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/**
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* Copyright (c) 2015, Timothy Stack
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*
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* * Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* * Neither the name of Timothy Stack nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ''AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "config.h"
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#include <wordexp.h>
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#include <vector>
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#include "json_ptr.hh"
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#include "pcrecpp.h"
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#include "lnav.hh"
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#include "log_format_loader.hh"
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#include "shlex.hh"
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#include "command_executor.hh"
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#include "db_sub_source.hh"
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using namespace std;
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exec_context INIT_EXEC_CONTEXT;
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static const string MSG_FORMAT_STMT =
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"SELECT count(*) as total, min(log_line) as log_line, log_msg_format "
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"FROM all_logs GROUP BY log_msg_format ORDER BY total desc";
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static int sql_progress(const struct log_cursor &lc)
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{
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static sig_atomic_t sql_counter = 0;
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size_t total = lnav_data.ld_log_source.text_line_count();
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off_t off = lc.lc_curr_line;
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if (lnav_data.ld_window == NULL) {
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return 0;
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}
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if (!lnav_data.ld_looping) {
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return 1;
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}
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if (ui_periodic_timer::singleton().time_to_update(sql_counter)) {
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lnav_data.ld_bottom_source.update_loading(off, total);
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lnav_data.ld_top_source.update_time();
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lnav_data.ld_status[LNS_TOP].do_update();
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lnav_data.ld_status[LNS_BOTTOM].do_update();
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refresh();
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}
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return 0;
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}
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string execute_from_file(exec_context &ec, const string &path, int line_number, char mode, const string &cmdline);
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string execute_command(exec_context &ec, const string &cmdline)
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{
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vector<string> args;
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string msg;
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log_info("Executing: %s", cmdline.c_str());
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split_ws(cmdline, args);
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if (args.size() > 0) {
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readline_context::command_map_t::iterator iter;
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if ((iter = lnav_commands.find(args[0])) ==
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lnav_commands.end()) {
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msg = "error: unknown command - " + args[0];
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}
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else {
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msg = iter->second.c_func(ec, cmdline, args);
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}
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}
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return msg;
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}
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string execute_sql(exec_context &ec, const string &sql, string &alt_msg)
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{
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db_label_source &dls = lnav_data.ld_db_row_source;
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auto_mem<sqlite3_stmt> stmt(sqlite3_finalize);
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string stmt_str = trim(sql);
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string retval;
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int retcode;
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log_info("Executing SQL: %s", sql.c_str());
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lnav_data.ld_bottom_source.grep_error("");
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if (stmt_str == ".schema") {
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alt_msg = "";
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ensure_view(&lnav_data.ld_views[LNV_SCHEMA]);
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lnav_data.ld_mode = LNM_PAGING;
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return "";
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}
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else if (stmt_str == ".msgformats") {
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stmt_str = MSG_FORMAT_STMT;
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}
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dls.clear();
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sql_progress_guard progress_guard(sql_progress);
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retcode = sqlite3_prepare_v2(lnav_data.ld_db.in(),
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stmt_str.c_str(),
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-1,
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stmt.out(),
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NULL);
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if (retcode != SQLITE_OK) {
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const char *errmsg = sqlite3_errmsg(lnav_data.ld_db);
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retval = "error: " + string(errmsg);
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alt_msg = "";
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}
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else if (stmt == NULL) {
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retval = "";
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alt_msg = "";
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}
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else {
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bool done = false;
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int param_count;
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param_count = sqlite3_bind_parameter_count(stmt.in());
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for (int lpc = 0; lpc < param_count; lpc++) {
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map<string, string>::iterator ov_iter;
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const char *name;
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name = sqlite3_bind_parameter_name(stmt.in(), lpc + 1);
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ov_iter = ec.ec_override.find(name);
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if (ov_iter != ec.ec_override.end()) {
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sqlite3_bind_text(stmt.in(),
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lpc,
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ov_iter->second.c_str(),
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ov_iter->second.length(),
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SQLITE_TRANSIENT);
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}
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else if (name[0] == '$') {
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map<string, string> &vars = ec.ec_local_vars.top();
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map<string, string>::iterator local_var;
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const char *env_value;
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if ((local_var = vars.find(&name[1])) != vars.end()) {
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sqlite3_bind_text(stmt.in(), lpc + 1,
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local_var->second.c_str(), -1,
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SQLITE_TRANSIENT);
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}
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else if ((env_value = getenv(&name[1])) != NULL) {
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sqlite3_bind_text(stmt.in(), lpc + 1, env_value, -1, SQLITE_STATIC);
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}
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}
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else if (name[0] == ':' && ec.ec_line_values != NULL) {
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vector<logline_value> &lvalues = *ec.ec_line_values;
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vector<logline_value>::iterator iter;
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for (iter = lvalues.begin(); iter != lvalues.end(); ++iter) {
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if (strcmp(&name[1], iter->lv_name.get()) != 0) {
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continue;
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}
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switch (iter->lv_kind) {
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case logline_value::VALUE_BOOLEAN:
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sqlite3_bind_int64(stmt.in(), lpc + 1, iter->lv_value.i);
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break;
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case logline_value::VALUE_FLOAT:
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sqlite3_bind_double(stmt.in(), lpc + 1, iter->lv_value.d);
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break;
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case logline_value::VALUE_INTEGER:
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sqlite3_bind_int64(stmt.in(), lpc + 1, iter->lv_value.i);
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break;
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case logline_value::VALUE_NULL:
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sqlite3_bind_null(stmt.in(), lpc + 1);
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break;
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default:
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sqlite3_bind_text(stmt.in(),
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lpc + 1,
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iter->text_value(),
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iter->text_length(),
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SQLITE_TRANSIENT);
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break;
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}
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}
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}
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else {
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log_warning("Could not bind variable: %s", name);
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}
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}
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if (lnav_data.ld_rl_view != NULL) {
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lnav_data.ld_rl_view->set_value("Executing query: " + sql + " ...");
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lnav_data.ld_rl_view->do_update();
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}
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lnav_data.ld_log_source.text_clear_marks(&BM_QUERY);
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while (!done) {
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retcode = sqlite3_step(stmt.in());
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switch (retcode) {
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case SQLITE_OK:
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case SQLITE_DONE:
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done = true;
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break;
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case SQLITE_ROW:
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ec.ec_sql_callback(ec, stmt.in());
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break;
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default: {
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const char *errmsg;
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log_error("sqlite3_step error code: %d", retcode);
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errmsg = sqlite3_errmsg(lnav_data.ld_db);
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retval = "error: " + string(errmsg);
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done = true;
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}
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break;
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}
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}
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}
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if (retcode == SQLITE_DONE) {
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lnav_data.ld_views[LNV_LOG].reload_data();
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lnav_data.ld_views[LNV_DB].reload_data();
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lnav_data.ld_views[LNV_DB].set_left(0);
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if (!ec.ec_accumulator.empty()) {
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retval = ec.ec_accumulator;
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ec.ec_accumulator.clear();
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}
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else if (dls.dls_rows.size() > 0) {
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vis_bookmarks &bm = lnav_data.ld_views[LNV_LOG].get_bookmarks();
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if (lnav_data.ld_flags & LNF_HEADLESS) {
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if (ec.ec_local_vars.size() == 1) {
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ensure_view(&lnav_data.ld_views[LNV_DB]);
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}
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retval = "";
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alt_msg = "";
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}
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else if (dls.dls_headers.size() == 1 && !bm[&BM_QUERY].empty()) {
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retval = "";
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alt_msg = HELP_MSG_2(
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y, Y,
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"to move forward/backward through query results "
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"in the log view");
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}
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else if (dls.dls_rows.size() == 1) {
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string row;
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dls.text_value_for_line(lnav_data.ld_views[LNV_DB], 0, row, true);
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retval = row;
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}
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else {
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char row_count[32];
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if (ec.ec_local_vars.size() == 1) {
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ensure_view(&lnav_data.ld_views[LNV_DB]);
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}
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snprintf(row_count, sizeof(row_count),
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ANSI_BOLD("%'d") " row(s) matched",
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(int)dls.dls_rows.size());
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retval = row_count;
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alt_msg = HELP_MSG_2(
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y, Y,
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"to move forward/backward through query results "
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"in the log view");
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}
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}
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#ifdef HAVE_SQLITE3_STMT_READONLY
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else if (sqlite3_stmt_readonly(stmt.in())) {
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retval = "No rows matched";
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alt_msg = "";
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}
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#endif
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}
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if (!(lnav_data.ld_flags & LNF_HEADLESS)) {
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lnav_data.ld_bottom_source.update_loading(0, 0);
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lnav_data.ld_status[LNS_BOTTOM].do_update();
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redo_search(LNV_DB);
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}
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lnav_data.ld_views[LNV_LOG].reload_data();
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return retval;
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}
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static string execute_file_contents(exec_context &ec, const string &path, bool multiline)
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{
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string retval;
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FILE *file;
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if (path == "-" || path == "/dev/stdin") {
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if (isatty(STDIN_FILENO)) {
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return "error: stdin has already been consumed";
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}
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file = stdin;
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}
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else if ((file = fopen(path.c_str(), "r")) == NULL) {
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return "error: unable to open file";
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}
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int line_number = 0, starting_line_number = 0;
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char *line = NULL;
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size_t line_max_size;
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ssize_t line_size;
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string cmdline;
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char mode = '\0';
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pair<string, string> dir_and_base = split_path(path);
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ec.ec_path_stack.push(dir_and_base.first);
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while ((line_size = getline(&line, &line_max_size, file)) != -1) {
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line_number += 1;
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if (trim(line).empty()) {
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continue;
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}
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if (line[0] == '#') {
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continue;
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}
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switch (line[0]) {
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case ':':
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case '/':
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case ';':
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case '|':
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if (mode) {
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retval = execute_from_file(ec, path, starting_line_number, mode, trim(cmdline));
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}
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starting_line_number = line_number;
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mode = line[0];
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cmdline = string(&line[1]);
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break;
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default:
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if (multiline) {
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cmdline += line;
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}
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else {
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retval = execute_from_file(ec, path, line_number, ':', line);
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}
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break;
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}
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}
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if (mode) {
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retval = execute_from_file(ec, path, starting_line_number, mode, trim(cmdline));
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}
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if (file == stdin) {
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if (isatty(STDOUT_FILENO)) {
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|
|
log_perror(dup2(STDOUT_FILENO, STDIN_FILENO));
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
fclose(file);
|
|
|
|
}
|
|
|
|
ec.ec_path_stack.pop();
|
|
|
|
|
|
|
|
return retval;
|
|
|
|
}
|
|
|
|
|
|
|
|
string execute_file(exec_context &ec, const string &path_and_args, bool multiline)
|
|
|
|
{
|
|
|
|
map<string, vector<script_metadata> > scripts;
|
|
|
|
map<string, vector<script_metadata> >::iterator iter;
|
|
|
|
vector<string> split_args;
|
|
|
|
string msg, retval;
|
|
|
|
shlex lexer(path_and_args);
|
|
|
|
|
|
|
|
log_info("Executing file: %s", path_and_args.c_str());
|
|
|
|
|
|
|
|
if (!lexer.split(split_args, ec.ec_local_vars.top())) {
|
|
|
|
retval = "error: unable to parse path";
|
|
|
|
}
|
|
|
|
else if (split_args.empty()) {
|
|
|
|
retval = "error: no script specified";
|
|
|
|
}
|
|
|
|
else {
|
|
|
|
ec.ec_local_vars.push(map<string, string>());
|
|
|
|
|
|
|
|
string script_name = split_args[0];
|
|
|
|
map<string, string> &vars = ec.ec_local_vars.top();
|
|
|
|
char env_arg_name[32];
|
|
|
|
string result, open_error = "file not found";
|
|
|
|
|
|
|
|
add_ansi_vars(vars);
|
|
|
|
|
|
|
|
snprintf(env_arg_name, sizeof(env_arg_name), "%d", (int) split_args.size() - 1);
|
|
|
|
|
|
|
|
vars["#"] = env_arg_name;
|
|
|
|
for (unsigned int lpc = 0; lpc < split_args.size(); lpc++) {
|
|
|
|
snprintf(env_arg_name, sizeof(env_arg_name), "%d", lpc);
|
|
|
|
vars[env_arg_name] = split_args[lpc];
|
|
|
|
}
|
|
|
|
|
|
|
|
vector<script_metadata> paths_to_exec;
|
|
|
|
|
|
|
|
find_format_scripts(lnav_data.ld_config_paths, scripts);
|
|
|
|
if ((iter = scripts.find(script_name)) != scripts.end()) {
|
|
|
|
paths_to_exec = iter->second;
|
|
|
|
}
|
|
|
|
if (script_name == "-" || script_name == "/dev/stdin") {
|
|
|
|
paths_to_exec.push_back({script_name});
|
|
|
|
}
|
|
|
|
else if (access(script_name.c_str(), R_OK) == 0) {
|
|
|
|
struct script_metadata meta;
|
|
|
|
|
|
|
|
meta.sm_path = script_name;
|
|
|
|
extract_metadata_from_file(meta);
|
|
|
|
paths_to_exec.push_back(meta);
|
|
|
|
}
|
|
|
|
else if (errno != ENOENT) {
|
|
|
|
open_error = strerror(errno);
|
|
|
|
}
|
|
|
|
else {
|
|
|
|
string local_path = ec.ec_path_stack.top() + "/" + script_name;
|
|
|
|
|
|
|
|
if (access(local_path.c_str(), R_OK) == 0) {
|
|
|
|
struct script_metadata meta;
|
|
|
|
|
|
|
|
meta.sm_path = local_path;
|
|
|
|
extract_metadata_from_file(meta);
|
|
|
|
paths_to_exec.push_back(meta);
|
|
|
|
}
|
|
|
|
else if (errno != ENOENT) {
|
|
|
|
open_error = strerror(errno);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
if (!paths_to_exec.empty()) {
|
|
|
|
for (vector<script_metadata>::iterator path_iter = paths_to_exec.begin();
|
|
|
|
path_iter != paths_to_exec.end();
|
|
|
|
++path_iter) {
|
|
|
|
result = execute_file_contents(ec, path_iter->sm_path, multiline);
|
|
|
|
}
|
|
|
|
retval = result;
|
|
|
|
}
|
|
|
|
else {
|
|
|
|
retval = "error: unknown script -- " + script_name + " -- " + open_error;
|
|
|
|
}
|
|
|
|
ec.ec_local_vars.pop();
|
|
|
|
}
|
|
|
|
|
|
|
|
return retval;
|
|
|
|
}
|
|
|
|
|
|
|
|
string execute_from_file(exec_context &ec, const string &path, int line_number, char mode, const string &cmdline)
|
|
|
|
{
|
|
|
|
string retval, alt_msg;
|
|
|
|
|
|
|
|
switch (mode) {
|
|
|
|
case ':':
|
|
|
|
retval = execute_command(ec, cmdline);
|
|
|
|
break;
|
|
|
|
case '/':
|
|
|
|
case ';':
|
|
|
|
setup_logline_table();
|
|
|
|
retval = execute_sql(ec, cmdline, alt_msg);
|
|
|
|
break;
|
|
|
|
case '|':
|
|
|
|
retval = execute_file(ec, cmdline);
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
retval = execute_command(ec, cmdline);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (rescan_files()) {
|
|
|
|
rebuild_indexes(true);
|
|
|
|
}
|
|
|
|
|
|
|
|
log_info("%s:%d:execute result -- %s",
|
|
|
|
path.c_str(),
|
|
|
|
line_number,
|
|
|
|
retval.c_str());
|
|
|
|
|
|
|
|
return retval;
|
|
|
|
}
|
|
|
|
|
|
|
|
string execute_any(exec_context &ec, const string &cmdline_with_mode)
|
|
|
|
{
|
|
|
|
string retval, alt_msg, cmdline = cmdline_with_mode.substr(1);
|
|
|
|
|
|
|
|
switch (cmdline_with_mode[0]) {
|
|
|
|
case ':':
|
|
|
|
retval = execute_command(ec, cmdline);
|
|
|
|
break;
|
|
|
|
case '/':
|
|
|
|
case ';':
|
|
|
|
setup_logline_table();
|
|
|
|
retval = execute_sql(ec, cmdline, alt_msg);
|
|
|
|
break;
|
|
|
|
case '|': {
|
|
|
|
retval = execute_file(ec, cmdline);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
default:
|
|
|
|
retval = execute_command(ec, cmdline);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (rescan_files()) {
|
|
|
|
rebuild_indexes(true);
|
|
|
|
}
|
|
|
|
|
|
|
|
return retval;
|
|
|
|
}
|
|
|
|
|
|
|
|
void execute_init_commands(exec_context &ec, vector<pair<string, string> > &msgs)
|
|
|
|
{
|
|
|
|
if (lnav_data.ld_cmd_init_done) {
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
log_info("Executing initial commands");
|
|
|
|
for (auto &cmd : lnav_data.ld_commands) {
|
|
|
|
string msg, alt_msg;
|
|
|
|
|
|
|
|
switch (cmd.at(0)) {
|
|
|
|
case ':':
|
|
|
|
msg = execute_command(ec, cmd.substr(1));
|
|
|
|
break;
|
|
|
|
case '/':
|
|
|
|
case ';':
|
|
|
|
setup_logline_table();
|
|
|
|
msg = execute_sql(ec, cmd.substr(1), alt_msg);
|
|
|
|
break;
|
|
|
|
case '|':
|
|
|
|
msg = execute_file(ec, cmd.substr(1));
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
msgs.push_back(make_pair(msg, alt_msg));
|
|
|
|
|
|
|
|
if (rescan_files()) {
|
|
|
|
rebuild_indexes(true);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
lnav_data.ld_commands.clear();
|
|
|
|
|
|
|
|
if (!lnav_data.ld_pt_search.empty()) {
|
|
|
|
#ifdef HAVE_LIBCURL
|
|
|
|
unique_ptr<papertrail_proc> pt(new papertrail_proc(
|
|
|
|
lnav_data.ld_pt_search.substr(3),
|
|
|
|
lnav_data.ld_pt_min_time,
|
|
|
|
lnav_data.ld_pt_max_time));
|
|
|
|
lnav_data.ld_file_names[lnav_data.ld_pt_search]
|
|
|
|
.with_fd(pt->copy_fd());
|
|
|
|
lnav_data.ld_curl_looper.add_request(pt.release());
|
|
|
|
#endif
|
|
|
|
}
|
|
|
|
|
|
|
|
lnav_data.ld_cmd_init_done = true;
|
|
|
|
}
|
|
|
|
|
|
|
|
int sql_callback(exec_context &ec, sqlite3_stmt *stmt)
|
|
|
|
{
|
|
|
|
logfile_sub_source &lss = lnav_data.ld_log_source;
|
|
|
|
db_label_source &dls = lnav_data.ld_db_row_source;
|
|
|
|
stacked_bar_chart<std::string> &chart = dls.dls_chart;
|
|
|
|
view_colors &vc = view_colors::singleton();
|
|
|
|
int ncols = sqlite3_column_count(stmt);
|
|
|
|
int row_number;
|
|
|
|
int lpc, retval = 0;
|
|
|
|
|
|
|
|
row_number = dls.dls_rows.size();
|
|
|
|
dls.dls_rows.resize(row_number + 1);
|
|
|
|
if (dls.dls_headers.empty()) {
|
|
|
|
for (lpc = 0; lpc < ncols; lpc++) {
|
|
|
|
int type = sqlite3_column_type(stmt, lpc);
|
|
|
|
string colname = sqlite3_column_name(stmt, lpc);
|
|
|
|
bool graphable;
|
|
|
|
|
|
|
|
graphable = ((type == SQLITE_INTEGER || type == SQLITE_FLOAT) &&
|
|
|
|
!binary_search(lnav_data.ld_db_key_names.begin(),
|
|
|
|
lnav_data.ld_db_key_names.end(),
|
|
|
|
colname));
|
|
|
|
|
|
|
|
dls.push_header(colname, type, graphable);
|
|
|
|
if (graphable) {
|
|
|
|
int attrs = vc.attrs_for_ident(colname);
|
|
|
|
chart.with_attrs_for_ident(colname, attrs);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
for (lpc = 0; lpc < ncols; lpc++) {
|
|
|
|
const char *value = (const char *)sqlite3_column_text(stmt, lpc);
|
|
|
|
|
|
|
|
dls.push_column(value);
|
|
|
|
if (value != NULL &&
|
|
|
|
(dls.dls_headers[lpc].hm_name == "log_line" ||
|
|
|
|
dls.dls_headers[lpc].hm_name == "min(log_line)")) {
|
|
|
|
int line_number = -1;
|
|
|
|
|
|
|
|
if (sscanf(value, "%d", &line_number) == 1) {
|
|
|
|
lss.text_mark(&BM_QUERY, line_number, true);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
return retval;
|
|
|
|
}
|
|
|
|
|
|
|
|
future<string> pipe_callback(exec_context &ec, const string &cmdline, auto_fd &fd)
|
|
|
|
{
|
|
|
|
auto pp = make_shared<piper_proc>(fd, false);
|
|
|
|
static int exec_count = 0;
|
|
|
|
char desc[128];
|
|
|
|
|
|
|
|
lnav_data.ld_pipers.push_back(pp);
|
|
|
|
snprintf(desc,
|
|
|
|
sizeof(desc), "[%d] Output of %s",
|
|
|
|
exec_count++,
|
|
|
|
cmdline.c_str());
|
|
|
|
lnav_data.ld_file_names[desc]
|
|
|
|
.with_fd(pp->get_fd())
|
|
|
|
.with_detect_format(false);
|
|
|
|
lnav_data.ld_files_to_front.push_back(make_pair(desc, 0));
|
|
|
|
if (lnav_data.ld_rl_view != NULL) {
|
|
|
|
lnav_data.ld_rl_view->set_alt_value(HELP_MSG_1(
|
|
|
|
X, "to close the file"));
|
|
|
|
}
|
|
|
|
|
|
|
|
packaged_task<string()> task([]() { return ""; });
|
|
|
|
|
|
|
|
task();
|
|
|
|
|
|
|
|
return task.get_future();
|
|
|
|
}
|