/* ====================================================================
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
* ====================================================================
*/
#include <stdlib.h>
#include <apr.h>
#include <apr_uri.h>
#include <apr_strings.h>
#include <apr_atomic.h>
#include <apr_base64.h>
#include <apr_getopt.h>
#include <apr_version.h>
#include "serf.h"
typedef struct {
int count;
int using_ssl;
serf_ssl_context_t *ssl_ctx;
serf_bucket_alloc_t *bkt_alloc;
} app_baton_t;
typedef struct {
#if APR_MAJOR_VERSION > 0
apr_uint32_t requests_outstanding;
#else
apr_atomic_t requests_outstanding;
#endif
int print_headers;
serf_response_acceptor_t acceptor;
app_baton_t *acceptor_baton;
serf_response_handler_t handler;
const char *host;
const char *method;
const char *path;
const char *req_body_path;
const char *authn;
} handler_baton_t;
/* Kludges for APR 0.9 support. */
#if APR_MAJOR_VERSION == 0
#define apr_atomic_inc32 apr_atomic_inc
#define apr_atomic_dec32 apr_atomic_dec
#define apr_atomic_read32 apr_atomic_read
#endif
static void closed_connection(serf_connection_t *conn,
void *closed_baton,
apr_status_t why,
apr_pool_t *pool)
{
if (why) {
abort();
}
}
static apr_status_t ignore_all_cert_errors(void *data, int failures,
const serf_ssl_certificate_t *cert)
{
/* In a real application, you would normally would not want to do this */
return APR_SUCCESS;
}
static apr_status_t conn_setup(apr_socket_t *skt,
serf_bucket_t **input_bkt,
serf_bucket_t **output_bkt,
void *setup_baton,
apr_pool_t *pool)
{
serf_bucket_t *c;
app_baton_t *ctx = setup_baton;
c = serf_bucket_socket_create(skt, ctx->bkt_alloc);
if (ctx->using_ssl) {
c = serf_bucket_ssl_decrypt_create(c, ctx->ssl_ctx, ctx->bkt_alloc);
if (!ctx->ssl_ctx) {
ctx->ssl_ctx = serf_bucket_ssl_decrypt_context_get(c);
}
serf_ssl_server_cert_callback_set(ctx->ssl_ctx, ignore_all_cert_errors, NULL);
*output_bkt = serf_bucket_ssl_encrypt_create(*output_bkt, ctx->ssl_ctx,
ctx->bkt_alloc);
}
*input_bkt = c;
return APR_SUCCESS;
}
static serf_bucket_t* accept_response(serf_request_t *request,
serf_bucket_t *stream,
void *acceptor_baton,
apr_pool_t *pool)
{
serf_bucket_t *c;
serf_bucket_alloc_t *bkt_alloc;
/* get the per-request bucket allocator */
bkt_alloc = serf_request_get_alloc(request);
/* Create a barrier so the response doesn't eat us! */
c = serf_bucket_barrier_create(stream, bkt_alloc);
return serf_bucket_response_create(c, bkt_alloc);
}
static serf_bucket_t* accept_bwtp(serf_request_t *request,
serf_bucket_t *stream,
void *acceptor_baton,
apr_pool_t *pool)
{
serf_bucket_t *c;
app_baton_t *app_ctx = acceptor_baton;
/* Create a barrier so the response doesn't eat us! */
c = serf_bucket_barrier_create(stream, app_ctx->bkt_alloc);
return serf_bucket_bwtp_incoming_frame_create(c, app_ctx->bkt_alloc);
}
/* fwd declare */
static apr_status_t handle_bwtp_upgrade(serf_request_t *request,
serf_bucket_t *response,
void *handler_baton,
apr_pool_t *pool);
static apr_status_t setup_request(serf_request_t *request,
void *setup_baton,
serf_bucket_t **req_bkt,
serf_response_acceptor_t *acceptor,
void **acceptor_baton,
serf_response_handler_t *handler,
void **handler_baton,
apr_pool_t *pool)
{
handler_baton_t *ctx = setup_baton;
serf_bucket_t *hdrs_bkt;
serf_bucket_t *body_bkt;
if (ctx->req_body_path) {
apr_file_t *file;
apr_status_t status;
status = apr_file_open(&file, ctx->req_body_path, APR_READ,
APR_OS_DEFAULT, pool);
if (status) {
printf("Error opening file (%s)\n", ctx->req_body_path);
return status;
}
body_bkt = serf_bucket_file_create(file,
serf_request_get_alloc(request));
}
else {
body_bkt = NULL;
}
/*
*req_bkt = serf_bucket_bwtp_message_create(0, body_bkt,
serf_request_get_alloc(request));
*/
*req_bkt = serf_bucket_bwtp_header_create(0, "MESSAGE",
serf_request_get_alloc(request));
hdrs_bkt = serf_bucket_bwtp_frame_get_headers(*req_bkt);
/* FIXME: Shouldn't we be able to figure out the host ourselves? */
serf_bucket_headers_setn(hdrs_bkt, "Host", ctx->host);
serf_bucket_headers_setn(hdrs_bkt, "User-Agent",
"Serf/" SERF_VERSION_STRING);
/* Shouldn't serf do this for us? */
serf_bucket_headers_setn(hdrs_bkt, "Accept-Encoding", "gzip");
if (ctx->authn != NULL) {
serf_bucket_headers_setn(hdrs_bkt, "Authorization", ctx->authn);
}
*acceptor = ctx->acceptor;
*acceptor_baton = ctx->acceptor_baton;
*handler = ctx->handler;
*handler_baton = ctx;
return APR_SUCCESS;
}
static apr_status_t setup_bwtp_upgrade(serf_request_t *request,
void *setup_baton,
serf_bucket_t **req_bkt,
serf_response_acceptor_t *acceptor,
void **acceptor_baton,
serf_response_handler_t *handler,
void **handler_baton,
apr_pool_t *pool)
{
serf_bucket_t *hdrs_bkt;
handler_baton_t *ctx = setup_baton;
*req_bkt = serf_bucket_request_create("OPTIONS", "*", NULL,
serf_request_get_alloc(request));
hdrs_bkt = serf_bucket_request_get_headers(*req_bkt);
serf_bucket_headers_setn(hdrs_bkt, "Upgrade", "BWTP/1.0");
serf_bucket_headers_setn(hdrs_bkt, "Connection", "Upgrade");
*acceptor = ctx->acceptor;
*acceptor_baton = ctx->acceptor_baton;
*handler = handle_bwtp_upgrade;
*handler_baton = ctx;
return APR_SUCCESS;
}
static apr_status_t setup_channel(serf_request_t *request,
void *setup_baton,
serf_bucket_t **req_bkt,
serf_response_acceptor_t *acceptor,
void **acceptor_baton,
serf_response_handler_t *handler,
void **handler_baton,
apr_pool_t *pool)
{
handler_baton_t *ctx = setup_baton;
serf_bucket_t *hdrs_bkt;
*req_bkt = serf_bucket_bwtp_channel_open(0, ctx->path,
serf_request_get_alloc(request));
hdrs_bkt = serf_bucket_bwtp_frame_get_headers(*req_bkt);
/* FIXME: Shouldn't we be able to figure out the host ourselves? */
serf_bucket_headers_setn(hdrs_bkt, "Host", ctx->host);
serf_bucket_headers_setn(hdrs_bkt, "User-Agent",
"Serf/" SERF_VERSION_STRING);
/* Shouldn't serf do this for us? */
serf_bucket_headers_setn(hdrs_bkt, "Accept-Encoding", "gzip");
if (ctx->authn != NULL) {
serf_bucket_headers_setn(hdrs_bkt, "Authorization", ctx->authn);
}
*acceptor = ctx->acceptor;
*acceptor_baton = ctx->acceptor_baton;
*handler = ctx->handler;
*handler_baton = ctx;
return APR_SUCCESS;
}
static apr_status_t setup_close(serf_request_t *request,
void *setup_baton,
serf_bucket_t **req_bkt,
serf_response_acceptor_t *acceptor,
void **acceptor_baton,
serf_response_handler_t *handler,
void **handler_baton,
apr_pool_t *pool)
{
handler_baton_t *ctx = setup_baton;
*req_bkt = serf_bucket_bwtp_channel_close(0, serf_request_get_alloc(request));
*acceptor = ctx->acceptor;
*acceptor_baton = ctx->acceptor_baton;
*handler = ctx->handler;
*handler_baton = ctx;
return APR_SUCCESS;
}
static apr_status_t handle_bwtp(serf_request_t *request,
serf_bucket_t *response,
void *handler_baton,
apr_pool_t *pool)
{
const char *data;
apr_size_t len;
apr_status_t status;
if (!response) {
/* A NULL response can come back if the request failed completely */
return APR_EGENERAL;
}
status = serf_bucket_bwtp_incoming_frame_wait_for_headers(response);
if (SERF_BUCKET_READ_ERROR(status) || APR_STATUS_IS_EAGAIN(status)) {
return status;
}
printf("BWTP %p frame: %d %d %s\n",
response, serf_bucket_bwtp_frame_get_channel(response),
serf_bucket_bwtp_frame_get_type(response),
serf_bucket_bwtp_frame_get_phrase(response));
while (1) {
status = serf_bucket_read(response, 2048, &data, &len);
if (SERF_BUCKET_READ_ERROR(status))
return status;
/* got some data. print it out. */
if (len) {
puts("BWTP body:\n---");
fwrite(data, 1, len, stdout);
puts("\n---");
}
/* are we done yet? */
if (APR_STATUS_IS_EOF(status)) {
return APR_EOF;
}
/* have we drained the response so far? */
if (APR_STATUS_IS_EAGAIN(status))
return status;
/* loop to read some more. */
}
/* NOTREACHED */
}
static apr_status_t handle_bwtp_upgrade(serf_request_t *request,
serf_bucket_t *response,
void *handler_baton,
apr_pool_t *pool)
{
const char *data;
apr_size_t len;
serf_status_line sl;
apr_status_t status;
handler_baton_t *ctx = handler_baton;
if (!response) {
/* A NULL response can come back if the request failed completely */
return APR_EGENERAL;
}
status = serf_bucket_response_status(response, &sl);
if (status) {
return status;
}
while (1) {
status = serf_bucket_read(response, 2048, &data, &len);
if (SERF_BUCKET_READ_ERROR(status))
return status;
/* got some data. print it out. */
fwrite(data, 1, len, stdout);
/* are we done yet? */
if (APR_STATUS_IS_EOF(status)) {
int i;
serf_connection_t *conn;
serf_request_t *new_req;
conn = serf_request_get_conn(request);
serf_connection_set_async_responses(conn,
accept_bwtp, ctx->acceptor_baton, handle_bwtp, NULL);
new_req = serf_connection_request_create(conn, setup_channel, ctx);
for (i = 0; i < ctx->acceptor_baton->count; i++) {
new_req = serf_connection_request_create(conn,
setup_request,
ctx);
}
return APR_EOF;
}
/* have we drained the response so far? */
if (APR_STATUS_IS_EAGAIN(status))
return status;
/* loop to read some more. */
}
/* NOTREACHED */
}
static apr_status_t handle_response(serf_request_t *request,
serf_bucket_t *response,
void *handler_baton,
apr_pool_t *pool)
{
const char *data;
apr_size_t len;
serf_status_line sl;
apr_status_t status;
handler_baton_t *ctx = handler_baton;
if (!response) {
/* A NULL response can come back if the request failed completely */
return APR_EGENERAL;
}
status = serf_bucket_response_status(response, &sl);
if (status) {
return status;
}
while (1) {
status = serf_bucket_read(response, 2048, &data, &len);
if (SERF_BUCKET_READ_ERROR(status))
return status;
/* got some data. print it out. */
fwrite(data, 1, len, stdout);
/* are we done yet? */
if (APR_STATUS_IS_EOF(status)) {
if (ctx->print_headers) {
serf_bucket_t *hdrs;
hdrs = serf_bucket_response_get_headers(response);
while (1) {
status = serf_bucket_read(hdrs, 2048, &data, &len);
if (SERF_BUCKET_READ_ERROR(status))
return status;
fwrite(data, 1, len, stdout);
if (APR_STATUS_IS_EOF(status)) {
break;
}
}
}
apr_atomic_dec32(&ctx->requests_outstanding);
if (!ctx->requests_outstanding) {
serf_connection_t *conn;
serf_request_t *new_req;
conn = serf_request_get_conn(request);
new_req =
serf_connection_request_create(conn, setup_close, ctx);
}
return APR_EOF;
}
/* have we drained the response so far? */
if (APR_STATUS_IS_EAGAIN(status))
return status;
/* loop to read some more. */
}
/* NOTREACHED */
}
static void print_usage(apr_pool_t *pool)
{
puts("serf_get [options] URL");
puts("-h\tDisplay this help");
puts("-v\tDisplay version");
puts("-H\tPrint response headers");
puts("-n <count> Fetch URL <count> times");
puts("-a <user:password> Present Basic authentication credentials");
puts("-m <method> Use the <method> HTTP Method");
puts("-f <file> Use the <file> as the request body");
}
int main(int argc, const char **argv)
{
apr_status_t status;
apr_pool_t *pool;
apr_sockaddr_t *address;
serf_context_t *context;
serf_connection_t *connection;
serf_request_t *request;
app_baton_t app_ctx;
handler_baton_t handler_ctx;
apr_uri_t url;
const char *raw_url, *method, *req_body_path = NULL;
int i;
int print_headers;
char *authn = NULL;
apr_getopt_t *opt;
char opt_c;
const char *opt_arg;
apr_initialize();
atexit(apr_terminate);
apr_pool_create(&pool, NULL);
/* serf_initialize(); */
/* Default to one round of fetching. */
app_ctx.count = 1;
/* Default to GET. */
method = "GET";
/* Do not print headers by default. */
print_headers = 0;
apr_getopt_init(&opt, pool, argc, argv);
while ((status = apr_getopt(opt, "a:f:hHm:n:v", &opt_c, &opt_arg)) ==
APR_SUCCESS) {
int srclen, enclen;
switch (opt_c) {
case 'a':
srclen = strlen(opt_arg);
enclen = apr_base64_encode_len(srclen);
authn = apr_palloc(pool, enclen + 6);
strcpy(authn, "Basic ");
(void) apr_base64_encode(&authn[6], opt_arg, srclen);
break;
case 'f':
req_body_path = opt_arg;
break;
case 'h':
print_usage(pool);
exit(0);
break;
case 'H':
print_headers = 1;
break;
case 'm':
method = opt_arg;
break;
case 'n':
errno = 0;
app_ctx.count = apr_strtoi64(opt_arg, NULL, 10);
if (errno) {
printf("Problem converting number of times to fetch URL (%d)\n",
errno);
return errno;
}
break;
case 'v':
puts("Serf version: " SERF_VERSION_STRING);
exit(0);
default:
break;
}
}
if (opt->ind != opt->argc - 1) {
print_usage(pool);
exit(-1);
}
raw_url = argv[opt->ind];
apr_uri_parse(pool, raw_url, &url);
if (!url.port) {
url.port = apr_uri_port_of_scheme(url.scheme);
}
if (!url.path) {
url.path = "/";
}
if (strcasecmp(url.scheme, "https") == 0) {
app_ctx.using_ssl = 1;
}
else {
app_ctx.using_ssl = 0;
}
status = apr_sockaddr_info_get(&address,
url.hostname, APR_UNSPEC, url.port, 0,
pool);
if (status) {
printf("Error creating address: %d\n", status);
apr_pool_destroy(pool);
exit(1);
}
context = serf_context_create(pool);
/* ### Connection or Context should have an allocator? */
app_ctx.bkt_alloc = serf_bucket_allocator_create(pool, NULL, NULL);
app_ctx.ssl_ctx = NULL;
connection = serf_connection_create(context, address,
conn_setup, &app_ctx,
closed_connection, &app_ctx,
pool);
handler_ctx.requests_outstanding = 0;
handler_ctx.print_headers = print_headers;
handler_ctx.host = url.hostinfo;
handler_ctx.method = method;
handler_ctx.path = url.path;
handler_ctx.authn = authn;
handler_ctx.req_body_path = req_body_path;
handler_ctx.acceptor = accept_response;
handler_ctx.acceptor_baton = &app_ctx;
handler_ctx.handler = handle_response;
request = serf_connection_request_create(connection, setup_bwtp_upgrade,
&handler_ctx);
for (i = 0; i < app_ctx.count; i++) {
apr_atomic_inc32(&handler_ctx.requests_outstanding);
}
while (1) {
status = serf_context_run(context, SERF_DURATION_FOREVER, pool);
if (APR_STATUS_IS_TIMEUP(status))
continue;
if (status) {
char buf[200];
printf("Error running context: (%d) %s\n", status,
apr_strerror(status, buf, sizeof(buf)));
apr_pool_destroy(pool);
exit(1);
}
if (!apr_atomic_read32(&handler_ctx.requests_outstanding)) {
break;
}
/* Debugging purposes only! */
serf_debug__closed_conn(app_ctx.bkt_alloc);
}
serf_connection_close(connection);
apr_pool_destroy(pool);
return 0;
}