efl/legacy/ecore/src/lib/ecore_dbus/ecore_dbus_address.c

362 lines
7.3 KiB
C

/*
* vim:ts=8:sw=3:sts=8:noexpandtab:cino=>5n-3f0^-2{2
*/
#include "config.h"
#include "ecore_private.h"
#include "Ecore_DBus.h"
#include "ecore_dbus_private.h"
#include <string.h>
#include <stdlib.h>
#include <stdio.h>
#include <ctype.h>
static void _ecore_dbus_address_list_free_cb(void *data);
static int _ecore_dbus_address_value_char_optional_encode(char c);
static char * _ecore_dbus_address_value_decode(const char *value);
static char * _ecore_dbus_address_value_encode(const char *value);
static void
_ecore_dbus_address_list_free_cb(void *data)
{
if (data) free(data);
}
Ecore_DBus_Address *
ecore_dbus_address_new()
{
Ecore_DBus_Address *a;
a = calloc(1, sizeof(Ecore_DBus_Address));
if (!a) return NULL;
a->keys = ecore_list_new();
ecore_list_set_free_cb(a->keys, _ecore_dbus_address_list_free_cb);
a->vals = ecore_list_new();
ecore_list_set_free_cb(a->vals, _ecore_dbus_address_list_free_cb);
return a;
}
void
ecore_dbus_address_free(Ecore_DBus_Address *address)
{
if (!address) return;
ecore_list_destroy(address->keys);
ecore_list_destroy(address->vals);
if (address->transport) free(address->transport);
free(address);
}
/**
* Parse an address into an array of Ecore_DBus_Address structs
*/
Ecore_List *
ecore_dbus_address_parse(const char *address)
{
Ecore_List *alist = NULL;
Ecore_DBus_Address *a = NULL;
char *addcpy;
char *p;
addcpy = strdup(address);
p = addcpy;
char *start = NULL;
char *transport = p;
char *key = NULL;
char *val = NULL;
int error = 0;
alist = ecore_list_new();
ecore_list_set_free_cb(alist, ECORE_FREE_CB(ecore_dbus_address_free));
while(1)
{
if (!a)
{
start = p;
a = ecore_dbus_address_new();
if (!a) { error = 1; break; }
}
if (!*p || *p == ';' || *p == ',')
{
/* append value */
char sep = *p;
if (!val)
{
if (p != start) error = 1;
break;
}
*p = '\0';
ecore_list_append(a->vals, _ecore_dbus_address_value_decode(val));
val = NULL;
if (sep == ',')
{
key = p + 1;
}
else
{
/* append address to list */
ecore_list_append(alist, a);
a = NULL;
if (!sep) break; /* end of string */
transport = p + 1;
}
}
else if (*p == '=')
{
/* append key */
if (!key) { error = 1; break; }
*p = '\0';
ecore_list_append(a->keys, strdup(key));
key = NULL;
val = p + 1;
}
else if (*p == ':')
{
/* append transport */
if (!transport) { error = 1; break; }
*p = '\0';
a->transport = strdup(transport);
transport = NULL;
key = p + 1;
}
p++;
}
if (error)
{
ecore_list_destroy(alist);
alist = NULL;
}
free(addcpy);
return alist;
}
const char *
ecore_dbus_address_value_get(Ecore_DBus_Address *address, const char *key)
{
int i;
char *s;
if (!key) return NULL;
ecore_list_goto_first(address->keys);
i = 0;
while((s = ecore_list_next(address->keys)))
{
if (!strcmp(key, s))
{
return ecore_list_goto_index(address->vals, i);
}
i++;
}
return NULL;
}
EAPI char *
ecore_dbus_address_string(Ecore_DBus_Address *address)
{
char buf[PATH_MAX];
char *key, *val;
int left = PATH_MAX - 1; /* space left in the buffer, leaving room for a final null */
if (!address) return NULL;
snprintf(buf, PATH_MAX, "%s:", address->transport);
left -= strlen(address->transport) + 1;
ecore_list_goto_first(address->keys);
ecore_list_goto_first(address->vals);
while ((key = ecore_list_next(address->keys)) && (val = ecore_list_next(address->vals)))
{
char *encval;
strncat(buf, key, left);
left -= strlen(key);
strncat(buf, "=", left);
left -= 1;
encval = _ecore_dbus_address_value_encode(val);
strncat(buf, encval, left);
left -= strlen(encval);
free(encval);
}
return strdup(buf);
}
/**
* Connect to the first successful server in a list of addresses.
*/
EAPI Ecore_DBus_Server *
ecore_dbus_address_list_connect(Ecore_List *addrs, const void *data)
{
Ecore_DBus_Address *addr;
ecore_list_goto_first(addrs);
/* try each listed address in turn */
while ((addr = ecore_list_next(addrs)))
{
Ecore_DBus_Server *svr;
svr = ecore_dbus_address_connect(addr, data);
if (svr) return svr;
}
return NULL;
}
/**
* Connect to a server by its Ecore_DBus_Address
*/
EAPI Ecore_DBus_Server *
ecore_dbus_address_connect(Ecore_DBus_Address *addr, const void *data)
{
const char *name;
int type;
int port;
char *addr_string;
addr_string = ecore_dbus_address_string(addr);
printf("[ecore_dbus] connecting to address: %s\n", addr_string);
free(addr_string);
if (!strcmp(addr->transport, "unix"))
{
type = ECORE_CON_LOCAL_SYSTEM;
name = ecore_dbus_address_value_get(addr, "path");
if (!name)
{
name = ecore_dbus_address_value_get(addr, "abstract");
type = ECORE_CON_LOCAL_ABSTRACT;
}
if (!name) return NULL;
port = -1;
}
else if (!strcmp(addr->transport, "tcp"))
{
/* XXX implement (and verify transport name is actually 'tcp') */
return NULL;
}
else
{
return NULL;
}
return ecore_dbus_server_connect(type, name, port, data);
}
void
ecore_dbus_print_address_list(Ecore_List *addresses)
{
Ecore_DBus_Address *a;
ecore_list_goto_first(addresses);
while((a = ecore_list_next(addresses)))
{
char *k, *v;
printf("Transport: %s\n", a->transport);
ecore_list_goto_first(a->keys);
ecore_list_goto_first(a->vals);
k = ecore_list_next(a->keys);
v = ecore_list_next(a->vals);
while (k || v)
{
printf(" %s => %s\n", k, v);
k = ecore_list_next(a->keys);
v = ecore_list_next(a->vals);
}
}
}
static int
_ecore_dbus_address_value_char_optional_encode(char c)
{
/* addl optional chars (other than 0-9A-Za-z) */
static const char OPTIONAL_CHARS[] = {'_', '-', '/', '.', '\\'};
unsigned int i;
if (isascii(c) && (isalpha(c) || isdigit(c))) return 1;
for (i = 0; i < sizeof(OPTIONAL_CHARS); i++)
if (c == OPTIONAL_CHARS[i]) return 1;
return 0;
}
static char *
_ecore_dbus_address_value_encode(const char *value)
{
char *buf;
const char *p;
int i;
static const char hexdigits[16] = {
'0', '1', '2', '3', '4', '5', '6', '7', '8', '9',
'a', 'b', 'c', 'd', 'e', 'f'
};
if (!value) return NULL;
buf = malloc(3 * strlen(value) + 1);
p = value;
i = 0;
while (*p)
{
if (_ecore_dbus_address_value_char_optional_encode(*p))
buf[i++] = *p;
else
{
buf[i++] = '%';
buf[i++] = hexdigits[(*p >> 4)];
buf[i++] = hexdigits[(*p & 0xf)];
}
p++;
}
buf[i] = '\0';
return buf;
}
static char *
_ecore_dbus_address_value_decode(const char *value)
{
char *buf;
const char *p;
int i;
buf = malloc(strlen(value) + 1);
*buf = '\0';
p = value;
i = 0;
while (*p)
{
if (*p == '%')
{
char c = 0;
int j;
for (j = 0; j < 2; j++)
{
p++;
c = c << 4;
if ('0' <= *p && *p <= '9')
c |= *p - '0';
else if ('A' <= *p && *p <= 'F')
c |= 10 + *p - 'A';
else if ('a' <= *p && *p <= 'f') /* a-f */
c |= 10 + *p - 'a';
}
buf[i++] = c;
}
else
buf[i++] = *p;
p++;
}
buf[i] = '\0';
return buf;
}