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Image filter: large image handling.

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If Content-Length header is not set, and the image size is larger than the
buffer size, client will hang until a timeout occurs.

Now NGX_HTTP_UNSUPPORTED_MEDIA_TYPE is returned immediately.

diff -r d1403de41631 -r 4fae04f332b4
src/http/modules/ngx_http_image_filter_module.c
This commit is contained in:
Lanshun Zhou 2013-08-28 00:19:07 +08:00
parent 51f7761710
commit be23dcb1a1
1 changed files with 6 additions and 1 deletions
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7
src/http/modules/ngx_http_image_filter_module.c
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@ -478,7 +478,12 @@ ngx_http_image_read(ngx_http_request_t *r, ngx_chain_t *in)
"image buf: %uz", size);
rest = ctx->image + ctx->length - p;
size = (rest < size) ? rest : size;
if (size > rest) {
ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
"image filter: too big response");
return NGX_ERROR;
}
p = ngx_cpymem(p, b->pos, size);
b->pos += size;