* @brief Client code for event-driven programs
*/
-#include <config.h>
-#include "types.h"
+#include "common.h"
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <sys/un.h>
-#include <string.h>
-#include <stdio.h>
#include <unistd.h>
#include <errno.h>
#include <netdb.h>
-#include <stdlib.h>
-#include <assert.h>
#include <inttypes.h>
#include <stddef.h>
#include <time.h>
/* Authentication ************************************************************/
+/** @brief Called with the greeting from the server */
static void authbanner_opcallback(disorder_eclient *c,
struct operation *op) {
size_t nonce_len;
(char *)0);
}
+/** @brief Called with the response to the @c user command */
static void authuser_opcallback(disorder_eclient *c,
struct operation *op) {
char *r;
/* Command support ***********************************************************/
+static const char *errorstring(disorder_eclient *c) {
+ char *s;
+
+ byte_xasprintf(&s, "%s: %s: %d", c->ident, c->line, c->rc);
+ return s;
+}
+
/* for commands with a quoted string response */
static void string_response_opcallback(disorder_eclient *c,
struct operation *op) {
+ disorder_eclient_string_response *completed
+ = (disorder_eclient_string_response *)op->completed;
+
D(("string_response_callback"));
- if(c->rc / 100 == 2) {
+ if(c->rc / 100 == 2 || c->rc == 555) {
if(op->completed) {
- if(c->protocol >= 2) {
+ if(c->rc == 555)
+ completed(op->v, NULL, NULL);
+ else if(c->protocol >= 2) {
char **rr = split(c->line + 4, 0, SPLIT_QUOTES, 0, 0);
if(rr && *rr)
- ((disorder_eclient_string_response *)op->completed)(op->v, *rr);
+ completed(op->v, NULL, *rr);
else
- protocol_error(c, op, c->rc, "%s: %s", c->ident, c->line);
+ /* TODO error message a is bit lame but generally indicates a server
+ * bug rather than anything the user can address */
+ completed(op->v, "error parsing response", NULL);
} else
- ((disorder_eclient_string_response *)op->completed)(op->v,
- c->line + 4);
+ completed(op->v, NULL, c->line + 4);
}
} else
- protocol_error(c, op, c->rc, "%s: %s", c->ident, c->line);
+ completed(op->v, errorstring(c), NULL);
}
/* for commands with a simple integer response */
static void integer_response_opcallback(disorder_eclient *c,
struct operation *op) {
+ disorder_eclient_integer_response *completed
+ = (disorder_eclient_integer_response *)op->completed;
+
D(("string_response_callback"));
if(c->rc / 100 == 2) {
- if(op->completed)
- ((disorder_eclient_integer_response *)op->completed)
- (op->v, strtol(c->line + 4, 0, 10));
+ long n;
+ int e;
+
+ e = xstrtol(&n, c->line + 4, 0, 10);
+ if(e)
+ completed(op->v, strerror(e), 0);
+ else
+ completed(op->v, 0, n);
} else
- protocol_error(c, op, c->rc, "%s: %s", c->ident, c->line);
+ completed(op->v, errorstring(c), 0);
}
/* for commands with no response */
static void no_response_opcallback(disorder_eclient *c,
struct operation *op) {
+ disorder_eclient_no_response *completed
+ = (disorder_eclient_no_response *)op->completed;
+
D(("no_response_callback"));
- if(c->rc / 100 == 2) {
- if(op->completed)
- ((disorder_eclient_no_response *)op->completed)(op->v);
- } else
- protocol_error(c, op, c->rc, "%s: %s", c->ident, c->line);
+ if(c->rc / 100 == 2)
+ completed(op->v, NULL);
+ else
+ completed(op->v, errorstring(c));
}
/* error callback for queue_unmarshall */
void *u) {
struct operation *op = u;
+ /* TODO don't use protocol_error here */
protocol_error(op->client, op, -1, "error parsing queue entry: %s", msg);
}
/* for commands that expect a queue dump */
static void queue_response_opcallback(disorder_eclient *c,
struct operation *op) {
+ disorder_eclient_queue_response *const completed
+ = (disorder_eclient_queue_response *)op->completed;
int n;
+ int parse_failed = 0;
struct queue_entry *q, *qh = 0, **qtail = &qh, *qlast = 0;
D(("queue_response_callback"));
for(n = 0; n < c->vec.nvec; ++n) {
q = xmalloc(sizeof *q);
D(("queue_unmarshall %s", c->vec.vec[n]));
- if(!queue_unmarshall(q, c->vec.vec[n], eclient_queue_error, op)) {
+ if(!queue_unmarshall(q, c->vec.vec[n], NULL, op)) {
q->prev = qlast;
*qtail = q;
qtail = &q->next;
qlast = q;
- }
+ } else
+ parse_failed = 1;
}
- if(op->completed)
- ((disorder_eclient_queue_response *)op->completed)(op->v, qh);
+ /* Currently we pass the partial queue to the callback along with the
+ * error. This might not be very useful in practice... */
+ if(parse_failed)
+ completed(op->v, "cannot parse result", qh);
+ else
+ completed(op->v, 0, qh);
} else
- protocol_error(c, op, c->rc, "%s: %s", c->ident, c->line);
+ completed(op->v, errorstring(c), 0);
}
/* for 'playing' */
static void playing_response_opcallback(disorder_eclient *c,
struct operation *op) {
+ disorder_eclient_queue_response *const completed
+ = (disorder_eclient_queue_response *)op->completed;
struct queue_entry *q;
D(("playing_response_callback"));
switch(c->rc % 10) {
case 2:
if(queue_unmarshall(q = xmalloc(sizeof *q), c->line + 4,
- eclient_queue_error, c))
- return;
+ NULL, c))
+ completed(op->v, "cannot parse result", 0);
+ else
+ completed(op->v, 0, q);
break;
case 9:
- q = 0;
+ completed(op->v, 0, 0);
break;
default:
- protocol_error(c, op, c->rc, "%s: %s", c->ident, c->line);
- return;
+ completed(op->v, errorstring(c), 0);
+ break;
}
- if(op->completed)
- ((disorder_eclient_queue_response *)op->completed)(op->v, q);
} else
- protocol_error(c, op, c->rc, "%s: %s", c->ident, c->line);
+ completed(op->v, errorstring(c), 0);
}
/* for commands that expect a list of some sort */
static void list_response_opcallback(disorder_eclient *c,
struct operation *op) {
+ disorder_eclient_list_response *const completed =
+ (disorder_eclient_list_response *)op->completed;
+
D(("list_response_callback"));
- if(c->rc / 100 == 2) {
- if(op->completed)
- ((disorder_eclient_list_response *)op->completed)(op->v,
- c->vec.nvec,
- c->vec.vec);
- } else
- protocol_error(c, op, c->rc, "%s: %s", c->ident, c->line);
+ if(c->rc / 100 == 2)
+ completed(op->v, NULL, c->vec.nvec, c->vec.vec);
+ else
+ completed(op->v, errorstring(c), 0, 0);
}
/* for volume */
static void volume_response_opcallback(disorder_eclient *c,
struct operation *op) {
+ disorder_eclient_volume_response *completed
+ = (disorder_eclient_volume_response *)op->completed;
int l, r;
D(("volume_response_callback"));
if(c->rc / 100 == 2) {
if(op->completed) {
if(sscanf(c->line + 4, "%d %d", &l, &r) != 2 || l < 0 || r < 0)
- protocol_error(c, op, -1, "%s: invalid volume response: %s",
- c->ident, c->line);
+ completed(op->v, "cannot parse volume response", 0, 0);
else
- ((disorder_eclient_volume_response *)op->completed)(op->v, l, r);
+ completed(op->v, 0, l, r);
}
} else
- protocol_error(c, op, c->rc, "%s: %s", c->ident, c->line);
+ completed(op->v, errorstring(c), 0, 0);
}
static int simple(disorder_eclient *c,
static void rtp_response_opcallback(disorder_eclient *c,
struct operation *op) {
+ disorder_eclient_list_response *const completed =
+ (disorder_eclient_list_response *)op->completed;
D(("rtp_response_opcallback"));
if(c->rc / 100 == 2) {
- if(op->completed) {
- int nvec;
- char **vec = split(c->line + 4, &nvec, SPLIT_QUOTES, 0, 0);
+ int nvec;
+ char **vec = split(c->line + 4, &nvec, SPLIT_QUOTES, 0, 0);
- ((disorder_eclient_list_response *)op->completed)(op->v, nvec, vec);
- }
+ if(vec)
+ completed(op->v, NULL, nvec, vec);
+ else
+ completed(op->v, "error parsing response", 0, 0);
} else
- protocol_error(c, op, c->rc, "%s: %s", c->ident, c->line);
+ completed(op->v, errorstring(c), 0, 0);
}
/** @brief Determine the RTP target address
"rtp-address", (char *)0);
}
+/** @brief Get the list of users
+ * @param c Client
+ * @param completed Called with list of users
+ * @param v Passed to @p completed
+ *
+ * The user list is not sorted in any particular order.
+ */
+int disorder_eclient_users(disorder_eclient *c,
+ disorder_eclient_list_response *completed,
+ void *v) {
+ return simple(c, list_response_opcallback, (void (*)())completed, v,
+ "users", (char *)0);
+}
+
+/** @brief Delete a user
+ * @param c Client
+ * @param completed Called on completion
+ * @param user User to delete
+ * @param v Passed to @p completed
+ */
+int disorder_eclient_deluser(disorder_eclient *c,
+ disorder_eclient_no_response *completed,
+ const char *user,
+ void *v) {
+ return simple(c, no_response_opcallback, (void (*)())completed, v,
+ "deluser", user, (char *)0);
+}
+
+/** @brief Get a user property
+ * @param c Client
+ * @param completed Called on completion
+ * @param user User to look up
+ * @param property Property to look up
+ * @param v Passed to @p completed
+ */
+int disorder_eclient_userinfo(disorder_eclient *c,
+ disorder_eclient_string_response *completed,
+ const char *user,
+ const char *property,
+ void *v) {
+ return simple(c, string_response_opcallback, (void (*)())completed, v,
+ "userinfo", user, property, (char *)0);
+}
+
+/** @brief Modify a user property
+ * @param c Client
+ * @param completed Called on completion
+ * @param user User to modify
+ * @param property Property to modify
+ * @param value New property value
+ * @param v Passed to @p completed
+ */
+int disorder_eclient_edituser(disorder_eclient *c,
+ disorder_eclient_no_response *completed,
+ const char *user,
+ const char *property,
+ const char *value,
+ void *v) {
+ return simple(c, no_response_opcallback, (void (*)())completed, v,
+ "edituser", user, property, value, (char *)0);
+}
+
+/** @brief Create a new user
+ * @param c Client
+ * @param completed Called on completion
+ * @param user User to create
+ * @param password Initial password
+ * @param rights Initial rights or NULL
+ * @param v Passed to @p completed
+ */
+int disorder_eclient_adduser(disorder_eclient *c,
+ disorder_eclient_no_response *completed,
+ const char *user,
+ const char *password,
+ const char *rights,
+ void *v) {
+ return simple(c, no_response_opcallback, (void (*)())completed, v,
+ "adduser", user, password, rights, (char *)0);
+}
+
/* Log clients ***************************************************************/
/** @brief Monitor the server log
/* error callback for log line parsing */
static void logline_error(const char *msg, void *u) {
disorder_eclient *c = u;
+ /* TODO don't use protocol_error here */
protocol_error(c, c->ops, -1, "error parsing log line: %s", msg);
}
* reported */
if(sscanf(vec[0], "%"SCNxMAX, &when) != 1) {
/* probably the wrong side of a format change */
+ /* TODO don't use protocol_error here */
protocol_error(c, c->ops, -1, "invalid log timestamp '%s'", vec[0]);
return;
}
/* TODO: do something with the time */
- n = TABLE_FIND(logentry_handlers, struct logentry_handler, name, vec[1]);
+ n = TABLE_FIND(logentry_handlers, name, vec[1]);
if(n < 0) return; /* probably a future command */
vec += 2;
nvec -= 2;
~mdw / disorder / blobdiff