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-rw-r--r--src/mint/taler-mint-httpd_parsing.c1137
1 files changed, 0 insertions, 1137 deletions
diff --git a/src/mint/taler-mint-httpd_parsing.c b/src/mint/taler-mint-httpd_parsing.c
deleted file mode 100644
index 365202905..000000000
--- a/src/mint/taler-mint-httpd_parsing.c
+++ /dev/null
@@ -1,1137 +0,0 @@
-/*
- This file is part of TALER
- Copyright (C) 2014, 2015 GNUnet e.V.
-
- TALER is free software; you can redistribute it and/or modify it under the
- terms of the GNU Affero General Public License as published by the Free Software
- Foundation; either version 3, or (at your option) any later version.
-
- TALER is distributed in the hope that it will be useful, but WITHOUT ANY
- WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
- A PARTICULAR PURPOSE. See the GNU Affero General Public License for more details.
-
- You should have received a copy of the GNU Affero General Public License along with
- TALER; see the file COPYING. If not, If not, see <http://www.gnu.org/licenses/>
-*/
-
-/**
- * @file taler-mint-httpd_parsing.c
- * @brief functions to parse incoming requests (MHD arguments and JSON snippets)
- * @author Florian Dold
- * @author Benedikt Mueller
- * @author Christian Grothoff
- */
-
-#include "platform.h"
-#include <gnunet/gnunet_util_lib.h>
-#include "taler-mint-httpd_parsing.h"
-#include "taler-mint-httpd_responses.h"
-
-
-/**
- * Initial size for POST request buffer.
- */
-#define REQUEST_BUFFER_INITIAL (2*1024)
-
-/**
- * Maximum POST request size.
- */
-#define REQUEST_BUFFER_MAX (1024*1024)
-
-
-/**
- * Buffer for POST requests.
- */
-struct Buffer
-{
- /**
- * Allocated memory
- */
- char *data;
-
- /**
- * Number of valid bytes in buffer.
- */
- size_t fill;
-
- /**
- * Number of allocated bytes in buffer.
- */
- size_t alloc;
-};
-
-
-/**
- * Initialize a buffer.
- *
- * @param buf the buffer to initialize
- * @param data the initial data
- * @param data_size size of the initial data
- * @param alloc_size size of the buffer
- * @param max_size maximum size that the buffer can grow to
- * @return a GNUnet result code
- */
-static int
-buffer_init (struct Buffer *buf,
- const void *data,
- size_t data_size,
- size_t alloc_size,
- size_t max_size)
-{
- if (data_size > max_size || alloc_size > max_size)
- return GNUNET_SYSERR;
- if (data_size > alloc_size)
- alloc_size = data_size;
- buf->data = GNUNET_malloc (alloc_size);
- memcpy (buf->data, data, data_size);
- return GNUNET_OK;
-}
-
-
-/**
- * Free the data in a buffer. Does *not* free
- * the buffer object itself.
- *
- * @param buf buffer to de-initialize
- */
-static void
-buffer_deinit (struct Buffer *buf)
-{
- GNUNET_free (buf->data);
- buf->data = NULL;
-}
-
-
-/**
- * Append data to a buffer, growing the buffer if necessary.
- *
- * @param buf the buffer to append to
- * @param data the data to append
- * @param data_size the size of @a data
- * @param max_size maximum size that the buffer can grow to
- * @return #GNUNET_OK on success,
- * #GNUNET_NO if the buffer can't accomodate for the new data
- */
-static int
-buffer_append (struct Buffer *buf,
- const void *data,
- size_t data_size,
- size_t max_size)
-{
- if (buf->fill + data_size > max_size)
- return GNUNET_NO;
- if (data_size + buf->fill > buf->alloc)
- {
- char *new_buf;
- size_t new_size = buf->alloc;
- while (new_size < buf->fill + data_size)
- new_size += 2;
- if (new_size > max_size)
- return GNUNET_NO;
- new_buf = GNUNET_malloc (new_size);
- memcpy (new_buf, buf->data, buf->fill);
- GNUNET_free (buf->data);
- buf->data = new_buf;
- buf->alloc = new_size;
- }
- memcpy (buf->data + buf->fill, data, data_size);
- buf->fill += data_size;
- return GNUNET_OK;
-}
-
-
-/**
- * Release all memory allocated for the variable-size fields in
- * the parser specification.
- *
- * @param spec specification to free
- * @param spec_len number of items in @a spec to look at
- */
-static void
-release_data (struct TMH_PARSE_FieldSpecification *spec,
- unsigned int spec_len)
-{
- unsigned int i;
-
- for (i=0; i < spec_len; i++)
- {
- switch (spec[i].command)
- {
- case TMH_PARSE_JNC_FIELD:
- GNUNET_break (0);
- return;
- case TMH_PARSE_JNC_INDEX:
- GNUNET_break (0);
- return;
- case TMH_PARSE_JNC_RET_DATA:
- break;
- case TMH_PARSE_JNC_RET_DATA_VAR:
- if (NULL != spec[i].destination)
- {
- GNUNET_free (* (void**) spec[i].destination);
- *(void**) spec[i].destination = NULL;
- *spec[i].destination_size_out = 0;
- }
- break;
- case TMH_PARSE_JNC_RET_TYPED_JSON:
- {
- json_t *json;
-
- json = *(json_t **) spec[i].destination;
- if (NULL != json)
- {
- json_decref (json);
- *(json_t**) spec[i].destination = NULL;
- }
- }
- break;
- case TMH_PARSE_JNC_RET_RSA_PUBLIC_KEY:
- {
- struct TALER_DenominationPublicKey *pk;
-
- pk = spec[i].destination;
- if (NULL != pk->rsa_public_key)
- {
- GNUNET_CRYPTO_rsa_public_key_free (pk->rsa_public_key);
- pk->rsa_public_key = NULL;
- }
- }
- break;
- case TMH_PARSE_JNC_RET_RSA_SIGNATURE:
- {
- struct TALER_DenominationSignature *sig;
-
- sig = spec[i].destination;
- if (NULL != sig->rsa_signature)
- {
- GNUNET_CRYPTO_rsa_signature_free (sig->rsa_signature);
- sig->rsa_signature = NULL;
- }
- }
- break;
- case TMH_PARSE_JNC_RET_AMOUNT:
- memset (spec[i].destination,
- 0,
- sizeof (struct TALER_Amount));
- break;
- case TMH_PARSE_JNC_RET_TIME_ABSOLUTE:
- break;
- case TMH_PARSE_JNC_RET_UINT64:
- break;
- }
- }
-}
-
-
-/**
- * Process a POST request containing a JSON object. This function
- * realizes an MHD POST processor that will (incrementally) process
- * JSON data uploaded to the HTTP server. It will store the required
- * state in the @a con_cls, which must be cleaned up using
- * #TMH_PARSE_post_cleanup_callback().
- *
- * @param connection the MHD connection
- * @param con_cls the closure (points to a `struct Buffer *`)
- * @param upload_data the POST data
- * @param upload_data_size number of bytes in @a upload_data
- * @param json the JSON object for a completed request
- * @return
- * #GNUNET_YES if json object was parsed or at least
- * may be parsed in the future (call again);
- * `*json` will be NULL if we need to be called again,
- * and non-NULL if we are done.
- * #GNUNET_NO is request incomplete or invalid
- * (error message was generated)
- * #GNUNET_SYSERR on internal error
- * (we could not even queue an error message,
- * close HTTP session with MHD_NO)
- */
-int
-TMH_PARSE_post_json (struct MHD_Connection *connection,
- void **con_cls,
- const char *upload_data,
- size_t *upload_data_size,
- json_t **json)
-{
- struct Buffer *r = *con_cls;
-
- *json = NULL;
- if (NULL == *con_cls)
- {
- /* We are seeing a fresh POST request. */
- r = GNUNET_new (struct Buffer);
- if (GNUNET_OK !=
- buffer_init (r,
- upload_data,
- *upload_data_size,
- REQUEST_BUFFER_INITIAL,
- REQUEST_BUFFER_MAX))
- {
- *con_cls = NULL;
- buffer_deinit (r);
- GNUNET_free (r);
- return (MHD_NO ==
- TMH_RESPONSE_reply_internal_error (connection,
- "out of memory"))
- ? GNUNET_SYSERR : GNUNET_NO;
- }
- /* everything OK, wait for more POST data */
- *upload_data_size = 0;
- *con_cls = r;
- return GNUNET_YES;
- }
- if (0 != *upload_data_size)
- {
- /* We are seeing an old request with more data available. */
-
- if (GNUNET_OK !=
- buffer_append (r,
- upload_data,
- *upload_data_size,
- REQUEST_BUFFER_MAX))
- {
- /* Request too long */
- *con_cls = NULL;
- buffer_deinit (r);
- GNUNET_free (r);
- return (MHD_NO ==
- TMH_RESPONSE_reply_request_too_large (connection))
- ? GNUNET_SYSERR : GNUNET_NO;
- }
- /* everything OK, wait for more POST data */
- *upload_data_size = 0;
- return GNUNET_YES;
- }
-
- /* We have seen the whole request. */
-
- *json = json_loadb (r->data,
- r->fill,
- 0,
- NULL);
- if (NULL == *json)
- {
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
- "Failed to parse JSON request body\n");
- return (MHD_YES ==
- TMH_RESPONSE_reply_invalid_json (connection))
- ? GNUNET_NO : GNUNET_SYSERR;
- }
- buffer_deinit (r);
- GNUNET_free (r);
- *con_cls = NULL;
-
- return GNUNET_YES;
-}
-
-
-/**
- * Function called whenever we are done with a request
- * to clean up our state.
- *
- * @param con_cls value as it was left by
- * #TMH_PARSE_post_json(), to be cleaned up
- */
-void
-TMH_PARSE_post_cleanup_callback (void *con_cls)
-{
- struct Buffer *r = con_cls;
-
- if (NULL != r)
- {
- buffer_deinit (r);
- GNUNET_free (r);
- }
-}
-
-
-/**
- * Extract base32crockford encoded data from request.
- *
- * Queues an error response to the connection if the parameter is missing or
- * invalid.
- *
- * @param connection the MHD connection
- * @param param_name the name of the parameter with the key
- * @param[out] out_data pointer to store the result
- * @param out_size expected size of data
- * @return
- * #GNUNET_YES if the the argument is present
- * #GNUNET_NO if the argument is absent or malformed
- * #GNUNET_SYSERR on internal error (error response could not be sent)
- */
-int
-TMH_PARSE_mhd_request_arg_data (struct MHD_Connection *connection,
- const char *param_name,
- void *out_data,
- size_t out_size)
-{
- const char *str;
-
- str = MHD_lookup_connection_value (connection,
- MHD_GET_ARGUMENT_KIND,
- param_name);
- if (NULL == str)
- {
- return (MHD_NO ==
- TMH_RESPONSE_reply_arg_missing (connection, param_name))
- ? GNUNET_SYSERR : GNUNET_NO;
- }
- if (GNUNET_OK !=
- GNUNET_STRINGS_string_to_data (str,
- strlen (str),
- out_data,
- out_size))
- return (MHD_NO ==
- TMH_RESPONSE_reply_arg_invalid (connection, param_name))
- ? GNUNET_SYSERR : GNUNET_NO;
- return GNUNET_OK;
-}
-
-
-/**
- * Extraxt variable-size base32crockford encoded data from request.
- *
- * Queues an error response to the connection if the parameter is missing
- * or the encoding is invalid.
- *
- * @param connection the MHD connection
- * @param param_name the name of the parameter with the key
- * @param[out] out_data pointer to allocate buffer and store the result
- * @param[out] out_size set to the size of the buffer allocated in @a out_data
- * @return
- * #GNUNET_YES if the the argument is present
- * #GNUNET_NO if the argument is absent or malformed
- * #GNUNET_SYSERR on internal error (error response could not be sent)
- */
-int
-TMH_PARSE_mhd_request_var_arg_data (struct MHD_Connection *connection,
- const char *param_name,
- void **out_data,
- size_t *out_size)
-{
- const char *str;
- size_t slen;
- size_t olen;
- void *out;
-
- str = MHD_lookup_connection_value (connection,
- MHD_GET_ARGUMENT_KIND,
- param_name);
- if (NULL == str)
- {
- return (MHD_NO ==
- TMH_RESPONSE_reply_arg_missing (connection, param_name))
- ? GNUNET_SYSERR : GNUNET_NO;
- }
- slen = strlen (str);
- olen = (slen * 5) / 8;
- out = GNUNET_malloc (olen);
- if (GNUNET_OK !=
- GNUNET_STRINGS_string_to_data (str,
- strlen (str),
- out,
- olen))
- {
- GNUNET_free (out);
- *out_size = 0;
- return (MHD_NO ==
- TMH_RESPONSE_reply_arg_invalid (connection, param_name))
- ? GNUNET_SYSERR : GNUNET_NO;
- }
- *out_data = out;
- *out_size = olen;
- return GNUNET_OK;
-}
-
-
-/**
- * Navigate through a JSON tree.
- *
- * Sends an error response if navigation is impossible (i.e.
- * the JSON object is invalid)
- *
- * @param connection the connection to send an error response to
- * @param root the JSON node to start the navigation at.
- * @param ... navigation specification (see `enum TMH_PARSE_JsonNavigationCommand`)
- * @return
- * #GNUNET_YES if navigation was successful
- * #GNUNET_NO if json is malformed, error response was generated
- * #GNUNET_SYSERR on internal error (no response was generated,
- * connection must be closed)
- */
-int
-TMH_PARSE_navigate_json (struct MHD_Connection *connection,
- const json_t *root,
- ...)
-{
- va_list argp;
- int ret;
- json_t *path; /* what's our current path from 'root'? */
-
- path = json_array ();
- va_start (argp, root);
- ret = 2; /* just not any of the valid return values */
- while (2 == ret)
- {
- enum TMH_PARSE_JsonNavigationCommand command
- = va_arg (argp,
- enum TMH_PARSE_JsonNavigationCommand);
-
- switch (command)
- {
- case TMH_PARSE_JNC_FIELD:
- {
- const char *fname = va_arg(argp, const char *);
-
- json_array_append_new (path,
- json_string (fname));
- root = json_object_get (root,
- fname);
- if (NULL == root)
- {
- GNUNET_break_op (0);
- ret = (MHD_YES ==
- TMH_RESPONSE_reply_json_pack (connection,
- MHD_HTTP_BAD_REQUEST,
- "{s:s, s:s, s:O}",
- "error", "missing field in JSON",
- "field", fname,
- "path", path))
- ? GNUNET_NO : GNUNET_SYSERR;
- break;
- }
- }
- break;
-
- case TMH_PARSE_JNC_INDEX:
- {
- int fnum = va_arg(argp, int);
-
- json_array_append_new (path,
- json_integer (fnum));
- root = json_array_get (root,
- fnum);
- if (NULL == root)
- {
- GNUNET_break_op (0);
- ret = (MHD_YES ==
- TMH_RESPONSE_reply_json_pack (connection,
- MHD_HTTP_BAD_REQUEST,
- "{s:s, s:O}",
- "error", "missing index in JSON",
- "path", path))
- ? GNUNET_NO : GNUNET_SYSERR;
- break;
- }
- }
- break;
-
- case TMH_PARSE_JNC_RET_DATA:
- {
- void *where = va_arg (argp, void *);
- size_t len = va_arg (argp, size_t);
- const char *str;
- int res;
-
- str = json_string_value (root);
- if (NULL == str)
- {
- GNUNET_break_op (0);
- ret = (MHD_YES ==
- TMH_RESPONSE_reply_json_pack (connection,
- MHD_HTTP_BAD_REQUEST,
- "{s:s, s:O}",
- "error", "string expected",
- "path", path))
- ? GNUNET_NO : GNUNET_SYSERR;
- break;
- }
- res = GNUNET_STRINGS_string_to_data (str, strlen (str),
- where, len);
- if (GNUNET_OK != res)
- {
- GNUNET_break_op (0);
- ret = (MHD_YES ==
- TMH_RESPONSE_reply_json_pack (connection,
- MHD_HTTP_BAD_REQUEST,
- "{s:s, s:O}",
- "error", "malformed binary data in JSON",
- "path", path))
- ? GNUNET_NO : GNUNET_SYSERR;
- break;
- }
- ret = GNUNET_OK;
- }
- break;
-
- case TMH_PARSE_JNC_RET_DATA_VAR:
- {
- void **where = va_arg (argp, void **);
- size_t *len = va_arg (argp, size_t *);
- const char *str;
- int res;
-
- str = json_string_value (root);
- if (NULL == str)
- {
- GNUNET_break_op (0);
- ret = (MHD_YES ==
- TMH_RESPONSE_reply_internal_error (connection,
- "json_string_value() failed"))
- ? GNUNET_NO : GNUNET_SYSERR;
- break;
- }
- *len = (strlen (str) * 5) / 8;
- if (NULL != where)
- {
- *where = GNUNET_malloc (*len);
- res = GNUNET_STRINGS_string_to_data (str,
- strlen (str),
- *where,
- *len);
- if (GNUNET_OK != res)
- {
- GNUNET_break_op (0);
- GNUNET_free (*where);
- *where = NULL;
- *len = 0;
- ret = (MHD_YES ==
- TMH_RESPONSE_reply_json_pack (connection,
- MHD_HTTP_BAD_REQUEST,
- "{s:s, s:O}",
- "error", "malformed binary data in JSON",
- "path", path))
- ? GNUNET_NO : GNUNET_SYSERR;
- break;
- }
- }
- ret = GNUNET_OK;
- }
- break;
-
- case TMH_PARSE_JNC_RET_TYPED_JSON:
- {
- int typ = va_arg (argp, int);
- const json_t **r_json = va_arg (argp, const json_t **);
-
- if ( (NULL == root) ||
- ( (-1 != typ) &&
- (json_typeof (root) != typ)) )
- {
- GNUNET_break_op (0);
- *r_json = NULL;
- ret = (MHD_YES ==
- TMH_RESPONSE_reply_json_pack (connection,
- MHD_HTTP_BAD_REQUEST,
- "{s:s, s:i, s:i, s:O}",
- "error", "wrong JSON field type",
- "type_expected", typ,
- "type_actual", json_typeof (root),
- "path", path))
- ? GNUNET_NO : GNUNET_SYSERR;
- break;
- }
- *r_json = root;
- json_incref ((json_t *) root);
- ret = GNUNET_OK;
- }
- break;
-
- case TMH_PARSE_JNC_RET_UINT64:
- {
- uint64_t *r_u64 = va_arg (argp, uint64_t *);
-
- if (json_typeof (root) != JSON_INTEGER)
- {
- GNUNET_break_op (0);
- ret = (MHD_YES ==
- TMH_RESPONSE_reply_json_pack (connection,
- MHD_HTTP_BAD_REQUEST,
- "{s:s, s:s, s:i, s:O}",
- "error", "wrong JSON field type",
- "type_expected", "integer",
- "type_actual", json_typeof (root),
- "path", path))
- ? GNUNET_NO : GNUNET_SYSERR;
- break;
- }
- *r_u64 = (uint64_t) json_integer_value (root);
- ret = GNUNET_OK;
- }
- break;
-
- case TMH_PARSE_JNC_RET_RSA_PUBLIC_KEY:
- {
- struct TALER_DenominationPublicKey *where;
- size_t len;
- const char *str;
- int res;
- void *buf;
-
- where = va_arg (argp,
- struct TALER_DenominationPublicKey *);
- str = json_string_value (root);
- if (NULL == str)
- {
- GNUNET_break_op (0);
- ret = (MHD_YES ==
- TMH_RESPONSE_reply_json_pack (connection,
- MHD_HTTP_BAD_REQUEST,
- "{s:s, s:O}",
- "error", "string expected",
- "path", path))
- ? GNUNET_NO : GNUNET_SYSERR;
- break;
- }
- len = (strlen (str) * 5) / 8;
- buf = GNUNET_malloc (len);
- res = GNUNET_STRINGS_string_to_data (str,
- strlen (str),
- buf,
- len);
- if (GNUNET_OK != res)
- {
- GNUNET_break_op (0);
- GNUNET_free (buf);
- ret = (MHD_YES ==
- TMH_RESPONSE_reply_json_pack (connection,
- MHD_HTTP_BAD_REQUEST,
- "{s:s, s:O}",
- "error", "malformed binary data in JSON",
- "path", path))
- ? GNUNET_NO : GNUNET_SYSERR;
- break;
- }
- where->rsa_public_key = GNUNET_CRYPTO_rsa_public_key_decode (buf,
- len);
- GNUNET_free (buf);
- if (NULL == where->rsa_public_key)
- {
- GNUNET_break_op (0);
- ret = (MHD_YES ==
- TMH_RESPONSE_reply_json_pack (connection,
- MHD_HTTP_BAD_REQUEST,
- "{s:s, s:O}",
- "error", "malformed RSA public key in JSON",
- "path", path))
- ? GNUNET_NO : GNUNET_SYSERR;
- break;
- }
- ret = GNUNET_OK;
- break;
- }
-
- case TMH_PARSE_JNC_RET_RSA_SIGNATURE:
- {
- struct TALER_DenominationSignature *where;
- size_t len;
- const char *str;
- int res;
- void *buf;
-
- where = va_arg (argp,
- struct TALER_DenominationSignature *);
- str = json_string_value (root);
- if (NULL == str)
- {
- GNUNET_break_op (0);
- ret = (MHD_YES ==
- TMH_RESPONSE_reply_json_pack (connection,
- MHD_HTTP_BAD_REQUEST,
- "{s:s, s:O}",
- "error", "string expected",
- "path", path))
- ? GNUNET_NO : GNUNET_SYSERR;
- break;
- }
- len = (strlen (str) * 5) / 8;
- buf = GNUNET_malloc (len);
- res = GNUNET_STRINGS_string_to_data (str,
- strlen (str),
- buf,
- len);
- if (GNUNET_OK != res)
- {
- GNUNET_break_op (0);
- GNUNET_free (buf);
- ret = (MHD_YES ==
- TMH_RESPONSE_reply_json_pack (connection,
- MHD_HTTP_BAD_REQUEST,
- "{s:s, s:O}",
- "error", "malformed binary data in JSON",
- "path", path))
- ? GNUNET_NO : GNUNET_SYSERR;
- break;
- }
- where->rsa_signature = GNUNET_CRYPTO_rsa_signature_decode (buf,
- len);
- GNUNET_free (buf);
- if (NULL == where->rsa_signature)
- {
- GNUNET_break_op (0);
- ret = (MHD_YES ==
- TMH_RESPONSE_reply_json_pack (connection,
- MHD_HTTP_BAD_REQUEST,
- "{s:s, s:O}",
- "error", "malformed RSA signature in JSON",
- "path", path))
- ? GNUNET_NO : GNUNET_SYSERR;
- break;
- }
- ret = GNUNET_OK;
- break;
- }
-
- case TMH_PARSE_JNC_RET_AMOUNT:
- {
- struct TALER_Amount *where = va_arg (argp, void *);
-
- if (GNUNET_OK !=
- TALER_json_to_amount ((json_t *) root,
- where))
- {
- GNUNET_break_op (0);
- ret = (MHD_YES !=
- TMH_RESPONSE_reply_json_pack (connection,
- MHD_HTTP_BAD_REQUEST,
- "{s:s, s:O}",
- "error", "Bad format",
- "path", path))
- ? GNUNET_SYSERR : GNUNET_NO;
- break;
- }
- if (0 != strcmp (where->currency,
- TMH_mint_currency_string))
- {
- GNUNET_break_op (0);
- ret = (MHD_YES !=
- TMH_RESPONSE_reply_json_pack (connection,
- MHD_HTTP_BAD_REQUEST,
- "{s:s, s:O, s:s}",
- "error", "Currency not supported",
- "path", path,
- "currency", where->currency))
- ? GNUNET_SYSERR : GNUNET_NO;
- memset (where, 0, sizeof (struct TALER_Amount));
- break;
- }
- ret = GNUNET_OK;
- break;
- }
-
- case TMH_PARSE_JNC_RET_TIME_ABSOLUTE:
- {
- struct GNUNET_TIME_Absolute *where = va_arg (argp, void *);
-
- if (GNUNET_OK !=
- TALER_json_to_abs ((json_t *) root,
- where))
- {
- GNUNET_break_op (0);
- ret = (MHD_YES !=
- TMH_RESPONSE_reply_json_pack (connection,
- MHD_HTTP_BAD_REQUEST,
- "{s:s, s:s, s:O}",
- "error", "Bad format",
- "hint", "expected absolute time",
- "path", path))
- ? GNUNET_SYSERR : GNUNET_NO;
- break;
- }
- ret = GNUNET_OK;
- break;
- }
-
- default:
- GNUNET_break (0);
- ret = (MHD_YES ==
- TMH_RESPONSE_reply_internal_error (connection,
- "unhandled value in switch"))
- ? GNUNET_NO : GNUNET_SYSERR;
- break;
- }
- }
- va_end (argp);
- json_decref (path);
- return ret;
-}
-
-
-/**
- * Parse JSON object into components based on the given field
- * specification.
- *
- * @param connection the connection to send an error response to
- * @param root the JSON node to start the navigation at.
- * @param spec field specification for the parser
- * @return
- * #GNUNET_YES if navigation was successful (caller is responsible
- * for freeing allocated variable-size data using
- * #TMH_PARSE_release_data() when done)
- * #GNUNET_NO if json is malformed, error response was generated
- * #GNUNET_SYSERR on internal error
- */
-int
-TMH_PARSE_json_data (struct MHD_Connection *connection,
- const json_t *root,
- struct TMH_PARSE_FieldSpecification *spec)
-{
- unsigned int i;
- int ret;
-
- ret = GNUNET_YES;
- for (i=0; NULL != spec[i].field_name; i++)
- {
- if (GNUNET_YES != ret)
- break;
- switch (spec[i].command)
- {
- case TMH_PARSE_JNC_FIELD:
- GNUNET_break (0);
- return GNUNET_SYSERR;
- case TMH_PARSE_JNC_INDEX:
- GNUNET_break (0);
- return GNUNET_SYSERR;
- case TMH_PARSE_JNC_RET_DATA:
- ret = TMH_PARSE_navigate_json (connection,
- root,
- TMH_PARSE_JNC_FIELD,
- spec[i].field_name,
- TMH_PARSE_JNC_RET_DATA,
- spec[i].destination,
- spec[i].destination_size_in);
- break;
- case TMH_PARSE_JNC_RET_DATA_VAR:
- ret = TMH_PARSE_navigate_json (connection,
- root,
- TMH_PARSE_JNC_FIELD,
- spec[i].field_name,
- TMH_PARSE_JNC_RET_DATA_VAR,
- (void **) spec[i].destination,
- spec[i].destination_size_out);
- break;
- case TMH_PARSE_JNC_RET_TYPED_JSON:
- ret = TMH_PARSE_navigate_json (connection,
- root,
- TMH_PARSE_JNC_FIELD,
- spec[i].field_name,
- TMH_PARSE_JNC_RET_TYPED_JSON,
- spec[i].type,
- spec[i].destination);
- break;
- case TMH_PARSE_JNC_RET_RSA_PUBLIC_KEY:
- ret = TMH_PARSE_navigate_json (connection,
- root,
- TMH_PARSE_JNC_FIELD,
- spec[i].field_name,
- TMH_PARSE_JNC_RET_RSA_PUBLIC_KEY,
- spec[i].destination);
- break;
- case TMH_PARSE_JNC_RET_RSA_SIGNATURE:
- ret = TMH_PARSE_navigate_json (connection,
- root,
- TMH_PARSE_JNC_FIELD,
- spec[i].field_name,
- TMH_PARSE_JNC_RET_RSA_SIGNATURE,
- spec[i].destination);
- break;
- case TMH_PARSE_JNC_RET_AMOUNT:
- GNUNET_assert (sizeof (struct TALER_Amount) ==
- spec[i].destination_size_in);
- ret = TMH_PARSE_navigate_json (connection,
- root,
- TMH_PARSE_JNC_FIELD,
- spec[i].field_name,
- TMH_PARSE_JNC_RET_AMOUNT,
- spec[i].destination);
- break;
- case TMH_PARSE_JNC_RET_TIME_ABSOLUTE:
- GNUNET_assert (sizeof (struct GNUNET_TIME_Absolute) ==
- spec[i].destination_size_in);
- ret = TMH_PARSE_navigate_json (connection,
- root,
- TMH_PARSE_JNC_FIELD,
- spec[i].field_name,
- TMH_PARSE_JNC_RET_TIME_ABSOLUTE,
- spec[i].destination);
- break;
- case TMH_PARSE_JNC_RET_UINT64:
- GNUNET_assert (sizeof (uint64_t) ==
- spec[i].destination_size_in);
- ret = TMH_PARSE_navigate_json (connection,
- root,
- TMH_PARSE_JNC_FIELD,
- spec[i].field_name,
- TMH_PARSE_JNC_RET_UINT64,
- spec[i].destination);
- break;
- }
- }
- if (GNUNET_YES != ret)
- release_data (spec,
- i - 1);
- return ret;
-}
-
-
-/**
- * Release all memory allocated for the variable-size fields in
- * the parser specification.
- *
- * @param spec specification to free
- */
-void
-TMH_PARSE_release_data (struct TMH_PARSE_FieldSpecification *spec)
-{
- unsigned int i;
-
- for (i=0; NULL != spec[i].field_name; i++) ;
- release_data (spec, i);
-}
-
-
-/**
- * Generate line in parser specification for 64-bit integer
- * given as an integer in JSON.
- *
- * @param field name of the field
- * @param[out] u64 integer to initialize
- * @return corresponding field spec
- */
-struct TMH_PARSE_FieldSpecification
-TMH_PARSE_member_uint64 (const char *field,
- uint64_t *u64)
-{
- struct TMH_PARSE_FieldSpecification ret =
- { field, (void *) u64, sizeof (uint64_t), NULL, TMH_PARSE_JNC_RET_UINT64, 0 };
- return ret;
-}
-
-
-/**
- * Generate line in parser specification for JSON object value.
- *
- * @param field name of the field
- * @param[out] jsonp address of pointer to JSON to initialize
- * @return corresponding field spec
- */
-struct TMH_PARSE_FieldSpecification
-TMH_PARSE_member_object (const char *field,
- json_t **jsonp)
-{
- struct TMH_PARSE_FieldSpecification ret =
- { field, jsonp, 0, NULL, TMH_PARSE_JNC_RET_TYPED_JSON, JSON_OBJECT };
- *jsonp = NULL;
- return ret;
-}
-
-
-/**
- * Generate line in parser specification for JSON array value.
- *
- * @param field name of the field
- * @param[out] jsonp address of JSON pointer to initialize
- * @return corresponding field spec
- */
-struct TMH_PARSE_FieldSpecification
-TMH_PARSE_member_array (const char *field,
- json_t **jsonp)
-{
- struct TMH_PARSE_FieldSpecification ret =
- { field, jsonp, 0, NULL, TMH_PARSE_JNC_RET_TYPED_JSON, JSON_ARRAY };
- *jsonp = NULL;
- return ret;
-}
-
-
-/**
- * Generate line in parser specification for an absolute time.
- *
- * @param field name of the field
- * @param[out] atime time to initialize
- */
-struct TMH_PARSE_FieldSpecification
-TMH_PARSE_member_time_abs (const char *field,
- struct GNUNET_TIME_Absolute *atime)
-{
- struct TMH_PARSE_FieldSpecification ret =
- { field, atime, sizeof(struct GNUNET_TIME_Absolute), NULL, TMH_PARSE_JNC_RET_TIME_ABSOLUTE, 0 };
- return ret;
-}
-
-
-/**
- * Generate line in parser specification for RSA public key.
- *
- * @param field name of the field
- * @param[out] pk key to initialize
- * @return corresponding field spec
- */
-struct TMH_PARSE_FieldSpecification
-TMH_PARSE_member_denomination_public_key (const char *field,
- struct TALER_DenominationPublicKey *pk)
-{
- struct TMH_PARSE_FieldSpecification ret =
- { field, pk, 0, NULL, TMH_PARSE_JNC_RET_RSA_PUBLIC_KEY, 0 };
- pk->rsa_public_key = NULL;
- return ret;
-}
-
-
-/**
- * Generate line in parser specification for RSA public key.
- *
- * @param field name of the field
- * @param sig the signature to initialize
- * @return corresponding field spec
- */
-struct TMH_PARSE_FieldSpecification
-TMH_PARSE_member_denomination_signature (const char *field,
- struct TALER_DenominationSignature *sig)
-{
- struct TMH_PARSE_FieldSpecification ret =
- { field, sig, 0, NULL, TMH_PARSE_JNC_RET_RSA_SIGNATURE, 0 };
- sig->rsa_signature = NULL;
- return ret;
-}
-
-
-/**
- * Generate line in parser specification for an amount.
- *
- * @param field name of the field
- * @param amount a `struct TALER_Amount *` to initialize
- * @return corresponding field spec
- */
-struct TMH_PARSE_FieldSpecification
-TMH_PARSE_member_amount (const char *field,
- struct TALER_Amount *amount)
-{
- struct TMH_PARSE_FieldSpecification ret =
- { field, amount, sizeof(struct TALER_Amount), NULL, TMH_PARSE_JNC_RET_AMOUNT, 0 };
- memset (amount, 0, sizeof (struct TALER_Amount));
- return ret;
-}
-
-
-/**
- * Generate line in parser specification for variable-size value.
- *
- * @param field name of the field
- * @param[out] ptr pointer to initialize
- * @param[out] ptr_size size to initialize
- * @return corresponding field spec
- */
-struct TMH_PARSE_FieldSpecification
-TMH_PARSE_member_variable (const char *field,
- void **ptr,
- size_t *ptr_size)
-{
- struct TMH_PARSE_FieldSpecification ret =
- { field, ptr, 0, ptr_size, TMH_PARSE_JNC_RET_DATA_VAR, 0 };
- *ptr = NULL;
- return ret;
-}
-
-/* end of taler-mint-httpd_parsing.c */