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108 lines
2.2 KiB
C
108 lines
2.2 KiB
C
#include "json.h"
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#include "cmd.h"
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#include <string.h>
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#include <hiredis/hiredis.h>
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#include <hiredis/async.h>
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#include <event.h>
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#include <evhttp.h>
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static json_t *
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json_encode(const struct cmd *cmd, const redisReply *r);
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void
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json_reply(redisAsyncContext *c, void *r, void *privdata) {
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(void)c;
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struct evbuffer *body;
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redisReply *reply = r;
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struct cmd *cmd = privdata;
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json_t *j;
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char *json_reply;
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if (reply == NULL) {
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evhttp_send_reply(cmd->rq, 404, "Not Found", NULL);
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return;
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}
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j = json_encode(cmd, r);
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/* get JSON as string */
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json_reply = json_dumps(j, JSON_COMPACT);
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/* reply */
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body = evbuffer_new();
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evbuffer_add(body, json_reply, strlen(json_reply));
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evhttp_add_header(cmd->rq->output_headers, "Content-Type", "application/json");
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evhttp_send_reply(cmd->rq, 200, "OK", body);
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evbuffer_free(body);
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/* cleanup */
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json_decref(j);
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freeReplyObject(r);
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cmd_free(cmd);
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free(json_reply);
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}
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json_t *
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json_encode(const struct cmd *cmd, const redisReply *r) {
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unsigned int i;
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json_t *jlist, *jroot = json_object(); /* that's what we return */
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/* copy verb */
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char *verb;
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verb = calloc(cmd->argv_len[0]+1, 1);
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memcpy(verb, cmd->argv[0], cmd->argv_len[0]);
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switch(r->type) {
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case REDIS_REPLY_STATUS:
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case REDIS_REPLY_ERROR:
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jlist = json_array();
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json_array_append_new(jlist,
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r->type == REDIS_REPLY_ERROR ? json_false() : json_true());
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json_array_append_new(jlist, json_string(r->str));
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json_object_set(jroot, verb, jlist);
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break;
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case REDIS_REPLY_STRING:
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json_object_set(jroot, verb, json_string(r->str));
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break;
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case REDIS_REPLY_INTEGER:
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json_object_set(jroot, verb, json_integer(r->integer));
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break;
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case REDIS_REPLY_ARRAY:
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jlist = json_array();
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for(i = 0; i < r->elements; ++i) {
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redisReply *e = r->element[i];
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switch(e->type) {
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case REDIS_REPLY_STRING:
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json_array_append_new(jlist, json_string(e->str));
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break;
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case REDIS_REPLY_INTEGER:
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json_array_append_new(jlist, json_integer(e->integer));
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break;
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default:
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json_array_append_new(jlist, json_null());
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break;
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}
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}
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json_object_set(jroot, verb, jlist);
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break;
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default:
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json_object_set(jroot, verb, json_null());
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break;
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}
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free(verb);
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return jroot;
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}
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