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-rw-r--r--src/mint-lib/mint_api_context.h169
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diff --git a/src/mint-lib/mint_api_context.h b/src/mint-lib/mint_api_context.h
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--- a/src/mint-lib/mint_api_context.h
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-/*
- 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 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 General Public License for more details.
-
- You should have received a copy of the GNU General Public License along with
- TALER; see the file COPYING. If not, If not, see
- <http://www.gnu.org/licenses/>
-*/
-/**
- * @file mint-lib/mint_api_context.h
- * @brief Internal interface to the context part of the mint's HTTP API
- * @author Sree Harsha Totakura <sreeharsha@totakura.in>
- * @author Christian Grothoff
- */
-#include "platform.h"
-#include <curl/curl.h>
-#include <gnunet/gnunet_util_lib.h>
-#include "taler_mint_service.h"
-#include "taler_signatures.h"
-
-
-/**
- * Entry in the context's job queue.
- */
-struct MAC_Job;
-
-/**
- * Function to call upon completion of a job.
- *
- * @param cls closure
- * @param eh original easy handle (for inspection)
- */
-typedef void
-(*MAC_JobCompletionCallback)(void *cls,
- CURL *eh);
-
-
-/**
- * Schedule a CURL request to be executed and call the given @a jcc
- * upon its completion. Note that the context will make use of the
- * CURLOPT_PRIVATE facility of the CURL @a eh. Applications can
- * instead use #MAC_easy_to_closure to extract the @a jcc_cls argument
- * from a valid @a eh afterwards.
- *
- * This function modifies the CURL handle to add the
- * "Content-Type: application/json" header if @a add_json is set.
- *
- * @param ctx context to execute the job in
- * @param eh curl easy handle for the request, will
- * be executed AND cleaned up
- * @param add_json add "application/json" content type header
- * @param jcc callback to invoke upon completion
- * @param jcc_cls closure for @a jcc
- */
-struct MAC_Job *
-MAC_job_add (struct TALER_MINT_Context *ctx,
- CURL *eh,
- int add_json,
- MAC_JobCompletionCallback jcc,
- void *jcc_cls);
-
-
-/**
- * Obtain the `jcc_cls` argument from an `eh` that was
- * given to #MAC_job_add().
- *
- * @param eh easy handle that was used
- * @return the `jcc_cls` that was given to #MAC_job_add().
- */
-void *
-MAC_easy_to_closure (CURL *eh);
-
-
-/**
- * Cancel a job. Must only be called before the job completion
- * callback is called for the respective job.
- *
- * @param job job to cancel
- */
-void
-MAC_job_cancel (struct MAC_Job *job);
-
-
-/**
- * @brief Buffer data structure we use to buffer the HTTP download
- * before giving it to the JSON parser.
- */
-struct MAC_DownloadBuffer
-{
-
- /**
- * Download buffer
- */
- void *buf;
-
- /**
- * The size of the download buffer
- */
- size_t buf_size;
-
- /**
- * Error code (based on libc errno) if we failed to download
- * (i.e. response too large).
- */
- int eno;
-
-};
-
-
-/**
- * Callback used when downloading the reply to an HTTP request.
- * Just appends all of the data to the `buf` in the
- * `struct MAC_DownloadBuffer` for further processing. The size of
- * the download is limited to #GNUNET_MAX_MALLOC_CHECKED, if
- * the download exceeds this size, we abort with an error.
- *
- * Should be used by the various routines as the
- * CURLOPT_WRITEFUNCTION. A `struct MAC_DownloadBuffer` needs to be
- * passed to the CURLOPT_WRITEDATA.
- *
- * Afterwards, `eno` needs to be checked to ensure that the download
- * completed correctly.
- *
- * @param bufptr data downloaded via HTTP
- * @param size size of an item in @a bufptr
- * @param nitems number of items in @a bufptr
- * @param cls the `struct KeysRequest`
- * @return number of bytes processed from @a bufptr
- */
-size_t
-MAC_download_cb (char *bufptr,
- size_t size,
- size_t nitems,
- void *cls);
-
-
-/**
- * Obtain information about the final result about the
- * HTTP download. If the download was successful, parses
- * the JSON in the @a db and returns it. Also returns
- * the HTTP @a response_code. If the download failed,
- * the return value is NULL. The response code is set
- * in any case, on download errors to zero.
- *
- * Calling this function also cleans up @a db.
- *
- * @param db download buffer
- * @param eh CURL handle (to get the response code)
- * @param[out] response_code set to the HTTP response code
- * (or zero if we aborted the download, i.e.
- * because the response was too big, or if
- * the JSON we received was malformed).
- * @return NULL if downloading a JSON reply failed
- */
-json_t *
-MAC_download_get_result (struct MAC_DownloadBuffer *db,
- CURL *eh,
- long *response_code);
-
-
-/* end of mint_api_context.h */