Here is my Apache1-code for deflating. Maybe it helps you
static int
gzip_filter(request_rec *r, char *src, unsigned slen)
{
char *dst;
z_stream zstr;
unsigned dlen;
zstr.zalloc = gzip_alloc;
zstr.zfree = gzip_free;
zstr.opaque = r->pool;
zstr.next_in = src;
zstr.avail_in = slen;
/* add 16 to MAX_WBITS to enforce gzip format */
if (Z_OK != deflateInit2(&zstr, Z_DEFAULT_COMPRESSION, Z_DEFLATED,
MAX_WBITS + 16, MAX_MEM_LEVEL, Z_DEFAULT_STRATEGY)) {
ap_log_rerror(APLOG_MARK, APLOG_ERR, r,
"deflateInit2() for gzip-format failed: %s", zstr.msg);
return HTTP_SERVICE_UNAVAILABLE;
}
dlen = deflateBound(&zstr, slen);
/* allocate 12 more bytes as workaround for zlib version <= 1.2.3 */
#if ZLIB_VERNUM <= 0x1230
dlen += 12;
#endif
dst = ap_palloc(r->pool, dlen);
zstr.next_out = dst;
zstr.avail_out = dlen;
if (Z_STREAM_END != deflate(&zstr, Z_FINISH)) {
ap_log_rerror(APLOG_MARK, APLOG_ERR, r,
"deflate() failed: %s", zstr.msg);
return HTTP_SERVICE_UNAVAILABLE;
}
ap_set_content_length(r, zstr.total_out);
ap_table_setn(r->headers_out, "Content-Encoding", "gzip");
ap_send_http_header(r);
if (ap_rwrite(dst, zstr.total_out, r) != zstr.total_out)
ap_log_rerror(APLOG_MARK, APLOG_ERR, r,
"ap_rwrite of response data (%u bytes) failed", dlen);
if (Z_OK != deflateEnd(&zstr))
ap_log_rerror(APLOG_MARK, APLOG_ERR, r,
"deflateEnd() failed: %s", zstr.msg);
return OK;
}
On 2/1/07, Sai Jai Ganesh Gurubaran <[EMAIL PROTECTED]> wrote:
More information:
Apache (2.0.59) is working as a forward proxy on Linux.
We have developed an output filter that gathers the response
data on to a local buffer for further processing.
It is working fine.
The issue we have is that some time the data comes in a compressed
format.
Is there any way to inflate the content within the filter (stored in the
local buffer only) so that our processing goes on smooth?
(The original content is no way to be modified)
--
http://preferans.de
