oss/RomPatcher.js
oss/RomPatcher.js
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refactor (bps): added BPS.calculateFileChecksum

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This commit is contained in:
Marc Robledo 2024-08-25 19:59:59 +02:00
parent b2f1b8d57e
commit 5e248e2565
2 changed files with 11 additions and 10 deletions
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9
rom-patcher-js/modules/RomPatcher.format.bps.js
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@ -26,6 +26,10 @@ BPS.prototype.toString=function(){
s+='\n#Actions: '+this.actions.length;
return s
}
BPS.prototype.calculateFileChecksum = function () {
var patchFile = this.export();
return patchFile.hashCRC32(0, patchFile.fileSize - 4);
}
BPS.prototype.validateSource=function(romFile,headerSize){return this.sourceChecksum===romFile.hashCRC32(headerSize)}
BPS.prototype.getValidationInfo=function(){
return {
@ -121,7 +125,7 @@ BPS.fromFile=function(file){
patch.targetChecksum=file.readU32();
patch.patchChecksum=file.readU32();
if(patch.patchChecksum!==file.hashCRC32(0, file.fileSize - 4)){
if (patch.patchChecksum !== patch.calculateFileChecksum()) {
throw new Error('Patch checksum mismatch');
}
@ -240,8 +244,7 @@ BPS.buildFromRoms=function(original, modified, deltaMode){
patch.sourceChecksum=original.hashCRC32();
patch.targetChecksum=modified.hashCRC32();
var patchFile=patch.export();
patch.patchChecksum=patchFile.hashCRC32(0, patchFile.fileSize - 4);
patch.patchChecksum = patch.calculateFileChecksum();
return patch;
}