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lnav/src/log_format.cc

4138 lines
152 KiB
C++

/**
* Copyright (c) 2007-2015, Timothy Stack
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* * Neither the name of Timothy Stack nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ''AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <algorithm>
#include <memory>
#include <fnmatch.h>
#include <stdio.h>
#include <string.h>
#include "base/fs_util.hh"
#include "base/is_utf8.hh"
#include "base/map_util.hh"
#include "base/opt_util.hh"
#include "base/snippet_highlighters.hh"
#include "base/string_util.hh"
#include "command_executor.hh"
#include "config.h"
#include "fmt/format.h"
#include "lnav_util.hh"
#include "log_format_ext.hh"
#include "log_search_table.hh"
#include "log_vtab_impl.hh"
#include "ptimec.hh"
#include "readline_highlighters.hh"
#include "scn/scn.h"
#include "sql_util.hh"
#include "sqlite-extension-func.hh"
#include "sqlitepp.hh"
#include "yajlpp/yajlpp.hh"
#include "yajlpp/yajlpp_def.hh"
using namespace lnav::roles::literals;
static auto intern_lifetime = intern_string::get_table_lifetime();
string_attr_type<void> logline::L_PREFIX("prefix");
string_attr_type<void> logline::L_TIMESTAMP("timestamp");
string_attr_type<std::shared_ptr<logfile>> logline::L_FILE("file");
string_attr_type<bookmark_metadata*> logline::L_PARTITION("partition");
string_attr_type<void> logline::L_MODULE("module");
string_attr_type<void> logline::L_OPID("opid");
string_attr_type<bookmark_metadata*> logline::L_META("meta");
external_log_format::mod_map_t external_log_format::MODULE_FORMATS;
std::vector<std::shared_ptr<external_log_format>>
external_log_format::GRAPH_ORDERED_FORMATS;
static const uint32_t DATE_TIME_SET_FLAGS = ETF_YEAR_SET | ETF_MONTH_SET
| ETF_DAY_SET | ETF_HOUR_SET | ETF_MINUTE_SET | ETF_SECOND_SET;
log_level_stats&
log_level_stats::operator|=(const log_level_stats& rhs)
{
this->lls_error_count += rhs.lls_error_count;
this->lls_warning_count += rhs.lls_warning_count;
this->lls_total_count += rhs.lls_total_count;
return *this;
}
log_op_description&
log_op_description::operator|=(const log_op_description& rhs)
{
if (!this->lod_id && rhs.lod_id) {
this->lod_id = rhs.lod_id;
}
if (this->lod_elements.size() < rhs.lod_elements.size()) {
this->lod_elements = rhs.lod_elements;
}
return *this;
}
opid_time_range&
opid_time_range::operator|=(const opid_time_range& rhs)
{
this->otr_range |= rhs.otr_range;
this->otr_description |= rhs.otr_description;
this->otr_level_stats |= rhs.otr_level_stats;
for (const auto& rhs_sub : rhs.otr_sub_ops) {
bool found = false;
for (auto& sub : this->otr_sub_ops) {
if (sub.ostr_subid == rhs_sub.ostr_subid) {
sub.ostr_range |= rhs_sub.ostr_range;
found = true;
}
}
if (!found) {
this->otr_sub_ops.emplace_back(rhs_sub);
}
}
std::stable_sort(this->otr_sub_ops.begin(), this->otr_sub_ops.end());
return *this;
}
void
log_level_stats::update_msg_count(log_level_t lvl)
{
switch (lvl) {
case LEVEL_FATAL:
case LEVEL_CRITICAL:
case LEVEL_ERROR:
this->lls_error_count += 1;
break;
case LEVEL_WARNING:
this->lls_warning_count += 1;
break;
default:
break;
}
this->lls_total_count += 1;
}
void
opid_time_range::close_sub_ops(const string_fragment& subid)
{
for (auto& other_sub : this->otr_sub_ops) {
if (other_sub.ostr_subid == subid) {
other_sub.ostr_open = false;
}
}
}
opid_sub_time_range*
log_opid_state::sub_op_in_use(ArenaAlloc::Alloc<char>& alloc,
log_opid_map::iterator& op_iter,
const string_fragment& subid,
const timeval& tv,
log_level_t level)
{
const auto& opid = op_iter->first;
auto sub_iter = this->los_sub_in_use.find(subid);
if (sub_iter == this->los_sub_in_use.end()) {
auto emp_res
= this->los_sub_in_use.emplace(subid.to_owned(alloc), opid);
sub_iter = emp_res.first;
}
auto retval = sub_iter->first;
if (sub_iter->second != opid) {
auto other_otr
= lnav::map::find(this->los_opid_ranges, sub_iter->second);
if (other_otr) {
other_otr->get().close_sub_ops(retval);
}
}
sub_iter->second = opid;
auto& otr = op_iter->second;
auto sub_op_iter = otr.otr_sub_ops.rbegin();
for (; sub_op_iter != otr.otr_sub_ops.rend(); ++sub_op_iter) {
if (sub_op_iter->ostr_open && sub_op_iter->ostr_subid == retval) {
break;
}
}
if (sub_op_iter == otr.otr_sub_ops.rend()) {
otr.otr_sub_ops.emplace_back(opid_sub_time_range{
retval,
time_range{tv, tv},
});
otr.otr_sub_ops.back().ostr_level_stats.update_msg_count(level);
return &otr.otr_sub_ops.back();
} else {
sub_op_iter->ostr_range.extend_to(tv);
sub_op_iter->ostr_level_stats.update_msg_count(level);
return &(*sub_op_iter);
}
}
nonstd::optional<std::string>
log_format::opid_descriptor::matches(const string_fragment& sf) const
{
if (this->od_extractor.pp_value) {
static thread_local auto desc_md
= lnav::pcre2pp::match_data::unitialized();
auto desc_match_res = this->od_extractor.pp_value->capture_from(sf)
.into(desc_md)
.matches(PCRE2_NO_UTF_CHECK | PCRE2_ANCHORED)
.ignore_error();
if (desc_match_res) {
return desc_md.to_string();
}
return nonstd::nullopt;
}
return sf.to_string();
}
std::string
log_format::opid_descriptors::to_string(
const lnav::map::small<size_t, std::string>& lod) const
{
std::string retval;
for (size_t lpc = 0; lpc < this->od_descriptors->size(); lpc++) {
retval.append(this->od_descriptors->at(lpc).od_prefix);
auto iter = lod.find(lpc);
if (iter != lod.end()) {
retval.append(iter->second);
}
retval.append(this->od_descriptors->at(lpc).od_suffix);
}
return retval;
}
struct line_range
logline_value::origin_in_full_msg(const char* msg, ssize_t len) const
{
if (this->lv_sub_offset == 0) {
return this->lv_origin;
}
if (len == -1) {
len = strlen(msg);
}
struct line_range retval = this->lv_origin;
const char *last = msg, *msg_end = msg + len;
for (int lpc = 0; lpc < this->lv_sub_offset; lpc++) {
const auto* next = (const char*) memchr(last, '\n', msg_end - last);
require(next != nullptr);
next += 1;
int amount = (next - last);
retval.lr_start += amount;
if (retval.lr_end != -1) {
retval.lr_end += amount;
}
last = next + 1;
}
if (retval.lr_end == -1) {
const auto* eol = (const char*) memchr(last, '\n', msg_end - last);
if (eol == nullptr) {
retval.lr_end = len;
} else {
retval.lr_end = eol - msg;
}
}
return retval;
}
logline_value::logline_value(logline_value_meta lvm,
shared_buffer_ref& sbr,
struct line_range origin)
: lv_meta(std::move(lvm)), lv_origin(origin)
{
if (sbr.get_data() == nullptr) {
this->lv_meta.lvm_kind = value_kind_t::VALUE_NULL;
}
switch (this->lv_meta.lvm_kind) {
case value_kind_t::VALUE_JSON:
case value_kind_t::VALUE_XML:
case value_kind_t::VALUE_STRUCT:
case value_kind_t::VALUE_TEXT:
case value_kind_t::VALUE_QUOTED:
case value_kind_t::VALUE_W3C_QUOTED:
case value_kind_t::VALUE_TIMESTAMP:
require(origin.lr_end != -1);
this->lv_frag = string_fragment::from_byte_range(
sbr.get_data(), origin.lr_start, origin.lr_end);
break;
case value_kind_t::VALUE_NULL:
break;
case value_kind_t::VALUE_INTEGER: {
auto scan_res
= scn::scan_value<int64_t>(sbr.to_string_view(origin));
if (scan_res) {
this->lv_value.i = scan_res.value();
} else {
this->lv_value.i = 0;
}
break;
}
case value_kind_t::VALUE_FLOAT: {
auto scan_res = scn::scan_value<double>(sbr.to_string_view(origin));
if (scan_res) {
this->lv_value.d = scan_res.value();
} else {
this->lv_value.d = 0;
}
break;
}
case value_kind_t::VALUE_BOOLEAN:
if (strncmp(
sbr.get_data_at(origin.lr_start), "true", origin.length())
== 0
|| strncmp(
sbr.get_data_at(origin.lr_start), "yes", origin.length())
== 0)
{
this->lv_value.i = 1;
} else {
this->lv_value.i = 0;
}
break;
case value_kind_t::VALUE_UNKNOWN:
case value_kind_t::VALUE__MAX:
ensure(0);
break;
}
}
std::string
logline_value::to_string() const
{
char buffer[128];
switch (this->lv_meta.lvm_kind) {
case value_kind_t::VALUE_NULL:
return "null";
case value_kind_t::VALUE_JSON:
case value_kind_t::VALUE_XML:
case value_kind_t::VALUE_STRUCT:
case value_kind_t::VALUE_TEXT:
case value_kind_t::VALUE_TIMESTAMP:
if (this->lv_str) {
return this->lv_str.value();
}
if (this->lv_frag.empty()) {
return this->lv_intern_string.to_string();
}
return this->lv_frag.to_string();
case value_kind_t::VALUE_QUOTED:
case value_kind_t::VALUE_W3C_QUOTED:
if (this->lv_frag.empty()) {
return "";
} else {
switch (this->lv_frag.data()[0]) {
case '\'':
case '"': {
auto unquote_func = this->lv_meta.lvm_kind
== value_kind_t::VALUE_W3C_QUOTED
? unquote_w3c
: unquote;
char unquoted_str[this->lv_frag.length()];
size_t unquoted_len;
unquoted_len = unquote_func(unquoted_str,
this->lv_frag.data(),
this->lv_frag.length());
return {unquoted_str, unquoted_len};
}
default:
return this->lv_frag.to_string();
}
}
break;
case value_kind_t::VALUE_INTEGER:
snprintf(buffer, sizeof(buffer), "%" PRId64, this->lv_value.i);
break;
case value_kind_t::VALUE_FLOAT:
snprintf(buffer, sizeof(buffer), "%lf", this->lv_value.d);
break;
case value_kind_t::VALUE_BOOLEAN:
if (this->lv_value.i) {
return "true";
} else {
return "false";
}
break;
case value_kind_t::VALUE_UNKNOWN:
case value_kind_t::VALUE__MAX:
ensure(0);
break;
}
return {buffer};
}
std::vector<std::shared_ptr<log_format>> log_format::lf_root_formats;
std::vector<std::shared_ptr<log_format>>&
log_format::get_root_formats()
{
return lf_root_formats;
}
void
external_log_format::update_op_description(
const std::map<intern_string_t, opid_descriptors>& desc_defs,
log_op_description& lod,
const pattern* fpat,
const lnav::pcre2pp::match_data& md)
{
nonstd::optional<std::string> desc_elem_str;
if (!lod.lod_id) {
for (const auto& desc_def_pair : desc_defs) {
if (lod.lod_id) {
break;
}
for (const auto& desc_def : *desc_def_pair.second.od_descriptors) {
auto desc_field_index_iter = fpat->p_value_name_to_index.find(
desc_def.od_field.pp_value);
if (desc_field_index_iter == fpat->p_value_name_to_index.end())
{
continue;
}
auto desc_cap_opt = md[desc_field_index_iter->second];
if (!desc_cap_opt) {
continue;
}
desc_elem_str = desc_def.matches(desc_cap_opt.value());
if (desc_elem_str) {
lod.lod_id = desc_def_pair.first;
}
}
}
}
if (lod.lod_id) {
const auto& desc_def_v
= *desc_defs.find(lod.lod_id.value())->second.od_descriptors;
auto& desc_v = lod.lod_elements;
if (desc_def_v.size() == desc_v.size()) {
return;
}
for (size_t desc_def_index = 0; desc_def_index < desc_def_v.size();
desc_def_index++)
{
const auto& desc_def = desc_def_v[desc_def_index];
auto found_desc = desc_v.begin();
for (; found_desc != desc_v.end(); ++found_desc) {
if (found_desc->first == desc_def_index) {
break;
}
}
auto desc_field_index_iter
= fpat->p_value_name_to_index.find(desc_def.od_field.pp_value);
if (desc_field_index_iter == fpat->p_value_name_to_index.end()) {
continue;
}
auto desc_cap_opt = md[desc_field_index_iter->second];
if (!desc_cap_opt) {
continue;
}
if (!desc_elem_str) {
desc_elem_str = desc_def.matches(desc_cap_opt.value());
}
if (desc_elem_str) {
if (found_desc == desc_v.end()) {
desc_v.emplace_back(desc_def_index, desc_elem_str.value());
} else if (!desc_elem_str->empty()) {
found_desc->second.append(desc_def.od_joiner);
found_desc->second.append(desc_elem_str.value());
}
}
desc_elem_str = nonstd::nullopt;
}
}
}
void
external_log_format::update_op_description(
const std::map<intern_string_t, opid_descriptors>& desc_defs,
log_op_description& lod)
{
nonstd::optional<std::string> desc_elem_str;
if (!lod.lod_id) {
for (const auto& desc_def_pair : desc_defs) {
if (lod.lod_id) {
break;
}
for (const auto& desc_def : *desc_def_pair.second.od_descriptors) {
auto desc_cap_iter
= this->lf_desc_captures.find(desc_def.od_field.pp_value);
if (desc_cap_iter == this->lf_desc_captures.end()) {
continue;
}
desc_elem_str = desc_def.matches(desc_cap_iter->second);
if (desc_elem_str) {
lod.lod_id = desc_def_pair.first;
}
}
}
}
if (lod.lod_id) {
const auto& desc_def_v
= *desc_defs.find(lod.lod_id.value())->second.od_descriptors;
auto& desc_v = lod.lod_elements;
if (desc_def_v.size() != desc_v.size()) {
for (size_t desc_def_index = 0; desc_def_index < desc_def_v.size();
desc_def_index++)
{
const auto& desc_def = desc_def_v[desc_def_index];
auto found_desc = desc_v.begin();
for (; found_desc != desc_v.end(); ++found_desc) {
if (found_desc->first == desc_def_index) {
break;
}
}
auto desc_cap_iter
= this->lf_desc_captures.find(desc_def.od_field.pp_value);
if (desc_cap_iter == this->lf_desc_captures.end()) {
continue;
}
if (!desc_elem_str) {
desc_elem_str = desc_def.matches(desc_cap_iter->second);
}
if (desc_elem_str) {
if (found_desc == desc_v.end()) {
desc_v.emplace_back(desc_def_index,
desc_elem_str.value());
} else if (!desc_elem_str->empty()) {
found_desc->second.append(desc_def.od_joiner);
found_desc->second.append(desc_elem_str.value());
}
}
desc_elem_str = nonstd::nullopt;
}
}
}
}
static bool
next_format(
const std::vector<std::shared_ptr<external_log_format::pattern>>& patterns,
int& index,
int& locked_index)
{
bool retval = true;
if (locked_index == -1) {
index += 1;
if (index >= (int) patterns.size()) {
retval = false;
}
} else if (index == locked_index) {
retval = false;
} else {
index = locked_index;
}
return retval;
}
bool
log_format::next_format(const pcre_format* fmt, int& index, int& locked_index)
{
bool retval = true;
if (locked_index == -1) {
index += 1;
if (fmt[index].name == nullptr) {
retval = false;
}
} else if (index == locked_index) {
retval = false;
} else {
index = locked_index;
}
return retval;
}
const char*
log_format::log_scanf(uint32_t line_number,
string_fragment line,
const pcre_format* fmt,
const char* time_fmt[],
struct exttm* tm_out,
struct timeval* tv_out,
string_fragment* ts_out,
nonstd::optional<string_fragment>* level_out)
{
int curr_fmt = -1;
const char* retval = nullptr;
bool done = false;
int pat_index = this->last_pattern_index();
while (!done && next_format(fmt, curr_fmt, pat_index)) {
static thread_local auto md = lnav::pcre2pp::match_data::unitialized();
auto match_res = fmt[curr_fmt]
.pcre->capture_from(line)
.into(md)
.matches(PCRE2_NO_UTF_CHECK)
.ignore_error();
if (!match_res) {
retval = nullptr;
} else {
auto ts = md[fmt[curr_fmt].pf_timestamp_index];
retval = this->lf_date_time.scan(
ts->data(), ts->length(), nullptr, tm_out, *tv_out);
if (retval == nullptr) {
auto ls = this->lf_date_time.unlock();
retval = this->lf_date_time.scan(
ts->data(), ts->length(), nullptr, tm_out, *tv_out);
if (retval != nullptr) {
auto old_flags
= this->lf_timestamp_flags & DATE_TIME_SET_FLAGS;
auto new_flags = tm_out->et_flags & DATE_TIME_SET_FLAGS;
// It is unlikely a valid timestamp would lose much
// precision.
if (new_flags != old_flags) {
retval = nullptr;
}
}
if (retval == nullptr) {
this->lf_date_time.relock(ls);
} else {
log_debug(
"%d: changed time format to '%s' due to %.*s",
line_number,
PTIMEC_FORMAT_STR[this->lf_date_time.dts_fmt_lock],
ts->length(),
ts->data());
}
}
if (retval) {
*ts_out = ts.value();
*level_out = md[2];
if (curr_fmt != pat_index) {
uint32_t lock_line;
if (this->lf_pattern_locks.empty()) {
lock_line = 0;
} else {
lock_line = line_number;
}
this->lf_pattern_locks.emplace_back(lock_line, curr_fmt);
}
this->lf_timestamp_flags = tm_out->et_flags;
done = true;
}
}
}
return retval;
}
void
log_format::check_for_new_year(std::vector<logline>& dst,
exttm etm,
struct timeval log_tv)
{
if (dst.empty()) {
return;
}
time_t diff = dst.back().get_time() - log_tv.tv_sec;
int off_year = 0, off_month = 0, off_day = 0, off_hour = 0;
bool do_change = true;
if (diff <= 0) {
return;
}
if ((etm.et_flags & ETF_MONTH_SET) && diff >= (24 * 60 * 60)) {
off_year = 1;
} else if (diff >= (24 * 60 * 60)) {
off_month = 1;
} else if (!(etm.et_flags & ETF_DAY_SET) && (diff >= (60 * 60))) {
off_day = 1;
} else if (!(etm.et_flags & ETF_HOUR_SET) && (diff >= 60)) {
off_hour = 1;
} else {
do_change = false;
}
if (!do_change) {
return;
}
log_debug("%d:detected time rollover; offsets=%d %d %d %d",
dst.size(),
off_year,
off_month,
off_day,
off_hour);
for (auto& ll : dst) {
time_t ot = ll.get_time();
struct tm otm;
gmtime_r(&ot, &otm);
if (otm.tm_year < off_year) {
otm.tm_year = 0;
} else {
otm.tm_year -= off_year;
}
otm.tm_mon -= off_month;
if (otm.tm_mon < 0) {
otm.tm_mon += 12;
}
auto new_time = tm2sec(&otm);
if (new_time == -1) {
continue;
}
new_time -= (off_day * 24 * 60 * 60) + (off_hour * 60 * 60);
ll.set_time(new_time);
}
}
/*
* XXX This needs some cleanup.
*/
struct json_log_userdata {
json_log_userdata(shared_buffer_ref& sbr, scan_batch_context* sbc)
: jlu_shared_buffer(sbr), jlu_batch_context(sbc)
{
}
void add_sub_lines_for(const intern_string_t ist,
bool top_level,
nonstd::optional<double> val = nonstd::nullopt,
const unsigned char* str = nullptr,
ssize_t len = -1)
{
auto res
= this->jlu_format->value_line_count(ist, top_level, val, str, len);
this->jlu_has_ansi |= res.vlcr_has_ansi;
if (!res.vlcr_valid_utf) {
this->jlu_valid_utf = false;
}
this->jlu_sub_line_count += res.vlcr_count;
this->jlu_quality += res.vlcr_line_format_count;
}
external_log_format* jlu_format{nullptr};
const logline* jlu_line{nullptr};
logline* jlu_base_line{nullptr};
int jlu_sub_line_count{1};
bool jlu_has_ansi{false};
bool jlu_valid_utf{true};
yajl_handle jlu_handle{nullptr};
const char* jlu_line_value{nullptr};
size_t jlu_line_size{0};
size_t jlu_sub_start{0};
uint32_t jlu_quality{0};
shared_buffer_ref& jlu_shared_buffer;
scan_batch_context* jlu_batch_context;
nonstd::optional<string_fragment> jlu_opid_frag;
nonstd::optional<std::string> jlu_subid;
};
static int read_json_field(yajlpp_parse_context* ypc,
const unsigned char* str,
size_t len);
static int
read_json_null(yajlpp_parse_context* ypc)
{
json_log_userdata* jlu = (json_log_userdata*) ypc->ypc_userdata;
const intern_string_t field_name = ypc->get_path();
jlu->add_sub_lines_for(field_name, ypc->is_level(1));
return 1;
}
static int
read_json_bool(yajlpp_parse_context* ypc, int val)
{
json_log_userdata* jlu = (json_log_userdata*) ypc->ypc_userdata;
const intern_string_t field_name = ypc->get_path();
jlu->add_sub_lines_for(field_name, ypc->is_level(1));
return 1;
}
static int
read_json_number(yajlpp_parse_context* ypc,
const char* numberVal,
size_t numberLen)
{
json_log_userdata* jlu = (json_log_userdata*) ypc->ypc_userdata;
const intern_string_t field_name = ypc->get_path();
auto number_frag = string_fragment::from_bytes(numberVal, numberLen);
auto scan_res = scn::scan_value<double>(number_frag.to_string_view());
if (!scan_res) {
log_error("invalid number %.*s", numberLen, numberVal);
return 0;
}
auto val = scan_res.value();
if (jlu->jlu_format->lf_timestamp_field == field_name) {
long long divisor = jlu->jlu_format->elf_timestamp_divisor;
struct timeval tv;
tv.tv_sec = val / divisor;
tv.tv_usec = fmod(val, divisor) * (1000000.0 / divisor);
if (jlu->jlu_format->lf_date_time.dts_local_time) {
struct tm ltm;
localtime_r(&tv.tv_sec, &ltm);
#ifdef HAVE_STRUCT_TM_TM_ZONE
ltm.tm_zone = nullptr;
#endif
ltm.tm_isdst = 0;
tv.tv_sec = tm2sec(&ltm);
}
jlu->jlu_base_line->set_time(tv);
} else if (jlu->jlu_format->lf_subsecond_field == field_name) {
uint64_t millis = 0;
switch (jlu->jlu_format->lf_subsecond_unit.value()) {
case log_format::subsecond_unit::milli:
millis = val;
break;
case log_format::subsecond_unit::micro:
millis = std::chrono::duration_cast<std::chrono::milliseconds>(
std::chrono::microseconds((int64_t) val))
.count();
break;
case log_format::subsecond_unit::nano:
millis = std::chrono::duration_cast<std::chrono::milliseconds>(
std::chrono::nanoseconds((int64_t) val))
.count();
break;
}
jlu->jlu_base_line->set_millis(millis);
} else if (jlu->jlu_format->elf_level_field == field_name) {
if (jlu->jlu_format->elf_level_pairs.empty()) {
jlu->jlu_base_line->set_level(jlu->jlu_format->convert_level(
number_frag, jlu->jlu_batch_context));
} else {
int64_t level_int = val;
for (const auto& pair : jlu->jlu_format->elf_level_pairs) {
if (pair.first == level_int) {
jlu->jlu_base_line->set_level(pair.second);
break;
}
}
}
}
jlu->add_sub_lines_for(field_name,
ypc->is_level(1),
val,
(const unsigned char*) numberVal,
numberLen);
return 1;
}
static int
json_array_start(void* ctx)
{
yajlpp_parse_context* ypc = (yajlpp_parse_context*) ctx;
json_log_userdata* jlu = (json_log_userdata*) ypc->ypc_userdata;
if (ypc->ypc_path_index_stack.size() == 2) {
const intern_string_t field_name = ypc->get_path_fragment_i(0);
jlu->add_sub_lines_for(field_name, true);
jlu->jlu_sub_start = yajl_get_bytes_consumed(jlu->jlu_handle) - 1;
}
return 1;
}
static int
json_array_end(void* ctx)
{
yajlpp_parse_context* ypc = (yajlpp_parse_context*) ctx;
json_log_userdata* jlu = (json_log_userdata*) ypc->ypc_userdata;
if (ypc->ypc_path_index_stack.size() == 1) {
const intern_string_t field_name = ypc->get_path_fragment_i(0);
size_t sub_end = yajl_get_bytes_consumed(jlu->jlu_handle);
jlu->jlu_format->jlf_line_values.lvv_values.emplace_back(
jlu->jlu_format->get_value_meta(field_name,
value_kind_t::VALUE_JSON),
string_fragment::from_byte_range(jlu->jlu_shared_buffer.get_data(),
jlu->jlu_sub_start,
sub_end));
}
return 1;
}
static const struct json_path_container json_log_handlers = {
yajlpp::pattern_property_handler("\\w+")
.add_cb(read_json_null)
.add_cb(read_json_bool)
.add_cb(read_json_number)
.add_cb(read_json_field),
};
static int rewrite_json_field(yajlpp_parse_context* ypc,
const unsigned char* str,
size_t len);
static int
rewrite_json_null(yajlpp_parse_context* ypc)
{
json_log_userdata* jlu = (json_log_userdata*) ypc->ypc_userdata;
const intern_string_t field_name = ypc->get_path();
if (!ypc->is_level(1) && !jlu->jlu_format->has_value_def(field_name)) {
return 1;
}
jlu->jlu_format->jlf_line_values.lvv_values.emplace_back(
jlu->jlu_format->get_value_meta(field_name, value_kind_t::VALUE_NULL));
return 1;
}
static int
rewrite_json_bool(yajlpp_parse_context* ypc, int val)
{
json_log_userdata* jlu = (json_log_userdata*) ypc->ypc_userdata;
const intern_string_t field_name = ypc->get_path();
if (!ypc->is_level(1) && !jlu->jlu_format->has_value_def(field_name)) {
return 1;
}
jlu->jlu_format->jlf_line_values.lvv_values.emplace_back(
jlu->jlu_format->get_value_meta(field_name,
value_kind_t::VALUE_BOOLEAN),
(bool) val);
return 1;
}
static int
rewrite_json_int(yajlpp_parse_context* ypc, long long val)
{
json_log_userdata* jlu = (json_log_userdata*) ypc->ypc_userdata;
const intern_string_t field_name = ypc->get_path();
if (!ypc->is_level(1) && !jlu->jlu_format->has_value_def(field_name)) {
return 1;
}
jlu->jlu_format->jlf_line_values.lvv_values.emplace_back(
jlu->jlu_format->get_value_meta(field_name,
value_kind_t::VALUE_INTEGER),
(int64_t) val);
return 1;
}
static int
rewrite_json_double(yajlpp_parse_context* ypc, double val)
{
json_log_userdata* jlu = (json_log_userdata*) ypc->ypc_userdata;
const intern_string_t field_name = ypc->get_path();
if (!ypc->is_level(1) && !jlu->jlu_format->has_value_def(field_name)) {
return 1;
}
jlu->jlu_format->jlf_line_values.lvv_values.emplace_back(
jlu->jlu_format->get_value_meta(field_name, value_kind_t::VALUE_FLOAT),
val);
return 1;
}
static const struct json_path_container json_log_rewrite_handlers = {
yajlpp::pattern_property_handler("\\w+")
.add_cb(rewrite_json_null)
.add_cb(rewrite_json_bool)
.add_cb(rewrite_json_int)
.add_cb(rewrite_json_double)
.add_cb(rewrite_json_field),
};
bool
external_log_format::scan_for_partial(shared_buffer_ref& sbr,
size_t& len_out) const
{
if (this->elf_type != elf_type_t::ELF_TYPE_TEXT) {
return false;
}
const auto& pat = this->elf_pattern_order[this->last_pattern_index()];
if (!this->lf_multiline) {
len_out = pat->p_pcre.pp_value->match_partial(sbr.to_string_fragment());
return true;
}
if (pat->p_timestamp_end == -1 || pat->p_timestamp_end > (int) sbr.length())
{
len_out = 0;
return false;
}
len_out = pat->p_pcre.pp_value->match_partial(sbr.to_string_fragment());
return (int) len_out > pat->p_timestamp_end;
}
std::vector<lnav::console::snippet>
external_log_format::get_snippets() const
{
std::vector<lnav::console::snippet> retval;
for (const auto& src_pair : this->elf_format_sources) {
retval.emplace_back(lnav::console::snippet::from(src_pair.first, "")
.with_line(src_pair.second));
}
return retval;
}
log_format::scan_result_t
external_log_format::scan(logfile& lf,
std::vector<logline>& dst,
const line_info& li,
shared_buffer_ref& sbr,
scan_batch_context& sbc)
{
if (dst.empty()) {
auto file_options = lf.get_file_options();
if (file_options) {
this->lf_date_time.dts_default_zone
= file_options->second.fo_default_zone.pp_value;
} else {
this->lf_date_time.dts_default_zone = nullptr;
}
}
if (this->elf_type == elf_type_t::ELF_TYPE_JSON) {
logline ll(li.li_file_range.fr_offset, 0, 0, LEVEL_INFO);
auto line_frag = sbr.to_string_fragment();
if (!line_frag.startswith("{")) {
if (!this->lf_specialized) {
return log_format::scan_no_match{"line is not a JSON object"};
}
ll.set_time(dst.back().get_timeval());
ll.set_level(LEVEL_INVALID);
dst.emplace_back(ll);
return log_format::scan_match{0};
}
auto& ypc = *(this->jlf_parse_context);
yajl_handle handle = this->jlf_yajl_handle.get();
json_log_userdata jlu(sbr, &sbc);
if (!this->lf_specialized && dst.size() >= 3) {
return log_format::scan_no_match{"file is not JSON-lines"};
}
if (li.li_partial) {
log_debug("skipping partial line at offset %d",
li.li_file_range.fr_offset);
if (this->lf_specialized) {
ll.set_level(LEVEL_INVALID);
dst.emplace_back(ll);
}
return log_format::scan_incomplete{};
}
const auto* line_data = (const unsigned char*) sbr.get_data();
this->lf_desc_captures.clear();
this->lf_desc_allocator.reset();
yajl_reset(handle);
ypc.set_static_handler(json_log_handlers.jpc_children[0]);
ypc.ypc_userdata = &jlu;
ypc.ypc_ignore_unused = true;
ypc.ypc_alt_callbacks.yajl_start_array = json_array_start;
ypc.ypc_alt_callbacks.yajl_start_map = json_array_start;
ypc.ypc_alt_callbacks.yajl_end_array = nullptr;
ypc.ypc_alt_callbacks.yajl_end_map = nullptr;
jlu.jlu_format = this;
jlu.jlu_base_line = &ll;
jlu.jlu_line_value = sbr.get_data();
jlu.jlu_line_size = sbr.length();
jlu.jlu_handle = handle;
if (yajl_parse(handle, line_data, sbr.length()) == yajl_status_ok
&& yajl_complete_parse(handle) == yajl_status_ok)
{
if (ll.get_time() == 0) {
if (this->lf_specialized) {
ll.set_ignore(true);
dst.emplace_back(ll);
return log_format::scan_match{0};
}
return log_format::scan_no_match{
"JSON message does not have expected timestamp property"};
}
if (jlu.jlu_opid_frag) {
auto opid_iter = sbc.sbc_opids.los_opid_ranges.find(
jlu.jlu_opid_frag.value());
if (opid_iter == sbc.sbc_opids.los_opid_ranges.end()) {
auto otr = opid_time_range{
time_range{ll.get_timeval(), ll.get_timeval()},
};
auto emplace_res = sbc.sbc_opids.los_opid_ranges.emplace(
jlu.jlu_opid_frag.value(), otr);
opid_iter = emplace_res.first;
} else {
opid_iter->second.otr_range.extend_to(ll.get_timeval());
}
opid_iter->second.otr_level_stats.update_msg_count(
ll.get_msg_level());
if (jlu.jlu_subid) {
auto subid_frag
= string_fragment::from_str(jlu.jlu_subid.value());
auto* ostr
= sbc.sbc_opids.sub_op_in_use(sbc.sbc_allocator,
opid_iter,
subid_frag,
ll.get_timeval(),
ll.get_msg_level());
if (ostr != nullptr && ostr->ostr_description.empty()) {
log_op_description sub_desc;
this->update_op_description(
*this->lf_subid_description_def, sub_desc);
if (!sub_desc.lod_elements.empty()) {
auto& sub_desc_def
= this->lf_subid_description_def->at(
sub_desc.lod_id.value());
ostr->ostr_description
= sub_desc_def.to_string(sub_desc.lod_elements);
}
}
}
auto& otr = opid_iter->second;
this->update_op_description(*this->lf_opid_description_def,
otr.otr_description);
}
jlu.jlu_sub_line_count += this->jlf_line_format_init_count;
for (int lpc = 0; lpc < jlu.jlu_sub_line_count; lpc++) {
ll.set_sub_offset(lpc);
if (lpc > 0) {
ll.set_level((log_level_t) (ll.get_level_and_flags()
| LEVEL_CONTINUED));
}
ll.set_has_ansi(jlu.jlu_has_ansi);
ll.set_valid_utf(jlu.jlu_valid_utf);
dst.emplace_back(ll);
}
} else {
unsigned char* msg;
int line_count = 2;
msg = yajl_get_error(
handle, 1, (const unsigned char*) sbr.get_data(), sbr.length());
if (msg != nullptr) {
auto msg_frag = string_fragment::from_c_str(msg);
log_debug("Unable to parse line at offset %d: %s",
li.li_file_range.fr_offset,
msg);
line_count = msg_frag.count('\n') + 1;
yajl_free_error(handle, msg);
}
if (!this->lf_specialized) {
return log_format::scan_no_match{"JSON parsing failed"};
}
for (int lpc = 0; lpc < line_count; lpc++) {
log_level_t level = LEVEL_INVALID;
ll.set_time(dst.back().get_timeval());
if (lpc > 0) {
level = (log_level_t) (level | LEVEL_CONTINUED);
}
ll.set_level(level);
ll.set_sub_offset(lpc);
dst.emplace_back(ll);
}
}
return log_format::scan_match{jlu.jlu_quality};
}
int curr_fmt = -1, orig_lock = this->last_pattern_index();
int pat_index = orig_lock;
auto line_sf = sbr.to_string_fragment();
while (::next_format(this->elf_pattern_order, curr_fmt, pat_index)) {
static thread_local auto md = lnav::pcre2pp::match_data::unitialized();
auto* fpat = this->elf_pattern_order[curr_fmt].get();
auto* pat = fpat->p_pcre.pp_value.get();
if (fpat->p_module_format) {
continue;
}
auto match_res = pat->capture_from(line_sf)
.into(md)
.matches(PCRE2_NO_UTF_CHECK)
.ignore_error();
if (!match_res) {
if (!this->lf_pattern_locks.empty() && pat_index != -1) {
curr_fmt = -1;
pat_index = -1;
}
continue;
}
auto ts = md[fpat->p_timestamp_field_index];
auto time_cap = md[fpat->p_time_field_index];
auto level_cap = md[fpat->p_level_field_index];
auto mod_cap = md[fpat->p_module_field_index];
auto opid_cap = md[fpat->p_opid_field_index];
auto subid_cap = md[fpat->p_subid_field_index];
auto body_cap = md[fpat->p_body_field_index];
const char* last;
struct exttm log_time_tm;
struct timeval log_tv;
uint8_t mod_index = 0, opid = 0;
char combined_datetime_buf[512];
if (ts && time_cap) {
auto ts_str_len = snprintf(combined_datetime_buf,
sizeof(combined_datetime_buf),
"%.*sT%.*s",
ts->length(),
ts->data(),
time_cap->length(),
time_cap->data());
ts = string_fragment::from_bytes(combined_datetime_buf, ts_str_len);
}
auto level = this->convert_level(
level_cap.value_or(string_fragment::invalid()), &sbc);
if (!ts) {
level = log_level_t::LEVEL_INVALID;
} else if ((last
= this->lf_date_time.scan(ts->data(),
ts->length(),
this->get_timestamp_formats(),
&log_time_tm,
log_tv))
== nullptr)
{
auto ls = this->lf_date_time.unlock();
if ((last = this->lf_date_time.scan(ts->data(),
ts->length(),
this->get_timestamp_formats(),
&log_time_tm,
log_tv))
== nullptr)
{
this->lf_date_time.relock(ls);
continue;
}
if (last != nullptr) {
auto old_flags = this->lf_timestamp_flags & DATE_TIME_SET_FLAGS;
auto new_flags = log_time_tm.et_flags & DATE_TIME_SET_FLAGS;
// It is unlikely a valid timestamp would lose much
// precision.
if (new_flags != old_flags) {
continue;
}
}
log_debug("%s:%d: date-time re-locked to %d",
lf.get_unique_path().c_str(),
dst.size(),
this->lf_date_time.dts_fmt_lock);
}
this->lf_timestamp_flags = log_time_tm.et_flags;
if (!(this->lf_timestamp_flags
& (ETF_MILLIS_SET | ETF_MICROS_SET | ETF_NANOS_SET))
&& !dst.empty() && dst.back().get_time() == log_tv.tv_sec
&& dst.back().get_millis() != 0)
{
auto log_ms = std::chrono::milliseconds(dst.back().get_millis());
log_time_tm.et_nsec
= std::chrono::duration_cast<std::chrono::nanoseconds>(log_ms)
.count();
log_tv.tv_usec
= std::chrono::duration_cast<std::chrono::microseconds>(log_ms)
.count();
}
if (!((log_time_tm.et_flags & ETF_DAY_SET)
&& (log_time_tm.et_flags & ETF_MONTH_SET)
&& (log_time_tm.et_flags & ETF_YEAR_SET)))
{
this->check_for_new_year(dst, log_time_tm, log_tv);
}
if (opid_cap && !opid_cap->empty()) {
auto opid_iter
= sbc.sbc_opids.los_opid_ranges.find(opid_cap.value());
if (opid_iter == sbc.sbc_opids.los_opid_ranges.end()) {
auto opid_copy = opid_cap->to_owned(sbc.sbc_allocator);
auto otr = opid_time_range{time_range{log_tv, log_tv}};
auto emplace_res
= sbc.sbc_opids.los_opid_ranges.emplace(opid_copy, otr);
opid_iter = emplace_res.first;
} else {
opid_iter->second.otr_range.extend_to(log_tv);
}
auto& otr = opid_iter->second;
otr.otr_level_stats.update_msg_count(level);
if (subid_cap && !subid_cap->empty()) {
auto* ostr = sbc.sbc_opids.sub_op_in_use(sbc.sbc_allocator,
opid_iter,
subid_cap.value(),
log_tv,
level);
if (ostr != nullptr && ostr->ostr_description.empty()) {
log_op_description sub_desc;
this->update_op_description(
*this->lf_subid_description_def, sub_desc, fpat, md);
if (!sub_desc.lod_elements.empty()) {
auto& sub_desc_def = this->lf_subid_description_def->at(
sub_desc.lod_id.value());
ostr->ostr_description
= sub_desc_def.to_string(sub_desc.lod_elements);
}
}
}
this->update_op_description(
*this->lf_opid_description_def, otr.otr_description, fpat, md);
opid = hash_str(opid_cap->data(), opid_cap->length());
}
if (mod_cap) {
intern_string_t mod_name = intern_string::lookup(mod_cap.value());
auto mod_iter = MODULE_FORMATS.find(mod_name);
if (mod_iter == MODULE_FORMATS.end()) {
mod_index = this->module_scan(body_cap.value(), mod_name);
mod_iter = MODULE_FORMATS.find(mod_name);
} else if (mod_iter->second.mf_mod_format) {
mod_index = mod_iter->second.mf_mod_format->lf_mod_index;
}
if (mod_index && level_cap && body_cap) {
auto mod_elf = std::dynamic_pointer_cast<external_log_format>(
mod_iter->second.mf_mod_format);
if (mod_elf) {
static thread_local auto mod_md
= lnav::pcre2pp::match_data::unitialized();
shared_buffer_ref body_ref;
body_cap->trim();
int mod_pat_index = mod_elf->last_pattern_index();
auto& mod_pat = *mod_elf->elf_pattern_order[mod_pat_index];
auto match_res = mod_pat.p_pcre.pp_value
->capture_from(body_cap.value())
.into(mod_md)
.matches(PCRE2_NO_UTF_CHECK)
.ignore_error();
if (match_res) {
auto mod_level_cap
= mod_md[mod_pat.p_level_field_index];
level = mod_elf->convert_level(
mod_level_cap.value_or(string_fragment::invalid()),
&sbc);
}
}
}
}
for (const auto& ivd : fpat->p_value_by_index) {
if (!ivd.ivd_value_def->vd_meta.lvm_values_index) {
continue;
}
auto cap = md[ivd.ivd_index];
if (cap && cap->is_valid()) {
auto& lvs = this->lf_value_stats[ivd.ivd_value_def->vd_meta
.lvm_values_index.value()];
if (cap->length() > lvs.lvs_width) {
lvs.lvs_width = cap->length();
}
}
}
for (auto value_index : fpat->p_numeric_value_indexes) {
const indexed_value_def& ivd = fpat->p_value_by_index[value_index];
const value_def& vd = *ivd.ivd_value_def;
auto num_cap = md[ivd.ivd_index];
if (num_cap && num_cap->is_valid()) {
const struct scaling_factor* scaling = nullptr;
if (ivd.ivd_unit_field_index >= 0) {
auto unit_cap = md[ivd.ivd_unit_field_index];
if (unit_cap && unit_cap->is_valid()) {
intern_string_t unit_val
= intern_string::lookup(unit_cap.value());
auto unit_iter = vd.vd_unit_scaling.find(unit_val);
if (unit_iter != vd.vd_unit_scaling.end()) {
const auto& sf = unit_iter->second;
scaling = &sf;
}
}
}
auto scan_res
= scn::scan_value<double>(num_cap->to_string_view());
if (scan_res) {
auto dvalue = scan_res.value();
if (scaling != nullptr) {
scaling->scale(dvalue);
}
this->lf_value_stats[vd.vd_meta.lvm_values_index.value()]
.add_value(dvalue);
}
}
}
dst.emplace_back(
li.li_file_range.fr_offset, log_tv, level, mod_index, opid);
if (orig_lock != curr_fmt) {
uint32_t lock_line;
log_debug("%s:%zu: changing pattern lock %d -> (%d)%s",
lf.get_unique_path().c_str(),
dst.size() - 1,
orig_lock,
curr_fmt,
this->elf_pattern_order[curr_fmt]->p_name.c_str());
if (this->lf_pattern_locks.empty()) {
lock_line = 0;
} else {
lock_line = dst.size() - 1;
}
this->lf_pattern_locks.emplace_back(lock_line, curr_fmt);
}
return log_format::scan_match{0};
}
if (this->lf_specialized && !this->lf_multiline) {
auto& last_line = dst.back();
log_debug("invalid line %d %d", dst.size(), li.li_file_range.fr_offset);
dst.emplace_back(li.li_file_range.fr_offset,
last_line.get_timeval(),
log_level_t::LEVEL_INVALID);
return log_format::scan_match{0};
}
return log_format::scan_no_match{"no patterns matched"};
}
uint8_t
external_log_format::module_scan(string_fragment body_cap,
const intern_string_t& mod_name)
{
uint8_t mod_index;
body_cap.trim();
auto& ext_fmts = GRAPH_ORDERED_FORMATS;
module_format mf;
for (auto& elf : ext_fmts) {
int curr_fmt = -1, fmt_lock = -1;
while (::next_format(elf->elf_pattern_order, curr_fmt, fmt_lock)) {
static thread_local auto md
= lnav::pcre2pp::match_data::unitialized();
auto& fpat = elf->elf_pattern_order[curr_fmt];
auto& pat = fpat->p_pcre;
if (!fpat->p_module_format) {
continue;
}
auto match_res = pat.pp_value->capture_from(body_cap)
.into(md)
.matches(PCRE2_NO_UTF_CHECK)
.ignore_error();
if (!match_res) {
continue;
}
log_debug("%s:module format found -- %s (%d)",
mod_name.get(),
elf->get_name().get(),
elf->lf_mod_index);
mod_index = elf->lf_mod_index;
mf.mf_mod_format = elf->specialized(curr_fmt);
MODULE_FORMATS[mod_name] = mf;
return mod_index;
}
}
MODULE_FORMATS[mod_name] = mf;
return 0;
}
void
external_log_format::annotate(uint64_t line_number,
string_attrs_t& sa,
logline_value_vector& values,
bool annotate_module) const
{
static thread_local auto md = lnav::pcre2pp::match_data::unitialized();
auto& line = values.lvv_sbr;
struct line_range lr;
line.erase_ansi();
if (this->elf_type != elf_type_t::ELF_TYPE_TEXT) {
if (this->jlf_cached_full) {
values = this->jlf_line_values;
sa = this->jlf_line_attrs;
} else {
values.lvv_sbr = this->jlf_line_values.lvv_sbr;
for (const auto& llv : this->jlf_line_values.lvv_values) {
if (this->jlf_cached_sub_range.contains(llv.lv_origin)) {
values.lvv_values.emplace_back(llv);
values.lvv_values.back().lv_origin.shift(
this->jlf_cached_sub_range.lr_start,
-this->jlf_cached_sub_range.lr_start);
}
}
for (const auto& attr : this->jlf_line_attrs) {
if (this->jlf_cached_sub_range.contains(attr.sa_range)) {
sa.emplace_back(attr);
}
}
}
return;
}
if (line.empty()) {
return;
}
values.lvv_values.reserve(this->elf_value_defs.size());
int pat_index = this->pattern_index_for_line(line_number);
auto& pat = *this->elf_pattern_order[pat_index];
sa.reserve(pat.p_pcre.pp_value->get_capture_count());
auto match_res
= pat.p_pcre.pp_value->capture_from(line.to_string_fragment())
.into(md)
.matches(PCRE2_NO_UTF_CHECK)
.ignore_error();
if (!match_res) {
// A continued line still needs a body.
lr.lr_start = 0;
lr.lr_end = line.length();
sa.emplace_back(lr, SA_BODY.value());
if (!this->lf_multiline) {
auto len
= pat.p_pcre.pp_value->match_partial(line.to_string_fragment());
sa.emplace_back(
line_range{(int) len, -1},
SA_INVALID.value("Log line does not match any pattern"));
}
return;
}
nonstd::optional<string_fragment> module_cap;
if (!pat.p_module_format) {
auto ts_cap = md[pat.p_timestamp_field_index];
if (ts_cap) {
sa.emplace_back(to_line_range(ts_cap.value()),
logline::L_TIMESTAMP.value());
}
if (pat.p_module_field_index != -1) {
module_cap = md[pat.p_module_field_index];
if (module_cap) {
sa.emplace_back(to_line_range(module_cap.value()),
logline::L_MODULE.value());
}
}
auto opid_cap = md[pat.p_opid_field_index];
if (opid_cap && !opid_cap->empty()) {
sa.emplace_back(to_line_range(opid_cap.value()),
logline::L_OPID.value());
}
}
auto body_cap = md[pat.p_body_field_index];
for (size_t lpc = 0; lpc < pat.p_value_by_index.size(); lpc++) {
const indexed_value_def& ivd = pat.p_value_by_index[lpc];
const struct scaling_factor* scaling = nullptr;
auto cap = md[ivd.ivd_index];
const auto& vd = *ivd.ivd_value_def;
if (ivd.ivd_unit_field_index >= 0) {
auto unit_cap = md[ivd.ivd_unit_field_index];
if (unit_cap) {
intern_string_t unit_val
= intern_string::lookup(unit_cap.value());
auto unit_iter = vd.vd_unit_scaling.find(unit_val);
if (unit_iter != vd.vd_unit_scaling.end()) {
const struct scaling_factor& sf = unit_iter->second;
scaling = &sf;
}
}
}
if (cap) {
values.lvv_values.emplace_back(
vd.vd_meta, line, to_line_range(cap.value()));
values.lvv_values.back().apply_scaling(scaling);
} else {
values.lvv_values.emplace_back(vd.vd_meta);
}
if (pat.p_module_format) {
values.lvv_values.back().lv_meta.lvm_from_module = true;
}
}
bool did_mod_annotate_body = false;
if (annotate_module && module_cap && body_cap && body_cap->is_valid()) {
intern_string_t mod_name = intern_string::lookup(module_cap.value());
auto mod_iter = MODULE_FORMATS.find(mod_name);
if (mod_iter != MODULE_FORMATS.end()
&& mod_iter->second.mf_mod_format != nullptr)
{
auto& mf = mod_iter->second;
body_cap->trim();
auto narrow_res
= line.narrow(body_cap->sf_begin, body_cap->length());
auto pre_mod_values_size = values.lvv_values.size();
auto pre_mod_sa_size = sa.size();
mf.mf_mod_format->annotate(line_number, sa, values, false);
for (size_t lpc = pre_mod_values_size;
lpc < values.lvv_values.size();
lpc++)
{
values.lvv_values[lpc].lv_origin.shift(0, body_cap->sf_begin);
}
for (size_t lpc = pre_mod_sa_size; lpc < sa.size(); lpc++) {
sa[lpc].sa_range.shift(0, body_cap->sf_begin);
}
line.widen(narrow_res);
did_mod_annotate_body = true;
}
}
if (!did_mod_annotate_body) {
if (body_cap && body_cap->is_valid()) {
lr = to_line_range(body_cap.value());
} else {
lr.lr_start = line.length();
lr.lr_end = line.length();
}
sa.emplace_back(lr, SA_BODY.value());
}
}
void
external_log_format::rewrite(exec_context& ec,
shared_buffer_ref& line,
string_attrs_t& sa,
std::string& value_out)
{
std::vector<logline_value>::iterator shift_iter;
auto& values = *ec.ec_line_values;
value_out.assign(line.get_data(), line.length());
for (auto iter = values.lvv_values.begin(); iter != values.lvv_values.end();
++iter)
{
if (!iter->lv_origin.is_valid()) {
log_debug("%d: not rewriting value with invalid origin -- %s",
ec.ec_top_line,
iter->lv_meta.lvm_name.get());
continue;
}
auto vd_iter = this->elf_value_defs.find(iter->lv_meta.lvm_name);
if (vd_iter == this->elf_value_defs.end()) {
log_debug("not rewriting undefined value -- %s",
iter->lv_meta.lvm_name.get());
continue;
}
const auto& vd = *vd_iter->second;
if (vd.vd_rewriter.empty()) {
continue;
}
auto _sg = ec.enter_source(
vd_iter->second->vd_rewrite_src_name, 1, vd.vd_rewriter);
std::string field_value;
auto exec_res = execute_any(ec, vd.vd_rewriter);
if (exec_res.isOk()) {
field_value = exec_res.unwrap();
} else {
field_value = exec_res.unwrapErr().to_attr_line().get_string();
}
value_out.erase(iter->lv_origin.lr_start, iter->lv_origin.length());
int32_t shift_amount
= ((int32_t) field_value.length()) - iter->lv_origin.length();
auto orig_lr = iter->lv_origin;
value_out.insert(iter->lv_origin.lr_start, field_value);
for (shift_iter = values.lvv_values.begin();
shift_iter != values.lvv_values.end();
++shift_iter)
{
shift_iter->lv_origin.shift_range(orig_lr, shift_amount);
}
shift_string_attrs(sa, orig_lr, shift_amount);
}
}
static int
read_json_field(yajlpp_parse_context* ypc, const unsigned char* str, size_t len)
{
json_log_userdata* jlu = (json_log_userdata*) ypc->ypc_userdata;
const intern_string_t field_name = ypc->get_path();
struct exttm tm_out;
struct timeval tv_out;
auto frag = string_fragment::from_bytes(str, len);
if (jlu->jlu_format->lf_timestamp_field == field_name) {
jlu->jlu_format->lf_date_time.scan(
(const char*) str,
len,
jlu->jlu_format->get_timestamp_formats(),
&tm_out,
tv_out);
// Leave off the machine oriented flag since we convert it anyhow
// in rewrite_json_field()
jlu->jlu_format->lf_timestamp_flags
= tm_out.et_flags & ~(ETF_MACHINE_ORIENTED | ETF_ZONE_SET);
jlu->jlu_base_line->set_time(tv_out);
} else if (jlu->jlu_format->elf_level_pointer.pp_value != nullptr) {
if (jlu->jlu_format->elf_level_pointer.pp_value
->find_in(field_name.to_string_fragment(), PCRE2_NO_UTF_CHECK)
.ignore_error()
.has_value())
{
jlu->jlu_base_line->set_level(
jlu->jlu_format->convert_level(frag, jlu->jlu_batch_context));
}
}
if (jlu->jlu_format->elf_level_field == field_name) {
jlu->jlu_base_line->set_level(
jlu->jlu_format->convert_level(frag, jlu->jlu_batch_context));
}
if (jlu->jlu_format->elf_opid_field == field_name) {
uint8_t opid = hash_str((const char*) str, len);
jlu->jlu_base_line->set_opid(opid);
auto& sbc = *jlu->jlu_batch_context;
auto opid_iter = sbc.sbc_opids.los_opid_ranges.find(frag);
if (opid_iter == sbc.sbc_opids.los_opid_ranges.end()) {
jlu->jlu_opid_frag = frag.to_owned(sbc.sbc_allocator);
} else {
jlu->jlu_opid_frag = opid_iter->first;
}
}
if (jlu->jlu_format->elf_subid_field == field_name) {
jlu->jlu_subid = frag.to_string();
}
if (jlu->jlu_format->lf_desc_fields.contains(field_name)) {
auto frag_copy = frag.to_owned(jlu->jlu_format->lf_desc_allocator);
jlu->jlu_format->lf_desc_captures.emplace(field_name, frag_copy);
}
jlu->add_sub_lines_for(
field_name, ypc->is_level(1), nonstd::nullopt, str, len);
return 1;
}
static int
rewrite_json_field(yajlpp_parse_context* ypc,
const unsigned char* str,
size_t len)
{
static const intern_string_t body_name = intern_string::lookup("body", -1);
json_log_userdata* jlu = (json_log_userdata*) ypc->ypc_userdata;
const intern_string_t field_name = ypc->get_path();
if (jlu->jlu_format->lf_timestamp_field == field_name) {
char time_buf[64];
// TODO add a timeval kind to logline_value
if (jlu->jlu_line->is_time_skewed()) {
struct timeval tv;
struct exttm tm;
jlu->jlu_format->lf_date_time.scan(
(const char*) str,
len,
jlu->jlu_format->get_timestamp_formats(),
&tm,
tv);
sql_strftime(time_buf, sizeof(time_buf), tv, 'T');
} else {
sql_strftime(
time_buf, sizeof(time_buf), jlu->jlu_line->get_timeval(), 'T');
}
jlu->jlu_format->jlf_line_values.lvv_values.emplace_back(
jlu->jlu_format->get_value_meta(field_name,
value_kind_t::VALUE_TEXT),
std::string{time_buf});
} else if (jlu->jlu_shared_buffer.contains((const char*) str)) {
auto str_offset = (int) ((const char*) str - jlu->jlu_line_value);
if (field_name == jlu->jlu_format->elf_body_field) {
jlu->jlu_format->jlf_line_values.lvv_values.emplace_back(
logline_value_meta(body_name,
value_kind_t::VALUE_TEXT,
logline_value_meta::internal_column{},
jlu->jlu_format),
string_fragment::from_byte_range(
jlu->jlu_shared_buffer.get_data(),
str_offset,
str_offset + len));
}
if (!ypc->is_level(1) && !jlu->jlu_format->has_value_def(field_name)) {
return 1;
}
jlu->jlu_format->jlf_line_values.lvv_values.emplace_back(
jlu->jlu_format->get_value_meta(field_name,
value_kind_t::VALUE_TEXT),
string_fragment::from_byte_range(jlu->jlu_shared_buffer.get_data(),
str_offset,
str_offset + len));
} else {
if (field_name == jlu->jlu_format->elf_body_field) {
jlu->jlu_format->jlf_line_values.lvv_values.emplace_back(
logline_value_meta(body_name,
value_kind_t::VALUE_TEXT,
logline_value_meta::internal_column{},
jlu->jlu_format),
std::string{(const char*) str, len});
}
if (!ypc->is_level(1) && !jlu->jlu_format->has_value_def(field_name)) {
return 1;
}
jlu->jlu_format->jlf_line_values.lvv_values.emplace_back(
jlu->jlu_format->get_value_meta(field_name,
value_kind_t::VALUE_TEXT),
std::string{(const char*) str, len});
}
return 1;
}
void
external_log_format::get_subline(const logline& ll,
shared_buffer_ref& sbr,
bool full_message)
{
if (this->elf_type == elf_type_t::ELF_TYPE_TEXT) {
return;
}
if (this->jlf_cached_offset != ll.get_offset()
|| this->jlf_cached_full != full_message)
{
auto& ypc = *(this->jlf_parse_context);
yajl_handle handle = this->jlf_yajl_handle.get();
json_log_userdata jlu(sbr, nullptr);
this->jlf_share_manager.invalidate_refs();
this->jlf_cached_line.clear();
this->jlf_line_values.clear();
this->jlf_line_offsets.clear();
this->jlf_line_attrs.clear();
auto line_frag = sbr.to_string_fragment();
if (!line_frag.startswith("{")) {
this->jlf_cached_line.resize(line_frag.length());
memcpy(this->jlf_cached_line.data(),
line_frag.data(),
line_frag.length());
this->jlf_line_values.clear();
sbr.share(this->jlf_share_manager,
&this->jlf_cached_line[0],
this->jlf_cached_line.size());
this->jlf_line_values.lvv_sbr = sbr;
this->jlf_line_attrs.emplace_back(
line_range{0, -1},
SA_INVALID.value(fmt::format(
FMT_STRING("line at offset {} is not a JSON-line"),
ll.get_offset())));
return;
}
yajl_reset(handle);
ypc.set_static_handler(json_log_rewrite_handlers.jpc_children[0]);
ypc.ypc_userdata = &jlu;
ypc.ypc_ignore_unused = true;
ypc.ypc_alt_callbacks.yajl_start_array = json_array_start;
ypc.ypc_alt_callbacks.yajl_end_array = json_array_end;
ypc.ypc_alt_callbacks.yajl_start_map = json_array_start;
ypc.ypc_alt_callbacks.yajl_end_map = json_array_end;
jlu.jlu_format = this;
jlu.jlu_line = &ll;
jlu.jlu_handle = handle;
jlu.jlu_line_value = sbr.get_data();
yajl_status parse_status = yajl_parse(
handle, (const unsigned char*) sbr.get_data(), sbr.length());
if (parse_status != yajl_status_ok
|| yajl_complete_parse(handle) != yajl_status_ok)
{
unsigned char* msg;
std::string full_msg;
msg = yajl_get_error(
handle, 1, (const unsigned char*) sbr.get_data(), sbr.length());
if (msg != nullptr) {
full_msg = fmt::format(
FMT_STRING("[offset: {}] {}\n{}"),
ll.get_offset(),
fmt::string_view{sbr.get_data(), sbr.length()},
reinterpret_cast<char*>(msg));
yajl_free_error(handle, msg);
}
this->jlf_cached_line.resize(full_msg.size());
memcpy(
this->jlf_cached_line.data(), full_msg.data(), full_msg.size());
this->jlf_line_values.clear();
this->jlf_line_attrs.emplace_back(
line_range{0, -1},
SA_INVALID.value("JSON line failed to parse"));
} else {
std::vector<logline_value>::iterator lv_iter;
bool used_values[this->jlf_line_values.lvv_values.size()];
struct line_range lr;
memset(used_values, 0, sizeof(used_values));
for (lv_iter = this->jlf_line_values.lvv_values.begin();
lv_iter != this->jlf_line_values.lvv_values.end();
++lv_iter)
{
lv_iter->lv_meta.lvm_format = this;
}
int sub_offset = 1 + this->jlf_line_format_init_count;
for (const auto& jfe : this->jlf_line_format) {
static const intern_string_t ts_field
= intern_string::lookup("__timestamp__", -1);
static const intern_string_t level_field
= intern_string::lookup("__level__");
size_t begin_size = this->jlf_cached_line.size();
switch (jfe.jfe_type) {
case json_log_field::CONSTANT:
this->json_append_to_cache(
jfe.jfe_default_value.c_str(),
jfe.jfe_default_value.size());
break;
case json_log_field::VARIABLE:
lv_iter = find_if(
this->jlf_line_values.lvv_values.begin(),
this->jlf_line_values.lvv_values.end(),
logline_value_cmp(&jfe.jfe_value.pp_value));
if (lv_iter != this->jlf_line_values.lvv_values.end()) {
auto str = lv_iter->to_string();
while (endswith(str, "\n")) {
str.pop_back();
}
size_t nl_pos = str.find('\n');
if (!jfe.jfe_prefix.empty()) {
this->json_append_to_cache(jfe.jfe_prefix);
}
lr.lr_start = this->jlf_cached_line.size();
if ((int) str.size() > jfe.jfe_max_width) {
switch (jfe.jfe_overflow) {
case json_format_element::overflow_t::
ABBREV: {
this->json_append_to_cache(str.c_str(),
str.size());
size_t new_size = abbreviate_str(
&this->jlf_cached_line[lr.lr_start],
str.size(),
jfe.jfe_max_width);
this->jlf_cached_line.resize(
lr.lr_start + new_size);
break;
}
case json_format_element::overflow_t::
TRUNCATE: {
this->json_append_to_cache(
str.c_str(), jfe.jfe_max_width);
break;
}
case json_format_element::overflow_t::
DOTDOT: {
size_t middle
= (jfe.jfe_max_width / 2) - 1;
this->json_append_to_cache(str.c_str(),
middle);
this->json_append_to_cache("..", 2);
size_t rest
= (jfe.jfe_max_width - middle - 2);
this->json_append_to_cache(
str.c_str() + str.size() - rest,
rest);
break;
}
}
} else {
value_def* vd = nullptr;
if (lv_iter->lv_meta.lvm_values_index) {
vd = this->elf_value_def_order
[lv_iter->lv_meta.lvm_values_index
.value()]
.get();
}
sub_offset
+= std::count(str.begin(), str.end(), '\n');
this->json_append(
jfe, vd, str.c_str(), str.size());
}
if (nl_pos == std::string::npos || full_message) {
lr.lr_end = this->jlf_cached_line.size();
} else {
lr.lr_end = lr.lr_start + nl_pos;
}
if (lv_iter->lv_meta.lvm_name
== this->lf_timestamp_field)
{
this->jlf_line_attrs.emplace_back(
lr, logline::L_TIMESTAMP.value());
} else if (lv_iter->lv_meta.lvm_name
== this->elf_body_field)
{
this->jlf_line_attrs.emplace_back(
lr, SA_BODY.value());
} else if (lv_iter->lv_meta.lvm_name
== this->elf_opid_field
&& !lr.empty())
{
this->jlf_line_attrs.emplace_back(
lr, logline::L_OPID.value());
}
lv_iter->lv_origin = lr;
used_values[std::distance(
this->jlf_line_values.lvv_values.begin(),
lv_iter)]
= true;
if (!jfe.jfe_suffix.empty()) {
this->json_append_to_cache(jfe.jfe_suffix);
}
} else if (jfe.jfe_value.pp_value == ts_field) {
struct line_range lr;
ssize_t ts_len;
char ts[64];
if (jfe.jfe_ts_format.empty()) {
ts_len = sql_strftime(
ts, sizeof(ts), ll.get_timeval(), 'T');
} else {
struct exttm et;
ll.to_exttm(et);
ts_len = ftime_fmt(ts,
sizeof(ts),
jfe.jfe_ts_format.c_str(),
et);
}
lr.lr_start = this->jlf_cached_line.size();
this->json_append_to_cache(ts, ts_len);
lr.lr_end = this->jlf_cached_line.size();
this->jlf_line_attrs.emplace_back(
lr, logline::L_TIMESTAMP.value());
lv_iter = find_if(
this->jlf_line_values.lvv_values.begin(),
this->jlf_line_values.lvv_values.end(),
logline_value_cmp(&this->lf_timestamp_field));
if (lv_iter
!= this->jlf_line_values.lvv_values.end())
{
used_values[distance(
this->jlf_line_values.lvv_values.begin(),
lv_iter)]
= true;
}
} else if (jfe.jfe_value.pp_value == level_field
|| jfe.jfe_value.pp_value
== this->elf_level_field)
{
const auto* level_name = ll.get_level_name();
auto level_len = strlen(level_name);
this->json_append(
jfe, nullptr, level_name, level_len);
if (jfe.jfe_auto_width) {
this->json_append_to_cache(MAX_LEVEL_NAME_LEN
- level_len);
}
} else if (!jfe.jfe_default_value.empty()) {
if (!jfe.jfe_prefix.empty()) {
this->json_append_to_cache(jfe.jfe_prefix);
}
this->json_append(jfe,
nullptr,
jfe.jfe_default_value.c_str(),
jfe.jfe_default_value.size());
if (!jfe.jfe_suffix.empty()) {
this->json_append_to_cache(jfe.jfe_suffix);
}
}
switch (jfe.jfe_text_transform) {
case external_log_format::json_format_element::
transform_t::NONE:
break;
case external_log_format::json_format_element::
transform_t::UPPERCASE:
for (size_t cindex = begin_size;
cindex < this->jlf_cached_line.size();
cindex++)
{
this->jlf_cached_line[cindex] = toupper(
this->jlf_cached_line[cindex]);
}
break;
case external_log_format::json_format_element::
transform_t::LOWERCASE:
for (size_t cindex = begin_size;
cindex < this->jlf_cached_line.size();
cindex++)
{
this->jlf_cached_line[cindex] = tolower(
this->jlf_cached_line[cindex]);
}
break;
case external_log_format::json_format_element::
transform_t::CAPITALIZE:
for (size_t cindex = begin_size;
cindex < begin_size + 1;
cindex++)
{
this->jlf_cached_line[cindex] = toupper(
this->jlf_cached_line[cindex]);
}
for (size_t cindex = begin_size + 1;
cindex < this->jlf_cached_line.size();
cindex++)
{
this->jlf_cached_line[cindex] = tolower(
this->jlf_cached_line[cindex]);
}
break;
}
break;
}
}
this->json_append_to_cache("\n", 1);
for (size_t lpc = 0; lpc < this->jlf_line_values.lvv_values.size();
lpc++)
{
static const intern_string_t body_name
= intern_string::lookup("body", -1);
auto& lv = this->jlf_line_values.lvv_values[lpc];
if (lv.lv_meta.is_hidden() || used_values[lpc]
|| body_name == lv.lv_meta.lvm_name)
{
continue;
}
auto str = lv.to_string();
while (endswith(str, "\n")) {
str.pop_back();
}
lv.lv_sub_offset = sub_offset;
lv.lv_origin.lr_start = this->jlf_cached_line.size() + 2
+ lv.lv_meta.lvm_name.size() + 2;
auto frag = string_fragment::from_str(str);
while (true) {
auto utf_scan_res = is_utf8(frag, '\n');
this->json_append_to_cache(" ", 2);
this->json_append_to_cache(
lv.lv_meta.lvm_name.to_string_fragment());
this->json_append_to_cache(": ", 2);
this->json_append_to_cache(utf_scan_res.usr_valid_frag);
this->json_append_to_cache("\n", 1);
sub_offset += 1;
if (utf_scan_res.usr_remaining) {
frag = utf_scan_res.usr_remaining.value();
} else {
break;
}
}
lv.lv_origin.lr_end = this->jlf_cached_line.size() - 1;
if (lv.lv_meta.lvm_name == this->elf_opid_field
&& !lv.lv_origin.empty())
{
this->jlf_line_attrs.emplace_back(lv.lv_origin,
logline::L_OPID.value());
}
}
}
this->jlf_line_offsets.push_back(0);
for (size_t lpc = 0; lpc < this->jlf_cached_line.size(); lpc++) {
if (this->jlf_cached_line[lpc] == '\n') {
this->jlf_line_offsets.push_back(lpc + 1);
}
}
this->jlf_line_offsets.push_back(this->jlf_cached_line.size());
this->jlf_cached_offset = ll.get_offset();
this->jlf_cached_full = full_message;
}
off_t this_off = 0, next_off = 0;
if (!this->jlf_line_offsets.empty()
&& ll.get_sub_offset() < this->jlf_line_offsets.size())
{
require(ll.get_sub_offset() < this->jlf_line_offsets.size());
this_off = this->jlf_line_offsets[ll.get_sub_offset()];
if ((ll.get_sub_offset() + 1) < (int) this->jlf_line_offsets.size()) {
next_off = this->jlf_line_offsets[ll.get_sub_offset() + 1];
} else {
next_off = this->jlf_cached_line.size();
}
if (next_off > 0 && this->jlf_cached_line[next_off - 1] == '\n'
&& this_off != next_off)
{
next_off -= 1;
}
}
if (full_message) {
sbr.share(this->jlf_share_manager,
&this->jlf_cached_line[0],
this->jlf_cached_line.size());
} else {
sbr.share(this->jlf_share_manager,
this->jlf_cached_line.data() + this_off,
next_off - this_off);
}
sbr.get_metadata().m_valid_utf = ll.is_valid_utf();
sbr.get_metadata().m_has_ansi = ll.has_ansi();
this->jlf_cached_sub_range.lr_start = this_off;
this->jlf_cached_sub_range.lr_end = next_off;
this->jlf_line_values.lvv_sbr = sbr;
}
struct compiled_header_expr {
auto_mem<sqlite3_stmt> che_stmt{sqlite3_finalize};
bool che_enabled{true};
};
struct format_header_expressions : public lnav_config_listener {
format_header_expressions() : lnav_config_listener(__FILE__) {}
auto_sqlite3 e_db;
std::map<intern_string_t, std::map<std::string, compiled_header_expr>>
e_header_exprs;
};
using safe_format_header_expressions = safe::Safe<format_header_expressions>;
static safe_format_header_expressions format_header_exprs;
nonstd::optional<external_file_format>
detect_mime_type(const ghc::filesystem::path& filename)
{
uint8_t buffer[1024];
size_t buffer_size = 0;
{
auto_fd fd;
if ((fd = lnav::filesystem::openp(filename, O_RDONLY)) == -1) {
return nonstd::nullopt;
}
ssize_t rc;
if ((rc = read(fd, buffer, sizeof(buffer))) == -1) {
return nonstd::nullopt;
}
buffer_size = rc;
}
auto hexbuf = auto_buffer::alloc(buffer_size * 2);
for (size_t lpc = 0; lpc < buffer_size; lpc++) {
fmt::format_to(
std::back_inserter(hexbuf), FMT_STRING("{:02x}"), buffer[lpc]);
}
safe::WriteAccess<safe_format_header_expressions> in(format_header_exprs);
for (const auto& format : log_format::get_root_formats()) {
auto elf = std::dynamic_pointer_cast<external_log_format>(format);
if (elf == nullptr) {
continue;
}
if (elf->elf_converter.c_header.h_exprs.he_exprs.empty()) {
continue;
}
if (buffer_size < elf->elf_converter.c_header.h_size) {
log_debug(
"%s: file content too small (%d) for header detection: %s",
filename.c_str(),
buffer_size,
elf->get_name().get());
continue;
}
for (const auto& hpair : elf->elf_converter.c_header.h_exprs.he_exprs) {
auto& he = in->e_header_exprs[elf->get_name()][hpair.first];
if (!he.che_enabled) {
continue;
}
auto* stmt = he.che_stmt.in();
if (stmt == nullptr) {
continue;
}
sqlite3_reset(stmt);
auto count = sqlite3_bind_parameter_count(stmt);
for (int lpc = 0; lpc < count; lpc++) {
const auto* name = sqlite3_bind_parameter_name(stmt, lpc + 1);
if (name[0] == '$') {
const char* env_value;
if ((env_value = getenv(&name[1])) != nullptr) {
sqlite3_bind_text(
stmt, lpc + 1, env_value, -1, SQLITE_STATIC);
}
continue;
}
if (strcmp(name, ":header") == 0) {
sqlite3_bind_text(stmt,
lpc + 1,
hexbuf.in(),
hexbuf.size(),
SQLITE_STATIC);
continue;
}
if (strcmp(name, ":filepath") == 0) {
sqlite3_bind_text(
stmt, lpc + 1, filename.c_str(), -1, SQLITE_STATIC);
continue;
}
}
auto step_res = sqlite3_step(stmt);
switch (step_res) {
case SQLITE_OK:
case SQLITE_DONE:
continue;
case SQLITE_ROW:
break;
default: {
log_error(
"failed to execute file-format header expression: "
"%s:%s -- %s",
elf->get_name().get(),
hpair.first.c_str(),
sqlite3_errmsg(in->e_db));
he.che_enabled = false;
continue;
}
}
log_info("detected format for: %s -- %s (header-expr: %s)",
filename.c_str(),
elf->get_name().get(),
hpair.first.c_str());
return external_file_format{
elf->get_name().to_string(),
elf->elf_converter.c_command.pp_value,
elf->elf_converter.c_command.pp_location.sl_source.to_string(),
};
}
}
return nonstd::nullopt;
}
void
external_log_format::build(std::vector<lnav::console::user_message>& errors)
{
if (!this->lf_timestamp_field.empty()) {
auto& vd = this->elf_value_defs[this->lf_timestamp_field];
if (vd.get() == nullptr) {
vd = std::make_shared<external_log_format::value_def>(
this->lf_timestamp_field,
value_kind_t::VALUE_TEXT,
logline_value_meta::internal_column{},
this);
}
vd->vd_meta.lvm_name = this->lf_timestamp_field;
vd->vd_meta.lvm_kind = value_kind_t::VALUE_TEXT;
vd->vd_meta.lvm_column = logline_value_meta::internal_column{};
vd->vd_internal = true;
}
if (startswith(this->elf_level_field.get(), "/")) {
this->elf_level_field
= intern_string::lookup(this->elf_level_field.get() + 1);
}
if (!this->elf_level_field.empty()
&& this->elf_value_defs.find(this->elf_level_field)
== this->elf_value_defs.end())
{
auto& vd = this->elf_value_defs[this->elf_level_field];
if (vd.get() == nullptr) {
vd = std::make_shared<external_log_format::value_def>(
this->elf_level_field,
value_kind_t::VALUE_TEXT,
logline_value_meta::internal_column{},
this);
}
vd->vd_meta.lvm_name = this->elf_level_field;
vd->vd_meta.lvm_kind = value_kind_t::VALUE_TEXT;
vd->vd_meta.lvm_column = logline_value_meta::internal_column{};
vd->vd_internal = true;
}
if (!this->elf_body_field.empty()) {
auto& vd = this->elf_value_defs[this->elf_body_field];
if (vd.get() == nullptr) {
vd = std::make_shared<external_log_format::value_def>(
this->elf_body_field,
value_kind_t::VALUE_TEXT,
logline_value_meta::internal_column{},
this);
}
vd->vd_meta.lvm_name = this->elf_body_field;
vd->vd_meta.lvm_kind = value_kind_t::VALUE_TEXT;
vd->vd_meta.lvm_column = logline_value_meta::internal_column{};
vd->vd_internal = true;
}
if (!this->lf_timestamp_format.empty()) {
this->lf_timestamp_format.push_back(nullptr);
}
for (auto iter = this->elf_patterns.begin();
iter != this->elf_patterns.end();
++iter)
{
pattern& pat = *iter->second;
if (pat.p_pcre.pp_value == nullptr) {
continue;
}
if (pat.p_module_format) {
this->elf_has_module_format = true;
}
for (auto named_cap : pat.p_pcre.pp_value->get_named_captures()) {
const intern_string_t name
= intern_string::lookup(named_cap.get_name());
if (name == this->lf_timestamp_field) {
pat.p_timestamp_field_index = named_cap.get_index();
}
if (name == this->lf_time_field) {
pat.p_time_field_index = named_cap.get_index();
}
if (name == this->elf_level_field) {
pat.p_level_field_index = named_cap.get_index();
}
if (name == this->elf_module_id_field) {
pat.p_module_field_index = named_cap.get_index();
}
if (name == this->elf_opid_field) {
pat.p_opid_field_index = named_cap.get_index();
}
if (name == this->elf_subid_field) {
pat.p_subid_field_index = named_cap.get_index();
}
if (name == this->elf_body_field) {
pat.p_body_field_index = named_cap.get_index();
}
auto value_iter = this->elf_value_defs.find(name);
if (value_iter != this->elf_value_defs.end()) {
auto vd = value_iter->second;
indexed_value_def ivd;
ivd.ivd_index = named_cap.get_index();
if (!vd->vd_unit_field.empty()) {
ivd.ivd_unit_field_index = pat.p_pcre.pp_value->name_index(
vd->vd_unit_field.get());
} else {
ivd.ivd_unit_field_index = -1;
}
if (!vd->vd_internal
&& !vd->vd_meta.lvm_column
.is<logline_value_meta::table_column>())
{
vd->vd_meta.lvm_column = logline_value_meta::table_column{
this->elf_column_count++};
}
ivd.ivd_value_def = vd;
pat.p_value_by_index.push_back(ivd);
}
pat.p_value_name_to_index[name] = named_cap.get_index();
}
stable_sort(pat.p_value_by_index.begin(), pat.p_value_by_index.end());
for (int lpc = 0; lpc < (int) pat.p_value_by_index.size(); lpc++) {
auto& ivd = pat.p_value_by_index[lpc];
auto vd = ivd.ivd_value_def;
if (!vd->vd_foreign_key && !vd->vd_meta.lvm_identifier) {
switch (vd->vd_meta.lvm_kind) {
case value_kind_t::VALUE_INTEGER:
case value_kind_t::VALUE_FLOAT:
pat.p_numeric_value_indexes.push_back(lpc);
break;
default:
break;
}
}
}
if (!pat.p_module_format && pat.p_timestamp_field_index == -1) {
errors.emplace_back(
lnav::console::user_message::error(
attr_line_t("invalid pattern: ")
.append_quoted(lnav::roles::symbol(pat.p_config_path)))
.with_reason("no timestamp capture found in the pattern")
.with_snippets(this->get_snippets())
.with_help("all log messages need a timestamp"));
}
if (!this->elf_level_field.empty() && pat.p_level_field_index == -1) {
log_warning("%s:level field '%s' not found in pattern",
pat.p_config_path.c_str(),
this->elf_level_field.get());
}
if (!this->elf_module_id_field.empty()
&& pat.p_module_field_index == -1)
{
log_warning("%s:module field '%s' not found in pattern",
pat.p_config_path.c_str(),
this->elf_module_id_field.get());
}
if (!this->elf_body_field.empty() && pat.p_body_field_index == -1) {
log_warning("%s:body field '%s' not found in pattern",
pat.p_config_path.c_str(),
this->elf_body_field.get());
}
this->elf_pattern_order.push_back(iter->second);
}
if (this->elf_type != elf_type_t::ELF_TYPE_TEXT) {
if (!this->elf_patterns.empty()) {
errors.emplace_back(
lnav::console::user_message::error(
attr_line_t()
.append_quoted(
lnav::roles::symbol(this->elf_name.to_string()))
.append(" is not a valid log format"))
.with_reason("structured logs cannot have regexes")
.with_snippets(this->get_snippets()));
}
if (this->elf_type == elf_type_t::ELF_TYPE_JSON) {
this->lf_multiline = true;
this->lf_structured = true;
this->jlf_parse_context
= std::make_shared<yajlpp_parse_context>(this->elf_name);
this->jlf_yajl_handle.reset(
yajl_alloc(&this->jlf_parse_context->ypc_callbacks,
nullptr,
this->jlf_parse_context.get()),
yajl_handle_deleter());
yajl_config(
this->jlf_yajl_handle.get(), yajl_dont_validate_strings, 1);
}
} else {
if (this->elf_patterns.empty()) {
errors.emplace_back(lnav::console::user_message::error(
attr_line_t()
.append_quoted(lnav::roles::symbol(
this->elf_name.to_string()))
.append(" is not a valid log format"))
.with_reason("no regexes specified")
.with_snippets(this->get_snippets()));
}
}
stable_sort(this->elf_level_pairs.begin(), this->elf_level_pairs.end());
{
safe::WriteAccess<safe_format_header_expressions> hexprs(
format_header_exprs);
if (hexprs->e_db.in() == nullptr) {
if (sqlite3_open(":memory:", hexprs->e_db.out()) != SQLITE_OK) {
log_error("unable to open memory DB");
return;
}
register_sqlite_funcs(hexprs->e_db.in(), sqlite_registration_funcs);
}
for (const auto& hpair : this->elf_converter.c_header.h_exprs.he_exprs)
{
auto stmt_str
= fmt::format(FMT_STRING("SELECT 1 WHERE {}"), hpair.second);
compiled_header_expr che;
log_info("preparing file-format header expression: %s",
stmt_str.c_str());
auto retcode = sqlite3_prepare_v2(hexprs->e_db.in(),
stmt_str.c_str(),
stmt_str.size(),
che.che_stmt.out(),
nullptr);
if (retcode != SQLITE_OK) {
auto sql_al = attr_line_t(hpair.second)
.with_attr_for_all(SA_PREFORMATTED.value())
.with_attr_for_all(
VC_ROLE.value(role_t::VCR_QUOTED_CODE));
readline_sqlite_highlighter(sql_al, -1);
intern_string_t watch_expr_path = intern_string::lookup(
fmt::format(FMT_STRING("/{}/converter/header/expr/{}"),
this->elf_name,
hpair.first));
auto snippet = lnav::console::snippet::from(
source_location(watch_expr_path), sql_al);
auto um = lnav::console::user_message::error(
"SQL expression is invalid")
.with_reason(sqlite3_errmsg(hexprs->e_db.in()))
.with_snippet(snippet);
errors.emplace_back(um);
continue;
}
hexprs->e_header_exprs[this->elf_name][hpair.first]
= std::move(che);
}
if (!this->elf_converter.c_header.h_exprs.he_exprs.empty()
&& this->elf_converter.c_command.pp_value.empty())
{
auto um = lnav::console::user_message::error(
"A command is required when a converter is defined")
.with_help(
"The converter command transforms the file "
"into a format that can be consumed by lnav")
.with_snippets(this->get_snippets());
errors.emplace_back(um);
}
}
for (auto& vd : this->elf_value_def_order) {
std::vector<std::string>::iterator act_iter;
vd->vd_meta.lvm_format = this;
if (!vd->vd_internal
&& !vd->vd_meta.lvm_column.is<logline_value_meta::table_column>())
{
vd->vd_meta.lvm_column
= logline_value_meta::table_column{this->elf_column_count++};
}
if (vd->vd_meta.lvm_kind == value_kind_t::VALUE_UNKNOWN) {
vd->vd_meta.lvm_kind = value_kind_t::VALUE_TEXT;
}
if (this->elf_type == elf_type_t::ELF_TYPE_TEXT) {
std::set<std::string> available_captures;
bool found_in_pattern = false;
for (const auto& pat : this->elf_patterns) {
if (pat.second->p_pcre.pp_value == nullptr) {
continue;
}
auto cap_index = pat.second->p_pcre.pp_value->name_index(
vd->vd_meta.lvm_name.get());
if (cap_index >= 0) {
found_in_pattern = true;
break;
}
for (auto named_cap :
pat.second->p_pcre.pp_value->get_named_captures())
{
available_captures.insert(named_cap.get_name().to_string());
}
}
if (!found_in_pattern) {
auto notes
= attr_line_t("the following captures are available:\n ")
.join(available_captures,
VC_ROLE.value(role_t::VCR_SYMBOL),
", ");
errors.emplace_back(
lnav::console::user_message::warning(
attr_line_t("invalid value ")
.append_quoted(lnav::roles::symbol(
fmt::format(FMT_STRING("/{}/value/{}"),
this->elf_name,
vd->vd_meta.lvm_name.get()))))
.with_reason(
attr_line_t("no patterns have a capture named ")
.append_quoted(vd->vd_meta.lvm_name.get()))
.with_note(notes)
.with_snippets(this->get_snippets())
.with_help("values are populated from captures in "
"patterns, so at least one pattern must "
"have a capture with this value name"));
}
}
for (act_iter = vd->vd_action_list.begin();
act_iter != vd->vd_action_list.end();
++act_iter)
{
if (this->lf_action_defs.find(*act_iter)
== this->lf_action_defs.end())
{
#if 0
errors.push_back("error:" + this->elf_name.to_string() + ":"
+ vd->vd_meta.lvm_name.get()
+ ": cannot find action -- " + (*act_iter));
#endif
}
}
vd->set_rewrite_src_name();
}
for (const auto& td_pair : this->lf_tag_defs) {
const auto& td = td_pair.second;
if (td->ftd_pattern.pp_value == nullptr
|| td->ftd_pattern.pp_value->get_pattern().empty())
{
errors.emplace_back(
lnav::console::user_message::error(
attr_line_t("invalid tag definition ")
.append_quoted(lnav::roles::symbol(
fmt::format(FMT_STRING("/{}/tags/{}"),
this->elf_name,
td_pair.first))))
.with_reason(
"tag definitions must have a non-empty pattern")
.with_snippets(this->get_snippets()));
}
}
for (const auto& opid_desc_pair : *this->lf_opid_description_def) {
for (const auto& opid_desc : *opid_desc_pair.second.od_descriptors) {
auto iter = this->elf_value_defs.find(opid_desc.od_field.pp_value);
if (iter == this->elf_value_defs.end()) {
errors.emplace_back(
lnav::console::user_message::error(
attr_line_t("invalid opid description field ")
.append_quoted(lnav::roles::symbol(
opid_desc.od_field.pp_path.to_string())))
.with_reason(
attr_line_t("unknown value name ")
.append_quoted(opid_desc.od_field.pp_value))
.with_snippets(this->get_snippets()));
} else {
this->lf_desc_fields.insert(iter->first);
}
}
}
for (const auto& subid_desc_pair : *this->lf_subid_description_def) {
for (const auto& subid_desc : *subid_desc_pair.second.od_descriptors) {
auto iter = this->elf_value_defs.find(subid_desc.od_field.pp_value);
if (iter == this->elf_value_defs.end()) {
errors.emplace_back(
lnav::console::user_message::error(
attr_line_t("invalid subid description field ")
.append_quoted(lnav::roles::symbol(
subid_desc.od_field.pp_path.to_string())))
.with_reason(
attr_line_t("unknown value name ")
.append_quoted(subid_desc.od_field.pp_value))
.with_snippets(this->get_snippets()));
} else {
this->lf_desc_fields.insert(iter->first);
}
}
}
if (this->elf_type == elf_type_t::ELF_TYPE_TEXT
&& this->elf_samples.empty())
{
errors.emplace_back(
lnav::console::user_message::error(
attr_line_t()
.append_quoted(
lnav::roles::symbol(this->elf_name.to_string()))
.append(" is not a valid log format"))
.with_reason("log message samples must be included in a format "
"definition")
.with_snippets(this->get_snippets()));
}
if (!this->lf_subsecond_field.empty()
&& !this->lf_subsecond_unit.has_value())
{
errors.emplace_back(
lnav::console::user_message::error(
attr_line_t()
.append_quoted(
lnav::roles::symbol(this->elf_name.to_string()))
.append(" is not a valid log format"))
.with_reason(attr_line_t()
.append_quoted("subsecond-unit"_symbol)
.append(" must be set when ")
.append_quoted("subsecond-field"_symbol)
.append(" is used"))
.with_snippets(this->get_snippets()));
}
for (size_t sample_index = 0; sample_index < this->elf_samples.size();
sample_index += 1)
{
auto& elf_sample = this->elf_samples[sample_index];
auto sample_lines
= string_fragment(elf_sample.s_line.pp_value).split_lines();
bool found = false;
for (auto pat_iter = this->elf_pattern_order.begin();
pat_iter != this->elf_pattern_order.end();
++pat_iter)
{
auto& pat = *(*pat_iter);
if (!pat.p_pcre.pp_value) {
continue;
}
auto md = pat.p_pcre.pp_value->create_match_data();
auto match_res = pat.p_pcre.pp_value->capture_from(sample_lines[0])
.into(md)
.matches()
.ignore_error();
if (!match_res) {
continue;
}
found = true;
if (pat.p_module_format) {
continue;
}
elf_sample.s_matched_regexes.insert(pat.p_name.to_string());
pat.p_matched_samples.insert(sample_index);
if (pat.p_pcre.pp_value->name_index(this->lf_timestamp_field.get())
< 0)
{
attr_line_t notes;
bool first_note = true;
if (pat.p_pcre.pp_value->get_capture_count() > 0) {
notes.append("the following captures are available:\n ");
}
for (auto named_cap : pat.p_pcre.pp_value->get_named_captures())
{
if (!first_note) {
notes.append(", ");
}
notes.append(
lnav::roles::symbol(named_cap.get_name().to_string()));
first_note = false;
}
errors.emplace_back(
lnav::console::user_message::error(
attr_line_t("invalid value for property ")
.append_quoted(lnav::roles::symbol(
fmt::format(FMT_STRING("/{}/timestamp-field"),
this->elf_name))))
.with_reason(
attr_line_t()
.append_quoted(this->lf_timestamp_field)
.append(" was not found in the pattern at ")
.append(lnav::roles::symbol(pat.p_config_path)))
.with_note(notes)
.with_snippets(this->get_snippets()));
continue;
}
const auto ts_cap = md[pat.p_timestamp_field_index];
const auto level_cap = md[pat.p_level_field_index];
const char* const* custom_formats = this->get_timestamp_formats();
date_time_scanner dts;
struct timeval tv;
struct exttm tm;
if (ts_cap && ts_cap->sf_begin == 0) {
pat.p_timestamp_end = ts_cap->sf_end;
}
const char* dts_scan_res = nullptr;
if (ts_cap) {
dts_scan_res = dts.scan(
ts_cap->data(), ts_cap->length(), custom_formats, &tm, tv);
}
if (dts_scan_res != nullptr) {
if (dts_scan_res != ts_cap->data() + ts_cap->length()) {
auto match_len = dts_scan_res - ts_cap->data();
auto notes = attr_line_t("the used timestamp format: ");
if (custom_formats == nullptr) {
notes.append(PTIMEC_FORMATS[dts.dts_fmt_lock].pf_fmt);
} else {
notes.append(custom_formats[dts.dts_fmt_lock]);
}
notes.append("\n ")
.append(ts_cap.value())
.append("\n")
.append(2 + match_len, ' ')
.append("^ matched up to here"_snippet_border);
auto um
= lnav::console::user_message::warning(
attr_line_t("timestamp was not fully matched: ")
.append_quoted(ts_cap.value()))
.with_snippet(elf_sample.s_line.to_snippet())
.with_note(notes);
errors.emplace_back(um);
}
} else {
attr_line_t notes;
if (custom_formats == nullptr) {
notes.append("the following built-in formats were tried:");
for (int lpc = 0; PTIMEC_FORMATS[lpc].pf_fmt != nullptr;
lpc++)
{
off_t off = 0;
PTIMEC_FORMATS[lpc].pf_func(
&tm, ts_cap->data(), off, ts_cap->length());
notes.append("\n ")
.append(ts_cap.value())
.append("\n")
.append(2 + off, ' ')
.append("^ "_snippet_border)
.append_quoted(
lnav::roles::symbol(PTIMEC_FORMATS[lpc].pf_fmt))
.append(" matched up to here"_snippet_border);
}
} else {
notes.append("the following custom formats were tried:");
for (int lpc = 0; custom_formats[lpc] != nullptr; lpc++) {
off_t off = 0;
ptime_fmt(custom_formats[lpc],
&tm,
ts_cap->data(),
off,
ts_cap->length());
notes.append("\n ")
.append(ts_cap.value())
.append("\n")
.append(2 + off, ' ')
.append("^ "_snippet_border)
.append_quoted(
lnav::roles::symbol(custom_formats[lpc]))
.append(" matched up to here"_snippet_border);
}
}
errors.emplace_back(
lnav::console::user_message::error(
attr_line_t("invalid sample log message: ")
.append(lnav::to_json(elf_sample.s_line.pp_value)))
.with_reason(attr_line_t("unrecognized timestamp -- ")
.append(ts_cap.value()))
.with_snippet(elf_sample.s_line.to_snippet())
.with_note(notes)
.with_help(attr_line_t("If the timestamp format is not "
"supported by default, you can "
"add a custom format with the ")
.append_quoted("timestamp-format"_symbol)
.append(" property")));
}
auto level = this->convert_level(
level_cap.value_or(string_fragment::invalid()), nullptr);
if (elf_sample.s_level != LEVEL_UNKNOWN
&& elf_sample.s_level != level)
{
attr_line_t note_al;
note_al.append("matched regex = ")
.append(lnav::roles::symbol(pat.p_name.to_string()))
.append("\n")
.append("captured level = ")
.append_quoted(level_cap->to_string());
if (level_cap && !this->elf_level_patterns.empty()) {
static thread_local auto md
= lnav::pcre2pp::match_data::unitialized();
note_al.append("\nlevel regular expression match results:");
for (const auto& level_pattern : this->elf_level_patterns) {
attr_line_t regex_al = level_pattern.second.lp_pcre
.pp_value->get_pattern();
lnav::snippets::regex_highlighter(
regex_al,
-1,
line_range{0, (int) regex_al.length()});
note_al.append("\n ")
.append(
lnav::roles::symbol(level_pattern.second.lp_pcre
.pp_path.to_string()))
.append(" = ")
.append(regex_al)
.append("\n ");
auto match_res = level_pattern.second.lp_pcre.pp_value
->capture_from(level_cap.value())
.into(md)
.matches(PCRE2_NO_UTF_CHECK)
.ignore_error();
if (!match_res) {
note_al.append(lnav::roles::warning("no match"));
continue;
}
note_al.append(level_cap.value())
.append("\n ")
.append(md.leading().length(), ' ')
.append("^"_snippet_border);
if (match_res->f_all.length() > 2) {
note_al.append(
lnav::roles::snippet_border(std::string(
match_res->f_all.length() - 2, '-')));
}
if (match_res->f_all.length() > 1) {
note_al.append("^"_snippet_border);
}
}
}
auto um
= lnav::console::user_message::error(
attr_line_t("invalid sample log message: ")
.append(
lnav::to_json(elf_sample.s_line.pp_value)))
.with_reason(
attr_line_t()
.append_quoted(
lnav::roles::symbol(level_names[level]))
.append(" does not match the expected "
"level of ")
.append_quoted(lnav::roles::symbol(
level_names[elf_sample.s_level])))
.with_snippet(elf_sample.s_line.to_snippet())
.with_note(note_al);
if (!this->elf_level_patterns.empty()) {
um.with_help(
attr_line_t("Level regexes are not anchored to the "
"start/end of the string. Prepend ")
.append_quoted("^"_symbol)
.append(" to the expression to match from the "
"start of the string and append ")
.append_quoted("$"_symbol)
.append(" to match up to the end of the string."));
}
errors.emplace_back(um);
}
{
auto full_match_res
= pat.p_pcre.pp_value
->capture_from(elf_sample.s_line.pp_value)
.into(md)
.matches()
.ignore_error();
if (!full_match_res) {
attr_line_t regex_al = pat.p_pcre.pp_value->get_pattern();
lnav::snippets::regex_highlighter(
regex_al, -1, line_range{0, (int) regex_al.length()});
errors.emplace_back(
lnav::console::user_message::error(
attr_line_t("invalid pattern: ")
.append_quoted(lnav::roles::symbol(
pat.p_name.to_string())))
.with_reason("pattern does not match entire "
"multiline sample message")
.with_snippet(elf_sample.s_line.to_snippet())
.with_note(attr_line_t()
.append(lnav::roles::symbol(
pat.p_name.to_string()))
.append(" = ")
.append(regex_al))
.with_help(
attr_line_t("use ").append_quoted(".*").append(
" to match new-lines")));
} else if (static_cast<size_t>(full_match_res->f_all.length())
!= elf_sample.s_line.pp_value.length())
{
attr_line_t regex_al = pat.p_pcre.pp_value->get_pattern();
lnav::snippets::regex_highlighter(
regex_al, -1, line_range{0, (int) regex_al.length()});
auto match_length
= static_cast<size_t>(full_match_res->f_all.length());
attr_line_t sample_al = elf_sample.s_line.pp_value;
sample_al.append("\n")
.append(match_length, ' ')
.append("^ matched up to here"_error)
.with_attr_for_all(
VC_ROLE.value(role_t::VCR_QUOTED_CODE));
auto sample_snippet = lnav::console::snippet::from(
elf_sample.s_line.pp_location, sample_al);
errors.emplace_back(
lnav::console::user_message::error(
attr_line_t("invalid pattern: ")
.append_quoted(lnav::roles::symbol(
pat.p_name.to_string())))
.with_reason("pattern does not match entire "
"message")
.with_snippet(sample_snippet)
.with_note(attr_line_t()
.append(lnav::roles::symbol(
pat.p_name.to_string()))
.append(" = ")
.append(regex_al))
.with_help("update the regular expression to fully "
"capture the sample message"));
}
}
}
if (!found && !this->elf_pattern_order.empty()) {
std::vector<std::pair<ssize_t, intern_string_t>> partial_indexes;
attr_line_t notes;
size_t max_name_width = 0;
for (const auto& pat_iter : this->elf_pattern_order) {
auto& pat = *pat_iter;
if (!pat.p_pcre.pp_value) {
continue;
}
partial_indexes.emplace_back(
pat.p_pcre.pp_value->match_partial(sample_lines[0]),
pat.p_name);
max_name_width = std::max(max_name_width, pat.p_name.size());
}
for (const auto& line_frag : sample_lines) {
auto src_line = attr_line_t(line_frag.to_string());
if (!line_frag.endswith("\n")) {
src_line.append("\n");
}
src_line.with_attr_for_all(
VC_ROLE.value(role_t::VCR_QUOTED_CODE));
notes.append(" ").append(src_line);
for (auto& part_pair : partial_indexes) {
if (part_pair.first >= 0
&& part_pair.first < line_frag.length())
{
notes.append(" ")
.append(part_pair.first, ' ')
.append("^ "_snippet_border)
.append(lnav::roles::symbol(
part_pair.second.to_string()))
.append(" matched up to here"_snippet_border)
.append("\n");
}
part_pair.first -= line_frag.length();
}
}
notes.add_header(
"the following shows how each pattern matched this sample:\n");
attr_line_t regex_note;
for (const auto& pat_iter : this->elf_pattern_order) {
if (!pat_iter->p_pcre.pp_value) {
regex_note
.append(
lnav::roles::symbol(fmt::format(FMT_STRING("{:{}}"),
pat_iter->p_name,
max_name_width)))
.append(" is invalid");
continue;
}
attr_line_t regex_al = pat_iter->p_pcre.pp_value->get_pattern();
lnav::snippets::regex_highlighter(
regex_al, -1, line_range{0, (int) regex_al.length()});
regex_note
.append(lnav::roles::symbol(fmt::format(
FMT_STRING("{:{}}"), pat_iter->p_name, max_name_width)))
.append(" = ")
.append_quoted(regex_al)
.append("\n");
}
errors.emplace_back(
lnav::console::user_message::error(
attr_line_t("invalid sample log message: ")
.append(lnav::to_json(elf_sample.s_line.pp_value)))
.with_reason("sample does not match any patterns")
.with_snippet(elf_sample.s_line.to_snippet())
.with_note(notes.rtrim())
.with_note(regex_note));
}
}
if (!this->elf_samples.empty()) {
for (const auto& elf_sample : this->elf_samples) {
if (elf_sample.s_matched_regexes.size() <= 1) {
continue;
}
errors.emplace_back(
lnav::console::user_message::warning(
attr_line_t("invalid log format: ")
.append_quoted(
lnav::roles::symbol(this->elf_name.to_string())))
.with_reason(
attr_line_t(
"sample is matched by more than one regex: ")
.join(elf_sample.s_matched_regexes,
VC_ROLE.value(role_t::VCR_SYMBOL),
", "))
.with_snippet(lnav::console::snippet::from(
elf_sample.s_line.pp_location,
attr_line_t().append(lnav::roles::quoted_code(
elf_sample.s_line.pp_value))))
.with_help("log format regexes must match a single type "
"of log message"));
}
for (const auto& pat : this->elf_pattern_order) {
if (pat->p_module_format) {
continue;
}
if (pat->p_matched_samples.empty()) {
errors.emplace_back(
lnav::console::user_message::warning(
attr_line_t("invalid pattern: ")
.append_quoted(
lnav::roles::symbol(pat->p_config_path)))
.with_reason("pattern does not match any samples")
.with_snippet(lnav::console::snippet::from(
pat->p_pcre.pp_location, ""))
.with_help(
"every pattern should have at least one sample "
"that it matches"));
}
}
}
size_t value_def_index = 0;
for (auto& elf_value_def : this->elf_value_def_order) {
elf_value_def->vd_meta.lvm_values_index
= nonstd::make_optional(value_def_index++);
if (elf_value_def->vd_foreign_key
|| elf_value_def->vd_meta.lvm_identifier)
{
continue;
}
switch (elf_value_def->vd_meta.lvm_kind) {
case value_kind_t::VALUE_INTEGER:
case value_kind_t::VALUE_FLOAT:
this->elf_numeric_value_defs.push_back(elf_value_def);
break;
default:
break;
}
}
int format_index = 0;
for (auto iter = this->jlf_line_format.begin();
iter != this->jlf_line_format.end();
++iter, format_index++)
{
static const intern_string_t ts
= intern_string::lookup("__timestamp__");
static const intern_string_t level_field
= intern_string::lookup("__level__");
json_format_element& jfe = *iter;
if (startswith(jfe.jfe_value.pp_value.get(), "/")) {
jfe.jfe_value.pp_value
= intern_string::lookup(jfe.jfe_value.pp_value.get() + 1);
}
if (!jfe.jfe_ts_format.empty()) {
if (!jfe.jfe_value.pp_value.empty() && jfe.jfe_value.pp_value != ts)
{
log_warning(
"%s:line-format[%d]:ignoring field '%s' since "
"timestamp-format was used",
this->elf_name.get(),
format_index,
jfe.jfe_value.pp_value.get());
}
jfe.jfe_value.pp_value = ts;
}
switch (jfe.jfe_type) {
case json_log_field::VARIABLE: {
auto vd_iter
= this->elf_value_defs.find(jfe.jfe_value.pp_value);
if (jfe.jfe_value.pp_value == ts) {
this->elf_value_defs[this->lf_timestamp_field]
->vd_meta.lvm_hidden
= true;
} else if (jfe.jfe_value.pp_value == level_field) {
this->elf_value_defs[this->elf_level_field]
->vd_meta.lvm_hidden
= true;
} else if (vd_iter == this->elf_value_defs.end()) {
errors.emplace_back(
lnav::console::user_message::error(
attr_line_t("invalid line format element ")
.append_quoted(lnav::roles::symbol(fmt::format(
FMT_STRING("/{}/line-format/{}/field"),
this->elf_name,
format_index))))
.with_reason(
attr_line_t()
.append_quoted(jfe.jfe_value.pp_value)
.append(" is not a defined value"))
.with_snippet(jfe.jfe_value.to_snippet()));
} else {
switch (vd_iter->second->vd_meta.lvm_kind) {
case value_kind_t::VALUE_INTEGER:
case value_kind_t::VALUE_FLOAT:
if (jfe.jfe_align
== json_format_element::align_t::NONE)
{
jfe.jfe_align
= json_format_element::align_t::RIGHT;
}
break;
default:
break;
}
}
break;
}
case json_log_field::CONSTANT:
this->jlf_line_format_init_count
+= std::count(jfe.jfe_default_value.begin(),
jfe.jfe_default_value.end(),
'\n');
break;
default:
break;
}
}
for (auto& hd_pair : this->elf_highlighter_patterns) {
external_log_format::highlighter_def& hd = hd_pair.second;
auto fg = styling::color_unit::make_empty();
auto bg = styling::color_unit::make_empty();
text_attrs attrs;
if (!hd.hd_color.pp_value.empty()) {
fg = styling::color_unit::from_str(hd.hd_color.pp_value)
.unwrapOrElse([&](const auto& msg) {
errors.emplace_back(
lnav::console::user_message::error(
attr_line_t()
.append_quoted(hd.hd_color.pp_value)
.append(" is not a valid color value for "
"property ")
.append_quoted(lnav::roles::symbol(
hd.hd_color.pp_path.to_string())))
.with_reason(msg)
.with_snippet(hd.hd_color.to_snippet()));
return styling::color_unit::make_empty();
});
}
if (!hd.hd_background_color.pp_value.empty()) {
bg = styling::color_unit::from_str(hd.hd_background_color.pp_value)
.unwrapOrElse([&](const auto& msg) {
errors.emplace_back(
lnav::console::user_message::error(
attr_line_t()
.append_quoted(
hd.hd_background_color.pp_value)
.append(" is not a valid color value for "
"property ")
.append_quoted(lnav::roles::symbol(
hd.hd_background_color.pp_path
.to_string())))
.with_reason(msg)
.with_snippet(
hd.hd_background_color.to_snippet()));
return styling::color_unit::make_empty();
});
}
if (hd.hd_underline) {
attrs.ta_attrs |= A_UNDERLINE;
}
if (hd.hd_blink) {
attrs.ta_attrs |= A_BLINK;
}
if (hd.hd_pattern.pp_value != nullptr) {
this->lf_highlighters.emplace_back(hd.hd_pattern.pp_value);
this->lf_highlighters.back()
.with_name(hd_pair.first.to_string())
.with_format_name(this->elf_name)
.with_color(fg, bg)
.with_attrs(attrs);
}
}
this->lf_value_stats.resize(this->elf_value_defs.size());
}
void
external_log_format::register_vtabs(
log_vtab_manager* vtab_manager,
std::vector<lnav::console::user_message>& errors)
{
for (auto& elf_search_table : this->elf_search_tables) {
if (elf_search_table.second.std_pattern.pp_value == nullptr) {
continue;
}
auto lst = std::make_shared<log_search_table>(
elf_search_table.second.std_pattern.pp_value,
elf_search_table.first);
lst->lst_format = this;
lst->lst_log_path_glob = elf_search_table.second.std_glob;
if (elf_search_table.second.std_level != LEVEL_UNKNOWN) {
lst->lst_log_level = elf_search_table.second.std_level;
}
auto errmsg = vtab_manager->register_vtab(lst);
if (!errmsg.empty()) {
#if 0
errors.push_back("error:" + this->elf_name.to_string() + ":"
+ search_iter->first.to_string()
+ ":unable to register table -- " + errmsg);
#endif
}
}
}
bool
external_log_format::match_samples(const std::vector<sample>& samples) const
{
for (const auto& sample_iter : samples) {
for (const auto& pat_iter : this->elf_pattern_order) {
auto& pat = *pat_iter;
if (!pat.p_pcre.pp_value) {
continue;
}
if (pat.p_pcre.pp_value->find_in(sample_iter.s_line.pp_value)
.ignore_error())
{
return true;
}
}
}
return false;
}
class external_log_table : public log_format_vtab_impl {
public:
explicit external_log_table(const external_log_format& elf)
: log_format_vtab_impl(elf), elt_format(elf)
{
}
void get_columns(std::vector<vtab_column>& cols) const override
{
const auto& elf = this->elt_format;
cols.resize(elf.elf_column_count);
for (const auto& vd : elf.elf_value_def_order) {
auto type_pair = log_vtab_impl::logline_value_to_sqlite_type(
vd->vd_meta.lvm_kind);
if (!vd->vd_meta.lvm_column.is<logline_value_meta::table_column>())
{
continue;
}
auto col
= vd->vd_meta.lvm_column.get<logline_value_meta::table_column>()
.value;
require(0 <= col && col < elf.elf_column_count);
cols[col].vc_name = vd->vd_meta.lvm_name.get();
cols[col].vc_type = type_pair.first;
cols[col].vc_subtype = type_pair.second;
cols[col].vc_collator = vd->vd_collate;
cols[col].vc_comment = vd->vd_description;
}
}
void get_foreign_keys(std::vector<std::string>& keys_inout) const override
{
log_vtab_impl::get_foreign_keys(keys_inout);
for (const auto& elf_value_def : this->elt_format.elf_value_defs) {
if (elf_value_def.second->vd_foreign_key) {
keys_inout.emplace_back(elf_value_def.first.to_string());
}
}
}
bool next(log_cursor& lc, logfile_sub_source& lss) override
{
if (lc.is_eof()) {
return true;
}
content_line_t cl(lss.at(lc.lc_curr_line));
auto* lf = lss.find_file_ptr(cl);
auto lf_iter = lf->begin() + cl;
uint8_t mod_id = lf_iter->get_module_id();
if (lf_iter->is_continued()) {
return false;
}
this->elt_module_format.mf_mod_format = nullptr;
if (lf->get_format_name() == this->lfvi_format.get_name()) {
return true;
} else if (mod_id && mod_id == this->lfvi_format.lf_mod_index) {
auto format = lf->get_format();
return lf->read_line(lf_iter)
.map([this, format, cl](auto line) {
logline_value_vector values;
struct line_range mod_name_range;
intern_string_t mod_name;
this->vi_attrs.clear();
values.lvv_sbr = line;
format->annotate(cl, this->vi_attrs, values, false);
this->elt_container_body
= find_string_attr_range(this->vi_attrs, &SA_BODY);
if (!this->elt_container_body.is_valid()) {
return false;
}
this->elt_container_body.ltrim(line.get_data());
mod_name_range = find_string_attr_range(this->vi_attrs,
&logline::L_MODULE);
if (!mod_name_range.is_valid()) {
return false;
}
mod_name = intern_string::lookup(
&line.get_data()[mod_name_range.lr_start],
mod_name_range.length());
this->vi_attrs.clear();
this->elt_module_format
= external_log_format::MODULE_FORMATS[mod_name];
if (!this->elt_module_format.mf_mod_format) {
return false;
}
return this->elt_module_format.mf_mod_format->get_name()
== this->lfvi_format.get_name();
})
.unwrapOr(false);
}
return false;
}
void extract(logfile* lf,
uint64_t line_number,
logline_value_vector& values) override
{
auto& line = values.lvv_sbr;
auto format = lf->get_format();
if (this->elt_module_format.mf_mod_format != nullptr) {
shared_buffer_ref body_ref;
body_ref.subset(line,
this->elt_container_body.lr_start,
this->elt_container_body.length());
this->vi_attrs.clear();
auto narrow_res
= values.lvv_sbr.narrow(this->elt_container_body.lr_start,
this->elt_container_body.length());
values.lvv_values.clear();
this->elt_module_format.mf_mod_format->annotate(
line_number, this->vi_attrs, values, false);
values.lvv_sbr.widen(narrow_res);
} else {
this->vi_attrs.clear();
format->annotate(line_number, this->vi_attrs, values, false);
}
}
const external_log_format& elt_format;
module_format elt_module_format;
struct line_range elt_container_body;
};
std::shared_ptr<log_vtab_impl>
external_log_format::get_vtab_impl() const
{
return std::make_shared<external_log_table>(*this);
}
std::shared_ptr<log_format>
external_log_format::specialized(int fmt_lock)
{
auto retval = std::make_shared<external_log_format>(*this);
retval->lf_specialized = true;
this->lf_pattern_locks.clear();
if (fmt_lock != -1) {
retval->lf_pattern_locks.emplace_back(0, fmt_lock);
}
if (this->elf_type == elf_type_t::ELF_TYPE_JSON) {
this->jlf_parse_context
= std::make_shared<yajlpp_parse_context>(this->elf_name);
this->jlf_yajl_handle.reset(
yajl_alloc(&this->jlf_parse_context->ypc_callbacks,
nullptr,
this->jlf_parse_context.get()),
yajl_handle_deleter());
yajl_config(this->jlf_yajl_handle.get(), yajl_dont_validate_strings, 1);
this->jlf_cached_line.reserve(16 * 1024);
}
this->lf_value_stats.clear();
this->lf_value_stats.resize(this->elf_value_defs.size());
this->elf_specialized_value_defs_state = *this->elf_value_defs_state;
return retval;
}
bool
external_log_format::match_name(const std::string& filename)
{
if (this->elf_filename_pcre.pp_value == nullptr) {
return true;
}
return this->elf_filename_pcre.pp_value->find_in(filename)
.ignore_error()
.has_value();
}
auto
external_log_format::value_line_count(const intern_string_t ist,
bool top_level,
nonstd::optional<double> val,
const unsigned char* str,
ssize_t len) -> value_line_count_result
{
const auto iter = this->elf_value_defs.find(ist);
value_line_count_result retval;
if (str != nullptr) {
auto frag = string_fragment::from_bytes(str, len);
while (frag.endswith("\n")) {
frag.pop_back();
}
while (!frag.empty()) {
auto utf_res = is_utf8(frag, '\n');
if (!utf_res.is_valid()) {
retval.vlcr_valid_utf = false;
}
retval.vlcr_has_ansi |= utf_res.usr_has_ansi;
if (!utf_res.usr_remaining) {
break;
}
frag = utf_res.usr_remaining.value();
retval.vlcr_count += 1;
}
}
if (iter == this->elf_value_defs.end()) {
if (this->jlf_hide_extra || !top_level) {
retval.vlcr_count = 0;
}
return retval;
}
if (iter->second->vd_meta.lvm_values_index) {
auto& lvs = this->lf_value_stats[iter->second->vd_meta.lvm_values_index
.value()];
if (len > lvs.lvs_width) {
lvs.lvs_width = len;
}
if (val) {
lvs.add_value(val.value());
}
}
if (std::find_if(this->jlf_line_format.begin(),
this->jlf_line_format.end(),
json_field_cmp(json_log_field::VARIABLE, ist))
!= this->jlf_line_format.end())
{
retval.vlcr_line_format_count += 1;
retval.vlcr_count -= 1;
}
if (iter->second->vd_meta.is_hidden()) {
retval.vlcr_count = 0;
}
return retval;
}
log_level_t
external_log_format::convert_level(string_fragment sf,
scan_batch_context* sbc) const
{
log_level_t retval = LEVEL_INFO;
if (sf.is_valid()) {
if (sbc != nullptr && sbc->sbc_cached_level_count > 0) {
auto cached_level_iter
= std::find(std::begin(sbc->sbc_cached_level_strings),
std::begin(sbc->sbc_cached_level_strings)
+ sbc->sbc_cached_level_count,
sf);
if (cached_level_iter
!= std::begin(sbc->sbc_cached_level_strings)
+ sbc->sbc_cached_level_count)
{
auto cache_index
= std::distance(std::begin(sbc->sbc_cached_level_strings),
cached_level_iter);
if (cache_index != 0) {
std::swap(sbc->sbc_cached_level_strings[cache_index],
sbc->sbc_cached_level_strings[0]);
std::swap(sbc->sbc_cached_level_values[cache_index],
sbc->sbc_cached_level_values[0]);
}
return sbc->sbc_cached_level_values[0];
}
}
if (this->elf_level_patterns.empty()) {
retval = string2level(sf.data(), sf.length());
} else {
for (const auto& elf_level_pattern : this->elf_level_patterns) {
if (elf_level_pattern.second.lp_pcre.pp_value
->find_in(sf, PCRE2_NO_UTF_CHECK)
.ignore_error()
.has_value())
{
retval = elf_level_pattern.first;
break;
}
}
}
if (sbc != nullptr && sf.length() < 10) {
size_t cache_index;
if (sbc->sbc_cached_level_count == 4) {
cache_index = sbc->sbc_cached_level_count - 1;
} else {
cache_index = sbc->sbc_cached_level_count;
sbc->sbc_cached_level_count += 1;
}
sbc->sbc_cached_level_strings[cache_index] = sf.to_string();
sbc->sbc_cached_level_values[cache_index] = retval;
}
}
return retval;
}
logline_value_meta
external_log_format::get_value_meta(intern_string_t field_name,
value_kind_t kind)
{
auto iter = this->elf_value_defs.find(field_name);
if (iter == this->elf_value_defs.end()) {
auto retval = logline_value_meta(
field_name, kind, logline_value_meta::external_column{}, this);
retval.lvm_hidden = this->jlf_hide_extra;
return retval;
}
auto lvm = iter->second->vd_meta;
lvm.lvm_kind = kind;
return lvm;
}
void
external_log_format::json_append(
const external_log_format::json_format_element& jfe,
const value_def* vd,
const char* value,
ssize_t len)
{
if (len == -1) {
len = strlen(value);
}
if (jfe.jfe_align == json_format_element::align_t::RIGHT) {
if (len < jfe.jfe_min_width) {
this->json_append_to_cache(jfe.jfe_min_width - len);
} else if (jfe.jfe_auto_width && vd != nullptr
&& len < this->lf_value_stats[vd->vd_meta.lvm_values_index
.value()]
.lvs_width)
{
this->json_append_to_cache(
this->lf_value_stats[vd->vd_meta.lvm_values_index.value()]
.lvs_width
- len);
}
}
this->json_append_to_cache(value, len);
if (jfe.jfe_align == json_format_element::align_t::LEFT
|| jfe.jfe_align == json_format_element::align_t::NONE)
{
if (len < jfe.jfe_min_width) {
this->json_append_to_cache(jfe.jfe_min_width - len);
} else if (jfe.jfe_auto_width && vd != nullptr
&& len < this->lf_value_stats[vd->vd_meta.lvm_values_index
.value()]
.lvs_width)
{
this->json_append_to_cache(
this->lf_value_stats[vd->vd_meta.lvm_values_index.value()]
.lvs_width
- len);
}
}
}
intern_string_t
external_log_format::get_pattern_name(uint64_t line_number) const
{
if (this->elf_type != elf_type_t::ELF_TYPE_TEXT) {
static auto structured = intern_string::lookup("structured");
return structured;
}
int pat_index = this->pattern_index_for_line(line_number);
return this->elf_pattern_order[pat_index]->p_name;
}
int
log_format::pattern_index_for_line(uint64_t line_number) const
{
if (this->lf_pattern_locks.empty()) {
return -1;
}
auto iter = lower_bound(this->lf_pattern_locks.cbegin(),
this->lf_pattern_locks.cend(),
line_number,
[](const pattern_for_lines& pfl, uint32_t line) {
return pfl.pfl_line < line;
});
if (iter == this->lf_pattern_locks.end() || iter->pfl_line != line_number) {
--iter;
}
return iter->pfl_pat_index;
}
std::string
log_format::get_pattern_path(uint64_t line_number) const
{
int pat_index = this->pattern_index_for_line(line_number);
return fmt::format(FMT_STRING("builtin ({})"), pat_index);
}
intern_string_t
log_format::get_pattern_name(uint64_t line_number) const
{
char pat_str[128];
int pat_index = this->pattern_index_for_line(line_number);
auto to_n_res = fmt::format_to_n(
pat_str, sizeof(pat_str) - 1, FMT_STRING("builtin ({})"), pat_index);
pat_str[to_n_res.size] = '\0';
return intern_string::lookup(pat_str);
}
std::shared_ptr<log_format>
log_format::find_root_format(const char* name)
{
auto& fmts = get_root_formats();
for (auto& lf : fmts) {
if (lf->get_name() == name) {
return lf;
}
}
return nullptr;
}
log_format::pattern_for_lines::pattern_for_lines(uint32_t pfl_line,
uint32_t pfl_pat_index)
: pfl_line(pfl_line), pfl_pat_index(pfl_pat_index)
{
}
void
logline_value_stats::merge(const logline_value_stats& other)
{
if (other.lvs_count == 0) {
return;
}
require(other.lvs_min_value <= other.lvs_max_value);
if (other.lvs_width > this->lvs_width) {
this->lvs_width = other.lvs_width;
}
if (other.lvs_min_value < this->lvs_min_value) {
this->lvs_min_value = other.lvs_min_value;
}
if (other.lvs_max_value > this->lvs_max_value) {
this->lvs_max_value = other.lvs_max_value;
}
this->lvs_count += other.lvs_count;
this->lvs_total += other.lvs_total;
ensure(this->lvs_count >= 0);
ensure(this->lvs_min_value <= this->lvs_max_value);
}
void
logline_value_stats::add_value(double value)
{
if (value < this->lvs_min_value) {
this->lvs_min_value = value;
}
if (value > this->lvs_max_value) {
this->lvs_max_value = value;
}
this->lvs_count += 1;
this->lvs_total += value;
}
std::vector<logline_value_meta>
external_log_format::get_value_metadata() const
{
std::vector<logline_value_meta> retval;
for (const auto& vd : this->elf_value_def_order) {
retval.emplace_back(vd->vd_meta);
}
return retval;
}
const logline_value_stats*
external_log_format::stats_for_value(const intern_string_t& name) const
{
auto iter = this->elf_value_defs.find(name);
if (iter != this->elf_value_defs.end()
&& iter->second->vd_meta.lvm_values_index)
{
return &this->lf_value_stats[iter->second->vd_meta.lvm_values_index
.value()];
}
return nullptr;
}
std::string
external_log_format::get_pattern_regex(uint64_t line_number) const
{
if (this->elf_type != elf_type_t::ELF_TYPE_TEXT) {
return "";
}
int pat_index = this->pattern_index_for_line(line_number);
return this->elf_pattern_order[pat_index]->p_pcre.pp_value->get_pattern();
}
bool
external_log_format::hide_field(const intern_string_t field_name, bool val)
{
auto vd_iter = this->elf_value_defs.find(field_name);
if (vd_iter == this->elf_value_defs.end()) {
return false;
}
vd_iter->second->vd_meta.lvm_user_hidden = val;
if (this->elf_type == elf_type_t::ELF_TYPE_JSON) {
bool found = false;
for (const auto& jfe : this->jlf_line_format) {
if (jfe.jfe_value.pp_value == field_name) {
found = true;
}
}
if (!found) {
log_info("format field %s.%s changed, rebuilding",
this->elf_name.get(),
field_name.get());
this->elf_value_defs_state->vds_generation += 1;
}
}
return true;
}
bool
external_log_format::format_changed()
{
if (this->elf_specialized_value_defs_state.vds_generation
!= this->elf_value_defs_state->vds_generation)
{
this->elf_specialized_value_defs_state = *this->elf_value_defs_state;
this->jlf_cached_offset = -1;
return true;
}
return false;
}
bool
format_tag_def::path_restriction::matches(const char* fn) const
{
return fnmatch(this->p_glob.c_str(), fn, 0) == 0;
}
/* XXX */
#include "log_format_impls.cc"