mirror of
https://github.com/falk-werner/webfuse
synced 2024-10-27 20:34:10 +00:00
87f34fa768
* moves server into session * renames jsonrpc server to jsonrpc proxy * moves server into session * renames jsonrpc server to jsonrpc proxy * adds json rpc server * removes obsolete proxy from protocol * changes interface of jsonrpc_proxy_onresult to accept previously parsed messages * adds infrastructure to process incoming requests; fixes invalid read of ill formatted responses * adds description of authentication request * adds authentication request * adds userdb for authentication purposes * removes debug code: console.log() * fixes cmake build error (missing openssl symbols) * fixes typo * replaces ASCII art by UML diagram * renames BAD_NOACCESS to BAD_ACCESS_DENIED * fixes style * adds docu of authentication * ignored false positives of flawfinder * fixes style issues * fixes javascript style issues
103 lines
2.3 KiB
C
103 lines
2.3 KiB
C
#include "webfuse/adapter/impl/operations.h"
|
|
|
|
#include <errno.h>
|
|
#include <string.h>
|
|
#include <limits.h>
|
|
#include <jansson.h>
|
|
#include <libwebsockets.h>
|
|
|
|
#include "webfuse/adapter/impl/jsonrpc/proxy.h"
|
|
|
|
#define WF_MAX_READ_LENGTH 4096
|
|
|
|
static char * wf_impl_fill_buffer(
|
|
char const * data,
|
|
char const * format,
|
|
size_t count,
|
|
wf_status * status)
|
|
{
|
|
*status = WF_GOOD;
|
|
char * buffer = malloc(count + 1);
|
|
|
|
if ((NULL != buffer) && (0 < count))
|
|
{
|
|
if (0 == strcmp("identity", format))
|
|
{
|
|
memcpy(buffer, data, count); /* Flawfinder: ignore */
|
|
}
|
|
else if (0 == strcmp("base64", format))
|
|
{
|
|
lws_b64_decode_string(data, buffer, count + 1);
|
|
}
|
|
else
|
|
{
|
|
*status = WF_BAD;
|
|
}
|
|
}
|
|
|
|
return buffer;
|
|
}
|
|
|
|
static void wf_impl_operation_read_finished(void * user_data, wf_status status, json_t const * data)
|
|
{
|
|
fuse_req_t request = user_data;
|
|
|
|
char * buffer = NULL;
|
|
size_t length = 0;
|
|
if (NULL != data)
|
|
{
|
|
json_t * data_holder = json_object_get(data, "data");
|
|
json_t * format_holder = json_object_get(data, "format");
|
|
json_t * count_holder = json_object_get(data, "count");
|
|
|
|
if (json_is_string(data_holder) &&
|
|
json_is_string(format_holder) &&
|
|
json_is_integer(count_holder))
|
|
{
|
|
char const * const data = json_string_value(data_holder);
|
|
char const * const format = json_string_value(format_holder);
|
|
length = (size_t) json_integer_value(count_holder);
|
|
|
|
buffer = wf_impl_fill_buffer(data, format, length, &status);
|
|
}
|
|
else
|
|
{
|
|
status = WF_BAD_FORMAT;
|
|
}
|
|
}
|
|
|
|
if (WF_GOOD == status)
|
|
{
|
|
fuse_reply_buf(request, buffer, length);
|
|
}
|
|
else
|
|
{
|
|
fuse_reply_err(request, ENOENT);
|
|
}
|
|
|
|
free(buffer);
|
|
|
|
}
|
|
|
|
void wf_impl_operation_read(
|
|
fuse_req_t request,
|
|
fuse_ino_t inode,
|
|
size_t size,
|
|
off_t offset,
|
|
struct fuse_file_info * file_info)
|
|
{
|
|
struct wf_impl_operations_context * user_data = fuse_req_userdata(request);
|
|
struct wf_impl_jsonrpc_proxy * rpc = wf_impl_operations_context_get_proxy(user_data, inode);
|
|
|
|
if (NULL != rpc)
|
|
{
|
|
int const length = (size <= WF_MAX_READ_LENGTH) ? (int) size : WF_MAX_READ_LENGTH;
|
|
int handle = (file_info->fh & INT_MAX);
|
|
wf_impl_jsonrpc_proxy_invoke(rpc, &wf_impl_operation_read_finished, request, "read", "iiii", inode, handle, (int) offset, length);
|
|
}
|
|
else
|
|
{
|
|
fuse_reply_err(request, ENOENT);
|
|
}
|
|
}
|