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Use modified etags in mod_compress (fixes #1800) 

git-svn-id: svn://svn.lighttpd.net/lighttpd/branches/lighttpd-1.4.x@2386 152afb58-edef-0310-8abb-c4023f1b3aa9
svn/tags/lighttpd-1.4.21
Stefan Bühler 2009-02-04 17:30:18 +00:00
parent cb91487c8d
commit f0bbc7468c
2 changed files with 35 additions and 24 deletions
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1
NEWS
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@ -32,6 +32,7 @@ NEWS
* Use/enforce sane max-connection values (fixes #1803)
* Allow mod_compress to return 304 (Not Modified); compress ignores the static-file.etags option.(fixes #1884)
* Add option to ignore the "Expect: 100-continue" header instead of returning 417 Expectation failed (closes #1017)
* Use modified etags in mod_compress (fixes #1800)
- 1.4.20 - 2008-09-30

58
src/mod_compress.c
View File

@ -726,16 +726,6 @@ PHYSICALPATH_FUNC(mod_compress_physical) {
/* mimetype found */
data_string *ds;
etag_mutate(con->physical.etag, sce->etag);
mtime = strftime_cache_get(srv, sce->st.st_mtime);
if (HANDLER_FINISHED == http_response_handle_cachable(srv, con, mtime)) {
response_header_overwrite(srv, con, CONST_STR_LEN("Content-Type"), CONST_BUF_LEN(sce->content_type));
response_header_overwrite(srv, con, CONST_STR_LEN("Last-Modified"), CONST_BUF_LEN(mtime));
response_header_overwrite(srv, con, CONST_STR_LEN("ETag"), CONST_BUF_LEN(con->physical.etag));
return HANDLER_FINISHED;
}
/* the response might change according to Accept-Encoding */
response_header_insert(srv, con, CONST_STR_LEN("Vary"), CONST_STR_LEN("Accept-Encoding"));
@ -766,6 +756,17 @@ PHYSICALPATH_FUNC(mod_compress_physical) {
const char *compression_name = NULL;
int compression_type = 0;
mtime = strftime_cache_get(srv, sce->st.st_mtime);
/* try matching original etag of uncompressed version */
etag_mutate(con->physical.etag, sce->etag);
if (HANDLER_FINISHED == http_response_handle_cachable(srv, con, mtime)) {
response_header_overwrite(srv, con, CONST_STR_LEN("Content-Type"), CONST_BUF_LEN(sce->content_type));
response_header_overwrite(srv, con, CONST_STR_LEN("Last-Modified"), CONST_BUF_LEN(mtime));
response_header_overwrite(srv, con, CONST_STR_LEN("ETag"), CONST_BUF_LEN(con->physical.etag));
return HANDLER_FINISHED;
}
/* select best matching encoding */
if (matched_encodings & HTTP_ACCEPT_ENCODING_BZIP2) {
compression_type = HTTP_ACCEPT_ENCODING_BZIP2;
@ -778,25 +779,34 @@ PHYSICALPATH_FUNC(mod_compress_physical) {
compression_name = dflt_deflate;
}
/* deflate it */
if (p->conf.compress_cache_dir->used) {
if (0 == deflate_file_to_file(srv, con, p,
con->physical.path, sce, compression_type)) {
response_header_overwrite(srv, con, CONST_STR_LEN("Content-Encoding"), compression_name, strlen(compression_name));
response_header_overwrite(srv, con, CONST_STR_LEN("Last-Modified"), CONST_BUF_LEN(mtime));
response_header_overwrite(srv, con, CONST_STR_LEN("ETag"), CONST_BUF_LEN(con->physical.etag));
response_header_overwrite(srv, con, CONST_STR_LEN("Content-Type"), CONST_BUF_LEN(sce->content_type));
return HANDLER_GO_ON;
}
} else if (0 == deflate_file_to_buffer(srv, con, p,
con->physical.path, sce, compression_type)) {
/* try matching etag of compressed version */
buffer_copy_string_buffer(srv->tmp_buf, sce->etag);
buffer_append_string_len(srv->tmp_buf, CONST_STR_LEN("-"));
buffer_append_string(srv->tmp_buf, compression_name);
etag_mutate(con->physical.etag, srv->tmp_buf);
if (HANDLER_FINISHED == http_response_handle_cachable(srv, con, mtime)) {
response_header_overwrite(srv, con, CONST_STR_LEN("Content-Encoding"), compression_name, strlen(compression_name));
response_header_overwrite(srv, con, CONST_STR_LEN("Content-Type"), CONST_BUF_LEN(sce->content_type));
response_header_overwrite(srv, con, CONST_STR_LEN("Last-Modified"), CONST_BUF_LEN(mtime));
response_header_overwrite(srv, con, CONST_STR_LEN("ETag"), CONST_BUF_LEN(con->physical.etag));
response_header_overwrite(srv, con, CONST_STR_LEN("Content-Type"), CONST_BUF_LEN(sce->content_type));
return HANDLER_FINISHED;
}
break;
/* deflate it */
if (p->conf.compress_cache_dir->used) {
if (0 != deflate_file_to_file(srv, con, p, con->physical.path, sce, compression_type))
return HANDLER_GO_ON;
} else {
if (0 != deflate_file_to_buffer(srv, con, p, con->physical.path, sce, compression_type))
return HANDLER_GO_ON;
}
response_header_overwrite(srv, con, CONST_STR_LEN("Content-Encoding"), compression_name, strlen(compression_name));
response_header_overwrite(srv, con, CONST_STR_LEN("Last-Modified"), CONST_BUF_LEN(mtime));
response_header_overwrite(srv, con, CONST_STR_LEN("ETag"), CONST_BUF_LEN(con->physical.etag));
response_header_overwrite(srv, con, CONST_STR_LEN("Content-Type"), CONST_BUF_LEN(sce->content_type));
/* let mod_staticfile handle the cached compressed files, physical path was modified */
return p->conf.compress_cache_dir->used ? HANDLER_GO_ON : HANDLER_FINISHED;
}
}
}