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lavf/ftp: parse user and password once

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Signed-off-by: Lukasz Marek <lukasz.m.luki2@gmail.com>
This commit is contained in:
Lukasz Marek 2015-04-02 19:22:00 +02:00
parent 3723a18310
commit c043def91f
1 changed files with 31 additions and 23 deletions
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54
libavformat/ftp.c
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@ -26,7 +26,6 @@
#include "libavutil/bprint.h"
#define CONTROL_BUFFER_SIZE 1024
#define CREDENTIALS_BUFFER_SIZE 128
typedef enum {
UNKNOWN,
@ -45,7 +44,8 @@ typedef struct {
int server_data_port; /**< Data connection port opened by server, -1 on error. */
int server_control_port; /**< Control connection port, default is 21 */
char hostname[512]; /**< Server address. */
char credencials[CREDENTIALS_BUFFER_SIZE]; /**< Authentication data */
char *user; /**< Server user */
char *password; /**< Server user's password */
char path[MAX_URL_SIZE]; /**< Path to resource on server. */
int64_t filesize; /**< Size of file on server, -1 on error. */
int64_t position; /**< Current position, calculated. */
@ -72,6 +72,8 @@ static const AVClass ftp_context_class = {
.version = LIBAVUTIL_VERSION_INT,
};
static int ftp_close(URLContext *h);
static int ftp_getc(FTPContext *s)
{
int len;
@ -213,28 +215,16 @@ static void ftp_close_both_connections(FTPContext *s)
static int ftp_auth(FTPContext *s)
{
const char *user = NULL, *pass = NULL;
char *end = NULL, buf[CONTROL_BUFFER_SIZE], credencials[CREDENTIALS_BUFFER_SIZE];
char buf[CONTROL_BUFFER_SIZE];
int err;
static const int user_codes[] = {331, 230, 0};
static const int pass_codes[] = {230, 0};
/* Authentication may be repeated, original string has to be saved */
av_strlcpy(credencials, s->credencials, sizeof(credencials));
user = av_strtok(credencials, ":", &end);
pass = av_strtok(end, ":", &end);
if (!user) {
user = "anonymous";
pass = s->anonymous_password ? s->anonymous_password : "nopassword";
}
snprintf(buf, sizeof(buf), "USER %s\r\n", user);
snprintf(buf, sizeof(buf), "USER %s\r\n", s->user);
err = ftp_send_command(s, buf, user_codes, NULL);
if (err == 331) {
if (pass) {
snprintf(buf, sizeof(buf), "PASS %s\r\n", pass);
if (s->password) {
snprintf(buf, sizeof(buf), "PASS %s\r\n", s->password);
err = ftp_send_command(s, buf, pass_codes, NULL);
} else
return AVERROR(EACCES);
@ -579,7 +569,9 @@ static int ftp_abort(URLContext *h)
static int ftp_open(URLContext *h, const char *url, int flags)
{
char proto[10], path[MAX_URL_SIZE];
char proto[10], path[MAX_URL_SIZE], credencials[MAX_URL_SIZE];
const char *tok_user = NULL, *tok_pass = NULL;
char *end = NULL;
int err;
FTPContext *s = h->priv_data;
@ -590,12 +582,25 @@ static int ftp_open(URLContext *h, const char *url, int flags)
s->position = 0;
av_url_split(proto, sizeof(proto),
s->credencials, sizeof(s->credencials),
credencials, sizeof(credencials),
s->hostname, sizeof(s->hostname),
&s->server_control_port,
path, sizeof(path),
url);
tok_user = av_strtok(credencials, ":", &end);
tok_pass = av_strtok(end, ":", &end);
if (!tok_user) {
tok_user = "anonymous";
tok_pass = av_x_if_null(s->anonymous_password, "nopassword");
}
s->user = av_strdup(tok_user);
s->password = av_strdup(tok_pass);
if (!s->user || (tok_pass && !s->password)) {
err = AVERROR(ENOMEM);
goto fail;
}
if (s->server_control_port < 0 || s->server_control_port > 65535)
s->server_control_port = 21;
@ -619,8 +624,7 @@ static int ftp_open(URLContext *h, const char *url, int flags)
fail:
av_log(h, AV_LOG_ERROR, "FTP open failed\n");
ffurl_closep(&s->conn_control);
ffurl_closep(&s->conn_data);
ftp_close(h);
return err;
}
@ -755,9 +759,13 @@ static int ftp_write(URLContext *h, const unsigned char *buf, int size)
static int ftp_close(URLContext *h)
{
FTPContext *s = h->priv_data;
av_dlog(h, "ftp protocol close\n");
ftp_close_both_connections(h->priv_data);
ftp_close_both_connections(s);
av_freep(&s->user);
av_freep(&s->password);
return 0;
}