| 1 | // SPDX-License-Identifier: GPL-3.0-or-later |
| 2 | |
| 3 | #include "nd_log-internals.h" |
| 4 | |
| 5 | void nd_logger_json(BUFFER *wb, struct log_field *fields, size_t fields_max) { |
| 6 | |
| 7 | // --- FIELD_PARSER_VERSIONS --- |
| 8 | // |
| 9 | // IMPORTANT: |
| 10 | // THERE ARE 6 VERSIONS OF THIS CODE |
| 11 | // |
| 12 | // 1. journal (direct socket API), |
| 13 | // 2. journal (libsystemd API), |
| 14 | // 3. logfmt, |
| 15 | // 4. json, |
| 16 | // 5. convert to uint64 |
| 17 | // 6. convert to int64 |
| 18 | // |
| 19 | // UPDATE ALL OF THEM FOR NEW FEATURES OR FIXES |
| 20 | |
| 21 | buffer_json_initialize(wb, "\"", "\"", 0, true, BUFFER_JSON_OPTIONS_MINIFY); |
| 22 | CLEAN_BUFFER *tmp = NULL; |
| 23 | |
| 24 | for (size_t i = 0; i < fields_max; i++) { |
| 25 | if (!fields[i].entry.set || !fields[i].logfmt) |
| 26 | continue; |
| 27 | |
| 28 | const char *key = fields[i].logfmt; |
| 29 | |
| 30 | const char *s = NULL; |
| 31 | switch(fields[i].entry.type) { |
| 32 | case NDFT_TXT: |
| 33 | s = fields[i].entry.txt; |
| 34 | break; |
| 35 | case NDFT_STR: |
| 36 | s = string2str(fields[i].entry.str); |
| 37 | break; |
| 38 | case NDFT_BFR: |
| 39 | s = buffer_tostring(fields[i].entry.bfr); |
| 40 | break; |
| 41 | case NDFT_U64: |
| 42 | buffer_json_member_add_uint64(wb, key, fields[i].entry.u64); |
| 43 | break; |
| 44 | case NDFT_I64: |
| 45 | buffer_json_member_add_int64(wb, key, fields[i].entry.i64); |
| 46 | break; |
| 47 | case NDFT_DBL: |
| 48 | buffer_json_member_add_double(wb, key, fields[i].entry.dbl); |
| 49 | break; |
| 50 | case NDFT_UUID: |
| 51 | if(!uuid_is_null(*fields[i].entry.uuid)) { |
| 52 | char u[UUID_COMPACT_STR_LEN]; |
| 53 | uuid_unparse_lower_compact(*fields[i].entry.uuid, u); |
| 54 | buffer_json_member_add_string(wb, key, u); |
| 55 | } |
| 56 | break; |
| 57 | case NDFT_CALLBACK: { |
| 58 | if(!tmp) |
| 59 | tmp = buffer_create(1024, NULL); |
| 60 | else |
| 61 | buffer_flush(tmp); |
| 62 | if(fields[i].entry.cb.formatter(tmp, fields[i].entry.cb.formatter_data)) |
| 63 | s = buffer_tostring(tmp); |
| 64 | else |
| 65 | s = NULL; |
| 66 | } |
| 67 | break; |
| 68 | default: |
| 69 | s = "UNHANDLED"; |
| 70 | break; |
| 71 | } |
| 72 | |
| 73 | if(s && *s) |
| 74 | buffer_json_member_add_string(wb, key, s); |
| 75 | } |
| 76 | |
| 77 | buffer_json_finalize(wb); |
| 78 | } |