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#include <libubox/ustream-ssl.h>
#include "uclient.h"
#include "uclient-utils.h"
#include "uclient-backend.h"
struct uclient_url __hidden *
uclient_get_url(const char *url_str, const char *auth_str)
{
static const struct uclient_backend *backends[] = {
&uclient_backend_http,
};
const struct uclient_backend *backend;
const char * const *prefix = NULL;
struct uclient_url *url;
const char *location;
char *host_buf, *uri_buf, *auth_buf, *next;
int i, host_len;
for (i = 0; i < ARRAY_SIZE(backends); i++) {
int prefix_len = 0;
for (prefix = backends[i]->prefix; *prefix; prefix++) {
prefix_len = strlen(*prefix);
if (!strncmp(url_str, *prefix, prefix_len))
break;
}
if (!*prefix)
continue;
url_str += prefix_len;
backend = backends[i];
break;
}
if (!*prefix)
return NULL;
next = strchr(url_str, '/');
if (next) {
location = next;
host_len = next - url_str;
} else {
location = "/";
host_len = strlen(url_str);
}
url = calloc_a(sizeof(*url),
&host_buf, host_len + 1,
&uri_buf, strlen(location) + 1,
&auth_buf, auth_str ? strlen(auth_str) + 1 : 0);
url->backend = backend;
url->location = strcpy(uri_buf, location);
url->prefix = prefix - backend->prefix;
url->host = strncpy(host_buf, url_str, host_len);
next = strchr(host_buf, '@');
if (next) {
*next = 0;
url->host = next + 1;
if (uclient_urldecode(host_buf, host_buf, false) < 0)
goto free;
url->auth = host_buf;
}
if (!url->auth && auth_str)
url->auth = strcpy(auth_buf, auth_str);
/* Literal IPv6 address */
if (*url->host == '[') {
url->host++;
next = strrchr(url->host, ']');
if (!next)
goto free;
*(next++) = 0;
if (*next == ':')
url->port = next + 1;
} else {
next = strrchr(url->host, ':');
if (next)
url->port = next + 1;
}
return url;
free:
free(url);
return NULL;
}
struct uclient *uclient_new(const char *url_str, const struct uclient_cb *cb)
{
struct uclient *cl;
struct uclient_url *url;
url = uclient_get_url(url_str, NULL);
if (!url)
return NULL;
cl = url->backend->alloc();
if (!cl)
return NULL;
cl->backend = url->backend;
cl->cb = cb;
cl->url = url;
return cl;
}
int uclient_connect_url(struct uclient *cl, const char *url_str)
{
struct uclient_url *url = cl->url;
const struct uclient_backend *backend = cl->backend;
if (url_str) {
url = uclient_get_url(url_str, NULL);
if (!url)
return -1;
if (url->backend != cl->backend)
return -1;
free(cl->url);
cl->url = url;
if (backend->update_url)
backend->update_url(cl);
}
return backend->connect(cl);
}
void uclient_free(struct uclient *cl)
{
struct uclient_url *url = cl->url;
if (cl->backend->free)
cl->backend->free(cl);
else
free(cl);
free(url);
}
int uclient_write(struct uclient *cl, char *buf, int len)
{
if (!cl->backend->write)
return -1;
return cl->backend->write(cl, buf, len);
}
int uclient_request(struct uclient *cl)
{
if (!cl->backend->request)
return -1;
return cl->backend->request(cl);
}
int uclient_read(struct uclient *cl, char *buf, int len)
{
if (!cl->backend->read)
return -1;
return cl->backend->read(cl, buf, len);
}
static void __uclient_backend_change_state(struct uloop_timeout *timeout)
{
struct uclient *cl = container_of(timeout, struct uclient, timeout);
if (cl->error && cl->cb->error)
cl->cb->error(cl);
else if (cl->eof && cl->cb->data_eof)
cl->cb->data_eof(cl);
}
static void uclient_backend_change_state(struct uclient *cl)
{
cl->timeout.cb = __uclient_backend_change_state;
uloop_timeout_set(&cl->timeout, 1);
}
void __hidden uclient_backend_set_error(struct uclient *cl)
{
if (cl->error)
return;
cl->error = true;
uclient_backend_change_state(cl);
}
void __hidden uclient_backend_set_eof(struct uclient *cl)
{
if (cl->eof || cl->error)
return;
cl->eof = true;
uclient_backend_change_state(cl);
}
void __hidden uclient_backend_reset_state(struct uclient *cl)
{
cl->error = false;
cl->eof = false;
uloop_timeout_cancel(&cl->timeout);
}
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