Exemplo n.º 1
0
nsresult
nsJARInputThunk::Init()
{
    nsresult rv;
    if (ENTRY_IS_DIRECTORY(mJarEntry)) {
        // A directory stream also needs the Spec of the FullJarURI
        // because is included in the stream data itself.

        NS_ENSURE_STATE(!mJarDirSpec.IsEmpty());

        rv = mJarReader->GetInputStreamWithSpec(mJarDirSpec,
                                                mJarEntry,
                                                getter_AddRefs(mJarStream));
    }
    else {
        rv = mJarReader->GetInputStream(mJarEntry,
                                        getter_AddRefs(mJarStream));
    }
    if (NS_FAILED(rv)) {
        // convert to the proper result if the entry wasn't found
        // so that error pages work
        if (rv == NS_ERROR_FILE_TARGET_DOES_NOT_EXIST)
            rv = NS_ERROR_FILE_NOT_FOUND;
        return rv;
    }

    // ask the JarStream for the content length
    uint64_t avail;
    rv = mJarStream->Available((uint64_t *) &avail);
    if (NS_FAILED(rv)) return rv;

    mContentLength = avail < INT64_MAX ? (int64_t) avail : -1;

    return NS_OK;
}
Exemplo n.º 2
0
nsresult
nsJARInputThunk::EnsureJarStream()
{
    if (mJarStream)
        return NS_OK;

    nsresult rv;
    if (mJarCache)
        rv = mJarCache->GetZip(mJarFile, getter_AddRefs(mJarReader));
    else {
        // create an uncached jar reader
        mJarReader = do_CreateInstance(kZipReaderCID, &rv);
        if (NS_FAILED(rv)) return rv;

        rv = mJarReader->Open(mJarFile);
    }
    if (NS_FAILED(rv)) return rv;

    if (ENTRY_IS_DIRECTORY(mJarEntry)) {
        // A directory stream also needs the Spec of the FullJarURI
        // because is included in the stream data itself.

        NS_ENSURE_STATE(!mJarDirSpec.IsEmpty());

        rv = mJarReader->GetInputStreamWithSpec(mJarDirSpec,
                                                mJarEntry.get(),
                                                getter_AddRefs(mJarStream));
    }
    else {
        rv = mJarReader->GetInputStream(mJarEntry.get(),
                                        getter_AddRefs(mJarStream));
    }
    if (NS_FAILED(rv)) {
        // convert to the proper result if the entry wasn't found
        // so that error pages work
        if (rv == NS_ERROR_FILE_TARGET_DOES_NOT_EXIST)
            rv = NS_ERROR_FILE_NOT_FOUND;
        return rv;
    }

    // ask the JarStream for the content length
    // XXX want a 64-bit value from nsIInputStream::Available()
    PRUint32 contentLength;
    rv = mJarStream->Available(&contentLength);
    if (NS_FAILED(rv)) return rv;
    mContentLength = contentLength;

    return NS_OK;
}