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/* SPDX-License-Identifier: Apache-2.0 */
/*
* Copyright (C) Andrew Clayton
* Copyright (C) Timo Stark
* Copyright (C) F5, Inc.
*/
use unit_wasm::rusty::*;
use std::ptr::null_mut;
static mut CTX: luw_ctx_t = UWR_CTX_INITIALIZER();
static mut TOTAL_RESPONSE_SENT: usize = 0;
// Buffer of some size to store the copy of the request
static mut REQUEST_BUF: *mut u8 = null_mut();
#[no_mangle]
pub extern "C" fn uwr_response_end_handler() {
unsafe {
TOTAL_RESPONSE_SENT = 0;
}
}
#[no_mangle]
pub extern "C" fn uwr_request_end_handler() {
unsafe {
if REQUEST_BUF.is_null() {
return;
}
uwr_free(REQUEST_BUF);
REQUEST_BUF = null_mut();
}
}
pub fn upload_reflector(ctx: *mut luw_ctx_t) -> i32 {
let write_bytes: usize;
// Send headers
if unsafe { TOTAL_RESPONSE_SENT == 0 } {
let defct = "application/octet-stream";
let mut ct = uwr_http_hdr_get_value(ctx, "Content-Type");
if ct.is_empty() {
ct = defct;
}
uwr_http_init_headers(ctx, 2, 0);
uwr_http_add_header(ctx, 0, "Content-Type", ct);
uwr_http_add_header(
ctx,
1,
"Content-Length",
&format!("{}", uwr_get_http_content_len(ctx)),
);
uwr_http_send_headers(ctx);
}
unsafe {
write_bytes = uwr_mem_fill_buf_from_req(ctx, TOTAL_RESPONSE_SENT);
TOTAL_RESPONSE_SENT += write_bytes;
}
uwr_http_send_response(ctx);
if unsafe { TOTAL_RESPONSE_SENT == uwr_get_http_content_len(ctx) } {
// Tell Unit no more data to send
uwr_http_response_end();
}
return 0;
}
#[no_mangle]
pub extern "C" fn uwr_request_handler(addr: *mut u8) -> i32 {
let ctx: *mut luw_ctx_t = unsafe { &mut CTX };
if unsafe { REQUEST_BUF.is_null() } {
uwr_init_ctx(ctx, addr, 0 /* Response offset */);
/*
* Take a copy of the request and use that, we do this
* in APPEND mode so we can build up request_buf from
* multiple requests.
*
* Just allocate memory for the total amount of data we
* expect to get, this includes the request structure
* itself as well as any body content.
*/
uwr_set_req_buf(
ctx,
unsafe { &mut REQUEST_BUF },
LUW_SRB_APPEND | LUW_SRB_ALLOC | LUW_SRB_FULL_SIZE,
);
} else {
uwr_req_buf_append(ctx, addr);
}
upload_reflector(ctx);
return 0;
}
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