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lighttpd2/src/modules/mod_status.c

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/*
* mod_status - display server status
*
* Description:
* mod_status can display a page with statistics like requests, traffic and active connections.
* It can be customized with different stylesheets (css)
*
* Setups:
* none
* Options:
* status.css <name|url> - set the stylesheet to use, optional
* type: string; values: "default", "blue" or a url to an external css file
* Actions:
* status.info - returns the status info page to the client
*
* Example config:
* req.path == "/srv-status" {
* status.css = "http://mydomain/status.css";
* status.info;
* }
*
* Todo:
* - add querystring parameter format=plain
*
* Author:
* Copyright (c) 2008-2009 Thomas Porzelt
* License:
* MIT, see COPYING file in the lighttpd 2 tree
*/
#include <lighttpd/base.h>
#include <lighttpd/collect.h>
#include <lighttpd/encoding.h>
#include <lighttpd/plugin_core.h>
LI_API gboolean mod_status_init(liModules *mods, liModule *mod);
LI_API gboolean mod_status_free(liModules *mods, liModule *mod);
static liHandlerResult status_info_runtime(liVRequest *vr, liPlugin *p);
static gint str_comp(gconstpointer a, gconstpointer b);
/* html snippet constants */
static const gchar html_header[] =
"<?xml version=\"1.0\" encoding=\"iso-8859-1\"?>\n"
"<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Transitional//EN\"\n"
" \"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd\">\n"
"<html xmlns=\"http://www.w3.org/1999/xhtml\" xml:lang=\"en\" lang=\"en\">\n"
" <head>\n"
" <title>Lighttpd Status</title>\n";
static const gchar html_js[] =
" <script type=\"text/javascript\">\n"
" // <!--\n"
" var sort_dir = 'asc';\n"
" var prev_arrow = null;\n"
" var prev_elem = null;\n"
" function sort(elem, index) {\n"
" var table = elem.parentNode.parentNode.parentNode.parentNode;\n"
" var arrow = elem.parentNode.childNodes[elem.parentNode.childNodes.length - 1];\n"
" var column = elem.parentNode.cellIndex;\n"
" var rows = new Array();\n"
" for (i=1; i < table.rows.length; i++)\n"
" rows.push(table.rows[i]);\n"
" if (elem.className.indexOf('string') != -1) {\n"
" rows.sort(function (a, b) {\n"
" var text_a = a.cells[column].childNodes[index].innerHTML.toLowerCase();\n"
" var text_b = b.cells[column].childNodes[index].innerHTML.toLowerCase();\n"
" if (text_a == text_b) return 0;\n"
" return (text_a < text_b) ? -1 : 1;\n"
" });\n"
" } else {\n"
" rows.sort(function (a, b) {\n"
" var int_a = parseInt(a.cells[column].childNodes[index].getAttribute('value'));\n"
" var int_b = parseInt(b.cells[column].childNodes[index].getAttribute('value'));\n"
" return int_a - int_b;\n"
" });\n"
" }\n"
" if (prev_elem == elem) {\n"
" sort_dir = (sort_dir == 'asc') ? 'desc' : 'asc';\n"
" arrow.innerHTML = (sort_dir == 'asc') ? '&darr;' : '&uarr;';\n"
" } else {\n"
" elem.style.fontWeight = 'bold';\n"
" if (prev_elem != null) {\n"
" prev_arrow.innerHTML = '';\n"
" prev_elem.style.fontWeight = 'normal';\n"
" }\n"
" if (elem.className.indexOf('string') != -1) {\n"
" sort_dir = 'asc';\n"
" arrow.innerHTML = '&darr;';\n"
" } else {\n"
" sort_dir = 'desc';\n"
" arrow.innerHTML = '&uarr;';\n"
" }\n"
" }\n"
" if (sort_dir == 'desc')\n"
" rows.reverse();\n"
" for (i=0; i < rows.length; i++)\n"
" table.tBodies[0].appendChild(rows[i]);\n"
" prev_arrow = arrow;\n"
" prev_elem = elem;\n"
" }\n"
" // -->\n"
" </script>\n";
static const gchar html_top[] =
" <div class=\"header\">Lighttpd Server Status | \n"
" <span style=\"font-size: 12px;\"><a href=\"?\">main</a></strong> - <a href=\"?mode=runtime\">runtime</a></span>"
" </div>\n"
" <div class=\"spacer\">\n"
" <strong>Hostname</strong>: <span>%s</span>"
" <strong>Uptime</strong>: <span>%s</span>\n"
" <strong>Started at</strong>: <span>%s</span>\n"
" <strong>Version</strong>: <span>" PACKAGE_VERSION " (" __DATE__ " " __TIME__ ")</span>\n"
" </div>\n";
static const gchar html_top_short[] =
" <div class=\"header\">Lighttpd Server Status</div>\n"
" <div class=\"spacer\">\n"
" <strong>Hostname</strong>: <span>%s</span>"
" <strong>Uptime</strong>: <span>%s</span>\n"
" <strong>Started at</strong>: <span>%s</span>\n"
" </div>\n";
static const gchar html_worker_th[] =
" <table cellspacing=\"0\">\n"
" <tr>\n"
" <th style=\"width: 100px;\"></th>\n"
" <th style=\"width: 175px;\">Requests</th>\n"
" <th style=\"width: 175px;\">Traffic in</th>\n"
" <th style=\"width: 175px;\">Traffic out</th>\n"
" <th style=\"width: 175px;\">Active connections</th>\n"
" </tr>\n";
static const gchar html_worker_th_avg[] =
" <table cellspacing=\"0\">\n"
" <tr>\n"
" <th style=\"width: 100px;\"></th>\n"
" <th style=\"width: 175px;\">Requests / s</th>\n"
" <th style=\"width: 175px;\">Traffic in / s</th>\n"
" <th style=\"width: 175px;\">Traffic out / s</th>\n"
" <th style=\"width: 175px;\">Active connections</th>\n"
" </tr>\n";
static const gchar html_worker_row[] =
" <tr class=\"%s\">\n"
" <td class=\"left\">%s</td>\n"
" <td>%s (%" G_GUINT64_FORMAT "%%)</td>\n"
" <td>%s (%" G_GUINT64_FORMAT "%%)</td>\n"
" <td>%s (%" G_GUINT64_FORMAT "%%)</td>\n"
" <td>%u (%u%%)</td>\n"
" </tr>\n";
static const gchar html_worker_row_avg[] =
" <tr class=\"%s\">\n"
" <td class=\"left\">%s</td>\n"
" <td>%s</td>\n"
" <td>%s</td>\n"
" <td>%s</td>\n"
" <td>%u</td>\n"
" </tr>\n";
static const gchar html_connections_th[] =
" <table cellspacing=\"0\">\n"
" <tr>\n"
" <th class=\"left\"><span class=\"string\" onclick=\"sort(this, 0); return false;\">Client</span><span></span></th>\n"
" <th style=\"width: 140px;\"><span class=\"string\" onclick=\"sort(this, 0); return false;\">State</span><span></span></th>\n"
" <th style=\"width: 170px;\"><span class=\"string\" onclick=\"sort(this, 0); return false;\">Host</span><span></span></th>\n"
" <th><span class=\"string\" onclick=\"sort(this, 0); return false;\">Path+Querystring</span><span></span></th>\n"
" <th><span class=\"int\" onclick=\"sort(this, 0); return false;\">Duration</span><span></span></th>\n"
" <th>Traffic <span class=\"int\" onclick=\"sort(this, 0); return false;\">in</span><span>/</span><span class=\"int\" onclick=\"sort(this, 2); return false;\">out</span><span></span></th>\n"
" <th>Traffic <span class=\"int\" onclick=\"sort(this, 0); return false;\">in</span><span>/</span><span class=\"int\" onclick=\"sort(this, 2); return false;\">out</span><span> / s</span><span></span></th>\n"
" <th><span class=\"string\" onclick=\"sort(this, 0); return false;\">Method</span><span></span></th>\n"
" <th><span class=\"int\" onclick=\"sort(this, 0); return false;\">Request Size</span><span></span></th>\n"
" <th><span class=\"int\" onclick=\"sort(this, 0); return false;\">Response Size</span><span></span></th>\n"
" </tr>\n";
static const gchar html_connections_row[] =
" <tr>\n"
" <td class=\"left\"><span>%s</span></td>\n"
" <td><span>%s</span></td>\n"
" <td><span>%s</span></td>\n"
" <td class=\"left\"><span>%s%s%s</span></td>\n"
" <td><span value=\"%"G_GUINT64_FORMAT"\">%s</span></td>\n"
" <td><span value=\"%"G_GUINT64_FORMAT"\">%s</span><span> / </span><span value=\"%"G_GUINT64_FORMAT"\">%s</span></td>\n"
" <td><span value=\"%"G_GUINT64_FORMAT"\">%s</span><span> / </span><span value=\"%"G_GUINT64_FORMAT"\">%s</span></td>\n"
" <td><span>%s</span></td>\n"
" <td><span value=\"%"G_GUINT64_FORMAT"\">%s</span></td>\n"
" <td><span value=\"%"G_GUINT64_FORMAT"\">%s</span></td>\n"
" </tr>\n";
static const gchar html_server_info[] =
" <table cellspacing=\"0\">\n"
" <tr>\n"
" <td class=\"left\" style=\"width: 100px;\">Hostname</td>\n"
" <td class=\"left\">%s</td>\n"
" </tr>\n"
" <tr>\n"
" <td class=\"left\">User</td>\n"
" <td class=\"left\">%s (%u)</td>\n"
" </tr>\n"
" <td class=\"left\">Event handler</td>\n"
" <td class=\"left\">%s</td>\n"
" </table>\n";
static const gchar html_libinfo_th[] =
" <table cellspacing=\"0\">\n"
" <tr>\n"
" <th style=\"width: 100px;\"></th>\n"
" <th style=\"width: 100px;\">linked</th>\n"
" <th style=\"width: 100px;\">headers</th>\n"
" </tr>\n";
static const gchar html_libinfo_row[] =
" <tr>\n"
" <td class=\"left\">%s</td>\n"
" <td style=\"text-align: center;\">%s</td>\n"
" <td style=\"text-align: center;\">%s</td>\n"
" </tr>\n";
static const gchar html_libev_th[] =
" <table cellspacing=\"0\">\n"
" <tr>\n"
" <th style=\"width: 100px;\"></th>\n"
" <th style=\"width: 100px;\">select</th>\n"
" <th style=\"width: 100px;\">poll</th>\n"
" <th style=\"width: 100px;\">epoll</th>\n"
" <th style=\"width: 100px;\">kqueue</th>\n"
" <th style=\"width: 100px;\">/dev/poll</th>\n"
" <th style=\"width: 125px;\">solaris event port</th>\n"
" </tr>\n";
static const gchar html_libev_row[] =
" <tr>\n"
" <td class=\"left\">%s</td>\n"
" <td style=\"text-align: center;\">%s</td>\n"
" <td style=\"text-align: center;\">%s</td>\n"
" <td style=\"text-align: center;\">%s</td>\n"
" <td style=\"text-align: center;\">%s</td>\n"
" <td style=\"text-align: center;\">%s</td>\n"
" <td style=\"text-align: center;\">%s</td>\n"
" </tr>\n";
static const gchar css_default[] =
" <style type=\"text/css\">\n"
" body { margin: 0; padding: 0; font-family: \"lucida grande\",tahoma,verdana,arial,sans-serif; font-size: 12px; }\n"
" .header { padding: 5px; background-color: #6D84B4; font-size: 16px; color: white; border: 1px solid #3B5998; font-weight: bold; }\n"
" .header a { color: #F2F2F2; }\n"
" .spacer { background-color: #F2F2F2; border-bottom: 1px solid #CCC; padding: 5px; }\n"
" .spacer span { padding-right: 25px; }\n"
" .title { margin-left: 6px; margin-top: 20px; margin-bottom: 5px; }\n"
" .text { margin-left: 6px; margin-bottom: 5px; }\n"
" table { margin-left: 5px; border: 1px solid #CCC; }\n"
" th { font-weight: normal; padding: 3px; background-color: #E0E0E0;\n"
" border-bottom: 1px solid #BABABA; border-right: 1px solid #BABABA; border-top: 1px solid #FEFEFE; }\n"
" td { text-align: right; padding: 3px; border-bottom: 1px solid #F0F0F0; border-right: 1px solid #F8F8F8; }\n"
" .left { text-align: left; }\n"
" .totals td { border-top: 1px solid #DDDDDD; }\n"
" </style>\n";
/* blue theme by nitrox */
static const gchar css_blue[] =
" <style type=\"text/css\">\n"
" body { margin: 0; padding: 0; font-family: \"lucida grande\",tahoma,verdana,arial,sans-serif; font-size: 12px; background-color: #6d84b4; }\n"
" .header { padding: 5px; background-color: #6D84B4; font-size: 16px; color: white; border: 1px solid #3B5998; font-weight: bold; }\n"
" .header a { color: #F2F2F2; }\n"
" .spacer { background-color: #F2F2F2; border-bottom: 1px solid #CCC; padding: 5px; }\n"
" .spacer span { padding-right: 25px; }\n"
" .title { margin-left: 6px; margin-top: 20px; margin-bottom: 5px; }\n"
" .text { margin-left: 6px; margin-bottom: 5px; }\n"
" table { margin-left: 5px; border: 1px solid #CCC; }\n"
" th { font-weight: normal; padding: 3px; background-color: #E0E0E0;\n"
" border-bottom: 1px solid #BABABA; border-right: 1px solid #BABABA; border-top: 1px solid #FEFEFE; }\n"
" td { text-align: right; padding: 3px; border-bottom: 1px solid #F0F0F0; border-right: 1px solid #F8F8F8; }\n"
" .left { text-align: left; }\n"
" .totals td { border-top: 1px solid #DDDDDD; }\n"
" </style>\n";
typedef struct mod_status_param mod_status_param;
struct mod_status_param {
liPlugin *p;
gboolean short_info; /* no connection details */
};
typedef struct mod_status_wrk_data mod_status_wrk_data;
typedef struct mod_status_con_data mod_status_con_data;
typedef struct mod_status_job mod_status_job;
struct mod_status_con_data {
guint worker_ndx;
liConnectionState state;
GString *remote_addr_str, *local_addr_str;
gboolean is_ssl, keep_alive;
GString *host, *path, *query;
liHttpMethod method;
goffset request_size;
goffset response_size;
ev_tstamp ts;
guint64 bytes_in;
guint64 bytes_out;
guint64 bytes_in_5s_diff;
guint64 bytes_out_5s_diff;
};
struct mod_status_wrk_data {
guint worker_ndx;
liStatistics stats;
GArray *connections;
};
struct mod_status_job {
liVRequest *vr;
gpointer *context;
liPlugin *p;
gboolean short_info;
};
static gchar status_state_c(liConnectionState state) {
static const gchar states[] = "dksrhw";
return states[state];
}
/* the CollectFunc */
static gpointer status_collect_func(liWorker *wrk, gpointer fdata) {
mod_status_wrk_data *sd = g_slice_new(mod_status_wrk_data);
UNUSED(fdata);
sd->stats = wrk->stats;
sd->worker_ndx = wrk->ndx;
/* gather connection info */
sd->connections = g_array_sized_new(FALSE, TRUE, sizeof(mod_status_con_data), wrk->connections_active);
g_array_set_size(sd->connections, wrk->connections_active);
for (guint i = 0; i < wrk->connections_active; i++) {
liConnection *c = g_array_index(wrk->connections, liConnection*, i);
mod_status_con_data *cd = &g_array_index(sd->connections, mod_status_con_data, i);
cd->is_ssl = c->is_ssl;
cd->keep_alive = c->keep_alive;
cd->remote_addr_str = g_string_new_len(GSTR_LEN(c->remote_addr_str));
cd->local_addr_str = g_string_new_len(GSTR_LEN(c->local_addr_str));
cd->host = g_string_new_len(GSTR_LEN(c->mainvr->request.uri.host));
cd->path = g_string_new_len(GSTR_LEN(c->mainvr->request.uri.path));
cd->query = g_string_new_len(GSTR_LEN(c->mainvr->request.uri.query));
cd->method = c->mainvr->request.http_method;
cd->request_size = c->mainvr->request.content_length;
cd->response_size = c->mainvr->out->bytes_out;
cd->state = c->state;
cd->ts = c->ts;
cd->bytes_in = c->stats.bytes_in;
cd->bytes_out = c->stats.bytes_out;
cd->bytes_in_5s_diff = c->stats.bytes_in_5s_diff;
cd->bytes_out_5s_diff = c->stats.bytes_out_5s_diff;
}
return sd;
}
/* the CollectCallback */
static void status_collect_cb(gpointer cbdata, gpointer fdata, GPtrArray *result, gboolean complete) {
mod_status_job *job = fdata;
liVRequest *vr = job->vr;
liPlugin *p = job->p;
gboolean short_info = job->short_info;
UNUSED(cbdata);
if (!complete) {
/* someone called li_collect_break, so we don't need any vrequest handling here. just free the result data */
guint i, j;
for (i = 0; i < result->len; i++) {
mod_status_wrk_data *sd = g_ptr_array_index(result, i);
for (j = 0; j < sd->connections->len; j++) {
mod_status_con_data *cd = &g_array_index(sd->connections, mod_status_con_data, j);
g_string_free(cd->remote_addr_str, TRUE);
g_string_free(cd->local_addr_str, TRUE);
g_string_free(cd->host, TRUE);
g_string_free(cd->path, TRUE);
}
g_array_free(sd->connections, TRUE);
g_slice_free(mod_status_wrk_data, sd);
}
g_slice_free(mod_status_job, job);
return;
}
/* clear context so it doesn't get cleaned up anymore */
*(job->context) = NULL;
g_slice_free(mod_status_job, job);
if (complete) {
GString *html;
GString *tmpstr;
GString *count_req, *count_bin, *count_bout;
guint uptime;
guint total_connections = 0;
guint i;
guint j;
/* we got everything */
liStatistics totals = {
G_GUINT64_CONSTANT(0), G_GUINT64_CONSTANT(0), G_GUINT64_CONSTANT(0), G_GUINT64_CONSTANT(0),
G_GUINT64_CONSTANT(0), G_GUINT64_CONSTANT(0), G_GUINT64_CONSTANT(0), G_GUINT64_CONSTANT(0),
G_GUINT64_CONSTANT(0), G_GUINT64_CONSTANT(0), G_GUINT64_CONSTANT(0),
0, 0, G_GUINT64_CONSTANT(0), 0, 0
};
uptime = CUR_TS(vr->wrk) - vr->wrk->srv->started;
if (!uptime)
uptime = 1;
html = g_string_sized_new(8 * 1024 - 1);
count_req = g_string_sized_new(10);
count_bin = g_string_sized_new(10);
count_bout = g_string_sized_new(10);
tmpstr = g_string_sized_new(10);
if (CORE_OPTION(LI_CORE_OPTION_DEBUG_REQUEST_HANDLING).boolean) {
VR_DEBUG(vr, "finished collecting data: %s", complete ? "complete" : "not complete");
}
/* calculate total stats over all workers */
for (i = 0; i < result->len; i++) {
mod_status_wrk_data *sd = g_ptr_array_index(result, i);
totals.bytes_out += sd->stats.bytes_out;
totals.bytes_in += sd->stats.bytes_in;
totals.requests += sd->stats.requests;
totals.actions_executed += sd->stats.actions_executed;
total_connections += sd->connections->len;
totals.requests_5s_diff += sd->stats.requests_5s_diff;
totals.bytes_in_5s_diff += sd->stats.bytes_in_5s_diff;
totals.bytes_out_5s_diff += sd->stats.bytes_out_5s_diff;
totals.active_cons_cum += sd->stats.active_cons_cum;
totals.active_cons_5s += sd->stats.active_cons_5s;
}
g_string_append_len(html, CONST_STR_LEN(html_header));
g_string_append_len(html, CONST_STR_LEN(html_js));
/* auto refresh */
{
gchar *val;
guint len;
gchar c;
if (li_querystring_find(vr->request.uri.query, CONST_STR_LEN("refresh"), &val, &len)) {
g_string_append_len(html, CONST_STR_LEN("<meta http-equiv=\"refresh\" content=\""));
/* temp char swap */
c = val[len]; val[len] = '\0';
li_string_encode_append(val, html, LI_ENCODING_HTML);
val[len] = c;
g_string_append_len(html, CONST_STR_LEN("\">\n"));
}
}
/* css */
{
GString *css = _OPTION(vr, p, 0).string;
if (!css || !css->len) /* default css */
g_string_append_len(html, CONST_STR_LEN(css_default));
else if (g_str_equal(css->str, "blue")) /* blue css */
g_string_append_len(html, CONST_STR_LEN(css_blue));
else /* external css */
g_string_append_printf(html, " <link rel=\"stylesheet\" rev=\"stylesheet\" href=\"%s\" media=\"screen\" />\n", css->str);
}
g_string_append_len(html, CONST_STR_LEN(
" </head>\n"
" <body>\n"
));
li_counter_format((guint64)(CUR_TS(vr->wrk) - vr->wrk->srv->started), COUNTER_TIME, tmpstr);
g_string_append_printf(html, short_info ? html_top_short : html_top,
vr->request.uri.host->str,
tmpstr->str,
vr->wrk->srv->started_str->str
);
/* worker information, absolute values */
{
g_string_append_len(html, CONST_STR_LEN(" <div class=\"title\"><strong>Absolute stats</strong></div>\n"));
g_string_append_len(html, CONST_STR_LEN(html_worker_th));
#define PERCENTAGE(x, y) (y ? (x * 100 / y) : 0)
for (i = 0; i < result->len; i++) {
mod_status_wrk_data *sd = g_ptr_array_index(result, i);
li_counter_format(sd->stats.requests, COUNTER_UNITS, count_req);
li_counter_format(sd->stats.bytes_in, COUNTER_BYTES, count_bin);
li_counter_format(sd->stats.bytes_out, COUNTER_BYTES, count_bout);
g_string_printf(tmpstr, "Worker #%u", i+1);
g_string_append_printf(html, html_worker_row, "", tmpstr->str,
count_req->str, PERCENTAGE(sd->stats.requests, totals.requests),
count_bin->str, PERCENTAGE(sd->stats.bytes_in, totals.bytes_in),
count_bout->str, PERCENTAGE(sd->stats.bytes_out, totals.bytes_out),
sd->connections->len, PERCENTAGE(sd->connections->len, total_connections));
}
#undef PERCENTAGE
li_counter_format(totals.requests, COUNTER_UNITS, count_req);
li_counter_format(totals.bytes_in, COUNTER_BYTES, count_bin);
li_counter_format(totals.bytes_out, COUNTER_BYTES, count_bout);
g_string_append_printf(html, html_worker_row, "totals", "Total",
count_req->str, G_GUINT64_CONSTANT(100),
count_bin->str, G_GUINT64_CONSTANT(100),
count_bout->str, G_GUINT64_CONSTANT(100),
total_connections, 100);
g_string_append_len(html, CONST_STR_LEN(" </table>\n"));
}
/* worker information, avg values */
{
g_string_append_len(html, CONST_STR_LEN("<div class=\"title\"><strong>Average stats</strong> (since start)</div>\n"));
g_string_append_len(html, CONST_STR_LEN(html_worker_th_avg));
#define PERCENTAGE(x) (sd->stat ## x ? (sd->stat ## x * 100 / total ## x) : 0)
for (i = 0; i < result->len; i++) {
mod_status_wrk_data *sd = g_ptr_array_index(result, i);
li_counter_format(sd->stats.requests / uptime, COUNTER_UNITS, count_req);
li_counter_format(sd->stats.bytes_in / uptime, COUNTER_BYTES, count_bin);
li_counter_format(sd->stats.bytes_out / uptime, COUNTER_BYTES, count_bout);
g_string_printf(tmpstr, "Worker #%u", i+1);
g_string_append_printf(html, html_worker_row_avg, "", tmpstr->str,
count_req->str,
count_bin->str,
count_bout->str,
(guint)(sd->stats.active_cons_cum / uptime)
);
}
#undef PERCENTAGE
li_counter_format(totals.requests / uptime, COUNTER_UNITS, count_req);
li_counter_format(totals.bytes_in / uptime, COUNTER_BYTES, count_bin);
li_counter_format(totals.bytes_out / uptime, COUNTER_BYTES, count_bout);
g_string_append_printf(html, html_worker_row_avg, "totals", "Total",
count_req->str,
count_bin->str,
count_bout->str,
(guint)(totals.active_cons_cum / uptime)
);
g_string_append_len(html, CONST_STR_LEN(" </table>\n"));
}
/* worker information, 5 seconds avg values */
{
g_string_append_len(html, CONST_STR_LEN("<div class=\"title\"><strong>Average stats</strong> (5 seconds)</div>\n"));
g_string_append_len(html, CONST_STR_LEN(html_worker_th_avg));
#define PERCENTAGE(x) (sd->stat ## x ? (sd->stat ## x * 100 / total ## x) : 0)
for (i = 0; i < result->len; i++) {
mod_status_wrk_data *sd = g_ptr_array_index(result, i);
li_counter_format(sd->stats.requests_5s_diff / G_GUINT64_CONSTANT(5), COUNTER_UNITS, count_req);
li_counter_format(sd->stats.bytes_in_5s_diff / G_GUINT64_CONSTANT(5), COUNTER_BYTES, count_bin);
li_counter_format(sd->stats.bytes_out_5s_diff / G_GUINT64_CONSTANT(5), COUNTER_BYTES, count_bout);
g_string_printf(tmpstr, "Worker #%u", i+1);
g_string_append_printf(html, html_worker_row_avg, "", tmpstr->str,
count_req->str,
count_bin->str,
count_bout->str,
sd->stats.active_cons_5s
);
}
#undef PERCENTAGE
li_counter_format(totals.requests_5s_diff / G_GUINT64_CONSTANT(5), COUNTER_UNITS, count_req);
li_counter_format(totals.bytes_in_5s_diff / G_GUINT64_CONSTANT(5), COUNTER_BYTES, count_bin);
li_counter_format(totals.bytes_out_5s_diff / G_GUINT64_CONSTANT(5), COUNTER_BYTES, count_bout);
g_string_append_printf(html, html_worker_row_avg, "totals", "Total",
count_req->str,
count_bin->str,
count_bout->str,
totals.active_cons_5s
);
g_string_append_len(html, CONST_STR_LEN(" </table>\n"));
}
/* scoreboard */
{
guint k = 0;
g_string_append_printf(html, "<div class=\"title\"><strong>%u connections</strong></div>\n<div class=\"text\">", total_connections);
for (i = 0; i < result->len; i++) {
mod_status_wrk_data *sd = g_ptr_array_index(result, i);
for (j = 0; j < sd->connections->len; j++) {
mod_status_con_data *cd = &g_array_index(sd->connections, mod_status_con_data, j);
k++;
if (k == 100) {
g_string_append_len(html, CONST_STR_LEN("<br />\n"));
k = 0;
}
g_string_append_c(html, status_state_c(cd->state));
}
}
g_string_append_len(html, CONST_STR_LEN("</div>\n<div class=\"title\" style=\"margin-top: 10px;\"><strong>legend</strong></div>\n<div class=\"text\">"
"d = dead, k = keep-alive, s = request start, r = read request header, h = handle main vrequest, w = write"
"</div>\n"));
}
/* list connections */
if (!short_info) {
GString *ts, *bytes_in, *bytes_out, *bytes_in_5s, *bytes_out_5s;
GString *req_len, *resp_len;
guint len;
ts = g_string_sized_new(15);
bytes_in = g_string_sized_new(10);
bytes_out = g_string_sized_new(10);
bytes_in_5s = g_string_sized_new(10);
bytes_out_5s = g_string_sized_new(10);
req_len = g_string_sized_new(10);
resp_len = g_string_sized_new(10);
g_string_append_len(html, CONST_STR_LEN("<div class=\"title\"><strong>Active connections</strong></div>\n"));
g_string_append_len(html, CONST_STR_LEN(html_connections_th));
for (i = 0; i < result->len; i++) {
mod_status_wrk_data *sd = g_ptr_array_index(result, i);
for (j = 0; j < sd->connections->len; j++) {
mod_status_con_data *cd = &g_array_index(sd->connections, mod_status_con_data, j);
li_counter_format((guint64)(CUR_TS(vr->wrk) - cd->ts), COUNTER_TIME, ts);
li_counter_format(cd->bytes_in, COUNTER_BYTES, bytes_in);
li_counter_format(cd->bytes_in_5s_diff / G_GUINT64_CONSTANT(5), COUNTER_BYTES, bytes_in_5s);
li_counter_format(cd->bytes_out, COUNTER_BYTES, bytes_out);
li_counter_format(cd->bytes_out_5s_diff / G_GUINT64_CONSTANT(5), COUNTER_BYTES, bytes_out_5s);
li_counter_format(cd->request_size, COUNTER_BYTES, req_len);
li_counter_format(cd->response_size, COUNTER_BYTES, resp_len);
g_string_append_printf(html, html_connections_row,
cd->remote_addr_str->str,
li_connection_state_str(cd->state),
cd->host->str,
cd->path->str,
cd->query->len ? "?":"",
cd->query->len ? cd->query->str : "",
(guint64)(CUR_TS(vr->wrk) - cd->ts), ts->str,
cd->bytes_in, bytes_in->str,
cd->bytes_out, bytes_out->str,
cd->bytes_in_5s_diff / G_GUINT64_CONSTANT(5), bytes_in_5s->str,
cd->bytes_out_5s_diff / G_GUINT64_CONSTANT(5), bytes_out_5s->str,
(cd->state >= LI_CON_STATE_HANDLE_MAINVR) ? li_http_method_string(cd->method, &len) : "",
cd->request_size != -1 ? cd->request_size : 0, (cd->state >= LI_CON_STATE_HANDLE_MAINVR && cd->request_size != -1) ? req_len->str : "",
cd->response_size, (cd->state >= LI_CON_STATE_HANDLE_MAINVR) ? resp_len->str : ""
);
g_string_free(cd->remote_addr_str, TRUE);
g_string_free(cd->local_addr_str, TRUE);
g_string_free(cd->host, TRUE);
g_string_free(cd->path, TRUE);
g_string_free(cd->query, TRUE);
}
g_array_free(sd->connections, TRUE);
}
g_string_append_len(html, CONST_STR_LEN(" </table>\n"));
g_string_free(ts, TRUE);
g_string_free(bytes_in, TRUE);
g_string_free(bytes_in_5s, TRUE);
g_string_free(bytes_out, TRUE);
g_string_free(bytes_out_5s, TRUE);
g_string_free(req_len, TRUE);
g_string_free(resp_len, TRUE);
} else {
for (i = 0; i < result->len; i++) {
mod_status_wrk_data *sd = g_ptr_array_index(result, i);
for (j = 0; j < sd->connections->len; j++) {
mod_status_con_data *cd = &g_array_index(sd->connections, mod_status_con_data, j);
g_string_free(cd->remote_addr_str, TRUE);
g_string_free(cd->local_addr_str, TRUE);
g_string_free(cd->host, TRUE);
g_string_free(cd->path, TRUE);
g_string_free(cd->query, TRUE);
}
g_array_free(sd->connections, TRUE);
}
}
/* free stats */
for (i = 0; i < result->len; i++) {
mod_status_wrk_data *sd = g_ptr_array_index(result, i);
g_slice_free(mod_status_wrk_data, sd);
}
g_string_append_len(html, CONST_STR_LEN(
" </body>\n"
"</html>\n"
));
li_chunkqueue_append_string(vr->out, html);
li_http_header_overwrite(vr->response.headers, CONST_STR_LEN("Content-Type"), CONST_STR_LEN("text/html"));
g_string_free(count_req, TRUE);
g_string_free(count_bin, TRUE);
g_string_free(count_bout, TRUE);
g_string_free(tmpstr, TRUE);
vr->response.http_status = 200;
li_vrequest_handle_direct(vr);
li_vrequest_joblist_append(vr);
} else {
/* something went wrong, client may have dropped the connection */
VR_ERROR(vr, "%s", "collect request didn't end up complete");
li_vrequest_error(vr);
}
}
static liHandlerResult status_info(liVRequest *vr, gpointer _param, gpointer *context) {
mod_status_param *param = _param;
gchar *val;
guint len;
switch (vr->request.http_method) {
case LI_HTTP_METHOD_GET:
case LI_HTTP_METHOD_HEAD:
break;
default:
return LI_HANDLER_GO_ON;
}
if (li_vrequest_is_handled(vr)) return LI_HANDLER_GO_ON;
if (!li_querystring_find(vr->request.uri.query, CONST_STR_LEN("mode"), &val, &len)) {
/* no 'mode' query parameter given */
liCollectInfo *ci;
mod_status_job *j = g_slice_new(mod_status_job);
j->vr = vr;
j->context = context;
j->p = param->p;
j->short_info = param->short_info;
if (CORE_OPTION(LI_CORE_OPTION_DEBUG_REQUEST_HANDLING).boolean) {
VR_DEBUG(vr, "%s", "collecting stats...");
}
ci = li_collect_start(vr->wrk, status_collect_func, j, status_collect_cb, NULL);
*context = ci; /* may be NULL */
return ci ? LI_HANDLER_WAIT_FOR_EVENT : LI_HANDLER_GO_ON;
} else {
/* 'mode' parameter given */
if (!param->short_info && strncmp(val, "runtime", len) == 0) {
return status_info_runtime(vr, param->p);
} else {
vr->response.http_status = 403;
li_vrequest_handle_direct(vr);
}
}
return LI_HANDLER_GO_ON;
}
static liHandlerResult status_info_cleanup(liVRequest *vr, gpointer param, gpointer context) {
liCollectInfo *ci = (liCollectInfo*) context;
UNUSED(vr);
UNUSED(param);
li_collect_break(ci);
return LI_HANDLER_GO_ON;
}
static void status_info_free(liServer *srv, gpointer param) {
UNUSED(srv);
g_slice_free(mod_status_param, param);
}
static liAction* status_info_create(liServer *srv, liPlugin* p, liValue *val) {
mod_status_param *param = g_slice_new0(mod_status_param);
UNUSED(srv);
UNUSED(val);
param->p = p;
param->short_info = FALSE;
if (val) {
if (val->type != LI_VALUE_STRING) {
ERROR(srv, "%s", "status.info expects either a string or nothing as parameter");
goto error_free_param;
}
if (0 == strcmp(val->data.string->str, "short")) {
param->short_info = TRUE;
} else {
ERROR(srv, "status.info: unexpected parameter '%s'", val->data.string->str);
goto error_free_param;
}
}
return li_action_new_function(status_info, status_info_cleanup, status_info_free, param);
error_free_param:
g_slice_free(mod_status_param, param);
return NULL;
}
static gint str_comp(gconstpointer a, gconstpointer b) {
return strcmp(*(const gchar**)a, *(const gchar**)b);
}
static liHandlerResult status_info_runtime(liVRequest *vr, liPlugin *p) {
GString *html;
html = g_string_sized_new(2047);
g_string_append_len(html, CONST_STR_LEN(html_header));
/* auto refresh */
{
gchar *val;
guint len;
gchar c;
if (li_querystring_find(vr->request.uri.query, CONST_STR_LEN("refresh"), &val, &len)) {
g_string_append_len(html, CONST_STR_LEN("<meta http-equiv=\"refresh\" content=\""));
/* temp char swap */
c = val[len]; val[len] = '\0';
li_string_encode_append(val, html, LI_ENCODING_HTML);
val[len] = c;
g_string_append_len(html, CONST_STR_LEN("\">\n"));
}
}
/* css */
{
GString* css = _OPTION(vr, p, 0).string;
if (!css || !css->len) /* default css */
g_string_append_len(html, CONST_STR_LEN(css_default));
else if (g_str_equal(css->str, "blue")) /* blue css */
g_string_append_len(html, CONST_STR_LEN(css_blue));
else /* external css */
g_string_append_printf(html, " <link rel=\"stylesheet\" rev=\"stylesheet\" href=\"%s\" media=\"screen\" />\n", css->str);
}
g_string_append_len(html, CONST_STR_LEN(
" </head>\n"
" <body>\n"
));
li_counter_format((guint64)(CUR_TS(vr->wrk) - vr->wrk->srv->started), COUNTER_TIME, vr->wrk->tmp_str);
g_string_append_printf(html, html_top,
vr->request.uri.host->str,
vr->wrk->tmp_str->str,
vr->wrk->srv->started_str->str
);
/* general info */
{
g_string_append_len(html, CONST_STR_LEN(" <div class=\"title\"><strong>Server info</strong></div>\n"));
g_string_append_printf(html, html_server_info,
g_get_host_name(), g_get_user_name(), getuid(), li_ev_backend_string(ev_backend(vr->wrk->loop))
);
}
/* library info */
{
GString *tmp_str = g_string_sized_new(31);
g_string_append_len(html, CONST_STR_LEN(" <div class=\"title\"><strong>Libraries</strong></div>\n"));
g_string_append_len(html, CONST_STR_LEN(html_libinfo_th));
g_string_truncate(tmp_str, 0);
g_string_append_printf(tmp_str, "%u.%u.%u", glib_major_version, glib_minor_version, glib_micro_version);
g_string_truncate(vr->wrk->tmp_str, 0);
g_string_append_printf(vr->wrk->tmp_str, "%u.%u.%u", GLIB_MAJOR_VERSION, GLIB_MINOR_VERSION, GLIB_MICRO_VERSION);
g_string_append_printf(html, html_libinfo_row, "GLib",
tmp_str->str,
vr->wrk->tmp_str->str
);
g_string_truncate(tmp_str, 0);
g_string_append_printf(tmp_str, "%u.%u", ev_version_major(), ev_version_minor());
g_string_truncate(vr->wrk->tmp_str, 0);
g_string_append_printf(vr->wrk->tmp_str, "%u.%u", EV_VERSION_MAJOR, EV_VERSION_MINOR);
g_string_append_printf(html, html_libinfo_row, "libev",
tmp_str->str,
vr->wrk->tmp_str->str
);
g_string_append_len(html, CONST_STR_LEN(" </table>\n"));
g_string_free(tmp_str, TRUE);
}
/* libev info */
{
guint i;
g_string_append_len(html, CONST_STR_LEN(" <div class=\"title\"><strong>libev backends</strong></div>\n"));
g_string_append_len(html, CONST_STR_LEN(html_libev_th));
/* supported backend, aka compiled in */
i = ev_supported_backends();
g_string_append_printf(html, html_libev_row, "supported",
i & EVBACKEND_SELECT ? "yes" : "no",
i & EVBACKEND_POLL ? "yes" : "no",
i & EVBACKEND_EPOLL ? "yes" : "no",
i & EVBACKEND_KQUEUE ? "yes" : "no",
i & EVBACKEND_DEVPOLL ? "yes" : "no",
i & EVBACKEND_PORT ? "yes" : "no"
);
/* recommended backends */
i = ev_recommended_backends();
g_string_append_printf(html, html_libev_row, "recommended",
i & EVBACKEND_SELECT ? "yes" : "no",
i & EVBACKEND_POLL ? "yes" : "no",
i & EVBACKEND_EPOLL ? "yes" : "no",
i & EVBACKEND_KQUEUE ? "yes" : "no",
i & EVBACKEND_DEVPOLL ? "yes" : "no",
i & EVBACKEND_PORT ? "yes" : "no"
);
g_string_append_len(html, CONST_STR_LEN(" </table>\n"));
}
/* list modules */
{
guint i, col;
gpointer k, v;
GHashTableIter iter;
GArray *list = g_array_sized_new(FALSE, FALSE, sizeof(gchar*), g_hash_table_size(vr->wrk->srv->plugins));
g_string_append_len(html, CONST_STR_LEN(" <div class=\"title\"><strong>Loaded modules</strong></div>\n"));
g_string_append_len(html, CONST_STR_LEN(" <table cellspacing=\"0\">\n"));
g_hash_table_iter_init(&iter, vr->wrk->srv->plugins);
while (g_hash_table_iter_next(&iter, &k, &v))
g_array_append_val(list, k);
g_array_sort(list, str_comp);
col = 0;
for (i = 1; i < list->len; i++) {
if (col == 0) {
g_string_append_len(html, CONST_STR_LEN(" <tr>\n"));
col++;
}
else if (col == 5) {
g_string_append_len(html, CONST_STR_LEN(" </tr>\n"));
col = 0;
continue;
} else {
col++;
}
g_string_append_printf(html, " <td class=\"left\">%s</td>\n", g_array_index(list, gchar*, i));
}
if (col) {
for (i = 5 - col; i; i--)
g_string_append_len(html, CONST_STR_LEN(" <td></td>\n"));
g_string_append_len(html, CONST_STR_LEN(" </tr>\n"));
}
g_string_append_len(html, CONST_STR_LEN(" </table>\n"));
g_array_free(list, TRUE);
}
/* list environment vars */
{
gchar **e;
gchar **env = g_listenv();
g_string_append_len(html, CONST_STR_LEN(" <div class=\"title\"><strong>Process environment</strong></div>\n"));
g_string_append_len(html, CONST_STR_LEN(" <table cellspacing=\"0\">\n"));
for (e = env; *e; e++) {
g_string_append_printf(html, " <tr><td class=\"left\">%s</td><td class=\"left\">%s</td></tr>\n", *e, getenv(*e));
}
g_string_append_len(html, CONST_STR_LEN(" </table>\n"));
g_strfreev(env);
}
g_string_append_len(html, CONST_STR_LEN(
" </body>\n"
"</html>\n"
));
li_chunkqueue_append_string(vr->out, html);
li_http_header_overwrite(vr->response.headers, CONST_STR_LEN("Content-Type"), CONST_STR_LEN("text/html"));
vr->response.http_status = 200;
li_vrequest_handle_direct(vr);
return LI_HANDLER_GO_ON;
}
static const liPluginOption options[] = {
{ "status.css", LI_VALUE_STRING, NULL, NULL, NULL },
{ NULL, 0, NULL, NULL, NULL }
};
static const liPluginAction actions[] = {
{ "status.info", status_info_create },
{ NULL, NULL }
};
static const liPluginSetup setups[] = {
{ NULL, NULL }
};
static void plugin_status_init(liServer *srv, liPlugin *p) {
UNUSED(srv);
p->options = options;
p->actions = actions;
p->setups = setups;
}
gboolean mod_status_init(liModules *mods, liModule *mod) {
UNUSED(mod);
MODULE_VERSION_CHECK(mods);
mod->config = li_plugin_register(mods->main, "mod_status", plugin_status_init);
return mod->config != NULL;
}
gboolean mod_status_free(liModules *mods, liModule *mod) {
UNUSED(mods); UNUSED(mod);
if (mod->config)
li_plugin_free(mods->main, mod->config);
return TRUE;
}