void xslt_transform(xmlDocPtr doc, const char *xslfilename, client_t *client)
{
xmlDocPtr res;
xsltStylesheetPtr cur;
xmlChar *string;
int len, problem = 0;
xmlSetGenericErrorFunc ("", log_parse_failure);
xsltSetGenericErrorFunc ("", log_parse_failure);
thread_mutex_lock(&xsltlock);
cur = xslt_get_stylesheet(xslfilename);
if (cur == NULL)
{
thread_mutex_unlock(&xsltlock);
ERROR1 ("problem reading stylesheet \"%s\"", xslfilename);
client_send_404 (client, "Could not parse XSLT file");
return;
}
res = xsltApplyStylesheet(cur, doc, NULL);
if (xsltSaveResultToString (&string, &len, res, cur) < 0)
problem = 1;
thread_mutex_unlock(&xsltlock);
if (problem == 0)
{
const char *http = "HTTP/1.0 200 OK\r\nContent-Type: text/html\r\nContent-Length: ";
int buf_len = strlen (http) + 20 + len;
if (string == NULL)
string = xmlStrdup ("");
client->respcode = 200;
client_set_queue (client, NULL);
client->refbuf = refbuf_new (buf_len);
len = snprintf (client->refbuf->data, buf_len, "%s%d\r\n\r\n%s", http, len, string);
client->refbuf->len = len;
fserve_add_client (client, NULL);
xmlFree (string);
}
else
{
WARN1 ("problem applying stylesheet \"%s\"", xslfilename);
client_send_404 (client, "XSLT problem");
}
xmlFreeDoc(res);
}
int xslt_transform (xmlDocPtr doc, const char *xslfilename, client_t *client)
{
xmlDocPtr res;
xsltStylesheetPtr cur;
int len;
refbuf_t *content = NULL;
char **params = NULL;
xmlSetGenericErrorFunc ("", log_parse_failure);
xsltSetGenericErrorFunc ("", log_parse_failure);
thread_mutex_lock(&xsltlock);
cur = xslt_get_stylesheet(xslfilename);
if (cur == NULL)
{
thread_mutex_unlock(&xsltlock);
ERROR1 ("problem reading stylesheet \"%s\"", xslfilename);
return client_send_404 (client, "Could not parse XSLT file");
}
if (client->parser->queryvars)
{
// annoying but we need to surround the args with ' when passing them in
int i, arg_count = client->parser->queryvars->length * 2;
avl_node *node = avl_get_first (client->parser->queryvars);
params = calloc (arg_count+1, sizeof (char *));
for (i = 0; node && i < arg_count; node = avl_get_next (node))
{
http_var_t *param = (http_var_t *)node->key;
char *tmp = util_url_escape (param->value);
params[i++] = param->name;
// use alloca for now, should really url esc into a supplied buffer
params[i] = (char*)alloca (strlen (tmp) + 3);
sprintf (params[i++], "\'%s\'", tmp);
free (tmp);
}
params[i] = NULL;
}
res = xsltApplyStylesheet (cur, doc, (const char **)params);
free (params);
if (res == NULL || xslt_SaveResultToBuf (&content, &len, res, cur) < 0)
{
thread_mutex_unlock (&xsltlock);
xmlFreeDoc (res);
WARN1 ("problem applying stylesheet \"%s\"", xslfilename);
return client_send_404 (client, "XSLT problem");
}
else
{
/* the 100 is to allow for the hardcoded headers */
refbuf_t *refbuf = refbuf_new (100);
const char *mediatype = NULL;
/* lets find out the content type to use */
if (cur->mediaType)
mediatype = (char *)cur->mediaType;
else
{
/* check method for the default, a missing method assumes xml */
if (cur->method && xmlStrcmp (cur->method, XMLSTR("html")) == 0)
mediatype = "text/html";
else
if (cur->method && xmlStrcmp (cur->method, XMLSTR("text")) == 0)
mediatype = "text/plain";
else
mediatype = "text/xml";
}
snprintf (refbuf->data, 100,
"HTTP/1.0 200 OK\r\nContent-Type: %s\r\nContent-Length: %d\r\n\r\n",
mediatype, len);
thread_mutex_unlock (&xsltlock);
client->respcode = 200;
client_set_queue (client, NULL);
client->refbuf = refbuf;
refbuf->len = strlen (refbuf->data);
refbuf->next = content;
}
xmlFreeDoc(res);
return fserve_setup_client (client);
}
void xslt_transform(xmlDocPtr doc, const char *xslfilename, client_t *client)
{
xmlDocPtr res;
xsltStylesheetPtr cur;
xmlChar *string;
int len, problem = 0;
const char *mediatype = NULL;
xmlSetGenericErrorFunc ("", log_parse_failure);
xsltSetGenericErrorFunc ("", log_parse_failure);
thread_mutex_lock(&xsltlock);
cur = xslt_get_stylesheet(xslfilename);
if (cur == NULL)
{
thread_mutex_unlock(&xsltlock);
ERROR1 ("problem reading stylesheet \"%s\"", xslfilename);
client_send_404 (client, "Could not parse XSLT file");
return;
}
res = xsltApplyStylesheet(cur, doc, NULL);
if (xsltSaveResultToString (&string, &len, res, cur) < 0)
problem = 1;
/* lets find out the content type to use */
if (cur->mediaType)
mediatype = (char *)cur->mediaType;
else
{
/* check method for the default, a missing method assumes xml */
if (cur->method && xmlStrcmp (cur->method, XMLSTR("html")) == 0)
mediatype = "text/html";
else
if (cur->method && xmlStrcmp (cur->method, XMLSTR("text")) == 0)
mediatype = "text/plain";
else
mediatype = "text/xml";
}
if (problem == 0)
{
/* the 100 is to allow for the hardcoded headers */
unsigned int full_len = strlen (mediatype) + len + 256;
refbuf_t *refbuf = refbuf_new (full_len);
ssize_t ret;
if (string == NULL)
string = xmlCharStrdup ("");
ret = util_http_build_header(refbuf->data, full_len, 0, 0, 200, NULL, mediatype, NULL, NULL);
snprintf (refbuf->data + ret, full_len - ret,
"Content-Length: %d\r\n\r\n%s",
len, string);
client->respcode = 200;
client_set_queue (client, NULL);
client->refbuf = refbuf;
refbuf->len = strlen (refbuf->data);
fserve_add_client (client, NULL);
xmlFree (string);
}
else
{
WARN1 ("problem applying stylesheet \"%s\"", xslfilename);
client_send_404 (client, "XSLT problem");
}
thread_mutex_unlock (&xsltlock);
xmlFreeDoc(res);
}
void xslt_transform(xmlDocPtr doc, const char *xslfilename, client_t *client)
{
xmlDocPtr res;
xsltStylesheetPtr cur;
xmlChar *string;
int len, problem = 0;
const char *mediatype = NULL;
const char *charset = NULL;
xmlSetGenericErrorFunc ("", log_parse_failure);
xsltSetGenericErrorFunc ("", log_parse_failure);
thread_mutex_lock(&xsltlock);
cur = xslt_get_stylesheet(xslfilename);
if (cur == NULL)
{
thread_mutex_unlock(&xsltlock);
ICECAST_LOG_ERROR("problem reading stylesheet \"%s\"", xslfilename);
client_send_404 (client, "Could not parse XSLT file");
return;
}
res = xsltApplyStylesheet(cur, doc, NULL);
if (xsltSaveResultToString (&string, &len, res, cur) < 0)
problem = 1;
/* lets find out the content type and character encoding to use */
if (cur->encoding)
charset = (char *)cur->encoding;
if (cur->mediaType)
mediatype = (char *)cur->mediaType;
else
{
/* check method for the default, a missing method assumes xml */
if (cur->method && xmlStrcmp (cur->method, XMLSTR("html")) == 0)
mediatype = "text/html";
else
if (cur->method && xmlStrcmp (cur->method, XMLSTR("text")) == 0)
mediatype = "text/plain";
else
mediatype = "text/xml";
}
if (problem == 0)
{
ssize_t ret;
int failed = 0;
refbuf_t *refbuf;
size_t full_len = strlen (mediatype) + len + 1024;
if (full_len < 4096)
full_len = 4096;
refbuf = refbuf_new (full_len);
if (string == NULL)
string = xmlCharStrdup ("");
ret = util_http_build_header(refbuf->data, full_len, 0, 0, 200, NULL, mediatype, charset, NULL, NULL);
if (ret == -1) {
ICECAST_LOG_ERROR("Dropping client as we can not build response headers.");
client_send_500(client, "Header generation failed.");
} else {
if ( full_len < (ret + len + 64) ) {
void *new_data;
full_len = ret + len + 64;
new_data = realloc(refbuf->data, full_len);
if (new_data) {
ICECAST_LOG_DEBUG("Client buffer reallocation succeeded.");
refbuf->data = new_data;
refbuf->len = full_len;
ret = util_http_build_header(refbuf->data, full_len, 0, 0, 200, NULL, mediatype, charset, NULL, NULL);
if (ret == -1) {
ICECAST_LOG_ERROR("Dropping client as we can not build response headers.");
client_send_500(client, "Header generation failed.");
failed = 1;
}
} else {
ICECAST_LOG_ERROR("Client buffer reallocation failed. Dropping client.");
client_send_500(client, "Buffer reallocation failed.");
failed = 1;
}
}
if (!failed) {
snprintf(refbuf->data + ret, full_len - ret, "Content-Length: %d\r\n\r\n%s", len, string);
client->respcode = 200;
client_set_queue (client, NULL);
client->refbuf = refbuf;
refbuf->len = strlen (refbuf->data);
fserve_add_client (client, NULL);
}
}
xmlFree (string);
}
else
{
ICECAST_LOG_WARN("problem applying stylesheet \"%s\"", xslfilename);
client_send_404 (client, "XSLT problem");
}
thread_mutex_unlock (&xsltlock);
xmlFreeDoc(res);
}
