int
stratcon_line_to_javascript(noit_http_session_ctx *ctx, char *in_buff,
                            u_int32_t *inc_id) {
  char buffer[1024];
  char *scp, *ecp, *token, *buff;
  int i, len, cnt;
  const char *v, *cb = NULL;
  noit_hash_table json = NOIT_HASH_EMPTY;
  noit_http_request *req = noit_http_session_request(ctx);
  char s_inc_id[42];
  char **outrows = NULL;

  cb = noit_http_request_querystring(req, "cb"); 
  for(v = cb; v && *v; v++)
    if(!((*v >= '0' && *v <= '9') ||
         (*v >= 'a' && *v <= 'z') ||
         (*v >= 'A' && *v <= 'Z') ||
         (*v == '_') || (*v == '.'))) {
      cb = NULL;
      break;
    }
  if(!cb) cb = "window.parent.plot_iframe_data";

#define BAIL_HTTP_WRITE do { \
  if(outrows) { \
    for(i=0;i<cnt;i++) if(outrows[i]) free(outrows[i]); \
    free(outrows); \
  } \
  noit_hash_destroy(&json, NULL, free); \
  noitL(noit_error, "javascript emit failed: %s:%s:%d\n", \
        __FILE__, __FUNCTION__, __LINE__); \
  return -1; \
} while(0)

#define PROCESS_NEXT_FIELD(t,l) do { \
  if(!*scp) goto bad_row; \
  ecp = strchr(scp, '\t'); \
  if(!ecp) goto bad_row; \
  t = scp; \
  l = (ecp-scp); \
  scp = ecp + 1; \
} while(0)
#define PROCESS_LAST_FIELD(t,l) do { \
  if(!*scp) ecp = scp; \
  else { \
    ecp = scp + strlen(scp); /* Puts us at the '\0' */ \
    if(*(ecp-1) == '\n') ecp--; /* We back up on letter if we ended in \n */ \
  } \
  t = scp; \
  l = (ecp-scp); \
} while(0)

  noitL(noit_error, "recv(%s)\n", in_buff);
  if(in_buff[0] == 'B' && in_buff[1] != '\0' && in_buff[2] == '\t') {
    cnt = noit_check_log_b_to_sm(in_buff, strlen(in_buff), &outrows);
  }
  else {
    cnt = 1;
    outrows = malloc(sizeof(*outrows));
    outrows[0] = strdup(in_buff);
  }
  for(i=0; i<cnt; i++) {
    buff = outrows[i];
    if(!buff) continue;
    noitL(noit_error, "recv_xlt(%s)\n", buff);
    scp = buff;
    PROCESS_NEXT_FIELD(token,len); /* Skip the leader */
    if(buff[1] == '\t' && (buff[0] == 'M' || buff[0] == 'S')) {
      char target[256], module[256], name[256], uuid_str[UUID_STR_LEN+1];
      noit_http_request *req = noit_http_session_request(ctx);
      noit_hash_table *qs;
      noit_hash_iter iter = NOIT_HASH_ITER_ZERO;
      const char *key;
      int klen, i=0;
      void *vval;
      char type[2] = { '\0', '\0' };
      type[0] = buff[0];

#define ra_write(a,b) if(noit_http_response_append(ctx, a, b) == noit_false) BAIL_HTTP_WRITE

      snprintf(s_inc_id, sizeof(s_inc_id), "script-%08x", (*inc_id)++);
      snprintf(buffer, sizeof(buffer), "<script id=\"%s\">%s({", s_inc_id, cb);
      ra_write(buffer, strlen(buffer));

      qs = noit_http_request_querystring_table(req);
      while(noit_hash_next(qs, &iter, &key, &klen, &vval)) {
        if(!strcmp(key, "cb")) continue;
        noit_hash_store(&json, key, klen, strdup(vval ?(char *)vval : "true"));
      }
      /* Time */
      noit_hash_store(&json, "script_id", 9, strdup(s_inc_id));
      noit_hash_store(&json, "type", 4, strdup(type));
      PROCESS_NEXT_FIELD(token,len);
      noit_hash_store(&json, "time", 4, noit__strndup(token, len));
      /* UUID */
      PROCESS_NEXT_FIELD(token,len);
      noit_check_extended_id_split(token, len, target, sizeof(target),
                                   module, sizeof(module), name, sizeof(name),
                                   uuid_str, sizeof(uuid_str));
      if(*uuid_str)
        noit_hash_store(&json, "id", 2,
                        noit__strndup(uuid_str, strlen(uuid_str)));
      if(*target)
        noit_hash_store(&json, "check_target", 12,
                        noit__strndup(target, strlen(target)));
      if(*module)
        noit_hash_store(&json, "check_module", 12,
                        noit__strndup(module, strlen(module)));
      if(*name)
        noit_hash_store(&json, "check_name", 10,
                        noit__strndup(name, strlen(name)));
      if(buff[0] == 'M') {
        /* name */
        PROCESS_NEXT_FIELD(token,len);
        noit_hash_store(&json, "metric_name", 11, noit__strndup(token, len));
        /* type */
        PROCESS_NEXT_FIELD(token,len);
        noit_hash_store(&json, "metric_type", 11, noit__strndup(token, len));
        /* value */
        PROCESS_LAST_FIELD(token,len); /* value */
        noit_hash_store(&json, "value", 5, noit__strndup(token, len));
      }
      else if(buff[0] == 'S') {
        /* state */
        PROCESS_NEXT_FIELD(token,len);
        noit_hash_store(&json, "check_state", 11, noit__strndup(token, len));
        /* availability */
        PROCESS_NEXT_FIELD(token,len);
        noit_hash_store(&json, "check_availability", 18, noit__strndup(token, len));
        /* duration */
        PROCESS_NEXT_FIELD(token,len);
        noit_hash_store(&json, "check_duration_ms", 17, noit__strndup(token, len));
        /* status */
        PROCESS_LAST_FIELD(token,len);
        noit_hash_store(&json, "status_message", 14, noit__strndup(token, len));
      }

      memset(&iter, 0, sizeof(iter));
      while(noit_hash_next(&json, &iter, &key, &klen, &vval)) {
        char *val = (char *)vval;
        if(i++) ra_write(",", 1);
        ra_write("\"", 1);
        ra_write(key, klen);
        ra_write("\":\"", 3);
        while(*val) {
          if(*val == '\"' || *val == '\\') {
            ra_write((char *)"\\", 1);
          }
          if(isprint(*val)) {
            ra_write((char *)val, 1);
          }
          else {
            char od[5];
            snprintf(od, sizeof(od), "\\%03o", *((unsigned char *)val));
            ra_write(od, strlen(od));
          }
          val++;
        }
        ra_write("\"", 1);
      }
      snprintf(buffer, sizeof(buffer), "});</script>\n");
      ra_write(buffer, strlen(buffer));

      if(noit_http_response_flush(ctx, noit_false) == noit_false) BAIL_HTTP_WRITE;
    }

    noit_hash_destroy(&json, NULL, free);
    memset(&json, 0, sizeof(json));
  }
  if(outrows) {
    for(i=0;i<cnt;i++) if(outrows[i]) free(outrows[i]);
    free(outrows);
  }

  return 0;

 bad_row:
  BAIL_HTTP_WRITE;
}
Esempio n. 2
0
int
stratcon_line_to_javascript(noit_http_session_ctx *ctx, char *buff,
                            u_int32_t inc_id) {
  char buffer[1024];
  char *scp, *ecp, *token;
  int len;
  void *vcb;
  const char *v, *cb = NULL;
  noit_hash_table json = NOIT_HASH_EMPTY;
  char s_inc_id[42];

  snprintf(s_inc_id, sizeof(s_inc_id), "script-%08x", inc_id);
  if(noit_hash_retrieve(&ctx->req.querystring, "cb", strlen("cb"), &vcb))
    cb = vcb;
  for(v = cb; v && *v; v++)
    if(!((*v >= '0' && *v <= '9') ||
         (*v >= 'a' && *v <= 'z') ||
         (*v >= 'A' && *v <= 'Z') ||
         (*v == '_') || (*v == '.'))) {
      cb = NULL;
      break;
    }
  if(!cb) cb = "window.parent.plot_iframe_data";

#define BAIL_HTTP_WRITE do { \
  noit_hash_destroy(&json, NULL, free); \
  noitL(noit_error, "javascript emit failed: %s:%s:%d\n", \
        __FILE__, __FUNCTION__, __LINE__); \
  return -1; \
} while(0)

#define PROCESS_NEXT_FIELD(t,l) do { \
  if(!*scp) goto bad_row; \
  ecp = strchr(scp, '\t'); \
  if(!ecp) goto bad_row; \
  t = scp; \
  l = (ecp-scp); \
  scp = ecp + 1; \
} while(0)
#define PROCESS_LAST_FIELD(t,l) do { \
  if(!*scp) ecp = scp; \
  else { \
    ecp = scp + strlen(scp); /* Puts us at the '\0' */ \
    if(*(ecp-1) == '\n') ecp--; /* We back up on letter if we ended in \n */ \
  } \
  t = scp; \
  l = (ecp-scp); \
} while(0)

  scp = buff;
  PROCESS_NEXT_FIELD(token,len); /* Skip the leader */
  if(buff[0] == 'M') {
    noit_hash_iter iter = NOIT_HASH_ITER_ZERO;
    const char *key;
    int klen, i=0;
    void *vval;

#define ra_write(a,b) if(noit_http_response_append(ctx, a, b) == noit_false) BAIL_HTTP_WRITE

    snprintf(buffer, sizeof(buffer), "<script id=\"%s\">%s({", s_inc_id, cb);
    ra_write(buffer, strlen(buffer));

    while(noit_hash_next(&ctx->req.querystring, &iter, &key, &klen, &vval)) {
      if(!strcmp(key, "cb")) continue;
      noit_hash_store(&json, key, klen, strdup(vval ?(char *)vval : "true"));
    }
    /* Time */
    noit_hash_store(&json, "script_id", 9, strdup(s_inc_id));
    noit_hash_store(&json, "type", 4, strdup("M"));
    PROCESS_NEXT_FIELD(token,len);
    noit_hash_store(&json, "time", 4, noit__strndup(token, len));
    /* UUID */
    PROCESS_NEXT_FIELD(token,len);
    noit_hash_store(&json, "id", 2, noit__strndup(token, len));
    /* name */
    PROCESS_NEXT_FIELD(token,len);
    noit_hash_store(&json, "metric_name", 11, noit__strndup(token, len));
    /* type */
    PROCESS_NEXT_FIELD(token,len);
    noit_hash_store(&json, "metric_type", 11, noit__strndup(token, len));
    /* value */
    PROCESS_LAST_FIELD(token,len); /* value */
    noit_hash_store(&json, "value", 5, noit__strndup(token, len));

    memset(&iter, 0, sizeof(iter));
    while(noit_hash_next(&json, &iter, &key, &klen, &vval)) {
      char *val = (char *)vval;
      if(i++) ra_write(",", 1);
      ra_write("'", 1);
      ra_write(key, klen);
      ra_write("':\"", 3);
      while(*val) {
        if(*val == '\"' || *val == '\\') {
          ra_write((char *)"\\", 1);
        }
        if(isprint(*val)) {
          ra_write((char *)val, 1);
        }
        else {
          char od[5];
          snprintf(od, sizeof(od), "\\%03o", *((unsigned char *)val));
          ra_write(od, strlen(od));
        }
        val++;
      }
      ra_write("\"", 1);
    }
    snprintf(buffer, sizeof(buffer), "});</script>\n");
    ra_write(buffer, strlen(buffer));

    if(noit_http_response_flush(ctx, noit_false) == noit_false) BAIL_HTTP_WRITE;
  }

  noit_hash_destroy(&json, NULL, free);
  return 0;

 bad_row:
  BAIL_HTTP_WRITE;
}