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/*
*
* Copyright 2016, Google Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
#include "src/core/ext/client_channel/http_proxy.h"
#include <stdbool.h>
#include <string.h>
#include <grpc/support/alloc.h>
#include <grpc/support/log.h>
#include <grpc/support/string_util.h>
#include "src/core/ext/client_channel/uri_parser.h"
#include "src/core/lib/support/env.h"
char* grpc_get_http_proxy_server() {
char* uri_str = gpr_getenv("http_proxy");
if (uri_str == NULL) return NULL;
grpc_uri* uri = grpc_uri_parse(uri_str, false /* suppress_errors */);
char* proxy_name = NULL;
if (uri == NULL || uri->authority == NULL) {
gpr_log(GPR_ERROR, "cannot parse value of 'http_proxy' env var");
goto done;
}
if (strcmp(uri->scheme, "http") != 0) {
gpr_log(GPR_ERROR, "'%s' scheme not supported in proxy URI", uri->scheme);
goto done;
}
if (strchr(uri->authority, '@') != NULL) {
gpr_log(GPR_ERROR, "userinfo not supported in proxy URI");
goto done;
}
proxy_name = gpr_strdup(uri->authority);
done:
gpr_free(uri_str);
grpc_uri_destroy(uri);
return proxy_name;
}
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