nasl_http2.h File Reference

#include "nasl_lex_ctxt.h"

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Functions
tree_cell *	nasl_http2_handle (lex_ctxt *)
	Creates a handle for http requests.
tree_cell *	nasl_http2_close_handle (lex_ctxt *)
	Close a handle for http requests previously initialized.
tree_cell *	nasl_http2_get_response_code (lex_ctxt *)
	Get the http response code after performing a HTTP request.
tree_cell *	nasl_http2_set_custom_header (lex_ctxt *)
	Set a custom header element in the header.
tree_cell *	nasl_http2_get (lex_ctxt *)
	Wrapper function for GET request. See _http2_req.
tree_cell *	nasl_http2_head (lex_ctxt *)
	Wrapper function for HEAD request. See _http2_req.
tree_cell *	nasl_http2_post (lex_ctxt *)
	Wrapper function for POST request. See _http2_req.
tree_cell *	nasl_http2_delete (lex_ctxt *)
	Wrapper function for DELETE request. See _http2_req.
tree_cell *	nasl_http2_put (lex_ctxt *)
	Wrapper function for PUT request. See _http2_req.

Function Documentation

nasl_http2_close_handle()

tree_cell * nasl_http2_close_handle

(

lex_ctxt *

lexic

)

Close a handle for http requests previously initialized.

NASL Function: http2_handle\n

NASL Named Parameters:\n

• handle The handle identifier for the handle to be closed

NASL Returns:\n O on success, -1 on error

Parameters

[in]

lexic

Lexical context of NASL interpreter.

Returns

The function returns a tree-cell with a integer. O on success, -1 on error.

Definition at line 129 of file nasl_http2.c.

{
  tree_cell *retc = NULL;
  int handle_id = get_int_var_by_num (lexic, 0, -1);
  unsigned int table_slot;
  int ret = 0;
 
  for (table_slot = 0; table_slot < MAX_HANDLES; table_slot++)
    {
      if (handle_table[table_slot]->handle_id == handle_id)
        {
          curl_easy_cleanup (handle_table[table_slot]->handle);
          handle_table[table_slot]->handle = NULL;
          handle_table[table_slot]->handle_id = 0;
          handle_table[table_slot] = NULL;
        }
      else
        {
          g_message ("%s: Unknown handle identifier %d", __func__, handle_id);
          ret = -1;
        }
    }
  retc = alloc_typed_cell (CONST_INT);
  retc->x.i_val = ret;
  return retc;
}

References alloc_typed_cell(), CONST_INT, get_int_var_by_num(), handle_table_s::handle, handle_table_s::handle_id, handle_table, TC::i_val, MAX_HANDLES, and TC::x.

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nasl_http2_delete()

tree_cell * nasl_http2_delete

(

lex_ctxt *

lexic

)

Wrapper function for DELETE request. See _http2_req.

Definition at line 549 of file nasl_http2.c.

{
  return _http2_req (lexic, DELETE);
}

References _http2_req(), and DELETE.

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nasl_http2_get()

tree_cell * nasl_http2_get

(

lex_ctxt *

lexic

)

Wrapper function for GET request. See _http2_req.

Definition at line 525 of file nasl_http2.c.

{
  return _http2_req (lexic, GET);
}

References _http2_req(), and GET.

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nasl_http2_get_response_code()

tree_cell * nasl_http2_get_response_code

(

lex_ctxt *

lexic

)

Get the http response code after performing a HTTP request.

NASL Named Parameters:\n

• handle The handle identifier

NASL Returns:\n http code or 0 if not set. NULL on error

Parameters

[in]

lexic

Lexical context of NASL interpreter.

Returns

On success the function returns a tree-cell with and integer representing the http code response. Null on error.

Definition at line 436 of file nasl_http2.c.

{
  tree_cell *retc = NULL;
  unsigned int table_slot;
  int handle_id = get_int_var_by_name (lexic, "handle", -1);
 
  if (handle_id < 0)
    {
      nasl_perror (lexic,
                   "Error : http2_* functions have the following syntax :\n");
      nasl_perror (lexic, "http_*(handle: <handle>\n");
      return NULL;
    }
 
  for (table_slot = 0; table_slot < MAX_HANDLES; table_slot++)
    {
      if (handle_table[table_slot]->handle_id == handle_id)
        break;
      else
        {
          g_message ("%s: Unknown handle identifier %d", __func__, handle_id);
          return NULL;
        }
    }
 
  retc = alloc_typed_cell (CONST_INT);
  retc->x.i_val = handle_table[table_slot]->http_code;
  return retc;
}

References alloc_typed_cell(), CONST_INT, get_int_var_by_name(), handle_table, TC::i_val, MAX_HANDLES, nasl_perror(), and TC::x.

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nasl_http2_handle()

tree_cell * nasl_http2_handle

(

lex_ctxt *

lexic

)

Creates a handle for http requests.

NASL Function: http2_handle\n

NASL Returns:\n Handle identifier. Null on error.

Parameters

[in]

lexic

Lexical context of NASL interpreter.

Returns

On success the function returns a tree-cell with the handle identifier. Null on error.

Definition at line 84 of file nasl_http2.c.

{
  (void) lexic;
  tree_cell *retc = NULL;
  CURL *handle = curl_easy_init ();
  unsigned int table_slot;
 
  if (!handle)
    return NULL;
 
  for (table_slot = 0; table_slot < MAX_HANDLES; table_slot++)
    if (!handle_table[table_slot] || !handle_table[table_slot]->handle_id)
      break;
 
  if (!(table_slot < MAX_HANDLES))
    {
      g_message ("%s: No space left in HTTP2 handle table", __func__);
      curl_easy_cleanup (handle);
      return NULL;
    }
 
  handle_table[table_slot] = g_malloc0 (sizeof (struct handle_table_s));
  handle_table[table_slot]->handle = handle;
  handle_table[table_slot]->handle_id = next_handle_id ();
 
  retc = alloc_typed_cell (CONST_INT);
  retc->x.i_val = handle_table[table_slot]->handle_id;
  return retc;
}

References alloc_typed_cell(), CONST_INT, handle_table_s::handle, handle_table_s::handle_id, handle_table, TC::i_val, MAX_HANDLES, next_handle_id(), and TC::x.

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nasl_http2_head()

tree_cell * nasl_http2_head

(

lex_ctxt *

lexic

)

Wrapper function for HEAD request. See _http2_req.

Definition at line 533 of file nasl_http2.c.

{
  return _http2_req (lexic, HEAD);
}

References _http2_req(), and HEAD.

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nasl_http2_post()

tree_cell * nasl_http2_post

(

lex_ctxt *

lexic

)

Wrapper function for POST request. See _http2_req.

Definition at line 541 of file nasl_http2.c.

{
  return _http2_req (lexic, POST);
}

References _http2_req(), and POST.

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nasl_http2_put()

tree_cell * nasl_http2_put

(

lex_ctxt *

lexic

)

Wrapper function for PUT request. See _http2_req.

Definition at line 557 of file nasl_http2.c.

{
  return _http2_req (lexic, PUT);
}

References _http2_req(), and PUT.

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nasl_http2_set_custom_header()

tree_cell * nasl_http2_set_custom_header

(

lex_ctxt *

lexic

)

Set a custom header element in the header.

NASL Named Parameters:\n

• handle The handle identifier
• header_item A string to add to the header

NASL Returns:\n 0 on success. NULL on error

Parameters

[in]

lexic

Lexical context of NASL interpreter.

Returns

On success the function returns a tree-cell integer 0 on success. Null on error.

Definition at line 482 of file nasl_http2.c.

{
  tree_cell *retc = NULL;
  struct curl_slist *customheader = NULL;
  unsigned int table_slot;
  CURL *handle;
  int handle_id = get_int_var_by_name (lexic, "handle", -1);
  char *headeritem = get_str_var_by_name (lexic, "header_item");
 
  if (handle_id < 0 || headeritem == NULL)
    {
      nasl_perror (lexic,
                   "Error : http2_* functions have the following syntax :\n");
      nasl_perror (lexic,
                   "http_*(handle: <handle>, header_item:<header_item>\n");
      return NULL;
    }
 
  for (table_slot = 0; table_slot < MAX_HANDLES; table_slot++)
    {
      if (handle_table[table_slot]->handle_id == handle_id)
        break;
      else
        {
          g_message ("%s: Unknown handle identifier %d", __func__, handle_id);
          return NULL;
        }
    }
  handle = handle_table[table_slot]->handle;
 
  // SET Content type
  customheader = curl_slist_append (customheader, headeritem);
  curl_easy_setopt (handle, CURLOPT_HTTPHEADER, customheader);
 
  retc = alloc_typed_cell (CONST_INT);
  retc->x.i_val = 0;
 
  return retc;
}

References alloc_typed_cell(), CONST_INT, get_int_var_by_name(), get_str_var_by_name(), handle_table, TC::i_val, MAX_HANDLES, nasl_perror(), and TC::x.

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