static int is_dnsexit_server_rsp_ok(ddns_t *ctx, http_trans_t *p_tr, int infnr)
{
(void)ctx;
(void)infnr;
int rc;
if ((rc = is_http_status_code_ok(p_tr->status)) != 0)
return rc;
int code = -1;
char *tmp;
if ((tmp = strstr(p_tr->p_rsp_body, "\n")) != NULL)
sscanf(++tmp, "%d=", &code);
switch (code) {
case 0:
case 1:
return 0;
case 4:
case 11:
return RC_DYNDNS_RSP_RETRY_LATER;
default:
return RC_DYNDNS_RSP_NOTOK;
}
}
static RC_TYPE is_dnsexit_server_rsp_ok(DYN_DNS_CLIENT *p_self, HTTP_TRANSACTION *p_tr, int infnr)
{
(void)p_self;
(void)infnr;
RC_TYPE rc;
if ((rc = is_http_status_code_ok(p_tr->status)) != RC_OK)
return rc;
int code = -1;
char *tmp;
if ((tmp = strstr(p_tr->p_rsp_body, "\n")) != NULL)
sscanf(++tmp, "%d=", &code);
switch (code) {
case 0:
case 1:
return RC_OK;
case 4:
case 11:
return RC_DYNDNS_RSP_RETRY_LATER;
default:
return RC_DYNDNS_RSP_NOTOK;
}
}
/* Freedns afraid.org.specific response validator.
ok blabla and n.n.n.n
fail blabla and n.n.n.n
are the good answers. We search our own IP address in response and that's enough.
*/
static RC_TYPE is_freedns_server_rsp_ok(DYN_DNS_CLIENT *p_self, HTTP_TRANSACTION *p_tr, int infnr)
{
char *p_rsp = p_tr->p_rsp_body;
RC_TYPE rc;
if ((rc = is_http_status_code_ok(p_tr->status)) != RC_OK)
return rc;
if (strstr(p_rsp, p_self->info[infnr].my_ip_address.name) != NULL)
return RC_OK;
else
return RC_DYNDNS_RSP_NOTOK;
}
/* Freedns afraid.org.specific response validator.
ok blabla and n.n.n.n
fail blabla and n.n.n.n
are the good answers. We search our own IP address in response and that's enough.
*/
static int is_freedns_server_rsp_ok(ddns_t *ctx, http_trans_t *p_tr, int infnr)
{
char *p_rsp = p_tr->p_rsp_body;
int rc;
if ((rc = is_http_status_code_ok(p_tr->status)) != 0)
return rc;
if (strstr(p_rsp, ctx->info[infnr].my_ip_address.name) != NULL)
return 0;
else
return RC_DYNDNS_RSP_NOTOK;
}
/** generic http dns server ok parser
parses a given string. If found is ok,
Example : 'SUCCESS CODE='
*/
static int is_generic_server_rsp_ok(ddns_t *ctx, http_trans_t *p_tr, int infnr)
{
(void)ctx;
char *p_rsp = p_tr->p_rsp_body;
(void)infnr;
int rc;
if ((rc = is_http_status_code_ok(p_tr->status)) != 0)
return rc;
if (strstr(p_rsp, "OK") != NULL)
return 0;
else
return RC_DYNDNS_RSP_NOTOK;
}
/* HE ipv6 tunnelbroker specific response validator.
own IP address and 'already in use' are the good answers.
*/
static int is_he_ipv6_server_rsp_ok(ddns_t *ctx, http_trans_t *p_tr, int infnr)
{
char *p_rsp = p_tr->p_rsp_body;
int rc;
if ((rc = is_http_status_code_ok(p_tr->status)) != 0)
return rc;
if (strstr(p_rsp, ctx->info[infnr].my_ip_address.name) != NULL ||
strstr(p_rsp, "-ERROR: This tunnel is already associated with this IP address.")
!= NULL)
return 0;
else
return RC_DYNDNS_RSP_NOTOK;
}
/* HE ipv6 tunnelbroker specific response validator.
own IP address and 'already in use' are the good answers.
*/
static RC_TYPE is_he_ipv6_server_rsp_ok(DYN_DNS_CLIENT *p_self, HTTP_TRANSACTION *p_tr, int infnr)
{
char *p_rsp = p_tr->p_rsp_body;
RC_TYPE rc;
if ((rc = is_http_status_code_ok(p_tr->status)) != RC_OK)
return rc;
if (strstr(p_rsp, p_self->info[infnr].my_ip_address.name) != NULL ||
strstr(p_rsp, "already") != NULL)
// strstr(p_rsp, "-ERROR: This tunnel is already associated with this IP address.") != NULL)
return RC_OK;
else
return RC_DYNDNS_RSP_NOTOK;
}
/** generic http dns server ok parser
parses a given string. If found is ok,
Example : 'SUCCESS CODE='
*/
static RC_TYPE is_generic_server_rsp_ok(DYN_DNS_CLIENT *p_self, HTTP_TRANSACTION *p_tr, int infnr)
{
(void)p_self;
char *p_rsp = p_tr->p_rsp_body;
(void)infnr;
RC_TYPE rc;
if ((rc = is_http_status_code_ok(p_tr->status)) != RC_OK)
return rc;
if (strstr(p_rsp, "OK") != NULL)
return RC_OK;
else
return RC_DYNDNS_RSP_NOTOK;
}
static RC_TYPE is_sitelutions_server_rsp_ok(DYN_DNS_CLIENT *p_self, HTTP_TRANSACTION *p_tr, int infnr)
{
(void)p_self;
char *p_rsp = p_tr->p_rsp_body;
(void)infnr;
RC_TYPE rc;
if ((rc = is_http_status_code_ok(p_tr->status)) != RC_OK)
return rc;
if (strstr(p_rsp, "success") != NULL)
return RC_OK;
else if (strstr(p_rsp, "dberror") != NULL)
return RC_DYNDNS_RSP_RETRY_LATER;
else
return RC_DYNDNS_RSP_NOTOK;
}
/* DynDNS org.specific response validator.
'good' or 'nochg' are the good answers,
*/
static int is_dyndns_server_rsp_ok(ddns_t *ctx, http_trans_t *p_tr, int infnr)
{
(void)ctx;
char *p_rsp = p_tr->p_rsp_body;
(void)infnr;
int rc;
if ((rc = is_http_status_code_ok(p_tr->status)) != 0)
return rc;
if (strstr(p_rsp, "good") != NULL || strstr(p_rsp, "nochg") != NULL)
return 0;
else if (strstr(p_rsp, "dnserr") != NULL || strstr(p_rsp, "911") != NULL)
return RC_DYNDNS_RSP_RETRY_LATER;
else
return RC_DYNDNS_RSP_NOTOK;
}
/**
NOERROR is the OK code here
*/
static int is_easydns_server_rsp_ok(ddns_t *ctx, http_trans_t *p_tr, int infnr)
{
(void)ctx;
char *p_rsp = p_tr->p_rsp_body;
(void)infnr;
int rc;
if ((rc = is_http_status_code_ok(p_tr->status)) != 0)
return rc;
if (strstr(p_rsp, "NOERROR") != NULL)
return 0;
else if (strstr(p_rsp, "TOOSOON") != NULL)
return RC_DYNDNS_RSP_RETRY_LATER;
else
return RC_DYNDNS_RSP_NOTOK;
}
static int is_sitelutions_server_rsp_ok(ddns_t *ctx, http_trans_t *p_tr, int infnr)
{
(void)ctx;
char *p_rsp = p_tr->p_rsp_body;
(void)infnr;
int rc;
if ((rc = is_http_status_code_ok(p_tr->status)) != 0)
return rc;
if (strstr(p_rsp, "success") != NULL)
return 0;
else if (strstr(p_rsp, "dberror") != NULL)
return RC_DYNDNS_RSP_RETRY_LATER;
else
return RC_DYNDNS_RSP_NOTOK;
}
/* DynDNS org.specific response validator.
'good' or 'nochg' are the good answers,
*/
static RC_TYPE is_dyndns_server_rsp_ok(DYN_DNS_CLIENT *p_self, HTTP_TRANSACTION *p_tr, int infnr)
{
(void)p_self;
char *p_rsp = p_tr->p_rsp_body;
(void)infnr;
RC_TYPE rc;
if ((rc = is_http_status_code_ok(p_tr->status)) != RC_OK)
return rc;
if (strstr(p_rsp, "good") != NULL ||
strstr(p_rsp, "nochg") != NULL)
return RC_OK;
else if (strstr(p_rsp, "dnserr") != NULL ||
strstr(p_rsp, "911") != NULL)
return RC_DYNDNS_RSP_RETRY_LATER;
else
return RC_DYNDNS_RSP_NOTOK;
}
/**
the OK codes are:
CODE=200, 201
CODE=707, for duplicated updates
*/
static RC_TYPE is_zoneedit_server_rsp_ok(DYN_DNS_CLIENT *p_self, HTTP_TRANSACTION *p_tr, int infnr)
{
(void)p_self;
(void)infnr;
RC_TYPE rc;
if ((rc = is_http_status_code_ok(p_tr->status)) != RC_OK)
return rc;
int code = -1;
sscanf(p_tr->p_rsp_body, "%*s CODE=\"%d\" ", &code);
switch (code) {
case 200:
case 201:
case 707:
// is 707 really ok??
return RC_OK;
default:
return RC_DYNDNS_RSP_NOTOK;
}
}
/**
the OK codes are:
CODE=200, 201
CODE=707, for duplicated updates
*/
static int is_zoneedit_server_rsp_ok(ddns_t *ctx, http_trans_t *p_tr, int infnr)
{
(void)ctx;
(void)infnr;
int rc;
if ((rc = is_http_status_code_ok(p_tr->status)) != 0)
return rc;
int code = -1;
sscanf(p_tr->p_rsp_body, "%*s CODE=\"%d\" ", &code);
switch (code) {
case 200:
case 201:
case 707:
// is 707 really ok??
return 0;
default:
return RC_DYNDNS_RSP_NOTOK;
}
}
/* TZO specific response validator. */
static RC_TYPE is_tzo_server_rsp_ok(DYN_DNS_CLIENT *p_self, HTTP_TRANSACTION *p_tr, int infnr)
{
(void)p_self;
(void)infnr;
RC_TYPE rc;
if ((rc = is_http_status_code_ok(p_tr->status)) != RC_OK)
return rc;
int code = -1;
sscanf(p_tr->p_rsp_body, "%d ", &code);
switch (code) {
case 200:
case 304:
return RC_OK;
case 414:
case 500:
return RC_DYNDNS_RSP_RETRY_LATER;
default:
return RC_DYNDNS_RSP_NOTOK;
}
}
/* TZO specific response validator. */
static int is_tzo_server_rsp_ok(ddns_t *ctx, http_trans_t *p_tr, int infnr)
{
(void)ctx;
(void)infnr;
int rc;
if ((rc = is_http_status_code_ok(p_tr->status)) != 0)
return rc;
int code = -1;
sscanf(p_tr->p_rsp_body, "%d ", &code);
switch (code) {
case 200:
case 304:
return 0;
case 414:
case 500:
return RC_DYNDNS_RSP_RETRY_LATER;
default:
return RC_DYNDNS_RSP_NOTOK;
}
}
static int get_req_for_freedns_server(ddns_t *ctx, int infcnt, int alcnt)
{
int rc = 0, rc2;
http_client_t client;
http_trans_t trans;
char buffer[256];
unsigned char digestbuf[SHA1_DIGEST_BYTES];
char digeststr[SHA1_DIGEST_BYTES * 2 + 1];
int i;
char *buf, *tmp, *line;
char host[256], updateurl[256];
char *hash = NULL;
if (ctx == NULL) {
/* 0 == "No characters written" */
return 0;
}
// I know it's ugly, http client needs redesign.
do {
if ((rc = http_client_construct(&client)) != 0)
break;
http_client_set_port(&client, ctx->info[infcnt].dyndns_server_name.port);
http_client_set_remote_name(&client, ctx->info[infcnt].dyndns_server_name.name);
http_client_set_bind_iface(&client, ctx->bind_interface);
if ((rc = http_client_init(&client, "Sending update URL query")) != 0)
break;
snprintf(buffer, sizeof(buffer), "%s|%s",
ctx->info[infcnt].creds.username, ctx->info[infcnt].creds.password);
sha1((unsigned char *)buffer, strlen(buffer), digestbuf);
for (i = 0; i < SHA1_DIGEST_BYTES; i++)
sprintf(&digeststr[i * 2], "%02x", digestbuf[i]);
snprintf(buffer, sizeof(buffer), "/api/?action=getdyndns&sha=%s", digeststr);
trans.req_len = sprintf(ctx->request_buf, GENERIC_HTTP_REQUEST,
buffer, ctx->info[infcnt].dyndns_server_name.name);
trans.p_req = (char *)ctx->request_buf;
trans.p_rsp = (char *)ctx->work_buf;
trans.max_rsp_len = ctx->work_buflen - 1; /* Save place for a \0 at the end */
trans.rsp_len = 0;
rc = http_client_transaction(&client, &trans);
trans.p_rsp[trans.rsp_len] = 0;
rc2 = http_client_shutdown(&client);
http_client_destruct(&client, 1);
if (rc != 0 || rc2 != 0)
break;
if ((rc = is_http_status_code_ok(trans.status)) != 0)
break;
tmp = buf = strdup(trans.p_rsp_body);
for (line = strsep(&tmp, "\n"); line; line = strsep(&tmp, "\n")) {
if (*line &&
sscanf(line, "%255[^|\r\n]|%*[^|\r\n]|%255[^|\r\n]",
host, updateurl) == 2
&& !strcmp(host, ctx->info[infcnt].alias[alcnt].names.name)) {
hash = strstr(updateurl, "?");
break;
}
}
free(buf);
if (!hash)
rc = RC_DYNDNS_RSP_NOTOK;
}
while (0);
if (rc != 0) {
logit(LOG_INFO, "Update URL query failed");
return 0;
}
return sprintf(ctx->request_buf, FREEDNS_UPDATE_IP_REQUEST,
ctx->info[infcnt].dyndns_server_url,
hash, ctx->info[infcnt].my_ip_address.name, ctx->info[infcnt].dyndns_server_name.name);
}
static int get_req_for_freedns_server(DYN_DNS_CLIENT *p_self, int infcnt, int alcnt)
{
RC_TYPE rc = RC_OK, rc2;
HTTP_CLIENT http_to_dyndns;
HTTP_TRANSACTION http_tr;
char buffer[256];
unsigned char digestbuf[SHA1_DIGEST_BYTES];
char digeststr[SHA1_DIGEST_BYTES*2+1];
int i;
char *buf, *tmp, *line;
char host[256], updateurl[256];
char *hash = NULL;
if (p_self == NULL)
{
/* 0 == "No characters written" */
return 0;
}
// I know it's ugly, http client needs redesign.
do
{
if ((rc = http_client_construct(&http_to_dyndns)) != RC_OK)
break;
http_client_set_port(&http_to_dyndns, p_self->info[infcnt].dyndns_server_name.port);
http_client_set_remote_name(&http_to_dyndns, p_self->info[infcnt].dyndns_server_name.name);
http_client_set_bind_iface(&http_to_dyndns, p_self->bind_interface);
if ((rc = http_client_init(&http_to_dyndns, "Sending update URL query")) != RC_OK)
break;
snprintf(buffer, sizeof(buffer), "%s|%s",
p_self->info[infcnt].credentials.my_username,
p_self->info[infcnt].credentials.my_password);
sha1(buffer, strlen(buffer), digestbuf);
for (i = 0; i < SHA1_DIGEST_BYTES; i++)
sprintf(&digeststr[i*2], "%02x", digestbuf[i]);
snprintf(buffer, sizeof(buffer), "/api/?action=getdyndns&sha=%s", digeststr);
http_tr.req_len = sprintf(p_self->p_req_buffer, GENERIC_HTTP_REQUEST,
buffer, p_self->info[infcnt].dyndns_server_name.name);
http_tr.p_req = (char*) p_self->p_req_buffer;
http_tr.p_rsp = (char*) p_self->p_work_buffer;
http_tr.max_rsp_len = p_self->work_buffer_size - 1; /* Save place for a \0 at the end */
http_tr.rsp_len = 0;
rc = http_client_transaction(&http_to_dyndns, &http_tr);
http_tr.p_rsp[http_tr.rsp_len] = 0;
rc2 = http_client_shutdown(&http_to_dyndns);
http_client_destruct(&http_to_dyndns, 1);
if (rc != RC_OK || rc2 != RC_OK)
break;
if ((rc = is_http_status_code_ok(http_tr.status)) != RC_OK)
break;
tmp = buf = strdup(http_tr.p_rsp_body);
for (line = strsep(&tmp, "\n"); line; line = strsep(&tmp, "\n")) {
if (*line &&
sscanf(line, "%255[^|\r\n]|%*[^|\r\n]|%255[^|\r\n]", host, updateurl) == 2 &&
!strcmp(host, p_self->info[infcnt].alias_info[alcnt].names.name)) {
hash = strstr(updateurl, "?");
break;
}
}
free(buf);
if (!hash)
rc = RC_DYNDNS_RSP_NOTOK;
}
while (0);
if (rc != RC_OK)
{
logit(LOG_INFO, MODULE_TAG "Update URL query failed");
return 0;
}
return sprintf(p_self->p_req_buffer, FREEDNS_UPDATE_IP_REQUEST,
p_self->info[infcnt].dyndns_server_url,
hash,
p_self->info[infcnt].my_ip_address.name,
p_self->info[infcnt].dyndns_server_name.name);
}
