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// Copyright (c) 2019-2021 Alexander Medvednikov. All rights reserved.
// Use of this source code is governed by an MIT license
// that can be found in the LICENSE file.
module http
import strings
import net.openssl
const (
is_used = openssl.is_used
)
fn (req &Request) ssl_do(port int, method Method, host_name string, path string) ?Response {
// ssl_method := C.SSLv23_method()
ctx := C.SSL_CTX_new(C.TLS_method())
C.SSL_CTX_set_verify_depth(ctx, 4)
flags := C.SSL_OP_NO_SSLv2 | C.SSL_OP_NO_SSLv3 | C.SSL_OP_NO_COMPRESSION
C.SSL_CTX_set_options(ctx, flags)
mut res := C.SSL_CTX_load_verify_locations(ctx, c'random-org-chain.pem', 0)
web := C.BIO_new_ssl_connect(ctx)
addr := host_name + ':' + port.str()
res = C.BIO_set_conn_hostname(web, addr.str)
ssl := &openssl.SSL(0)
C.BIO_get_ssl(web, &ssl)
preferred_ciphers := 'HIGH:!aNULL:!kRSA:!PSK:!SRP:!MD5:!RC4'
res = C.SSL_set_cipher_list(voidptr(ssl), &char(preferred_ciphers.str))
if res != 1 {
println('http: openssl: cipher failed')
}
res = C.SSL_set_tlsext_host_name(voidptr(ssl), host_name.str)
res = C.BIO_do_connect(web)
if res != 1 {
return error('cannot connect the endpoint')
}
res = C.BIO_do_handshake(web)
C.SSL_get_peer_certificate(voidptr(ssl))
res = C.SSL_get_verify_result(voidptr(ssl))
// /////
req_headers := req.build_request_headers(method, host_name, path)
$if trace_http_request ? {
eprintln('> $req_headers')
}
// println(req_headers)
C.BIO_puts(web, &char(req_headers.str))
mut content := strings.new_builder(100)
mut buff := [bufsize]byte{}
bp := unsafe { &buff[0] }
mut readcounter := 0
for {
readcounter++
len := unsafe { C.BIO_read(web, bp, bufsize) }
if len <= 0 {
break
}
$if debug_http ? {
eprintln('ssl_do, read ${readcounter:4d} | len: $len')
eprintln('-'.repeat(20))
eprintln(unsafe { tos(bp, len) })
eprintln('-'.repeat(20))
}
unsafe { content.write_ptr(bp, len) }
}
if web != 0 {
C.BIO_free_all(web)
}
if ctx != 0 {
C.SSL_CTX_free(ctx)
}
response_text := content.str()
$if trace_http_response ? {
eprintln('< $response_text')
}
return parse_response(response_text)
}
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