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diff --git a/lib/common/output_html.c b/lib/common/output_html.c
index 965f607272..b27b345f18 100644
--- a/lib/common/output_html.c
+++ b/lib/common/output_html.c
@@ -1,413 +1,420 @@
/*
* Copyright 2019 the Pacemaker project contributors
*
* The version control history for this file may have further details.
*
* This source code is licensed under the GNU Lesser General Public License
* version 2.1 or later (LGPLv2.1+) WITHOUT ANY WARRANTY.
*/
#ifndef _GNU_SOURCE
# define _GNU_SOURCE
#endif
#include <ctype.h>
#include <libxml/HTMLtree.h>
#include <stdarg.h>
#include <stdlib.h>
#include <stdio.h>
#include <crm/crm.h>
#include <crm/common/output.h>
#include <crm/common/xml.h>
static const char *stylesheet_default =
".bold { font-weight: bold }\n"
".maint { color: blue }\n"
".offline { color: red }\n"
".online { color: green }\n"
".rsc-failed { color: red }\n"
".rsc-failure-ignored { color: yellow }\n"
".rsc-managed { color: yellow }\n"
".rsc-multiple { color: orange }\n"
".rsc-ok { color: green }\n"
".standby { color: orange }\n"
".warning { color: red, font-weight: bold }";
static gboolean cgi_output = FALSE;
static char *stylesheet_link = NULL;
static char *title = NULL;
GOptionEntry pcmk__html_output_entries[] = {
{ "html-cgi", 0, 0, G_OPTION_ARG_NONE, &cgi_output,
"Add CGI headers (requires --output-as=html)",
NULL },
{ "html-stylesheet", 0, 0, G_OPTION_ARG_STRING, &stylesheet_link,
"Link to an external stylesheet (requires --output-as=html)",
"URI" },
{ "html-title", 0, 0, G_OPTION_ARG_STRING, &title,
"Specify a page title (requires --output-as=html)",
"TITLE" },
{ NULL }
};
typedef struct private_data_s {
xmlNode *root;
GQueue *parent_q;
GSList *errors;
} private_data_t;
static void
html_free_priv(pcmk__output_t *out) {
private_data_t *priv = out->priv;
if (priv == NULL) {
return;
}
xmlFreeNode(priv->root);
g_queue_free(priv->parent_q);
g_slist_free(priv->errors);
free(priv);
}
static bool
html_init(pcmk__output_t *out) {
private_data_t *priv = NULL;
/* If html_init was previously called on this output struct, just return. */
if (out->priv != NULL) {
return true;
} else {
out->priv = calloc(1, sizeof(private_data_t));
if (out->priv == NULL) {
return false;
}
priv = out->priv;
}
priv->parent_q = g_queue_new();
priv->root = create_xml_node(NULL, "html");
xmlCreateIntSubset(priv->root->doc, (pcmkXmlStr) "html", NULL, NULL);
xmlSetProp(priv->root, (pcmkXmlStr) "lang", (pcmkXmlStr) "en");
g_queue_push_tail(priv->parent_q, priv->root);
priv->errors = NULL;
pcmk__output_xml_create_parent(out, "body");
return true;
}
static void
add_error_node(gpointer data, gpointer user_data) {
char *str = (char *) data;
pcmk__output_t *out = (pcmk__output_t *) user_data;
out->list_item(out, NULL, "%s", str);
}
static void
html_finish(pcmk__output_t *out, crm_exit_t exit_status, bool print, void **copy_dest) {
private_data_t *priv = out->priv;
htmlNodePtr head_node = NULL;
htmlNodePtr charset_node = NULL;
/* If root is NULL, html_init failed and we are being called from pcmk__output_free
* in the pcmk__output_new path.
*/
if (priv == NULL || priv->root == NULL) {
return;
}
if (cgi_output && print) {
fprintf(out->dest, "Content-Type: text/html\n\n");
}
/* Add the head node last - it's not needed earlier because it doesn't contain
* anything else that the user could add, and we want it done last to pick up
* any options that may have been given.
*/
head_node = xmlNewNode(NULL, (pcmkXmlStr) "head");
if (title != NULL ) {
pcmk_create_xml_text_node(head_node, "title", title);
} else if (out->request != NULL) {
pcmk_create_xml_text_node(head_node, "title", out->request);
}
charset_node = create_xml_node(head_node, "meta");
xmlSetProp(charset_node, (pcmkXmlStr) "charset", (pcmkXmlStr) "utf-8");
/* Stylesheets are included two different ways. The first is via a built-in
* default (see the stylesheet_default const above). The second is via the
* html-stylesheet option, and this should obviously be a link to a
* stylesheet. The second can override the first. At least one should be
* given.
*/
pcmk_create_xml_text_node(head_node, "style", stylesheet_default);
if (stylesheet_link != NULL) {
htmlNodePtr link_node = create_xml_node(head_node, "link");
xmlSetProp(link_node, (pcmkXmlStr) "rel", (pcmkXmlStr) "stylesheet");
xmlSetProp(link_node, (pcmkXmlStr) "href", (pcmkXmlStr) stylesheet_link);
}
xmlAddPrevSibling(priv->root->children, head_node);
if (g_slist_length(priv->errors) > 0) {
out->begin_list(out, "Errors", NULL, NULL);
g_slist_foreach(priv->errors, add_error_node, (gpointer) out);
out->end_list(out);
}
if (print) {
htmlDocDump(out->dest, priv->root->doc);
}
if (copy_dest != NULL) {
*copy_dest = copy_xml(priv->root);
}
}
static void
html_reset(pcmk__output_t *out) {
private_data_t *priv = out->priv;
CRM_ASSERT(priv != NULL);
htmlDocDump(out->dest, priv->root->doc);
html_free_priv(out);
html_init(out);
}
static void
html_subprocess_output(pcmk__output_t *out, int exit_status,
const char *proc_stdout, const char *proc_stderr) {
char *rc_buf = NULL;
private_data_t *priv = out->priv;
CRM_ASSERT(priv != NULL);
rc_buf = crm_strdup_printf("Return code: %d", exit_status);
pcmk__output_create_xml_text_node(out, "h2", "Command Output");
pcmk__output_create_html_node(out, "div", NULL, NULL, rc_buf);
if (proc_stdout != NULL) {
pcmk__output_create_html_node(out, "div", NULL, NULL, "Stdout");
pcmk__output_create_html_node(out, "div", NULL, "output", proc_stdout);
}
if (proc_stderr != NULL) {
pcmk__output_create_html_node(out, "div", NULL, NULL, "Stderr");
pcmk__output_create_html_node(out, "div", NULL, "output", proc_stderr);
}
free(rc_buf);
}
static void
html_version(pcmk__output_t *out, bool extended) {
private_data_t *priv = out->priv;
CRM_ASSERT(priv != NULL);
pcmk__output_create_xml_text_node(out, "h2", "Version Information");
pcmk__output_create_html_node(out, "div", NULL, NULL, "Program: Pacemaker");
pcmk__output_create_html_node(out, "div", NULL, NULL, crm_strdup_printf("Version: %s", PACEMAKER_VERSION));
pcmk__output_create_html_node(out, "div", NULL, NULL, "Author: Andrew Beekhof");
pcmk__output_create_html_node(out, "div", NULL, NULL, crm_strdup_printf("Build: %s", BUILD_VERSION));
pcmk__output_create_html_node(out, "div", NULL, NULL, crm_strdup_printf("Features: %s", CRM_FEATURES));
}
G_GNUC_PRINTF(2, 3)
static void
html_err(pcmk__output_t *out, const char *format, ...) {
private_data_t *priv = out->priv;
int len = 0;
char *buf = NULL;
va_list ap;
CRM_ASSERT(priv != NULL);
va_start(ap, format);
len = vasprintf(&buf, format, ap);
CRM_ASSERT(len >= 0);
va_end(ap);
priv->errors = g_slist_append(priv->errors, buf);
}
G_GNUC_PRINTF(2, 3)
static void
html_info(pcmk__output_t *out, const char *format, ...) {
/* This function intentially left blank */
}
static void
html_output_xml(pcmk__output_t *out, const char *name, const char *buf) {
htmlNodePtr node = NULL;
private_data_t *priv = out->priv;
CRM_ASSERT(priv != NULL);
node = pcmk__output_create_html_node(out, "pre", NULL, NULL, buf);
xmlSetProp(node, (pcmkXmlStr) "lang", (pcmkXmlStr) "xml");
}
G_GNUC_PRINTF(4, 5)
static void
html_begin_list(pcmk__output_t *out, const char *singular_noun,
const char *plural_noun, const char *format, ...) {
+ int q_len = 0;
private_data_t *priv = out->priv;
xmlNodePtr node = NULL;
CRM_ASSERT(priv != NULL);
/* If we are already in a list (the queue depth is always at least
* one because of the <html> element), first create a <li> element
* to hold the <h2> and the new list.
*/
- if (g_queue_get_length(priv->parent_q) > 2) {
+ q_len = g_queue_get_length(priv->parent_q);
+ if (q_len > 2) {
pcmk__output_xml_create_parent(out, "li");
}
if (format != NULL) {
va_list ap;
char *buf = NULL;
int len;
va_start(ap, format);
len = vasprintf(&buf, format, ap);
va_end(ap);
CRM_ASSERT(len >= 0);
- pcmk__output_create_xml_text_node(out, "h2", buf);
+ if (q_len > 2) {
+ pcmk__output_create_xml_text_node(out, "h3", buf);
+ } else {
+ pcmk__output_create_xml_text_node(out, "h2", buf);
+ }
+
free(buf);
}
node = pcmk__output_xml_create_parent(out, "ul");
g_queue_push_tail(priv->parent_q, node);
}
G_GNUC_PRINTF(3, 4)
static void
html_list_item(pcmk__output_t *out, const char *name, const char *format, ...) {
private_data_t *priv = out->priv;
htmlNodePtr item_node = NULL;
va_list ap;
char *buf = NULL;
int len;
CRM_ASSERT(priv != NULL);
va_start(ap, format);
len = vasprintf(&buf, format, ap);
CRM_ASSERT(len >= 0);
va_end(ap);
item_node = pcmk__output_create_xml_text_node(out, "li", buf);
free(buf);
if (name != NULL) {
xmlSetProp(item_node, (pcmkXmlStr) "class", (pcmkXmlStr) name);
}
}
static void
html_increment_list(pcmk__output_t *out) {
/* This function intentially left blank */
}
static void
html_end_list(pcmk__output_t *out) {
private_data_t *priv = out->priv;
CRM_ASSERT(priv != NULL);
/* Remove the <ul> tag. */
g_queue_pop_tail(priv->parent_q);
pcmk__output_xml_pop_parent(out);
/* Remove the <li> created for nested lists. */
if (g_queue_get_length(priv->parent_q) > 2) {
pcmk__output_xml_pop_parent(out);
}
}
pcmk__output_t *
pcmk__mk_html_output(char **argv) {
pcmk__output_t *retval = calloc(1, sizeof(pcmk__output_t));
if (retval == NULL) {
return NULL;
}
retval->fmt_name = "html";
retval->request = g_strjoinv(" ", argv);
retval->supports_quiet = false;
retval->init = html_init;
retval->free_priv = html_free_priv;
retval->finish = html_finish;
retval->reset = html_reset;
retval->register_message = pcmk__register_message;
retval->message = pcmk__call_message;
retval->subprocess_output = html_subprocess_output;
retval->version = html_version;
retval->info = html_info;
retval->err = html_err;
retval->output_xml = html_output_xml;
retval->begin_list = html_begin_list;
retval->list_item = html_list_item;
retval->increment_list = html_increment_list;
retval->end_list = html_end_list;
return retval;
}
xmlNodePtr
pcmk__output_create_html_node(pcmk__output_t *out, const char *element_name, const char *id,
const char *class_name, const char *text) {
htmlNodePtr node = pcmk__output_create_xml_text_node(out, element_name, text);
if (class_name != NULL) {
xmlSetProp(node, (pcmkXmlStr) "class", (pcmkXmlStr) class_name);
}
if (id != NULL) {
xmlSetProp(node, (pcmkXmlStr) "id", (pcmkXmlStr) id);
}
return node;
}
void
pcmk__html_add_header(xmlNodePtr parent, const char *name, ...) {
htmlNodePtr head_node;
htmlNodePtr header_node;
va_list ap;
head_node = find_xml_node(parent, "head", TRUE);
va_start(ap, name);
header_node = create_xml_node(head_node, name);
while (1) {
char *key = va_arg(ap, char *);
char *value;
if (key == NULL) {
break;
}
value = va_arg(ap, char *);
xmlSetProp(header_node, (pcmkXmlStr) key, (pcmkXmlStr) value);
}
va_end(ap);
}

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