*
*/
HANDLE WINAPI RetrieveUrlCacheEntryStreamA(LPCSTR lpszUrlName,
LPINTERNET_CACHE_ENTRY_INFOA lpCacheEntryInfo,
LPDWORD lpdwCacheEntryInfoBufferSize, BOOL fRandomRead, DWORD dwReserved)
{
/* NOTE: this is not the same as the way that the native
* version allocates 'stream' handles. I did it this way
* as it is much easier and no applications should depend
* on this behaviour. (Native version appears to allocate
* indices into a table)
*/
stream_handle *stream;
HANDLE file;
TRACE("(%s, %p, %p, %x, 0x%08lx)\n", debugstr_a(lpszUrlName), lpCacheEntryInfo,
lpdwCacheEntryInfoBufferSize, fRandomRead, dwReserved);
if(!RetrieveUrlCacheEntryFileA(lpszUrlName, lpCacheEntryInfo,
lpdwCacheEntryInfoBufferSize, dwReserved))
return NULL;
file = CreateFileA(lpCacheEntryInfo->lpszLocalFileName, GENERIC_READ, FILE_SHARE_READ,
NULL, OPEN_EXISTING, fRandomRead ? FILE_FLAG_RANDOM_ACCESS : 0, NULL);
if(file == INVALID_HANDLE_VALUE) {
UnlockUrlCacheEntryFileA(lpszUrlName, 0);
return NULL;
}
/* allocate handle storage space */
stream = malloc(sizeof(stream_handle) + strlen(lpszUrlName) * sizeof(CHAR));
if(!stream) {
CloseHandle(file);
UnlockUrlCacheEntryFileA(lpszUrlName, 0);
SetLastError(ERROR_OUTOFMEMORY);
return NULL;
}
stream->file = file;
strcpy(stream->url, lpszUrlName);
return stream;
}
/***********************************************************************
* RetrieveUrlCacheEntryStreamW (WININET.@)
*
*/
HANDLE WINAPI RetrieveUrlCacheEntryStreamW(LPCWSTR lpszUrlName,
LPINTERNET_CACHE_ENTRY_INFOW lpCacheEntryInfo,
LPDWORD lpdwCacheEntryInfoBufferSize, BOOL fRandomRead, DWORD dwReserved)
{
DWORD len;
/* NOTE: this is not the same as the way that the native
* version allocates 'stream' handles. I did it this way
* as it is much easier and no applications should depend
* on this behaviour. (Native version appears to allocate
* indices into a table)
*/
stream_handle *stream;
HANDLE file;
TRACE("(%s, %p, %p, %x, 0x%08lx)\n", debugstr_w(lpszUrlName), lpCacheEntryInfo,
lpdwCacheEntryInfoBufferSize, fRandomRead, dwReserved);
if(!(len = urlcache_encode_url(lpszUrlName, NULL, 0)))
return NULL;
if(!RetrieveUrlCacheEntryFileW(lpszUrlName, lpCacheEntryInfo,
lpdwCacheEntryInfoBufferSize, dwReserved))
return NULL;
file = CreateFileW(lpCacheEntryInfo->lpszLocalFileName, GENERIC_READ, FILE_SHARE_READ,
NULL, OPEN_EXISTING, fRandomRead ? FILE_FLAG_RANDOM_ACCESS : 0, NULL);
if(file == INVALID_HANDLE_VALUE) {
UnlockUrlCacheEntryFileW(lpszUrlName, 0);
return NULL;
}
/* allocate handle storage space */
stream = malloc(sizeof(stream_handle) + len * sizeof(WCHAR));
if(!stream) {
CloseHandle(file);
UnlockUrlCacheEntryFileW(lpszUrlName, 0);
SetLastError(ERROR_OUTOFMEMORY);
return NULL;
}
stream->file = file;
if(!urlcache_encode_url(lpszUrlName, stream->url, len)) {
CloseHandle(file);
UnlockUrlCacheEntryFileW(lpszUrlName, 0);
free(stream);
return NULL;
}
return stream;
}
/***********************************************************************
* UnlockUrlCacheEntryStream (WININET.@)
*
*/
BOOL WINAPI UnlockUrlCacheEntryStream(
IN HANDLE hUrlCacheStream,
IN DWORD dwReserved
)
{
stream_handle *pStream = (stream_handle*)hUrlCacheStream;
if (dwReserved != 0)
{
ERR("dwReserved != 0\n");
SetLastError(ERROR_INVALID_PARAMETER);
return FALSE;
}
if (IsBadReadPtr(pStream, sizeof(*pStream)) || IsBadStringPtrA(pStream->url, INTERNET_MAX_URL_LENGTH))
{
SetLastError(ERROR_INVALID_HANDLE);
return FALSE;
}
if (!UnlockUrlCacheEntryFileA(pStream->url, 0))
return FALSE;
CloseHandle(pStream->file);
free(pStream);
return TRUE;
}
/***********************************************************************
* DeleteUrlCacheEntryA (WININET.@)
*
*/
BOOL WINAPI DeleteUrlCacheEntryA(LPCSTR lpszUrlName)
{
cache_container *pContainer;
urlcache_header *pHeader;
struct hash_entry *pHashEntry;
DWORD error;
BOOL ret;
TRACE("(%s)\n", debugstr_a(lpszUrlName));
error = cache_containers_find(lpszUrlName, &pContainer);
if (error != ERROR_SUCCESS)
{
SetLastError(error);
return FALSE;
}
error = cache_container_open_index(pContainer, MIN_BLOCK_NO);
if (error != ERROR_SUCCESS)
{
SetLastError(error);
return FALSE;
}
if (!(pHeader = cache_container_lock_index(pContainer)))
return FALSE;
if (!urlcache_find_hash_entry(pHeader, lpszUrlName, &pHashEntry))
{
cache_container_unlock_index(pContainer, pHeader);
TRACE("entry %s not found!\n", debugstr_a(lpszUrlName));
SetLastError(ERROR_FILE_NOT_FOUND);
return FALSE;
}
ret = urlcache_entry_delete(pContainer, pHeader, pHashEntry);
cache_container_unlock_index(pContainer, pHeader);
return ret;
}
/***********************************************************************
* DeleteUrlCacheEntryW (WININET.@)
*
*/
BOOL WINAPI DeleteUrlCacheEntryW(LPCWSTR lpszUrlName)
{
char *url;
BOOL ret;
if(!urlcache_encode_url_alloc(lpszUrlName, &url))
return FALSE;
ret = DeleteUrlCacheEntryA(url);
free(url);
return ret;
}
BOOL WINAPI DeleteUrlCacheContainerA(DWORD d1, DWORD d2)
{
FIXME("(0x%08lx, 0x%08lx) stub\n", d1, d2);
return TRUE;
}
BOOL WINAPI DeleteUrlCacheContainerW(DWORD d1, DWORD d2)
{
FIXME("(0x%08lx, 0x%08lx) stub\n", d1, d2);
return TRUE;
}
/***********************************************************************
* CreateCacheContainerA (WININET.@)
*/
BOOL WINAPI CreateUrlCacheContainerA(DWORD d1, DWORD d2, DWORD d3, DWORD d4,
DWORD d5, DWORD d6, DWORD d7, DWORD d8)
{
FIXME("(0x%08lx, 0x%08lx, 0x%08lx, 0x%08lx, 0x%08lx, 0x%08lx, 0x%08lx, 0x%08lx) stub\n",
d1, d2, d3, d4, d5, d6, d7, d8);
return TRUE;
}
/***********************************************************************
* CreateCacheContainerW (WININET.@)
*/
BOOL WINAPI CreateUrlCacheContainerW(DWORD d1, DWORD d2, DWORD d3, DWORD d4,
DWORD d5, DWORD d6, DWORD d7, DWORD d8)
{
FIXME("(0x%08lx, 0x%08lx, 0x%08lx, 0x%08lx, 0x%08lx, 0x%08lx, 0x%08lx, 0x%08lx) stub\n",
d1, d2, d3, d4, d5, d6, d7, d8);
return TRUE;
}
/***********************************************************************
* FindFirstUrlCacheContainerA (WININET.@)
*/
HANDLE WINAPI FindFirstUrlCacheContainerA( LPVOID p1, LPVOID p2, LPVOID p3, DWORD d1 )
{
FIXME("(%p, %p, %p, 0x%08lx) stub\n", p1, p2, p3, d1 );
return NULL;
}
/***********************************************************************
* FindFirstUrlCacheContainerW (WININET.@)
*/
HANDLE WINAPI FindFirstUrlCacheContainerW( LPVOID p1, LPVOID p2, LPVOID p3, DWORD d1 )
{
FIXME("(%p, %p, %p, 0x%08lx) stub\n", p1, p2, p3, d1 );
return NULL;
}
/***********************************************************************
* FindNextUrlCacheContainerA (WININET.@)
*/
BOOL WINAPI FindNextUrlCacheContainerA( HANDLE handle, LPVOID p1, LPVOID p2 )
{
FIXME("(%p, %p, %p) stub\n", handle, p1, p2 );
return FALSE;
}
/***********************************************************************
* FindNextUrlCacheContainerW (WININET.@)
*/
BOOL WINAPI FindNextUrlCacheContainerW( HANDLE handle, LPVOID p1, LPVOID p2 )
{
FIXME("(%p, %p, %p) stub\n", handle, p1, p2 );
return FALSE;
}
HANDLE WINAPI FindFirstUrlCacheEntryExA(
LPCSTR lpszUrlSearchPattern,
DWORD dwFlags,
DWORD dwFilter,
GROUPID GroupId,
LPINTERNET_CACHE_ENTRY_INFOA lpFirstCacheEntryInfo,
LPDWORD lpdwFirstCacheEntryInfoBufferSize,
LPVOID lpReserved,
LPDWORD pcbReserved2,
LPVOID lpReserved3
)
{
FIXME("(%s, 0x%08lx, 0x%08lx, 0x%s, %p, %p, %p, %p, %p) stub\n", debugstr_a(lpszUrlSearchPattern),
dwFlags, dwFilter, wine_dbgstr_longlong(GroupId), lpFirstCacheEntryInfo,
lpdwFirstCacheEntryInfoBufferSize, lpReserved, pcbReserved2,lpReserved3);
SetLastError(ERROR_FILE_NOT_FOUND);
return NULL;
}
HANDLE WINAPI FindFirstUrlCacheEntryExW(
LPCWSTR lpszUrlSearchPattern,
DWORD dwFlags,
DWORD dwFilter,
GROUPID GroupId,
LPINTERNET_CACHE_ENTRY_INFOW lpFirstCacheEntryInfo,
LPDWORD lpdwFirstCacheEntryInfoBufferSize,
LPVOID lpReserved,
LPDWORD pcbReserved2,
LPVOID lpReserved3
)
{
FIXME("(%s, 0x%08lx, 0x%08lx, 0x%s, %p, %p, %p, %p, %p) stub\n", debugstr_w(lpszUrlSearchPattern),
dwFlags, dwFilter, wine_dbgstr_longlong(GroupId), lpFirstCacheEntryInfo,
lpdwFirstCacheEntryInfoBufferSize, lpReserved, pcbReserved2,lpReserved3);
SetLastError(ERROR_FILE_NOT_FOUND);
return NULL;
}
/***********************************************************************
* FindFirstUrlCacheEntryA (WININET.@)
*
*/
INTERNETAPI HANDLE WINAPI FindFirstUrlCacheEntryA(LPCSTR lpszUrlSearchPattern,
LPINTERNET_CACHE_ENTRY_INFOA lpFirstCacheEntryInfo, LPDWORD lpdwFirstCacheEntryInfoBufferSize)
{
find_handle *pEntryHandle;
TRACE("(%s, %p, %p)\n", debugstr_a(lpszUrlSearchPattern), lpFirstCacheEntryInfo, lpdwFirstCacheEntryInfoBufferSize);
pEntryHandle = malloc(sizeof(*pEntryHandle));
if (!pEntryHandle)
return NULL;
pEntryHandle->magic = URLCACHE_FIND_ENTRY_HANDLE_MAGIC;
if (lpszUrlSearchPattern)
{
pEntryHandle->url_search_pattern = strdup(lpszUrlSearchPattern);
if (!pEntryHandle->url_search_pattern)
{
free(pEntryHandle);
return NULL;
}
}
else
pEntryHandle->url_search_pattern = NULL;
pEntryHandle->container_idx = 0;
pEntryHandle->hash_table_idx = 0;
pEntryHandle->hash_entry_idx = 0;
if (!FindNextUrlCacheEntryA(pEntryHandle, lpFirstCacheEntryInfo, lpdwFirstCacheEntryInfoBufferSize))
{
free(pEntryHandle);
return NULL;
}
return pEntryHandle;
}
/***********************************************************************
* FindFirstUrlCacheEntryW (WININET.@)
*
*/
INTERNETAPI HANDLE WINAPI FindFirstUrlCacheEntryW(LPCWSTR lpszUrlSearchPattern,
LPINTERNET_CACHE_ENTRY_INFOW lpFirstCacheEntryInfo, LPDWORD lpdwFirstCacheEntryInfoBufferSize)
{
find_handle *pEntryHandle;
TRACE("(%s, %p, %p)\n", debugstr_w(lpszUrlSearchPattern), lpFirstCacheEntryInfo, lpdwFirstCacheEntryInfoBufferSize);
pEntryHandle = malloc(sizeof(*pEntryHandle));
if (!pEntryHandle)
return NULL;
pEntryHandle->magic = URLCACHE_FIND_ENTRY_HANDLE_MAGIC;
if (lpszUrlSearchPattern)
{
pEntryHandle->url_search_pattern = strdupWtoA(lpszUrlSearchPattern);
if (!pEntryHandle->url_search_pattern)
{
free(pEntryHandle);
return NULL;
}
}
else
pEntryHandle->url_search_pattern = NULL;
pEntryHandle->container_idx = 0;
pEntryHandle->hash_table_idx = 0;
pEntryHandle->hash_entry_idx = 0;
if (!FindNextUrlCacheEntryW(pEntryHandle, lpFirstCacheEntryInfo, lpdwFirstCacheEntryInfoBufferSize))
{
free(pEntryHandle);
return NULL;
}
return pEntryHandle;
}
static BOOL urlcache_find_next_entry(
HANDLE hEnumHandle,
LPINTERNET_CACHE_ENTRY_INFOA lpNextCacheEntryInfo,
LPDWORD lpdwNextCacheEntryInfoBufferSize,
BOOL unicode)
{
find_handle *pEntryHandle = (find_handle*)hEnumHandle;
cache_container *pContainer;
if (pEntryHandle->magic != URLCACHE_FIND_ENTRY_HANDLE_MAGIC)
{
SetLastError(ERROR_INVALID_HANDLE);
return FALSE;
}
for (; cache_containers_enum(pEntryHandle->url_search_pattern, pEntryHandle->container_idx, &pContainer);
pEntryHandle->container_idx++, pEntryHandle->hash_table_idx = 0)
{
urlcache_header *pHeader;
entry_hash_table *pHashTableEntry;
DWORD error;
error = cache_container_open_index(pContainer, MIN_BLOCK_NO);
if (error != ERROR_SUCCESS)
{
SetLastError(error);
return FALSE;
}
if (!(pHeader = cache_container_lock_index(pContainer)))
return FALSE;
for (; urlcache_enum_hash_tables(pHeader, &pEntryHandle->hash_table_idx, &pHashTableEntry);
pEntryHandle->hash_table_idx++, pEntryHandle->hash_entry_idx = 0)
{
const struct hash_entry *pHashEntry = NULL;
for (; urlcache_enum_hash_table_entries(pHeader, pHashTableEntry, &pEntryHandle->hash_entry_idx, &pHashEntry);
pEntryHandle->hash_entry_idx++)
{
const entry_url *pUrlEntry;
const entry_header *pEntry = (const entry_header*)((LPBYTE)pHeader + pHashEntry->offset);
if (pEntry->signature != URL_SIGNATURE)
continue;
pUrlEntry = (const entry_url *)pEntry;
TRACE("Found URL: %s\n",
debugstr_a((LPCSTR)pUrlEntry + pUrlEntry->url_off));
TRACE("Header info: %s\n",
debugstr_an((LPCSTR)pUrlEntry + pUrlEntry->header_info_off,
pUrlEntry->header_info_size));
error = urlcache_copy_entry(
pContainer,
pHeader,
lpNextCacheEntryInfo,
lpdwNextCacheEntryInfoBufferSize,
pUrlEntry,
unicode);
if (error != ERROR_SUCCESS)
{
cache_container_unlock_index(pContainer, pHeader);
SetLastError(error);
return FALSE;
}
if(pUrlEntry->local_name_off)
TRACE("Local File Name: %s\n", debugstr_a((LPCSTR)pUrlEntry + pUrlEntry->local_name_off));
/* increment the current index so that next time the function
* is called the next entry is returned */
pEntryHandle->hash_entry_idx++;
cache_container_unlock_index(pContainer, pHeader);
return TRUE;
}
}
cache_container_unlock_index(pContainer, pHeader);
}
SetLastError(ERROR_NO_MORE_ITEMS);
return FALSE;
}
/***********************************************************************
* FindNextUrlCacheEntryA (WININET.@)
*/
BOOL WINAPI FindNextUrlCacheEntryA(
HANDLE hEnumHandle,
LPINTERNET_CACHE_ENTRY_INFOA lpNextCacheEntryInfo,
LPDWORD lpdwNextCacheEntryInfoBufferSize)
{
TRACE("(%p, %p, %p)\n", hEnumHandle, lpNextCacheEntryInfo, lpdwNextCacheEntryInfoBufferSize);
return urlcache_find_next_entry(hEnumHandle, lpNextCacheEntryInfo,
lpdwNextCacheEntryInfoBufferSize, FALSE /* not UNICODE */);
}
/***********************************************************************
* FindNextUrlCacheEntryW (WININET.@)
*/
BOOL WINAPI FindNextUrlCacheEntryW(
HANDLE hEnumHandle,
LPINTERNET_CACHE_ENTRY_INFOW lpNextCacheEntryInfo,
LPDWORD lpdwNextCacheEntryInfoBufferSize
)
{
TRACE("(%p, %p, %p)\n", hEnumHandle, lpNextCacheEntryInfo, lpdwNextCacheEntryInfoBufferSize);
return urlcache_find_next_entry(hEnumHandle,
(LPINTERNET_CACHE_ENTRY_INFOA)lpNextCacheEntryInfo,
lpdwNextCacheEntryInfoBufferSize, TRUE /* UNICODE */);
}
/***********************************************************************
* FindCloseUrlCache (WININET.@)
*/
BOOL WINAPI FindCloseUrlCache(HANDLE hEnumHandle)
{
find_handle *pEntryHandle = (find_handle*)hEnumHandle;
TRACE("(%p)\n", hEnumHandle);
if (!pEntryHandle || pEntryHandle->magic != URLCACHE_FIND_ENTRY_HANDLE_MAGIC)
{
SetLastError(ERROR_INVALID_HANDLE);
return FALSE;
}
/* Ensure compiler doesn't optimize out the assignment with 0. */
SecureZeroMemory(&pEntryHandle->magic, sizeof(pEntryHandle->magic));
free(pEntryHandle->url_search_pattern);
free(pEntryHandle);
return TRUE;
}
HANDLE WINAPI FindFirstUrlCacheGroup( DWORD dwFlags, DWORD dwFilter, LPVOID lpSearchCondition,
DWORD dwSearchCondition, GROUPID* lpGroupId, LPVOID lpReserved )
{
FIXME("(0x%08lx, 0x%08lx, %p, 0x%08lx, %p, %p) stub\n", dwFlags, dwFilter, lpSearchCondition,
dwSearchCondition, lpGroupId, lpReserved);
return NULL;
}
BOOL WINAPI FindNextUrlCacheEntryExA(
HANDLE hEnumHandle,
LPINTERNET_CACHE_ENTRY_INFOA lpFirstCacheEntryInfo,
LPDWORD lpdwFirstCacheEntryInfoBufferSize,
LPVOID lpReserved,
LPDWORD pcbReserved2,
LPVOID lpReserved3
)
{
FIXME("(%p, %p, %p, %p, %p, %p) stub\n", hEnumHandle, lpFirstCacheEntryInfo, lpdwFirstCacheEntryInfoBufferSize,
lpReserved, pcbReserved2, lpReserved3);
return FALSE;
}
BOOL WINAPI FindNextUrlCacheEntryExW(
HANDLE hEnumHandle,
LPINTERNET_CACHE_ENTRY_INFOW lpFirstCacheEntryInfo,
LPDWORD lpdwFirstCacheEntryInfoBufferSize,
LPVOID lpReserved,
LPDWORD pcbReserved2,
LPVOID lpReserved3
)
{
FIXME("(%p, %p, %p, %p, %p, %p) stub\n", hEnumHandle, lpFirstCacheEntryInfo, lpdwFirstCacheEntryInfoBufferSize,
lpReserved, pcbReserved2, lpReserved3);
return FALSE;
}
BOOL WINAPI FindNextUrlCacheGroup( HANDLE hFind, GROUPID* lpGroupId, LPVOID lpReserved )
{
FIXME("(%p, %p, %p) stub\n", hFind, lpGroupId, lpReserved);
return FALSE;
}
/***********************************************************************
* CreateUrlCacheGroup (WININET.@)
*
*/
INTERNETAPI GROUPID WINAPI CreateUrlCacheGroup(DWORD dwFlags, LPVOID lpReserved)
{
FIXME("(0x%08lx, %p): stub\n", dwFlags, lpReserved);
return FALSE;
}
/***********************************************************************
* DeleteUrlCacheGroup (WININET.@)
*
*/
BOOL WINAPI DeleteUrlCacheGroup(GROUPID GroupId, DWORD dwFlags, LPVOID lpReserved)
{
FIXME("(0x%s, 0x%08lx, %p) stub\n",
wine_dbgstr_longlong(GroupId), dwFlags, lpReserved);
return FALSE;
}
/***********************************************************************
* DeleteWpadCacheForNetworks (WININET.@)
* Undocumented, added in IE8
*/
BOOL WINAPI DeleteWpadCacheForNetworks(DWORD unk1)
{
FIXME("(%ld) stub\n", unk1);
return FALSE;
}
/***********************************************************************
* SetUrlCacheEntryGroupA (WININET.@)
*
*/
BOOL WINAPI SetUrlCacheEntryGroupA(LPCSTR lpszUrlName, DWORD dwFlags,
GROUPID GroupId, LPBYTE pbGroupAttributes, DWORD cbGroupAttributes,
LPVOID lpReserved)
{
FIXME("(%s, 0x%08lx, 0x%s, %p, 0x%08lx, %p) stub\n",
debugstr_a(lpszUrlName), dwFlags, wine_dbgstr_longlong(GroupId),
pbGroupAttributes, cbGroupAttributes, lpReserved);
SetLastError(ERROR_FILE_NOT_FOUND);
return FALSE;
}
/***********************************************************************
* SetUrlCacheEntryGroupW (WININET.@)
*
*/
BOOL WINAPI SetUrlCacheEntryGroupW(LPCWSTR lpszUrlName, DWORD dwFlags,
GROUPID GroupId, LPBYTE pbGroupAttributes, DWORD cbGroupAttributes,
LPVOID lpReserved)
{
FIXME("(%s, 0x%08lx, 0x%s, %p, 0x%08lx, %p) stub\n",
debugstr_w(lpszUrlName), dwFlags, wine_dbgstr_longlong(GroupId),
pbGroupAttributes, cbGroupAttributes, lpReserved);
SetLastError(ERROR_FILE_NOT_FOUND);
return FALSE;
}
static cache_container *find_container(DWORD flags)
{
cache_container *container;
LIST_FOR_EACH_ENTRY(container, &UrlContainers, cache_container, entry)
{
switch (flags & (CACHE_CONFIG_CONTENT_PATHS_FC | CACHE_CONFIG_COOKIES_PATHS_FC | CACHE_CONFIG_HISTORY_PATHS_FC))
{
case 0:
case CACHE_CONFIG_CONTENT_PATHS_FC:
if (container->default_entry_type == NORMAL_CACHE_ENTRY)
return container;
break;
case CACHE_CONFIG_COOKIES_PATHS_FC:
if (container->default_entry_type == COOKIE_CACHE_ENTRY)
return container;
break;
case CACHE_CONFIG_HISTORY_PATHS_FC:
if (container->default_entry_type == URLHISTORY_CACHE_ENTRY)
return container;
break;
default:
FIXME("flags %08lx not handled\n", flags);
break;
}
}
return NULL;
}
/***********************************************************************
* GetUrlCacheConfigInfoW (WININET.@)
*/
BOOL WINAPI GetUrlCacheConfigInfoW(LPINTERNET_CACHE_CONFIG_INFOW info, LPDWORD size, DWORD flags)
{
cache_container *container;
DWORD error;
FIXME("(%p, %p, %lx): semi-stub\n", info, size, flags);
if (!info || !(container = find_container(flags)))
{
INTERNET_SetLastError(ERROR_INVALID_PARAMETER);
return FALSE;
}
error = cache_container_open_index(container, MIN_BLOCK_NO);
if (error != ERROR_SUCCESS)
{
INTERNET_SetLastError(error);
return FALSE;
}
info->dwContainer = 0;
info->dwQuota = FILE_SIZE(MAX_BLOCK_NO) / 1024;
info->dwReserved4 = 0;
info->fPerUser = TRUE;
info->dwSyncMode = 0;
info->dwNumCachePaths = 1;
info->dwNormalUsage = 0;
info->dwExemptUsage = 0;
info->dwCacheSize = container->file_size / 1024;
lstrcpynW(info->CachePath, container->path, MAX_PATH);
cache_container_close_index(container);
TRACE("CachePath %s\n", debugstr_w(info->CachePath));
return TRUE;
}
/***********************************************************************
* GetUrlCacheConfigInfoA (WININET.@)
*/
BOOL WINAPI GetUrlCacheConfigInfoA(LPINTERNET_CACHE_CONFIG_INFOA info, LPDWORD size, DWORD flags)
{
INTERNET_CACHE_CONFIG_INFOW infoW;
TRACE("(%p, %p, %lx)\n", info, size, flags);
if (!info)
{
INTERNET_SetLastError(ERROR_INVALID_PARAMETER);
return FALSE;
}
infoW.dwStructSize = sizeof(infoW);
if (!GetUrlCacheConfigInfoW(&infoW, size, flags))
return FALSE;
info->dwContainer = infoW.dwContainer;
info->dwQuota = infoW.dwQuota;
info->dwReserved4 = infoW.dwReserved4;
info->fPerUser = infoW.fPerUser;
info->dwSyncMode = infoW.dwSyncMode;
info->dwNumCachePaths = infoW.dwNumCachePaths;
info->dwNormalUsage = infoW.dwNormalUsage;
info->dwExemptUsage = infoW.dwExemptUsage;
info->dwCacheSize = infoW.dwCacheSize;
WideCharToMultiByte(CP_ACP, 0, infoW.CachePath, -1, info->CachePath, MAX_PATH, NULL, NULL);
return TRUE;
}
BOOL WINAPI GetUrlCacheGroupAttributeA( GROUPID gid, DWORD dwFlags, DWORD dwAttributes,
LPINTERNET_CACHE_GROUP_INFOA lpGroupInfo,
LPDWORD lpdwGroupInfo, LPVOID lpReserved )
{
FIXME("(0x%s, 0x%08lx, 0x%08lx, %p, %p, %p) stub\n",
wine_dbgstr_longlong(gid), dwFlags, dwAttributes, lpGroupInfo,
lpdwGroupInfo, lpReserved);
return FALSE;
}
BOOL WINAPI GetUrlCacheGroupAttributeW( GROUPID gid, DWORD dwFlags, DWORD dwAttributes,
LPINTERNET_CACHE_GROUP_INFOW lpGroupInfo,
LPDWORD lpdwGroupInfo, LPVOID lpReserved )
{
FIXME("(0x%s, 0x%08lx, 0x%08lx, %p, %p, %p) stub\n",
wine_dbgstr_longlong(gid), dwFlags, dwAttributes, lpGroupInfo,
lpdwGroupInfo, lpReserved);
return FALSE;
}
BOOL WINAPI SetUrlCacheGroupAttributeA( GROUPID gid, DWORD dwFlags, DWORD dwAttributes,
LPINTERNET_CACHE_GROUP_INFOA lpGroupInfo, LPVOID lpReserved )
{
FIXME("(0x%s, 0x%08lx, 0x%08lx, %p, %p) stub\n",
wine_dbgstr_longlong(gid), dwFlags, dwAttributes, lpGroupInfo, lpReserved);
return TRUE;
}
BOOL WINAPI SetUrlCacheGroupAttributeW( GROUPID gid, DWORD dwFlags, DWORD dwAttributes,
LPINTERNET_CACHE_GROUP_INFOW lpGroupInfo, LPVOID lpReserved )
{
FIXME("(0x%s, 0x%08lx, 0x%08lx, %p, %p) stub\n",
wine_dbgstr_longlong(gid), dwFlags, dwAttributes, lpGroupInfo, lpReserved);
return TRUE;
}
BOOL WINAPI SetUrlCacheConfigInfoA( LPINTERNET_CACHE_CONFIG_INFOA lpCacheConfigInfo, DWORD dwFieldControl )
{
FIXME("(%p, 0x%08lx) stub\n", lpCacheConfigInfo, dwFieldControl);
return TRUE;
}
BOOL WINAPI SetUrlCacheConfigInfoW( LPINTERNET_CACHE_CONFIG_INFOW lpCacheConfigInfo, DWORD dwFieldControl )
{
FIXME("(%p, 0x%08lx) stub\n", lpCacheConfigInfo, dwFieldControl);
return TRUE;
}
/***********************************************************************
* DeleteIE3Cache (WININET.@)
*
* Deletes the files used by the IE3 URL caching system.
*
* PARAMS
* hWnd [I] A dummy window.
* hInst [I] Instance of process calling the function.
* lpszCmdLine [I] Options used by function.
* nCmdShow [I] The nCmdShow value to use when showing windows created, if any.
*/
DWORD WINAPI DeleteIE3Cache(HWND hWnd, HINSTANCE hInst, LPSTR lpszCmdLine, int nCmdShow)
{
FIXME("(%p, %p, %s, %d)\n", hWnd, hInst, debugstr_a(lpszCmdLine), nCmdShow);
return 0;
}
static BOOL urlcache_entry_is_expired(const entry_url *pUrlEntry,
FILETIME *pftLastModified)
{
BOOL ret;
FILETIME now, expired;
*pftLastModified = pUrlEntry->modification_time;
GetSystemTimeAsFileTime(&now);
dos_date_time_to_file_time(pUrlEntry->expire_date,
pUrlEntry->expire_time, &expired);
/* If the expired time is 0, it's interpreted as not expired */
if (!expired.dwLowDateTime && !expired.dwHighDateTime)
ret = FALSE;
else
ret = CompareFileTime(&expired, &now) < 0;
return ret;
}
/***********************************************************************
* IsUrlCacheEntryExpiredA (WININET.@)
*
* PARAMS
* url [I] Url
* dwFlags [I] Unknown
* pftLastModified [O] Last modified time
*/
BOOL WINAPI IsUrlCacheEntryExpiredA(LPCSTR url, DWORD dwFlags, FILETIME* pftLastModified)
{
urlcache_header *pHeader;
struct hash_entry *pHashEntry;
const entry_header *pEntry;
const entry_url * pUrlEntry;
cache_container *pContainer;
BOOL expired;
TRACE("(%s, %08lx, %p)\n", debugstr_a(url), dwFlags, pftLastModified);
if (!url || !pftLastModified)
return TRUE;
if (dwFlags)
FIXME("unknown flags 0x%08lx\n", dwFlags);
/* Any error implies that the URL is expired, i.e. not in the cache */
if (cache_containers_find(url, &pContainer))
{
memset(pftLastModified, 0, sizeof(*pftLastModified));
return TRUE;
}
if (cache_container_open_index(pContainer, MIN_BLOCK_NO))
{
memset(pftLastModified, 0, sizeof(*pftLastModified));
return TRUE;
}
if (!(pHeader = cache_container_lock_index(pContainer)))
{
memset(pftLastModified, 0, sizeof(*pftLastModified));
return TRUE;
}
if (!urlcache_find_hash_entry(pHeader, url, &pHashEntry))
{
cache_container_unlock_index(pContainer, pHeader);
memset(pftLastModified, 0, sizeof(*pftLastModified));
TRACE("entry %s not found!\n", url);
return TRUE;
}
pEntry = (const entry_header*)((LPBYTE)pHeader + pHashEntry->offset);
if (pEntry->signature != URL_SIGNATURE)
{
FIXME("Trying to retrieve entry of unknown format %s\n", debugstr_an((LPCSTR)&pEntry->signature, sizeof(DWORD)));
cache_container_unlock_index(pContainer, pHeader);
memset(pftLastModified, 0, sizeof(*pftLastModified));
return TRUE;
}
pUrlEntry = (const entry_url *)pEntry;
expired = urlcache_entry_is_expired(pUrlEntry, pftLastModified);
cache_container_unlock_index(pContainer, pHeader);
return expired;
}
/***********************************************************************
* IsUrlCacheEntryExpiredW (WININET.@)
*
* PARAMS
* url [I] Url
* dwFlags [I] Unknown
* pftLastModified [O] Last modified time
*/
BOOL WINAPI IsUrlCacheEntryExpiredW(LPCWSTR url, DWORD dwFlags, FILETIME* pftLastModified)
{
char *encoded_url;
BOOL ret;
if(!urlcache_encode_url_alloc(url, &encoded_url))
return FALSE;
ret = IsUrlCacheEntryExpiredA(encoded_url, dwFlags, pftLastModified);
free(encoded_url);
return ret;
}
/***********************************************************************
* GetDiskInfoA (WININET.@)
*/
BOOL WINAPI GetDiskInfoA(PCSTR path, PDWORD cluster_size, PDWORDLONG free, PDWORDLONG total)
{
BOOL ret;
ULARGE_INTEGER bytes_free, bytes_total;
TRACE("(%s, %p, %p, %p)\n", debugstr_a(path), cluster_size, free, total);
if (!path)
{
SetLastError(ERROR_INVALID_PARAMETER);
return FALSE;
}
if ((ret = GetDiskFreeSpaceExA(path, NULL, &bytes_total, &bytes_free)))
{
if (cluster_size) *cluster_size = 1;
if (free) *free = bytes_free.QuadPart;
if (total) *total = bytes_total.QuadPart;
}
return ret;
}
/***********************************************************************
* RegisterUrlCacheNotification (WININET.@)
*/
DWORD WINAPI RegisterUrlCacheNotification(LPVOID a, DWORD b, DWORD c, DWORD d, DWORD e, DWORD f)
{
FIXME("(%p %lx %lx %lx %lx %lx)\n", a, b, c, d, e, f);
return 0;
}
/***********************************************************************
* IncrementUrlCacheHeaderData (WININET.@)
*/
BOOL WINAPI IncrementUrlCacheHeaderData(DWORD index, LPDWORD data)
{
FIXME("(%lu, %p)\n", index, data);
return FALSE;
}
/***********************************************************************
* RunOnceUrlCache (WININET.@)
*/
DWORD WINAPI RunOnceUrlCache(HWND hwnd, HINSTANCE hinst, LPSTR cmd, int cmdshow)
{
FIXME("(%p, %p, %s, %d): stub\n", hwnd, hinst, debugstr_a(cmd), cmdshow);
return 0;
}
BOOL init_urlcache(void)
{
dll_unload_event = CreateEventW(NULL, FALSE, FALSE, NULL);
if(!dll_unload_event)
return FALSE;
free_cache_running = CreateSemaphoreW(NULL, 1, 1, NULL);
if(!free_cache_running) {
CloseHandle(dll_unload_event);
return FALSE;
}
cache_containers_init();
return TRUE;
}
void free_urlcache(void)
{
SetEvent(dll_unload_event);
WaitForSingleObject(free_cache_running, INFINITE);
ReleaseSemaphore(free_cache_running, 1, NULL);
CloseHandle(free_cache_running);
CloseHandle(dll_unload_event);
cache_containers_free();
}
/***********************************************************************
* LoadUrlCacheContent (WININET.@)
*/
BOOL WINAPI LoadUrlCacheContent(void)
{
FIXME("stub!\n");
return FALSE;
}
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