profit
This commit is contained in:
Christian Grothoff
parent
0ea09d3d6e
commit
f5a783c169
@ -39,453 +39,6 @@
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#define SANITY_CHECKS_ON 1
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#define SANITY_CHECKS_ON 1
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/**
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* Add headers we want to return in every response.
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* Useful for testing, like if we want to always close
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* connections.
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*
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* @param response response to modify
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*/
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void
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TEH_RESPONSE_add_global_headers (struct MHD_Response *response)
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{
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if (TEH_exchange_connection_close)
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GNUNET_break (MHD_YES ==
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MHD_add_response_header (response,
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MHD_HTTP_HEADER_CONNECTION,
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"close"));
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}
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/**
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* Is HTTP body deflate compression supported by the client?
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*
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* @param connection connection to check
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* @return #MHD_YES if 'deflate' compression is allowed
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*
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* Note that right now we're ignoring q-values, which is technically
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* not correct, and also do not support "*" anywhere but in a line by
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* itself. This should eventually be fixed, see also
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* https://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html
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*/
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int
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TEH_RESPONSE_can_compress (struct MHD_Connection *connection)
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{
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const char *ae;
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const char *de;
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ae = MHD_lookup_connection_value (connection,
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MHD_HEADER_KIND,
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MHD_HTTP_HEADER_ACCEPT_ENCODING);
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if (NULL == ae)
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return MHD_NO;
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if (0 == strcmp (ae,
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"*"))
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return MHD_YES;
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de = strstr (ae,
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"deflate");
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if (NULL == de)
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return MHD_NO;
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if ( ( (de == ae) ||
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(de[-1] == ',') ||
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(de[-1] == ' ') ) &&
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( (de[strlen ("deflate")] == '\0') ||
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(de[strlen ("deflate")] == ',') ||
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(de[strlen ("deflate")] == ';') ) )
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return MHD_YES;
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return MHD_NO;
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}
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/**
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* Try to compress a response body. Updates @a buf and @a buf_size.
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*
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* @param[in,out] buf pointer to body to compress
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* @param[in,out] buf_size pointer to initial size of @a buf
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* @return #MHD_YES if @a buf was compressed
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*/
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int
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TEH_RESPONSE_body_compress (void **buf,
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size_t *buf_size)
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{
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Bytef *cbuf;
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uLongf cbuf_size;
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int ret;
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cbuf_size = compressBound (*buf_size);
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cbuf = malloc (cbuf_size);
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if (NULL == cbuf)
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return MHD_NO;
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ret = compress (cbuf,
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&cbuf_size,
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(const Bytef *) *buf,
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*buf_size);
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if ( (Z_OK != ret) ||
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(cbuf_size >= *buf_size) )
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{
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/* compression failed */
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free (cbuf);
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return MHD_NO;
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}
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free (*buf);
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*buf = (void *) cbuf;
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*buf_size = (size_t) cbuf_size;
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return MHD_YES;
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}
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/**
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* Send JSON object as response.
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*
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* @param connection the MHD connection
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* @param json the json object
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* @param response_code the http response code
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* @return MHD result code
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*/
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int
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TEH_RESPONSE_reply_json (struct MHD_Connection *connection,
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const json_t *json,
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unsigned int response_code)
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{
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struct MHD_Response *resp;
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void *json_str;
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size_t json_len;
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int ret;
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int comp;
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json_str = json_dumps (json,
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JSON_INDENT (2));
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if (NULL == json_str)
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{
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/**
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* This log helps to figure out which
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* function called this one and assert-failed.
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*/
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TALER_LOG_ERROR ("Aborting json-packing for HTTP code: %u\n",
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response_code);
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GNUNET_assert (0);
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return MHD_NO;
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}
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json_len = strlen (json_str);
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/* try to compress the body */
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comp = MHD_NO;
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if (MHD_YES ==
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TEH_RESPONSE_can_compress (connection))
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comp = TEH_RESPONSE_body_compress (&json_str,
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&json_len);
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resp = MHD_create_response_from_buffer (json_len,
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json_str,
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MHD_RESPMEM_MUST_FREE);
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if (NULL == resp)
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{
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free (json_str);
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GNUNET_break (0);
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return MHD_NO;
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}
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TEH_RESPONSE_add_global_headers (resp);
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GNUNET_break (MHD_YES ==
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MHD_add_response_header (resp,
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MHD_HTTP_HEADER_CONTENT_TYPE,
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"application/json"));
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if (MHD_YES == comp)
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{
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/* Need to indicate to client that body is compressed */
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if (MHD_NO ==
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MHD_add_response_header (resp,
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MHD_HTTP_HEADER_CONTENT_ENCODING,
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"deflate"))
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{
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GNUNET_break (0);
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MHD_destroy_response (resp);
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return MHD_NO;
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}
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}
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ret = MHD_queue_response (connection,
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response_code,
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resp);
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MHD_destroy_response (resp);
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return ret;
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}
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/**
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* Function to call to handle the request by building a JSON
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* reply from a format string and varargs.
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*
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* @param connection the MHD connection to handle
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* @param response_code HTTP response code to use
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* @param fmt format string for pack
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* @param ... varargs
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* @return MHD result code
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*/
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int
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TEH_RESPONSE_reply_json_pack (struct MHD_Connection *connection,
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unsigned int response_code,
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const char *fmt,
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...)
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{
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json_t *json;
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va_list argp;
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int ret;
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json_error_t jerror;
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va_start (argp, fmt);
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json = json_vpack_ex (&jerror, 0, fmt, argp);
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va_end (argp);
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if (NULL == json)
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{
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GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
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"Failed to pack JSON with format `%s': %s\n",
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fmt,
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jerror.text);
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GNUNET_break (0);
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return MHD_NO;
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}
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ret = TEH_RESPONSE_reply_json (connection,
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json,
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response_code);
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json_decref (json);
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return ret;
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}
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/**
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* Send a response indicating an invalid argument.
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*
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* @param connection the MHD connection to use
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* @param ec error code uniquely identifying the error
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* @param param_name the parameter that is invalid
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* @return a MHD result code
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*/
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int
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TEH_RESPONSE_reply_arg_invalid (struct MHD_Connection *connection,
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enum TALER_ErrorCode ec,
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const char *param_name)
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{
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return TEH_RESPONSE_reply_json_pack (connection,
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MHD_HTTP_BAD_REQUEST,
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"{s:s, s:I, s:s}",
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"error", "invalid parameter",
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"code", (json_int_t) ec,
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"parameter", param_name);
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}
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/**
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* Send a response indicating an argument refering to a
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* resource unknown to the exchange (i.e. unknown reserve or
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* denomination key).
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*
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* @param connection the MHD connection to use
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* @param ec error code uniquely identifying the error
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* @param param_name the parameter that is invalid
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* @return a MHD result code
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*/
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int
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TEH_RESPONSE_reply_arg_unknown (struct MHD_Connection *connection,
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enum TALER_ErrorCode ec,
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const char *param_name)
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{
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return TEH_RESPONSE_reply_json_pack (connection,
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MHD_HTTP_NOT_FOUND,
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"{s:s, s:I, s:s}",
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"error", "unknown entity referenced",
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"code", (json_int_t) ec,
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"parameter", param_name);
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}
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/**
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* Send a response indicating an invalid signature.
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*
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* @param connection the MHD connection to use
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* @param ec error code uniquely identifying the error
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* @param param_name the parameter that is invalid
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* @return a MHD result code
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*/
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int
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TEH_RESPONSE_reply_signature_invalid (struct MHD_Connection *connection,
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enum TALER_ErrorCode ec,
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const char *param_name)
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{
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return TEH_RESPONSE_reply_json_pack (connection,
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MHD_HTTP_UNAUTHORIZED,
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"{s:s, s:I, s:s}",
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"error", "invalid signature",
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"code", (json_int_t) ec,
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"parameter", param_name);
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}
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/**
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* Send a response indicating a missing argument.
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*
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* @param connection the MHD connection to use
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* @param ec error code uniquely identifying the error
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* @param param_name the parameter that is missing
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* @return a MHD result code
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*/
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int
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TEH_RESPONSE_reply_arg_missing (struct MHD_Connection *connection,
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enum TALER_ErrorCode ec,
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const char *param_name)
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{
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return TEH_RESPONSE_reply_json_pack (connection,
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MHD_HTTP_BAD_REQUEST,
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"{s:s, s:I, s:s}",
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"error", "missing parameter",
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"code", (json_int_t) ec,
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"parameter", param_name);
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}
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/**
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* Send a response indicating an internal error.
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*
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* @param connection the MHD connection to use
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* @param ec error code uniquely identifying the error
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* @param hint hint about the internal error's nature
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* @return a MHD result code
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*/
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int
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TEH_RESPONSE_reply_internal_error (struct MHD_Connection *connection,
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enum TALER_ErrorCode ec,
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const char *hint)
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{
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return TEH_RESPONSE_reply_json_pack (connection,
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MHD_HTTP_INTERNAL_SERVER_ERROR,
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"{s:s, s:I, s:s}",
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"error", "internal error",
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"code", (json_int_t) ec,
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"hint", hint);
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}
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/**
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* Send a response indicating an error.
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*
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* @param connection the MHD connection to use
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* @param ec error code uniquely identifying the error
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* @param http_status HTTP status code to use
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* @return a MHD result code
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*/
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int
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TEH_RESPONSE_reply_with_error (struct MHD_Connection *connection,
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enum TALER_ErrorCode ec,
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unsigned int http_status)
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{
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return TEH_RESPONSE_reply_json_pack (connection,
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http_status,
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"{s:I}",
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"code", (json_int_t) ec);
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}
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/**
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* Send a response indicating an external error.
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*
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* @param connection the MHD connection to use
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* @param ec error code uniquely identifying the error
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* @param hint hint about the error's nature
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* @return a MHD result code
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*/
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int
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TEH_RESPONSE_reply_external_error (struct MHD_Connection *connection,
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enum TALER_ErrorCode ec,
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const char *hint)
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{
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return TEH_RESPONSE_reply_json_pack (connection,
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MHD_HTTP_BAD_REQUEST,
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"{s:s, s:I, s:s}",
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"error", "client error",
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"code", (json_int_t) ec,
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"hint", hint);
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}
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/**
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* Send a response indicating an error committing a
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* transaction (concurrent interference).
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*
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* @param connection the MHD connection to use
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* @param ec error code uniquely identifying the error
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* @return a MHD result code
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*/
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int
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TEH_RESPONSE_reply_commit_error (struct MHD_Connection *connection,
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enum TALER_ErrorCode ec)
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{
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return TEH_RESPONSE_reply_json_pack (connection,
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MHD_HTTP_INTERNAL_SERVER_ERROR,
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"{s:s, s:I}",
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"error", "commit failure",
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"code", (json_int_t) ec);
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}
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/**
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* Send a response indicating a failure to talk to the Exchange's
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* database.
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*
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* @param connection the MHD connection to use
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* @param ec error code uniquely identifying the error
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* @return a MHD result code
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*/
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int
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TEH_RESPONSE_reply_internal_db_error (struct MHD_Connection *connection,
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enum TALER_ErrorCode ec)
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{
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return TEH_RESPONSE_reply_internal_error (connection,
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ec,
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"Failure in database interaction");
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}
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/**
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* Send a response indicating that the request was too big.
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*
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* @param connection the MHD connection to use
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* @return a MHD result code
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*/
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int
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|
||||||
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.
|
* Compile the transaction history of a coin into a JSON object.
|
||||||
*
|
*
|
||||||
@ -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 */
|
/* end of taler-exchange-httpd_responses.c */
|
||||||
|
|||||||
Loading…
Reference in New Issue
Block a user