1/* ====================================================================
2 *    Licensed to the Apache Software Foundation (ASF) under one
3 *    or more contributor license agreements.  See the NOTICE file
4 *    distributed with this work for additional information
5 *    regarding copyright ownership.  The ASF licenses this file
6 *    to you under the Apache License, Version 2.0 (the
7 *    "License"); you may not use this file except in compliance
8 *    with the License.  You may obtain a copy of the License at
9 *
10 *      http://www.apache.org/licenses/LICENSE-2.0
11 *
12 *    Unless required by applicable law or agreed to in writing,
13 *    software distributed under the License is distributed on an
14 *    "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15 *    KIND, either express or implied.  See the License for the
16 *    specific language governing permissions and limitations
17 *    under the License.
18 * ====================================================================
19 */
20
21#include <apr_pools.h>
22#include <apr_network_io.h>
23
24#include "serf.h"
25#include "serf_private.h"
26#include "serf_bucket_util.h"
27
28
29typedef struct {
30    apr_socket_t *skt;
31
32    serf_databuf_t databuf;
33
34    /* Progress callback */
35    serf_progress_t progress_func;
36    void *progress_baton;
37} socket_context_t;
38
39
40static apr_status_t socket_reader(void *baton, apr_size_t bufsize,
41                                  char *buf, apr_size_t *len)
42{
43    socket_context_t *ctx = baton;
44    apr_status_t status;
45
46    *len = bufsize;
47    status = apr_socket_recv(ctx->skt, buf, len);
48
49    if (status && !APR_STATUS_IS_EAGAIN(status))
50        serf__log_skt(SOCK_VERBOSE, __FILE__, ctx->skt,
51                      "socket_recv error %d\n", status);
52
53    if (*len)
54        serf__log_skt(SOCK_MSG_VERBOSE, __FILE__, ctx->skt,
55                      "--- socket_recv:\n%.*s\n-(%d)-\n",
56                      *len, buf, *len);
57
58    if (ctx->progress_func && *len)
59        ctx->progress_func(ctx->progress_baton, *len, 0);
60
61    return status;
62}
63
64serf_bucket_t *serf_bucket_socket_create(
65    apr_socket_t *skt,
66    serf_bucket_alloc_t *allocator)
67{
68    socket_context_t *ctx;
69
70    /* Oh, well. */
71    ctx = serf_bucket_mem_alloc(allocator, sizeof(*ctx));
72    ctx->skt = skt;
73
74    serf_databuf_init(&ctx->databuf);
75    ctx->databuf.read = socket_reader;
76    ctx->databuf.read_baton = ctx;
77
78    ctx->progress_func = NULL;
79    ctx->progress_baton = NULL;
80    return serf_bucket_create(&serf_bucket_type_socket, allocator, ctx);
81}
82
83void serf_bucket_socket_set_read_progress_cb(
84    serf_bucket_t *bucket,
85    const serf_progress_t progress_func,
86    void *progress_baton)
87{
88    socket_context_t *ctx = bucket->data;
89
90    ctx->progress_func = progress_func;
91    ctx->progress_baton = progress_baton;
92}
93
94static apr_status_t serf_socket_read(serf_bucket_t *bucket,
95                                     apr_size_t requested,
96                                     const char **data, apr_size_t *len)
97{
98    socket_context_t *ctx = bucket->data;
99
100    return serf_databuf_read(&ctx->databuf, requested, data, len);
101}
102
103static apr_status_t serf_socket_readline(serf_bucket_t *bucket,
104                                         int acceptable, int *found,
105                                         const char **data, apr_size_t *len)
106{
107    socket_context_t *ctx = bucket->data;
108
109    return serf_databuf_readline(&ctx->databuf, acceptable, found, data, len);
110}
111
112static apr_status_t serf_socket_peek(serf_bucket_t *bucket,
113                                     const char **data,
114                                     apr_size_t *len)
115{
116    socket_context_t *ctx = bucket->data;
117
118    return serf_databuf_peek(&ctx->databuf, data, len);
119}
120
121const serf_bucket_type_t serf_bucket_type_socket = {
122    "SOCKET",
123    serf_socket_read,
124    serf_socket_readline,
125    serf_default_read_iovec,
126    serf_default_read_for_sendfile,
127    serf_default_read_bucket,
128    serf_socket_peek,
129    serf_default_destroy_and_data,
130};
131