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hgd-netd.c
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hgd-netd.c
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/*
* Copyright (c) 2011, Edd Barrett <vext01@gmail.com>
* Copyright (c) 2011, Martin Ellis <ellism88@gmail.com>
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <sys/stat.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include "config.h"
#ifdef HAVE_PYTHON
#undef _POSIX_C_SOURCE /* crappy hack for debian python */
#include <Python.h> /* defines _GNU_SOURCE comes before stdio.h */
#include "py.h"
#else
#define _GNU_SOURCE
#endif
#include <err.h>
#include <errno.h>
#include <fcntl.h>
#include <libgen.h>
#include <netdb.h>
#include <poll.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#ifdef HAVE_LIBCONFIG
#include "cfg.h"
#endif
#include "user.h"
#include "db.h"
#include "hgd.h"
#include "mplayer.h"
#include "net.h"
#include <openssl/ssl.h>
#ifdef HAVE_TAGLIB
#include <tag_c.h>
#endif
const char *hgd_component = HGD_COMPONENT_HGD_NETD;
int port = HGD_DFL_PORT;
int sock_backlog = HGD_DFL_BACKLOG;
int svr_fd = -1;
int flood_limit = HGD_MAX_USER_QUEUE;
int background = 1;
long long int max_upload_size = HGD_DFL_MAX_UPLOAD;
uint8_t num_bad_commands = 0;
uint8_t lookup_client_dns = 1;
int req_votes = HGD_DFL_REQ_VOTES;
uint8_t single_client = 0;
char *vote_sound = NULL;
SSL_METHOD *method = NULL;
SSL_CTX *ctx = NULL;
uint8_t crypto_pref = HGD_CRYPTO_PREF_IF_POSS;
uint8_t ssl_capable = 0;
char *ssl_cert_path = NULL;
char *ssl_key_path = NULL;
/*
* clean up and exit, if the flag 'exit_ok' is not 1, upon call,
* this indicates an error occured or kill signal was caught
*/
void
hgd_exit_nicely()
{
if (!exit_ok)
DPRINTF(HGD_D_ERROR, "hgd-netd was interrupted or crashed");
if (svr_fd >= 0) {
if (shutdown(svr_fd, SHUT_RDWR) == -1)
DPRINTF(HGD_D_WARN,
"Can't shutdown socket: %s", SERROR);
close(svr_fd);
}
if (db_path)
free(db_path);
if (filestore_path)
free(filestore_path);
if (state_path)
free(state_path);
if (db)
sqlite3_close(db);
hgd_cleanup_ssl(&ctx);
if (restarting)
hgd_restart_myself();
/* after restart, so that we can report a SIGHUP */
HGD_CLOSE_SYSLOG();
_exit (!exit_ok);
}
int
hgd_get_tag_metadata(char *filename, struct hgd_media_tag *meta)
{
#ifdef HAVE_TAGLIB
TagLib_File *file;
TagLib_Tag *tag;
const TagLib_AudioProperties *ap;
#endif
DPRINTF(HGD_D_DEBUG, "Attempting to read tags for '%s'", filename);
meta->artist = xstrdup("");
meta->title = xstrdup("");
meta->album = xstrdup("");
meta->genre = xstrdup("");
meta->year = 0;
meta->duration = 0;
meta->samplerate = 0;
meta->channels = 0;
meta->bitrate = 0;
#ifdef HAVE_TAGLIB
file = taglib_file_new(filename);
if (file == NULL) {
DPRINTF(HGD_D_DEBUG, "taglib could not open '%s'", filename);
return (HGD_FAIL);
}
if (!taglib_file_is_valid(file)) {
DPRINTF(HGD_D_WARN, "invalid tag in '%s'", filename);
return (HGD_FAIL);
}
tag = taglib_file_tag(file);
if (tag == NULL) {
DPRINTF(HGD_D_WARN, "failed to get tag of '%s'", filename);
return (HGD_FAIL);
}
free(meta->artist);
free(meta->title);
free(meta->album);
free(meta->genre);
meta->artist = xstrdup(taglib_tag_artist(tag));
meta->title = xstrdup(taglib_tag_title(tag));
meta->album = xstrdup(taglib_tag_album(tag));
meta->genre = xstrdup(taglib_tag_genre(tag));
meta->year = taglib_tag_year(tag);
/* now audio properties: i dont consider this failing fatal */
ap = taglib_file_audioproperties(file);
if (ap != NULL) {
meta->duration = taglib_audioproperties_length(ap);
meta->samplerate = taglib_audioproperties_samplerate(ap);
meta->channels = taglib_audioproperties_channels(ap);
meta->bitrate = taglib_audioproperties_bitrate(ap);
} else {
DPRINTF(HGD_D_WARN,
"failed to get audio properties: %s", filename);
}
DPRINTF(HGD_D_INFO,
"Got tag from '%s': '%s' by '%s' from the album '%s' from the year"
"'%u' of genre '%s' [%d secs, %d chans, %d Hz, %d bps]\n",
filename, meta->title, meta->artist, meta->album, meta->year,
meta->genre, meta->duration, meta->channels, meta->samplerate,
meta->bitrate);
taglib_file_free(file);
taglib_tag_free_strings();
#else
DPRINTF(HGD_D_DEBUG, "No taglib support, skipping tag retrieval");
#endif
return (HGD_OK);
}
/* return some kind of host identifier, free when done */
char *
hgd_identify_client(struct sockaddr_in *cli_addr)
{
char cli_host[NI_MAXHOST];
char cli_serv[NI_MAXSERV];
char *ret = NULL;
int found_name;
DPRINTF(HGD_D_DEBUG, "Servicing client");
/* first try to get a valid DNS name for the client */
if (lookup_client_dns) {
found_name = getnameinfo((struct sockaddr *) cli_addr,
sizeof(struct sockaddr_in),
cli_host, sizeof(cli_host), cli_serv,
sizeof(cli_serv), NI_NAMEREQD | NI_NOFQDN);
if (found_name == 0)
goto found; /* found a hostname */
DPRINTF(HGD_D_WARN, "Client hostname *not* found: %s",
gai_strerror(found_name));
}
/* fallback on an ip address to identify the client */
found_name = getnameinfo((struct sockaddr *) cli_addr,
sizeof(struct sockaddr_in), cli_host, sizeof(cli_host),
cli_serv, sizeof(cli_serv), NI_NUMERICHOST);
if (found_name == 0)
goto found; /* found an IP address */
DPRINTF(HGD_D_WARN, "Can't identify client ip: %s",
gai_strerror(found_name));
return (NULL);
found:
/* good, we got an identifier name/ip */
xasprintf(&ret, "%s", cli_host);
return (ret);
}
/*
* respond to client what is currently playing.
*
* response:
* ok|0 nothing playing
* ok|1|id|filename|user track is playing
* err|... failure
*/
int
hgd_cmd_now_playing(struct hgd_session *sess, char **args)
{
struct hgd_playlist_item playing;
char *reply;
int num_votes;
int voted;
(void) args; /* silence compiler */
memset(&playing, 0, sizeof(playing));
if (hgd_get_playing_item(&playing) == HGD_FAIL) {
hgd_sock_send_line(sess->sock_fd, sess->ssl,
"err|" HGD_RESP_E_INT);
hgd_free_playlist_item(&playing);
return (HGD_FAIL);
}
if (playing.filename == NULL) {
hgd_sock_send_line(sess->sock_fd, sess->ssl, "ok|0");
} else {
if ((hgd_get_num_votes(&num_votes)) != HGD_OK) {
DPRINTF(HGD_D_ERROR, "can't get votes");
hgd_sock_send_line(sess->sock_fd, sess->ssl,
"err|" HGD_RESP_E_INT);
return (HGD_FAIL);
}
if (sess->user != NULL) {
if (hgd_user_has_voted(
sess->user->name, &voted) != HGD_OK) {
DPRINTF(HGD_D_WARN, "cant decide if voted: %s",
sess->user->name);
hgd_sock_send_line(sess->sock_fd, sess->ssl,
"err|" HGD_RESP_E_INT);
return (HGD_FAIL);
}
} else
voted = -1;
xasprintf(&reply, "ok|1|%d|%s|%s|%s|%s|"
"%s|%s|%d|%d|%d|%d|%d|%d|%d", /* added in 0.5 */
playing.id, playing.filename + strlen(HGD_UNIQ_FILE_PFX),
playing.tags.artist, playing.tags.title, playing.user,
playing.tags.album, playing.tags.genre,
playing.tags.duration, playing.tags.bitrate,
playing.tags.samplerate, playing.tags.channels,
playing.tags.year, (req_votes - num_votes),
voted);
hgd_sock_send_line(sess->sock_fd, sess->ssl, reply);
free(reply);
}
hgd_free_playlist_item(&playing);
return (HGD_OK);
}
/*
* Identify yourself to the server
*
* args: username, pass
*/
int
hgd_cmd_user(struct hgd_session *sess, char **args)
{
struct hgd_user *info;
DPRINTF(HGD_D_INFO, "User on host '%s' authenticating as '%s'",
sess->cli_str, args[0]);
/* get salt */
info = hgd_authenticate_user(args[0], args[1]);
if (info == NULL) {
hgd_sock_send_line(sess->sock_fd, sess->ssl,
"err|" HGD_RESP_E_DENY);
return (HGD_FAIL);
}
DPRINTF(HGD_D_INFO, "User '%s' successfully authenticated", args[0]);
/* only if successful do we assign the info struct */
sess->user = info;
hgd_sock_send_line(sess->sock_fd, sess->ssl, "ok");
return (HGD_OK);
}
/*
* queue a track
*
* args: filename|size
* reponses
* ok... ok and waiting for payload
* ok ok and payload accepted
* err|...
*
* after 'ok...'
* client then sends 'size' bytes of the media to queue
*/
int
hgd_cmd_queue(struct hgd_session *sess, char **args)
{
char *filename_p = args[0], *payload = NULL;
size_t bytes = atoi(args[1]);
char *unique_fn = NULL;
int f = -1, ret = HGD_OK;
size_t bytes_recvd = 0, to_write;
ssize_t write_ret;
char *filename;
struct hgd_media_tag tags;
if ((flood_limit >= 0) &&
(hgd_num_tracks_user(sess->user->name) >= flood_limit)) {
DPRINTF(HGD_D_WARN,
"User '%s' trigger flood protection", sess->user->name);
hgd_sock_send_line(sess->sock_fd,
sess->ssl, "err|" HGD_RESP_E_FLOOD);
return (HGD_FAIL);
}
/* strip path, we don't care about that */
filename = basename(filename_p);
if ((bytes == 0) || ((long long int) bytes > max_upload_size)) {
DPRINTF(HGD_D_WARN, "Incorrect file size");
hgd_sock_send_line(sess->sock_fd, sess->ssl,
"err|" HGD_RESP_E_FLSIZE);
ret = HGD_FAIL;
goto clean;
}
/* prepare to recieve the media file and stash away */
xasprintf(&unique_fn, "%s/" HGD_UNIQ_FILE_PFX "%s", filestore_path, filename);
DPRINTF(HGD_D_DEBUG, "Template for filestore is '%s'", unique_fn);
f = mkstemps(unique_fn, strlen(filename) + 1); /* +1 for hyphen */
if (f < 0) {
DPRINTF(HGD_D_ERROR, "mkstemp: %s: %s",
filestore_path, SERROR);
hgd_sock_send_line(sess->sock_fd, sess->ssl, "err|" HGD_RESP_E_INT);
ret = HGD_FAIL;
goto clean;
}
hgd_sock_send_line(sess->sock_fd, sess->ssl, "ok|...");
DPRINTF(HGD_D_INFO, "Recving %d byte payload '%s' from %s into %s",
(int) bytes, filename, sess->user->name, unique_fn);
/* recieve bytes in small chunks so that we dont use moar RAM */
while (bytes_recvd != bytes) {
if (bytes - bytes_recvd < HGD_BINARY_RECV_SZ)
to_write = bytes - bytes_recvd;
else
to_write = HGD_BINARY_RECV_SZ;
payload = NULL;
DPRINTF(HGD_D_DEBUG, "Waiting for chunk of length %d bytes",
(int) to_write);
payload = hgd_sock_recv_bin(sess->sock_fd,
sess->ssl, to_write);
if (payload == NULL) {
DPRINTF(HGD_D_ERROR, "failed to recv binary");
hgd_sock_send_line(sess->sock_fd,
sess->ssl, "err|" HGD_RESP_E_INT);
/* try to clean up a partial upload */
if (fsync(f) < 0)
DPRINTF(HGD_D_WARN,
"can't sync partial file: %s", SERROR);
if (close(f) < 0)
DPRINTF(HGD_D_WARN,
"can't close partial file: %s", SERROR);
f = -1;
if (unlink(unique_fn) < 0) {
DPRINTF(HGD_D_WARN,
"can't unlink partial upload: '%s': %s",
unique_fn, SERROR);
}
ret = HGD_FAIL;
goto clean;
}
write_ret = write(f, payload, to_write);
if (write_ret < to_write) {
/*
* We are not sure if this is possible.
* It has not *yet* happened.
*/
DPRINTF(HGD_D_ERROR,
"Short write: %d vs %d",
(int) write_ret, (int) to_write);
ret = HGD_FAIL;
goto clean;
} else if (write_ret < 0) {
DPRINTF(HGD_D_ERROR, "Failed to write %d bytes: %s",
(int) to_write, SERROR);
hgd_sock_send_line(sess->sock_fd,
sess->ssl, "err|" HGD_RESP_E_INT);
unlink(unique_fn); /* don't much care if this fails */
ret = HGD_FAIL;
goto clean;
}
bytes_recvd += to_write;
DPRINTF(HGD_D_DEBUG, "Recvd binary chunk of length %d bytes",
(int) to_write);
DPRINTF(HGD_D_DEBUG, "Expecting a further %d bytes",
(int) (bytes - bytes_recvd));
free(payload);
}
payload = NULL;
/*
* get tag metadata
* no error that there is no #ifdef HAVE_TAGLIB
*/
hgd_get_tag_metadata(unique_fn, &tags);
/* insert track into db */
if (hgd_insert_track(basename(unique_fn),
&tags, sess->user->name) != HGD_OK) {
hgd_sock_send_line(sess->sock_fd, sess->ssl,
"err|" HGD_RESP_E_INT);
goto clean;
}
hgd_free_media_tags(&tags);
hgd_sock_send_line(sess->sock_fd, sess->ssl, "ok");
DPRINTF(HGD_D_INFO, "Transfer of '%s' complete", filename);
clean:
if (f != -1)
close(f);
if (payload)
free(payload);
if (unique_fn)
free(unique_fn);
if (bytes_recvd != bytes)
ret = HGD_FAIL;
return (ret);
}
/*
* report back items in the playlist
*/
int
hgd_cmd_playlist(struct hgd_session *sess, char **args)
{
char *resp;
struct hgd_playlist list;
int i, num_votes;
int voted = 0;
(void) args;
if (hgd_get_playlist(&list) == HGD_FAIL) {
hgd_sock_send_line(sess->sock_fd, sess->ssl,
"err|" HGD_RESP_E_INT);
return (HGD_FAIL);
}
/* and respond to client */
xasprintf(&resp, "ok|%d", list.n_items);
hgd_sock_send_line(sess->sock_fd, sess->ssl, resp);
free(resp);
if ((hgd_get_num_votes(&num_votes)) != HGD_OK) {
DPRINTF(HGD_D_ERROR, "can't get votes");
hgd_sock_send_line(sess->sock_fd, sess->ssl,
"err|" HGD_RESP_E_INT);
return (HGD_FAIL);
}
if (sess->user != NULL) {
if (hgd_user_has_voted(sess->user->name, &voted) != HGD_OK) {
DPRINTF(HGD_D_WARN, "problem determining if voted: %s",
sess->user->name);
hgd_sock_send_line(sess->sock_fd, sess->ssl,
"err|" HGD_RESP_E_INT);
return (HGD_FAIL);
}
}
else {
voted = -1;
}
for (i = 0; i < list.n_items; i++) {
xasprintf(&resp, "%d|%s|%s|%s|%s|%s|%s|%d|%d|%d|%d|%d|%d|%d",
list.items[i]->id,
list.items[i]->filename + strlen(HGD_UNIQ_FILE_PFX),
list.items[i]->tags.artist,
list.items[i]->tags.title,
list.items[i]->user,
list.items[i]->tags.album,
list.items[i]->tags.genre,
list.items[i]->tags.duration,
list.items[i]->tags.bitrate,
list.items[i]->tags.samplerate,
list.items[i]->tags.channels,
list.items[i]->tags.year,
(i == 0 ? (req_votes - num_votes) : req_votes),
(i == 0 ? voted : 0)
);
hgd_sock_send_line(sess->sock_fd, sess->ssl, resp);
DPRINTF(HGD_D_DEBUG, "%s\n", resp);
free(resp);
}
hgd_free_playlist(&list);
return (HGD_OK);
}
int
hgd_cmd_vote_off(struct hgd_session *sess, char **args)
{
char *ipc_path = NULL;
char *scmd, id_str[HGD_ID_STR_SZ], *read;
FILE *ipc_file;
int open_ret, num_votes;
int ret = HGD_FAIL;
DPRINTF(HGD_D_INFO, "%s wants to skip track", sess->user->name);
/*
* Is the file they are voting off playing?
* We check this using the ipc file playd writes for us. This
* contains (if existent), the tid of the currently playing file.
*
* We use this file with locks to avoid race conditions.
*/
xasprintf(&ipc_path, "%s/%s", state_path, HGD_PLAYING_FILE);
open_ret = hgd_file_open_and_lock(ipc_path, F_RDLCK, &ipc_file);
switch (open_ret) {
case HGD_OK:
break; /* good */
case HGD_FAIL_ENOENT:
DPRINTF(HGD_D_WARN, "nothing playing to vote off");
hgd_sock_send_line(sess->sock_fd, sess->ssl,
"err|" HGD_RESP_E_NOPLAY);
goto clean;
break;
default:
DPRINTF(HGD_D_ERROR, "failed to open ipc file");
hgd_sock_send_line(sess->sock_fd, sess->ssl,
"err|" HGD_RESP_E_INT);
goto clean;
break;
};
/* Read the track id from the ipc file */
read = fgets(id_str, HGD_ID_STR_SZ, ipc_file);
hgd_file_unlock_and_close(ipc_file);
if (read == NULL) {
if (!feof(ipc_file)) {
DPRINTF(HGD_D_WARN, "Can't find track id in ipc file");
hgd_sock_send_line(sess->sock_fd, sess->ssl,
"err|" HGD_RESP_E_INT);
goto clean;
}
}
/* this check only happens for the "safe" varient for vo */
if ((args != NULL) && (atoi(id_str) != atoi(args[0]))) {
DPRINTF(HGD_D_INFO, "Track to voteoff isn't playing");
hgd_sock_send_line(sess->sock_fd, sess->ssl,
"err|" HGD_RESP_E_WRTRK);
goto clean;
}
/* insert vote */
switch (hgd_insert_vote(sess->user->name)) {
case HGD_OK:
break; /* good */
case HGD_FAIL_DUPVOTE:
/* duplicate vote */
DPRINTF(HGD_D_INFO, "User '%s' already voted",
sess->user->name);
hgd_sock_send_line(sess->sock_fd, sess->ssl,
"err|" HGD_RESP_E_DUPVOTE);
return (HGD_OK);
break;
default:
hgd_sock_send_line(sess->sock_fd, sess->ssl,
"err|" HGD_RESP_E_INT);
return (HGD_FAIL);
};
/* play a sound on voting */
if (vote_sound != NULL) {
DPRINTF(HGD_D_DEBUG, "Play voteoff sound: '%s'", vote_sound);
xasprintf(&scmd, "mplayer -really-quiet %s", vote_sound);
if (system(scmd) != 0) {
/* unreachable as mplayer doesn't return non-zero :\ */
DPRINTF(HGD_D_WARN,
"Vote-off noise failed to play: %s", vote_sound);
}
free(scmd);
}
/* are we at the vote limit yet? */
if ((hgd_get_num_votes(&num_votes)) != HGD_OK) {
hgd_sock_send_line(sess->sock_fd,
sess->ssl, "err|" HGD_RESP_E_INT);
return (HGD_FAIL);
}
if (num_votes < req_votes) {
hgd_sock_send_line(sess->sock_fd, sess->ssl, "ok");
return (HGD_OK);
}
DPRINTF(HGD_D_INFO, "Vote limit exceeded - skip track");
if (hgd_skip_track() != HGD_OK) {
DPRINTF(HGD_D_ERROR, "Failed to skip track");
hgd_sock_send_line(sess->sock_fd,
sess->ssl, "err|" HGD_RESP_E_INT);
goto clean;
}
hgd_sock_send_line(sess->sock_fd, sess->ssl, "ok");
ret = HGD_OK;
clean:
if (ipc_path)
free(ipc_path);
return (ret);
}
int
hgd_cmd_vote_off_noarg(struct hgd_session *sess, char **unused)
{
(void) unused;
return (hgd_cmd_vote_off(sess, NULL));
}
int
hgd_cmd_encrypt_questionmark(struct hgd_session *sess, char **unused)
{
(void) unused;
if ((crypto_pref != HGD_CRYPTO_PREF_NEVER) && (ssl_capable))
hgd_sock_send_line(sess->sock_fd, sess->ssl, "ok|tlsv1");
else
hgd_sock_send_line(sess->sock_fd, sess->ssl, "ok|nocrypto");
return (HGD_OK);
}
int
hgd_cmd_proto(struct hgd_session *sess, char **unused)
{
char *reply;
(void) unused;
xasprintf(&reply, "ok|%d|%d", HGD_PROTO_VERSION_MAJOR,
HGD_PROTO_VERSION_MINOR);
hgd_sock_send_line(sess->sock_fd, sess->ssl, reply);
free(reply);
return (HGD_OK);
}
int
hgd_cmd_encrypt(struct hgd_session *sess, char **unused)
{
int ssl_err = 0, ret = -1;
(void) unused;
if (sess->ssl != NULL) {
DPRINTF(HGD_D_WARN, "User tried to enable encyption twice");
hgd_sock_send_line(sess->sock_fd, sess->ssl,
"err|" HGD_RESP_E_SSLAGN);
return (HGD_FAIL);
}
if ((!ssl_capable) || (crypto_pref == HGD_CRYPTO_PREF_NEVER)) {
DPRINTF(HGD_D_WARN, "User tried encrypt, when not possible");
hgd_sock_send_line(sess->sock_fd, sess->ssl,
"err|" HGD_RESP_E_SSLNOAVAIL);
return (HGD_FAIL);
}
DPRINTF(HGD_D_DEBUG, "New SSL for session");
sess->ssl = SSL_new(ctx);
if (sess->ssl == NULL) {
PRINT_SSL_ERR(HGD_D_ERROR, "SSL_new");
goto clean;
}
DPRINTF(HGD_D_DEBUG, "SSL_set_fd");
ssl_err = SSL_set_fd(sess->ssl, sess->sock_fd);
if (ssl_err == 0) {
PRINT_SSL_ERR(HGD_D_ERROR, "SSL_set_fd");
goto clean;
}
DPRINTF(HGD_D_DEBUG, "SSL_accept");
ssl_err = SSL_accept(sess->ssl);
if (ssl_err != 1) {
PRINT_SSL_ERR(HGD_D_ERROR, "SSL_accept");
goto clean;
}
/* This cannot fail so no error check */
SSL_CTX_set_mode(ctx, SSL_MODE_AUTO_RETRY);
ret = HGD_OK; /* all is well */
clean:
if (ret == HGD_FAIL) {
DPRINTF(HGD_D_INFO, "SSL connection failed");
hgd_exit_nicely(); /* be paranoid and kick client */
} else {
DPRINTF(HGD_D_INFO, "SSL connection established");
hgd_sock_send_line(sess->sock_fd, sess->ssl, "ok");
}
return (ret);
}
int
hgd_cmd_user_add(struct hgd_session *sess, char **params)
{
int ret = HGD_FAIL;
(void) sess;
switch (hgd_user_add(params[0], params[1])) {
case HGD_OK:
hgd_sock_send_line(sess->sock_fd, sess->ssl, "ok");
ret = HGD_OK;
break;
case HGD_FAIL_USREXIST:
hgd_sock_send_line(sess->sock_fd,
sess->ssl, "err|" HGD_RESP_E_USREXIST);
break;
default:
hgd_sock_send_line(sess->sock_fd,
sess->ssl, "err|" HGD_RESP_E_INT);
}
return (ret);
}
int
hgd_cmd_user_del(struct hgd_session *sess, char **params)
{
int ret = HGD_FAIL;
(void) sess;
switch (hgd_user_del(params[0])) {
case HGD_OK:
hgd_sock_send_line(sess->sock_fd, sess->ssl, "ok");
ret = HGD_OK;
break;
case HGD_FAIL_USRNOEXIST:
hgd_sock_send_line(sess->sock_fd,
sess->ssl, "err|" HGD_RESP_E_USRNOEXIST);
break;
default:
hgd_sock_send_line(sess->sock_fd,
sess->ssl, "err|" HGD_RESP_E_INT);
}
return (ret);
}
int
hgd_cmd_user_list(struct hgd_session *sess, char **args)
{
struct hgd_user_list *list;
int i, ret = HGD_FAIL;
char *msg, *msg1 = NULL;
(void) sess;
if (hgd_user_list(&list) != HGD_OK) {
hgd_sock_send_line(sess->sock_fd, sess->ssl,
"err|" HGD_RESP_E_INT);
goto clean;
}
xasprintf(&msg, "ok|%d", list->n_users);
hgd_sock_send_line(sess->sock_fd, sess->ssl, msg);
free(msg);
for (i = 0; i < list->n_users; i++) {
xasprintf(&msg1, "%s|%d",
list->users[i]->name, list->users[i]->perms);
hgd_sock_send_line(
sess->sock_fd, sess->ssl, msg1);
free(msg1);
}
ret = HGD_OK;
clean:
if (list != NULL) {
hgd_free_user_list(list);
free(list);
}
return (ret);
}
int
hgd_cmd_pause(struct hgd_session *sess, char **unused)
{
int ret;
(void) sess;
(void) unused;
ret = hgd_pause_track();
if (ret == HGD_OK)
hgd_sock_send_line(sess->sock_fd, sess->ssl, "ok");
else if (ret == HGD_FAIL_NOPLAY)
hgd_sock_send_line(sess->sock_fd,
sess->ssl, "err|" HGD_RESP_E_NOPLAY);
else
hgd_sock_send_line(sess->sock_fd,
sess->ssl, "err|" HGD_RESP_E_DENY);
return (ret);
}
int
hgd_cmd_skip(struct hgd_session *sess, char **unused)
{
int ret;
(void) sess;
(void) unused;
ret = hgd_skip_track();
switch (ret) {
case HGD_FAIL_NOPLAY:
hgd_sock_send_line(sess->sock_fd,
sess->ssl, "err|" HGD_RESP_E_NOPLAY);
break;
case HGD_OK:
hgd_sock_send_line(sess->sock_fd, sess->ssl, "ok");
break;
default:
hgd_sock_send_line(sess->sock_fd,
sess->ssl, "err|" HGD_RESP_E_INT);
break;
};
return (ret);
}
int
hgd_cmd_user_mkadmin(struct hgd_session *sess, char **args)
{
int ret = HGD_FAIL;
switch(hgd_user_mod_perms(args[0], HGD_AUTH_ADMIN, 1)) {
case HGD_OK:
hgd_sock_send_line(sess->sock_fd, sess->ssl, "ok");
ret = HGD_OK;
break;
case HGD_FAIL_USRNOEXIST:
hgd_sock_send_line(sess->sock_fd, sess->ssl,
"err|" HGD_RESP_E_USRNOEXIST);
break;
case HGD_FAIL_PERMNOCHG:
hgd_sock_send_line(sess->sock_fd, sess->ssl,
"err|" HGD_RESP_E_PERMNOCHG);
break;
default:
hgd_sock_send_line(sess->sock_fd, sess->ssl,
"err|" HGD_RESP_E_INT);
};
return (ret);
}
int
hgd_cmd_user_noadmin(struct hgd_session *sess, char **args)
{
int ret = HGD_FAIL;
switch(hgd_user_mod_perms(args[0], HGD_AUTH_ADMIN, 0)) {
case HGD_OK:
hgd_sock_send_line(sess->sock_fd, sess->ssl, "ok");
ret = HGD_OK;
break;
case HGD_FAIL_USRNOEXIST:
hgd_sock_send_line(sess->sock_fd, sess->ssl,
"err|" HGD_RESP_E_USRNOEXIST);
break;
case HGD_FAIL_PERMNOCHG:
hgd_sock_send_line(sess->sock_fd, sess->ssl,
"err|" HGD_RESP_E_PERMNOCHG);
break;
default:
hgd_sock_send_line(sess->sock_fd, sess->ssl,
"err|" HGD_RESP_E_INT);
};
return (ret);
}
/*
* user|perms|has_vote?
*
* authentication has already been checked here
*/
int
hgd_cmd_id(struct hgd_session *sess, char **args)
{
int vote = -1;
char *resp = NULL;
if (hgd_user_has_voted(sess->user->name, &vote) != HGD_OK) {
DPRINTF(HGD_D_WARN, "problem determining if voted: %s",
sess->user->name);
return (HGD_FAIL);
}
xasprintf(&resp, "ok|%s|%u|%d", sess->user->name, sess->user->perms, vote);
hgd_sock_send_line(sess->sock_fd, sess->ssl, resp);
free(resp);
return (HGD_OK);