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v/vlib/http/backend_nix.v

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// Copyright (c) 2019 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
// On linux, prefer a localy build openssl, because it is
// much more likely for it to be newer, than the system
// openssl from libssl-dev. If there is no local openssl,
// the next flag is harmless, since it will still use the
// (older) system openssl.
#flag linux -I/usr/local/include/openssl -L/usr/local/lib
#flag windows -I @VROOT/thirdparty/openssl/include
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#flag darwin -I @VROOT/thirdparty/openssl/include
#flag -l ssl -l crypto
// MacPorts
#flag darwin -L/opt/local/lib
// Brew
#flag darwin -L/usr/local/opt/openssl/lib
#include <openssl/ssl.h>
struct C.SSL {
}
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fn init_module() {
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$if mac {
C.SSL_library_init()
}
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$if linux {
C.SSL_library_init()
}
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//C.SSL_load_error_strings()
//C.OPENSSL_config(0)
}
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fn (req &Request) ssl_do(port int, method, host_name, path string) Response {
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//ssl_method := C.SSLv23_method()
ssl_method := C.TLSv1_2_method()
if isnil(method) {
}
ctx := C.SSL_CTX_new(ssl_method)
if isnil(ctx) {
}
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, 'random-org-chain.pem', 0)
if res != 1 {
}
web := C.BIO_new_ssl_connect(ctx)
if isnil(ctx) {
}
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addr := host_name + ':' + port.str()
res = C.BIO_set_conn_hostname(web, addr.str)
if res != 1 {
}
ssl := &C.SSL{!}
C.BIO_get_ssl(web, &ssl)
if isnil(ssl) {
}
preferred_ciphers := 'HIGH:!aNULL:!kRSA:!PSK:!SRP:!MD5:!RC4'
res = C.SSL_set_cipher_list(ssl, preferred_ciphers.str)
if res != 1 {
}
res = C.SSL_set_tlsext_host_name(ssl, host_name.str)
res = C.BIO_do_connect(web)
res = C.BIO_do_handshake(web)
cert := C.SSL_get_peer_certificate(ssl)
res = C.SSL_get_verify_result(ssl)
///////
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s := req.build_request_headers(method, host_name, path)
C.BIO_puts(web, s.str)
mut sb := strings.new_builder(100)
for {
buff := [1536]byte
len := int(C.BIO_read(web, buff, 1536) )
if len > 0 {
sb.write(tos(buff, len))
}
else {
break
}
}
if !isnil(web) {
C.BIO_free_all(web)
}
if !isnil(ctx) {
C.SSL_CTX_free(ctx)
}
return parse_response(sb.str())
}