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authorChristian Grothoff <christian@grothoff.org>2019-11-23 22:39:13 +0100
committerChristian Grothoff <christian@grothoff.org>2019-11-23 22:39:13 +0100
commitf5a783c1698bbbd46e4744de5cfd95e655aa329b (patch)
treeba469352b0c165cac32db91acf363cae4bcbf89f /src/exchange/taler-exchange-httpd_responses.c
parent0ea09d3d6e0f6b11de0c95bea885db0eecdef1f4 (diff)
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Diffstat (limited to 'src/exchange/taler-exchange-httpd_responses.c')
-rw-r--r--src/exchange/taler-exchange-httpd_responses.c468
1 files changed, 0 insertions, 468 deletions
diff --git a/src/exchange/taler-exchange-httpd_responses.c b/src/exchange/taler-exchange-httpd_responses.c
index 97b1e8f1..4ef0f2d1 100644
--- a/src/exchange/taler-exchange-httpd_responses.c
+++ b/src/exchange/taler-exchange-httpd_responses.c
@@ -40,453 +40,6 @@
/**
- * Add headers we want to return in every response.
- * Useful for testing, like if we want to always close
- * connections.
- *
- * @param response response to modify
- */
-void
-TEH_RESPONSE_add_global_headers (struct MHD_Response *response)
-{
- if (TEH_exchange_connection_close)
- GNUNET_break (MHD_YES ==
- MHD_add_response_header (response,
- MHD_HTTP_HEADER_CONNECTION,
- "close"));
-}
-
-
-/**
- * Is HTTP body deflate compression supported by the client?
- *
- * @param connection connection to check
- * @return #MHD_YES if 'deflate' compression is allowed
- *
- * Note that right now we're ignoring q-values, which is technically
- * not correct, and also do not support "*" anywhere but in a line by
- * itself. This should eventually be fixed, see also
- * https://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html
- */
-int
-TEH_RESPONSE_can_compress (struct MHD_Connection *connection)
-{
- const char *ae;
- const char *de;
-
- ae = MHD_lookup_connection_value (connection,
- MHD_HEADER_KIND,
- MHD_HTTP_HEADER_ACCEPT_ENCODING);
- if (NULL == ae)
- return MHD_NO;
- if (0 == strcmp (ae,
- "*"))
- return MHD_YES;
- de = strstr (ae,
- "deflate");
- if (NULL == de)
- return MHD_NO;
- if ( ( (de == ae) ||
- (de[-1] == ',') ||
- (de[-1] == ' ') ) &&
- ( (de[strlen ("deflate")] == '\0') ||
- (de[strlen ("deflate")] == ',') ||
- (de[strlen ("deflate")] == ';') ) )
- return MHD_YES;
- return MHD_NO;
-}
-
-
-/**
- * Try to compress a response body. Updates @a buf and @a buf_size.
- *
- * @param[in,out] buf pointer to body to compress
- * @param[in,out] buf_size pointer to initial size of @a buf
- * @return #MHD_YES if @a buf was compressed
- */
-int
-TEH_RESPONSE_body_compress (void **buf,
- size_t *buf_size)
-{
- Bytef *cbuf;
- uLongf cbuf_size;
- int ret;
-
- cbuf_size = compressBound (*buf_size);
- cbuf = malloc (cbuf_size);
- if (NULL == cbuf)
- return MHD_NO;
- ret = compress (cbuf,
- &cbuf_size,
- (const Bytef *) *buf,
- *buf_size);
- if ( (Z_OK != ret) ||
- (cbuf_size >= *buf_size) )
- {
- /* compression failed */
- free (cbuf);
- return MHD_NO;
- }
- free (*buf);
- *buf = (void *) cbuf;
- *buf_size = (size_t) cbuf_size;
- return MHD_YES;
-}
-
-
-/**
- * Send JSON object as response.
- *
- * @param connection the MHD connection
- * @param json the json object
- * @param response_code the http response code
- * @return MHD result code
- */
-int
-TEH_RESPONSE_reply_json (struct MHD_Connection *connection,
- const json_t *json,
- unsigned int response_code)
-{
- struct MHD_Response *resp;
- void *json_str;
- size_t json_len;
- int ret;
- int comp;
-
- json_str = json_dumps (json,
- JSON_INDENT (2));
- if (NULL == json_str)
- {
- /**
- * This log helps to figure out which
- * function called this one and assert-failed.
- */
- TALER_LOG_ERROR ("Aborting json-packing for HTTP code: %u\n",
- response_code);
-
- GNUNET_assert (0);
- return MHD_NO;
- }
- json_len = strlen (json_str);
- /* try to compress the body */
- comp = MHD_NO;
- if (MHD_YES ==
- TEH_RESPONSE_can_compress (connection))
- comp = TEH_RESPONSE_body_compress (&json_str,
- &json_len);
- resp = MHD_create_response_from_buffer (json_len,
- json_str,
- MHD_RESPMEM_MUST_FREE);
- if (NULL == resp)
- {
- free (json_str);
- GNUNET_break (0);
- return MHD_NO;
- }
- TEH_RESPONSE_add_global_headers (resp);
- GNUNET_break (MHD_YES ==
- MHD_add_response_header (resp,
- MHD_HTTP_HEADER_CONTENT_TYPE,
- "application/json"));
- if (MHD_YES == comp)
- {
- /* Need to indicate to client that body is compressed */
- if (MHD_NO ==
- MHD_add_response_header (resp,
- MHD_HTTP_HEADER_CONTENT_ENCODING,
- "deflate"))
- {
- GNUNET_break (0);
- MHD_destroy_response (resp);
- return MHD_NO;
- }
- }
- ret = MHD_queue_response (connection,
- response_code,
- resp);
- MHD_destroy_response (resp);
- return ret;
-}
-
-
-/**
- * Function to call to handle the request by building a JSON
- * reply from a format string and varargs.
- *
- * @param connection the MHD connection to handle
- * @param response_code HTTP response code to use
- * @param fmt format string for pack
- * @param ... varargs
- * @return MHD result code
- */
-int
-TEH_RESPONSE_reply_json_pack (struct MHD_Connection *connection,
- unsigned int response_code,
- const char *fmt,
- ...)
-{
- json_t *json;
- va_list argp;
- int ret;
- json_error_t jerror;
-
- va_start (argp, fmt);
- json = json_vpack_ex (&jerror, 0, fmt, argp);
- va_end (argp);
- if (NULL == json)
- {
- GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
- "Failed to pack JSON with format `%s': %s\n",
- fmt,
- jerror.text);
- GNUNET_break (0);
- return MHD_NO;
- }
- ret = TEH_RESPONSE_reply_json (connection,
- json,
- response_code);
- json_decref (json);
- return ret;
-}
-
-
-/**
- * Send a response indicating an invalid argument.
- *
- * @param connection the MHD connection to use
- * @param ec error code uniquely identifying the error
- * @param param_name the parameter that is invalid
- * @return a MHD result code
- */
-int
-TEH_RESPONSE_reply_arg_invalid (struct MHD_Connection *connection,
- enum TALER_ErrorCode ec,
- const char *param_name)
-{
- return TEH_RESPONSE_reply_json_pack (connection,
- MHD_HTTP_BAD_REQUEST,
- "{s:s, s:I, s:s}",
- "error", "invalid parameter",
- "code", (json_int_t) ec,
- "parameter", param_name);
-}
-
-
-/**
- * Send a response indicating an argument refering to a
- * resource unknown to the exchange (i.e. unknown reserve or
- * denomination key).
- *
- * @param connection the MHD connection to use
- * @param ec error code uniquely identifying the error
- * @param param_name the parameter that is invalid
- * @return a MHD result code
- */
-int
-TEH_RESPONSE_reply_arg_unknown (struct MHD_Connection *connection,
- enum TALER_ErrorCode ec,
- const char *param_name)
-{
- return TEH_RESPONSE_reply_json_pack (connection,
- MHD_HTTP_NOT_FOUND,
- "{s:s, s:I, s:s}",
- "error", "unknown entity referenced",
- "code", (json_int_t) ec,
- "parameter", param_name);
-}
-
-
-/**
- * Send a response indicating an invalid signature.
- *
- * @param connection the MHD connection to use
- * @param ec error code uniquely identifying the error
- * @param param_name the parameter that is invalid
- * @return a MHD result code
- */
-int
-TEH_RESPONSE_reply_signature_invalid (struct MHD_Connection *connection,
- enum TALER_ErrorCode ec,
- const char *param_name)
-{
- return TEH_RESPONSE_reply_json_pack (connection,
- MHD_HTTP_UNAUTHORIZED,
- "{s:s, s:I, s:s}",
- "error", "invalid signature",
- "code", (json_int_t) ec,
- "parameter", param_name);
-}
-
-
-/**
- * Send a response indicating a missing argument.
- *
- * @param connection the MHD connection to use
- * @param ec error code uniquely identifying the error
- * @param param_name the parameter that is missing
- * @return a MHD result code
- */
-int
-TEH_RESPONSE_reply_arg_missing (struct MHD_Connection *connection,
- enum TALER_ErrorCode ec,
- const char *param_name)
-{
- return TEH_RESPONSE_reply_json_pack (connection,
- MHD_HTTP_BAD_REQUEST,
- "{s:s, s:I, s:s}",
- "error", "missing parameter",
- "code", (json_int_t) ec,
- "parameter", param_name);
-}
-
-
-/**
- * Send a response indicating an internal error.
- *
- * @param connection the MHD connection to use
- * @param ec error code uniquely identifying the error
- * @param hint hint about the internal error's nature
- * @return a MHD result code
- */
-int
-TEH_RESPONSE_reply_internal_error (struct MHD_Connection *connection,
- enum TALER_ErrorCode ec,
- const char *hint)
-{
- return TEH_RESPONSE_reply_json_pack (connection,
- MHD_HTTP_INTERNAL_SERVER_ERROR,
- "{s:s, s:I, s:s}",
- "error", "internal error",
- "code", (json_int_t) ec,
- "hint", hint);
-}
-
-
-/**
- * Send a response indicating an error.
- *
- * @param connection the MHD connection to use
- * @param ec error code uniquely identifying the error
- * @param http_status HTTP status code to use
- * @return a MHD result code
- */
-int
-TEH_RESPONSE_reply_with_error (struct MHD_Connection *connection,
- enum TALER_ErrorCode ec,
- unsigned int http_status)
-{
- return TEH_RESPONSE_reply_json_pack (connection,
- http_status,
- "{s:I}",
- "code", (json_int_t) ec);
-}
-
-
-/**
- * Send a response indicating an external error.
- *
- * @param connection the MHD connection to use
- * @param ec error code uniquely identifying the error
- * @param hint hint about the error's nature
- * @return a MHD result code
- */
-int
-TEH_RESPONSE_reply_external_error (struct MHD_Connection *connection,
- enum TALER_ErrorCode ec,
- const char *hint)
-{
- return TEH_RESPONSE_reply_json_pack (connection,
- MHD_HTTP_BAD_REQUEST,
- "{s:s, s:I, s:s}",
- "error", "client error",
- "code", (json_int_t) ec,
- "hint", hint);
-}
-
-
-/**
- * Send a response indicating an error committing a
- * transaction (concurrent interference).
- *
- * @param connection the MHD connection to use
- * @param ec error code uniquely identifying the error
- * @return a MHD result code
- */
-int
-TEH_RESPONSE_reply_commit_error (struct MHD_Connection *connection,
- enum TALER_ErrorCode ec)
-{
- return TEH_RESPONSE_reply_json_pack (connection,
- MHD_HTTP_INTERNAL_SERVER_ERROR,
- "{s:s, s:I}",
- "error", "commit failure",
- "code", (json_int_t) ec);
-}
-
-
-/**
- * Send a response indicating a failure to talk to the Exchange's
- * database.
- *
- * @param connection the MHD connection to use
- * @param ec error code uniquely identifying the error
- * @return a MHD result code
- */
-int
-TEH_RESPONSE_reply_internal_db_error (struct MHD_Connection *connection,
- enum TALER_ErrorCode ec)
-{
- return TEH_RESPONSE_reply_internal_error (connection,
- ec,
- "Failure in database interaction");
-}
-
-
-/**
- * Send a response indicating that the request was too big.
- *
- * @param connection the MHD connection to use
- * @return a MHD result code
- */
-int
-TEH_RESPONSE_reply_request_too_large (struct MHD_Connection *connection)
-{
- struct MHD_Response *resp;
- int ret;
-
- resp = MHD_create_response_from_buffer (0,
- NULL,
- MHD_RESPMEM_PERSISTENT);
- if (NULL == resp)
- return MHD_NO;
- TEH_RESPONSE_add_global_headers (resp);
- ret = MHD_queue_response (connection,
- MHD_HTTP_REQUEST_ENTITY_TOO_LARGE,
- resp);
- MHD_destroy_response (resp);
- return ret;
-}
-
-
-/**
- * Send a response indicating that the JSON was malformed.
- *
- * @param connection the MHD connection to use
- * @return a MHD result code
- */
-int
-TEH_RESPONSE_reply_invalid_json (struct MHD_Connection *connection)
-{
- return TEH_RESPONSE_reply_json_pack (connection,
- MHD_HTTP_BAD_REQUEST,
- "{s:s, s:I}",
- "error", "invalid json",
- "code",
- (json_int_t) TALER_EC_JSON_INVALID);
-}
-
-
-/**
* Compile the transaction history of a coin into a JSON object.
*
* @param tl transaction history to JSON-ify
@@ -1172,25 +725,4 @@ TEH_RESPONSE_compile_reserve_history (const struct
}
-/**
- * A merchant asked for details about a deposit, but
- * we do not know anything about the deposit. Generate the
- * 404 reply.
- *
- * @param connection connection to the client
- * @param ec Taler error code
- * @return MHD result code
- */
-int
-TEH_RESPONSE_reply_transaction_unknown (struct MHD_Connection *connection,
- enum TALER_ErrorCode ec)
-{
- return TEH_RESPONSE_reply_json_pack (connection,
- MHD_HTTP_NOT_FOUND,
- "{s:s, s:I}",
- "error", "Deposit unknown",
- "code", (json_int_t) ec);
-}
-
-
/* end of taler-exchange-httpd_responses.c */