writeout: support to generate JSON output

This commit adds support to generate JSON via the writeout feature:

    -w "%{json}"

It leverages the existing infrastructure as much as possible. Thus,
generating the JSON on STDERR is possible by:

    -w "%{stderr}%{json}"

This implements a variant of
https://github.com/curl/curl/wiki/JSON#--write-out-json.

Closes #4870
This commit is contained in:
Mathias Gumz 2020-02-01 18:55:24 +01:00 committed by Daniel Stenberg
parent d83402813b
commit 04c03416e6
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8 changed files with 361 additions and 83 deletions

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@ -7,7 +7,7 @@
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2019, Daniel Stenberg, <daniel@haxx.se>, et al.
* Copyright (C) 1998 - 2020, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
@ -23,6 +23,61 @@
***************************************************************************/
#include "tool_setup.h"
typedef enum {
VAR_NONE, /* must be the first */
VAR_TOTAL_TIME,
VAR_NAMELOOKUP_TIME,
VAR_CONNECT_TIME,
VAR_APPCONNECT_TIME,
VAR_PRETRANSFER_TIME,
VAR_STARTTRANSFER_TIME,
VAR_SIZE_DOWNLOAD,
VAR_SIZE_UPLOAD,
VAR_SPEED_DOWNLOAD,
VAR_SPEED_UPLOAD,
VAR_HTTP_CODE,
VAR_HTTP_CODE_PROXY,
VAR_HEADER_SIZE,
VAR_REQUEST_SIZE,
VAR_EFFECTIVE_URL,
VAR_CONTENT_TYPE,
VAR_NUM_CONNECTS,
VAR_REDIRECT_TIME,
VAR_REDIRECT_COUNT,
VAR_FTP_ENTRY_PATH,
VAR_REDIRECT_URL,
VAR_SSL_VERIFY_RESULT,
VAR_PROXY_SSL_VERIFY_RESULT,
VAR_EFFECTIVE_FILENAME,
VAR_PRIMARY_IP,
VAR_PRIMARY_PORT,
VAR_LOCAL_IP,
VAR_LOCAL_PORT,
VAR_HTTP_VERSION,
VAR_SCHEME,
VAR_STDOUT,
VAR_STDERR,
VAR_JSON,
VAR_NUM_OF_VARS /* must be the last */
} writeoutid;
typedef enum {
JSON_NONE,
JSON_STRING,
JSON_LONG,
JSON_TIME,
JSON_VERSION,
JSON_FILENAME
} jsontype;
struct writeoutvar {
const char *name;
writeoutid id;
int is_ctrl;
CURLINFO cinfo;
jsontype jsontype;
};
void ourWriteOut(CURL *curl, struct OutStruct *outs, const char *writeinfo);
#endif /* HEADER_CURL_TOOL_WRITEOUT_H */