635 lines
22 KiB
C++
635 lines
22 KiB
C++
// Copyright (C) 2016 and later: Unicode, Inc. and others.
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// License & terms of use: http://www.unicode.org/copyright.html
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/*
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*******************************************************************************
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*
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* Copyright (C) 2003-2015, International Business Machines
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* Corporation and others. All Rights Reserved.
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*
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*******************************************************************************
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* file name: pkgitems.cpp
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* encoding: US-ASCII
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* tab size: 8 (not used)
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* indentation:4
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*
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* created on: 2005sep18
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* created by: Markus W. Scherer
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*
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* Companion file to package.cpp. Deals with details of ICU data item formats.
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* Used for item dependencies.
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* Contains adapted code from ucnv_bld.c (swapper code from 2003).
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*/
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#include "unicode/utypes.h"
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#include "unicode/ures.h"
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#include "unicode/putil.h"
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#include "unicode/udata.h"
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#include "cstring.h"
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#include "uinvchar.h"
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#include "ucmndata.h"
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#include "udataswp.h"
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#include "swapimpl.h"
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#include "toolutil.h"
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#include "package.h"
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#include "pkg_imp.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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/* item formats in common */
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#include "uresdata.h"
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#include "ucnv_bld.h"
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#include "ucnv_io.h"
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// general definitions ----------------------------------------------------- ***
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U_CDECL_BEGIN
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static void U_CALLCONV
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printError(void *context, const char *fmt, va_list args) {
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vfprintf((FILE *)context, fmt, args);
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}
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U_CDECL_END
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// a data item in native-platform form ------------------------------------- ***
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U_NAMESPACE_BEGIN
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class NativeItem {
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public:
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NativeItem() : pItem(NULL), pInfo(NULL), bytes(NULL), swapped(NULL), length(0) {}
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NativeItem(const Item *item, UDataSwapFn *swap) : swapped(NULL) {
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setItem(item, swap);
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}
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~NativeItem() {
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delete [] swapped;
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}
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const UDataInfo *getDataInfo() const {
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return pInfo;
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}
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const uint8_t *getBytes() const {
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return bytes;
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}
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int32_t getLength() const {
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return length;
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}
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void setItem(const Item *item, UDataSwapFn *swap) {
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pItem=item;
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int32_t infoLength, itemHeaderLength;
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UErrorCode errorCode=U_ZERO_ERROR;
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pInfo=::getDataInfo(pItem->data, pItem->length, infoLength, itemHeaderLength, &errorCode);
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if(U_FAILURE(errorCode)) {
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exit(errorCode); // should succeed because readFile() checks headers
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}
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length=pItem->length-itemHeaderLength;
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if(pInfo->isBigEndian==U_IS_BIG_ENDIAN && pInfo->charsetFamily==U_CHARSET_FAMILY) {
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bytes=pItem->data+itemHeaderLength;
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} else {
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UDataSwapper *ds=udata_openSwapper((UBool)pInfo->isBigEndian, pInfo->charsetFamily, U_IS_BIG_ENDIAN, U_CHARSET_FAMILY, &errorCode);
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if(U_FAILURE(errorCode)) {
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fprintf(stderr, "icupkg: udata_openSwapper(\"%s\") failed - %s\n",
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pItem->name, u_errorName(errorCode));
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exit(errorCode);
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}
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ds->printError=printError;
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ds->printErrorContext=stderr;
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swapped=new uint8_t[pItem->length];
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if(swapped==NULL) {
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fprintf(stderr, "icupkg: unable to allocate memory for swapping \"%s\"\n", pItem->name);
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exit(U_MEMORY_ALLOCATION_ERROR);
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}
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swap(ds, pItem->data, pItem->length, swapped, &errorCode);
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pInfo=::getDataInfo(swapped, pItem->length, infoLength, itemHeaderLength, &errorCode);
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bytes=swapped+itemHeaderLength;
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udata_closeSwapper(ds);
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}
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}
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private:
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const Item *pItem;
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const UDataInfo *pInfo;
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const uint8_t *bytes;
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uint8_t *swapped;
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int32_t length;
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};
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// check a dependency ------------------------------------------------------ ***
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/*
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* assemble the target item name from the source item name, an ID
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* and a suffix
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*/
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static void
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makeTargetName(const char *itemName, const char *id, int32_t idLength, const char *suffix,
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char *target, int32_t capacity,
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UErrorCode *pErrorCode) {
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const char *itemID;
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int32_t treeLength, suffixLength, targetLength;
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// get the item basename
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itemID=strrchr(itemName, '/');
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if(itemID!=NULL) {
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++itemID;
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} else {
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itemID=itemName;
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}
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// build the target string
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treeLength=(int32_t)(itemID-itemName);
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if(idLength<0) {
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idLength=(int32_t)strlen(id);
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}
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suffixLength=(int32_t)strlen(suffix);
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targetLength=treeLength+idLength+suffixLength;
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if(targetLength>=capacity) {
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fprintf(stderr, "icupkg/makeTargetName(%s) target item name length %ld too long\n",
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itemName, (long)targetLength);
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*pErrorCode=U_BUFFER_OVERFLOW_ERROR;
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return;
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}
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memcpy(target, itemName, treeLength);
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memcpy(target+treeLength, id, idLength);
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memcpy(target+treeLength+idLength, suffix, suffixLength+1); // +1 includes the terminating NUL
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}
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static void
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checkIDSuffix(const char *itemName, const char *id, int32_t idLength, const char *suffix,
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CheckDependency check, void *context,
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UErrorCode *pErrorCode) {
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char target[200];
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makeTargetName(itemName, id, idLength, suffix, target, (int32_t)sizeof(target), pErrorCode);
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if(U_SUCCESS(*pErrorCode)) {
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check(context, itemName, target);
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}
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}
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/* assemble the target item name from the item's parent item name */
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static void
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checkParent(const char *itemName, CheckDependency check, void *context,
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UErrorCode *pErrorCode) {
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const char *itemID, *parent, *parentLimit, *suffix;
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int32_t parentLength;
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// get the item basename
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itemID=strrchr(itemName, '/');
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if(itemID!=NULL) {
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++itemID;
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} else {
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itemID=itemName;
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}
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// get the item suffix
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suffix=strrchr(itemID, '.');
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if(suffix==NULL) {
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// empty suffix, point to the end of the string
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suffix=strrchr(itemID, 0);
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}
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// get the position of the last '_'
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for(parentLimit=suffix; parentLimit>itemID && *--parentLimit!='_';) {}
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if(parentLimit!=itemID) {
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// get the parent item name by truncating the last part of this item's name */
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parent=itemID;
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parentLength=(int32_t)(parentLimit-itemID);
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} else {
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// no '_' in the item name: the parent is the root bundle
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parent="root";
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parentLength=4;
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if((suffix-itemID)==parentLength && 0==memcmp(itemID, parent, parentLength)) {
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// the item itself is "root", which does not depend on a parent
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return;
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}
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}
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checkIDSuffix(itemName, parent, parentLength, suffix, check, context, pErrorCode);
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}
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// get dependencies from resource bundles ---------------------------------- ***
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static const UChar SLASH=0x2f;
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/*
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* Check for the alias from the string or alias resource res.
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*/
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static void
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checkAlias(const char *itemName,
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Resource res, const UChar *alias, int32_t length, UBool useResSuffix,
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CheckDependency check, void *context, UErrorCode *pErrorCode) {
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int32_t i;
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if(!uprv_isInvariantUString(alias, length)) {
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fprintf(stderr, "icupkg/ures_enumDependencies(%s res=%08x) alias string contains non-invariant characters\n",
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itemName, res);
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*pErrorCode=U_INVALID_CHAR_FOUND;
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return;
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}
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// extract the locale ID from alias strings like
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// locale_ID/key1/key2/key3
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// locale_ID
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// search for the first slash
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for(i=0; i<length && alias[i]!=SLASH; ++i) {}
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if(res_getPublicType(res)==URES_ALIAS) {
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// ignore aliases with an initial slash:
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// /ICUDATA/... and /pkgname/... go to a different package
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// /LOCALE/... are for dynamic sideways fallbacks and don't go to a fixed bundle
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if(i==0) {
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return; // initial slash ('/')
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}
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// ignore the intra-bundle path starting from the first slash ('/')
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length=i;
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} else /* URES_STRING */ {
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// the whole string should only consist of a locale ID
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if(i!=length) {
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fprintf(stderr, "icupkg/ures_enumDependencies(%s res=%08x) %%ALIAS contains a '/'\n",
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itemName, res);
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*pErrorCode=U_UNSUPPORTED_ERROR;
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return;
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}
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}
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// convert the Unicode string to char *
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char localeID[32];
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if(length>=(int32_t)sizeof(localeID)) {
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fprintf(stderr, "icupkg/ures_enumDependencies(%s res=%08x) alias locale ID length %ld too long\n",
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itemName, res, (long)length);
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*pErrorCode=U_BUFFER_OVERFLOW_ERROR;
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return;
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}
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u_UCharsToChars(alias, localeID, length);
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localeID[length]=0;
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checkIDSuffix(itemName, localeID, -1, (useResSuffix ? ".res" : ""), check, context, pErrorCode);
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}
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/*
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* Enumerate one resource item and its children and extract dependencies from
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* aliases.
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*/
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static void
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ures_enumDependencies(const char *itemName,
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const ResourceData *pResData,
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Resource res, const char *inKey, const char *parentKey, int32_t depth,
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CheckDependency check, void *context,
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Package *pkg,
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UErrorCode *pErrorCode) {
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switch(res_getPublicType(res)) {
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case URES_STRING:
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{
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UBool useResSuffix = TRUE;
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// Check for %%ALIAS
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if(depth==1 && inKey!=NULL) {
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if(0!=strcmp(inKey, "%%ALIAS")) {
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break;
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}
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}
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// Check for %%DEPENDENCY
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else if(depth==2 && parentKey!=NULL) {
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if(0!=strcmp(parentKey, "%%DEPENDENCY")) {
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break;
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}
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useResSuffix = FALSE;
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} else {
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// we ignore all other strings
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break;
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}
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int32_t length;
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const UChar *alias=res_getString(pResData, res, &length);
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checkAlias(itemName, res, alias, length, useResSuffix, check, context, pErrorCode);
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}
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break;
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case URES_ALIAS:
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{
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int32_t length;
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const UChar *alias=res_getAlias(pResData, res, &length);
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checkAlias(itemName, res, alias, length, TRUE, check, context, pErrorCode);
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}
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break;
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case URES_TABLE:
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{
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/* recurse */
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int32_t count=res_countArrayItems(pResData, res);
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for(int32_t i=0; i<count; ++i) {
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const char *itemKey;
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Resource item=res_getTableItemByIndex(pResData, res, i, &itemKey);
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ures_enumDependencies(
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itemName, pResData,
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item, itemKey,
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inKey, depth+1,
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check, context,
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pkg,
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pErrorCode);
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if(U_FAILURE(*pErrorCode)) {
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fprintf(stderr, "icupkg/ures_enumDependencies(%s table res=%08x)[%d].recurse(%s: %08x) failed\n",
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itemName, res, i, itemKey, item);
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break;
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}
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}
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}
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break;
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case URES_ARRAY:
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{
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/* recurse */
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int32_t count=res_countArrayItems(pResData, res);
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for(int32_t i=0; i<count; ++i) {
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Resource item=res_getArrayItem(pResData, res, i);
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ures_enumDependencies(
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itemName, pResData,
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item, NULL,
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inKey, depth+1,
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check, context,
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pkg,
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pErrorCode);
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if(U_FAILURE(*pErrorCode)) {
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fprintf(stderr, "icupkg/ures_enumDependencies(%s array res=%08x)[%d].recurse(%08x) failed\n",
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itemName, res, i, item);
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break;
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}
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}
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}
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break;
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default:
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break;
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}
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}
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static void
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ures_enumDependencies(const char *itemName, const UDataInfo *pInfo,
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const uint8_t *inBytes, int32_t length,
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CheckDependency check, void *context,
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Package *pkg,
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UErrorCode *pErrorCode) {
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ResourceData resData;
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res_read(&resData, pInfo, inBytes, length, pErrorCode);
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if(U_FAILURE(*pErrorCode)) {
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fprintf(stderr, "icupkg: .res format version %02x.%02x not supported, or bundle malformed\n",
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pInfo->formatVersion[0], pInfo->formatVersion[1]);
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exit(U_UNSUPPORTED_ERROR);
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}
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/*
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* if the bundle attributes are present and the nofallback flag is not set,
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* then add the parent bundle as a dependency
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*/
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if(pInfo->formatVersion[0]>1 || (pInfo->formatVersion[0]==1 && pInfo->formatVersion[1]>=1)) {
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if(!resData.noFallback) {
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/* this bundle participates in locale fallback */
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checkParent(itemName, check, context, pErrorCode);
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}
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}
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icu::NativeItem nativePool;
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if(resData.usesPoolBundle) {
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char poolName[200];
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makeTargetName(itemName, "pool", 4, ".res", poolName, (int32_t)sizeof(poolName), pErrorCode);
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if(U_FAILURE(*pErrorCode)) {
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return;
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}
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check(context, itemName, poolName);
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int32_t index=pkg->findItem(poolName);
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if(index<0) {
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// We cannot work with a bundle if its pool resource is missing.
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// check() already printed a complaint.
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return;
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}
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// TODO: Cache the native version in the Item itself.
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nativePool.setItem(pkg->getItem(index), ures_swap);
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const UDataInfo *poolInfo=nativePool.getDataInfo();
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if(poolInfo->formatVersion[0]<=1) {
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fprintf(stderr, "icupkg: %s is not a pool bundle\n", poolName);
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return;
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}
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const int32_t *poolRoot=(const int32_t *)nativePool.getBytes();
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const int32_t *poolIndexes=poolRoot+1;
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int32_t poolIndexLength=poolIndexes[URES_INDEX_LENGTH]&0xff;
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if(!(poolIndexLength>URES_INDEX_POOL_CHECKSUM &&
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(poolIndexes[URES_INDEX_ATTRIBUTES]&URES_ATT_IS_POOL_BUNDLE))
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) {
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fprintf(stderr, "icupkg: %s is not a pool bundle\n", poolName);
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return;
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}
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if(resData.pRoot[1+URES_INDEX_POOL_CHECKSUM]==poolIndexes[URES_INDEX_POOL_CHECKSUM]) {
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resData.poolBundleKeys=(const char *)(poolIndexes+poolIndexLength);
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resData.poolBundleStrings=(const uint16_t *)(poolRoot+poolIndexes[URES_INDEX_KEYS_TOP]);
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} else {
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fprintf(stderr, "icupkg: %s has mismatched checksum for %s\n", poolName, itemName);
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return;
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}
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}
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ures_enumDependencies(
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itemName, &resData,
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resData.rootRes, NULL, NULL, 0,
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check, context,
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pkg,
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pErrorCode);
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}
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// get dependencies from conversion tables --------------------------------- ***
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/* code adapted from ucnv_swap() */
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static void
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ucnv_enumDependencies(const UDataSwapper *ds,
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const char *itemName, const UDataInfo *pInfo,
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const uint8_t *inBytes, int32_t length,
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CheckDependency check, void *context,
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UErrorCode *pErrorCode) {
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uint32_t staticDataSize;
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const UConverterStaticData *inStaticData;
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const _MBCSHeader *inMBCSHeader;
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uint8_t outputType;
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/* check format version */
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if(!(
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pInfo->formatVersion[0]==6 &&
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pInfo->formatVersion[1]>=2
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)) {
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fprintf(stderr, "icupkg/ucnv_enumDependencies(): .cnv format version %02x.%02x not supported\n",
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pInfo->formatVersion[0], pInfo->formatVersion[1]);
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exit(U_UNSUPPORTED_ERROR);
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}
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/* read the initial UConverterStaticData structure after the UDataInfo header */
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inStaticData=(const UConverterStaticData *)inBytes;
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if( length<(int32_t)sizeof(UConverterStaticData) ||
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(uint32_t)length<(staticDataSize=ds->readUInt32(inStaticData->structSize))
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) {
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udata_printError(ds, "icupkg/ucnv_enumDependencies(): too few bytes (%d after header) for an ICU .cnv conversion table\n",
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length);
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*pErrorCode=U_INDEX_OUTOFBOUNDS_ERROR;
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return;
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}
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inBytes+=staticDataSize;
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length-=(int32_t)staticDataSize;
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/* check for supported conversionType values */
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if(inStaticData->conversionType==UCNV_MBCS) {
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/* MBCS data */
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uint32_t mbcsHeaderLength, mbcsHeaderFlags, mbcsHeaderOptions;
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int32_t extOffset;
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inMBCSHeader=(const _MBCSHeader *)inBytes;
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if(length<(int32_t)sizeof(_MBCSHeader)) {
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udata_printError(ds, "icupkg/ucnv_enumDependencies(): too few bytes (%d after headers) for an ICU MBCS .cnv conversion table\n",
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length);
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*pErrorCode=U_INDEX_OUTOFBOUNDS_ERROR;
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return;
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}
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if(inMBCSHeader->version[0]==4 && inMBCSHeader->version[1]>=1) {
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mbcsHeaderLength=MBCS_HEADER_V4_LENGTH;
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} else if(inMBCSHeader->version[0]==5 && inMBCSHeader->version[1]>=3 &&
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((mbcsHeaderOptions=ds->readUInt32(inMBCSHeader->options))&
|
|
MBCS_OPT_UNKNOWN_INCOMPATIBLE_MASK)==0
|
|
) {
|
|
mbcsHeaderLength=mbcsHeaderOptions&MBCS_OPT_LENGTH_MASK;
|
|
} else {
|
|
udata_printError(ds, "icupkg/ucnv_enumDependencies(): unsupported _MBCSHeader.version %d.%d\n",
|
|
inMBCSHeader->version[0], inMBCSHeader->version[1]);
|
|
*pErrorCode=U_UNSUPPORTED_ERROR;
|
|
return;
|
|
}
|
|
|
|
mbcsHeaderFlags=ds->readUInt32(inMBCSHeader->flags);
|
|
extOffset=(int32_t)(mbcsHeaderFlags>>8);
|
|
outputType=(uint8_t)mbcsHeaderFlags;
|
|
|
|
if(outputType==MBCS_OUTPUT_EXT_ONLY) {
|
|
/*
|
|
* extension-only file,
|
|
* contains a base name instead of normal base table data
|
|
*/
|
|
char baseName[32];
|
|
int32_t baseNameLength;
|
|
|
|
/* there is extension data after the base data, see ucnv_ext.h */
|
|
if(length<(extOffset+UCNV_EXT_INDEXES_MIN_LENGTH*4)) {
|
|
udata_printError(ds, "icupkg/ucnv_enumDependencies(): too few bytes (%d after headers) for an ICU MBCS .cnv conversion table with extension data\n",
|
|
length);
|
|
*pErrorCode=U_INDEX_OUTOFBOUNDS_ERROR;
|
|
return;
|
|
}
|
|
|
|
/* swap the base name, between the header and the extension data */
|
|
const char *inBaseName=(const char *)inBytes+mbcsHeaderLength*4;
|
|
baseNameLength=(int32_t)strlen(inBaseName);
|
|
if(baseNameLength>=(int32_t)sizeof(baseName)) {
|
|
udata_printError(ds, "icupkg/ucnv_enumDependencies(%s): base name length %ld too long\n",
|
|
itemName, baseNameLength);
|
|
*pErrorCode=U_UNSUPPORTED_ERROR;
|
|
return;
|
|
}
|
|
ds->swapInvChars(ds, inBaseName, baseNameLength+1, baseName, pErrorCode);
|
|
|
|
checkIDSuffix(itemName, baseName, -1, ".cnv", check, context, pErrorCode);
|
|
}
|
|
}
|
|
}
|
|
|
|
// ICU data formats -------------------------------------------------------- ***
|
|
|
|
static const struct {
|
|
uint8_t dataFormat[4];
|
|
} dataFormats[]={
|
|
{ { 0x52, 0x65, 0x73, 0x42 } }, /* dataFormat="ResB" */
|
|
{ { 0x63, 0x6e, 0x76, 0x74 } }, /* dataFormat="cnvt" */
|
|
{ { 0x43, 0x76, 0x41, 0x6c } } /* dataFormat="CvAl" */
|
|
};
|
|
|
|
enum {
|
|
FMT_RES,
|
|
FMT_CNV,
|
|
FMT_ALIAS,
|
|
FMT_COUNT
|
|
};
|
|
|
|
static int32_t
|
|
getDataFormat(const uint8_t dataFormat[4]) {
|
|
int32_t i;
|
|
|
|
for(i=0; i<FMT_COUNT; ++i) {
|
|
if(0==memcmp(dataFormats[i].dataFormat, dataFormat, 4)) {
|
|
return i;
|
|
}
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
// enumerate dependencies of a package item -------------------------------- ***
|
|
|
|
void
|
|
Package::enumDependencies(Item *pItem, void *context, CheckDependency check) {
|
|
int32_t infoLength, itemHeaderLength;
|
|
UErrorCode errorCode=U_ZERO_ERROR;
|
|
const UDataInfo *pInfo=getDataInfo(pItem->data, pItem->length, infoLength, itemHeaderLength, &errorCode);
|
|
if(U_FAILURE(errorCode)) {
|
|
return; // should not occur because readFile() checks headers
|
|
}
|
|
|
|
// find the data format and call the corresponding function, if any
|
|
int32_t format=getDataFormat(pInfo->dataFormat);
|
|
if(format>=0) {
|
|
switch(format) {
|
|
case FMT_RES:
|
|
{
|
|
/*
|
|
* Swap the resource bundle (if necessary) so that we can use
|
|
* the normal runtime uresdata.c code to read it.
|
|
* We do not want to duplicate that code, especially not together with on-the-fly swapping.
|
|
*/
|
|
NativeItem nrb(pItem, ures_swap);
|
|
ures_enumDependencies(pItem->name, nrb.getDataInfo(), nrb.getBytes(), nrb.getLength(), check, context, this, &errorCode);
|
|
break;
|
|
}
|
|
case FMT_CNV:
|
|
{
|
|
// TODO: share/cache swappers
|
|
UDataSwapper *ds=udata_openSwapper(
|
|
(UBool)pInfo->isBigEndian, pInfo->charsetFamily,
|
|
U_IS_BIG_ENDIAN, U_CHARSET_FAMILY,
|
|
&errorCode);
|
|
if(U_FAILURE(errorCode)) {
|
|
fprintf(stderr, "icupkg: udata_openSwapper(\"%s\") failed - %s\n",
|
|
pItem->name, u_errorName(errorCode));
|
|
exit(errorCode);
|
|
}
|
|
|
|
ds->printError=printError;
|
|
ds->printErrorContext=stderr;
|
|
|
|
const uint8_t *inBytes=pItem->data+itemHeaderLength;
|
|
int32_t length=pItem->length-itemHeaderLength;
|
|
|
|
ucnv_enumDependencies(ds, pItem->name, pInfo, inBytes, length, check, context, &errorCode);
|
|
udata_closeSwapper(ds);
|
|
break;
|
|
}
|
|
default:
|
|
break;
|
|
}
|
|
|
|
if(U_FAILURE(errorCode)) {
|
|
exit(errorCode);
|
|
}
|
|
}
|
|
}
|
|
|
|
U_NAMESPACE_END
|