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91a22dc496
We move it into jsonrpc where it belongs, and make it fail the command. This means it can tell us exactly what was wrong. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
112 lines
3.3 KiB
C
112 lines
3.3 KiB
C
#ifndef LIGHTNING_LIGHTNINGD_JSONRPC_H
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#define LIGHTNING_LIGHTNINGD_JSONRPC_H
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#include "config.h"
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#include <ccan/autodata/autodata.h>
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#include <ccan/list/list.h>
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#include <common/json.h>
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struct bitcoin_txid;
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struct wireaddr;
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/* Context for a command (from JSON, but might outlive the connection!)
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* You can allocate off this for temporary objects. */
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struct command {
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/* The global state */
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struct lightningd *ld;
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/* The 'id' which we need to include in the response. */
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const char *id;
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/* The connection, or NULL if it closed. */
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struct json_connection *jcon;
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/* Have we been marked by command_still_pending? For debugging... */
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bool pending;
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};
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struct json_connection {
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/* The global state */
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struct lightningd *ld;
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/* Logging for this json connection. */
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struct log *log;
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/* The buffer (required to interpret tokens). */
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char *buffer;
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/* Internal state: */
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/* How much is already filled. */
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size_t used;
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/* How much has just been filled. */
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size_t len_read;
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/* We've been told to stop. */
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bool stop;
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/* Current command. */
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struct command *current;
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struct list_head output;
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const char *outbuf;
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};
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struct json_command {
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const char *name;
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void (*dispatch)(struct command *,
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const char *buffer, const jsmntok_t *params);
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const char *description;
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bool deprecated;
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const char *verbose;
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};
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/* Get the parameters (by position or name). Followed by triples of
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* of const char *name, const jsmntok_t **ret_ptr, then NULL.
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*
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* If name starts with '?' it is optional (and will be set to NULL
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* if it's a literal 'null' or not present).
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* Otherwise false is returned, and command_fail already called.
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*/
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bool json_get_params(struct command *cmd,
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const char *buffer, const jsmntok_t param[], ...);
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struct json_result *null_response(const tal_t *ctx);
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void command_success(struct command *cmd, struct json_result *response);
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void PRINTF_FMT(2, 3) command_fail(struct command *cmd, const char *fmt, ...);
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void PRINTF_FMT(4, 5) command_fail_detailed(struct command *cmd,
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int code,
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const struct json_result *data,
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const char *fmt, ...);
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/* Mainly for documentation, that we plan to close this later. */
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void command_still_pending(struct command *cmd);
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/* '"fieldname" : "0289abcdef..."' or "0289abcdef..." if fieldname is NULL */
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void json_add_pubkey(struct json_result *response,
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const char *fieldname,
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const struct pubkey *key);
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/* '"fieldname" : <hexrev>' or "<hexrev>" if fieldname is NULL */
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void json_add_txid(struct json_result *result, const char *fieldname,
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const struct bitcoin_txid *txid);
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/* Extract a pubkey from this */
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bool json_tok_pubkey(const char *buffer, const jsmntok_t *tok,
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struct pubkey *pubkey);
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/* Extract a short_channel_id from this */
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bool json_tok_short_channel_id(const char *buffer, const jsmntok_t *tok,
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struct short_channel_id *scid);
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/* '"fieldname" : "1234:5:6"' */
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void json_add_short_channel_id(struct json_result *response,
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const char *fieldname,
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const struct short_channel_id *id);
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/* JSON serialize a network address for a node */
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void json_add_address(struct json_result *response, const char *fieldname,
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const struct wireaddr *addr);
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/* For initialization */
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void setup_jsonrpc(struct lightningd *ld, const char *rpc_filename);
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AUTODATA_TYPE(json_command, struct json_command);
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#endif /* LIGHTNING_LIGHTNINGD_JSONRPC_H */
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