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diff --git a/lib/common/output_html.c b/lib/common/output_html.c
index dc254a5b5f..b6f9fd7e90 100644
--- a/lib/common/output_html.c
+++ b/lib/common/output_html.c
@@ -1,519 +1,518 @@
/*
* Copyright 2019-2024 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.
*/
#include <crm_internal.h>
#include <ctype.h>
#include <libxml/HTMLtree.h>
#include <stdarg.h>
#include <stdlib.h>
#include <stdio.h>
#include <crm/common/cmdline_internal.h>
#include <crm/common/xml.h>
static const char *stylesheet_default =
"." PCMK__VALUE_BOLD " { font-weight: bold }\n"
"." PCMK_VALUE_ONLINE " { color: green }\n"
"." PCMK_VALUE_OFFLINE " { color: red }\n"
"." PCMK__VALUE_MAINT " { color: blue }\n"
"." PCMK_VALUE_STANDBY " { color: blue }\n"
"." PCMK__VALUE_HEALTH_RED " { color: red }\n"
"." PCMK__VALUE_HEALTH_YELLOW " { color: GoldenRod }\n"
"." PCMK__VALUE_RSC_FAILED " { color: red }\n"
"." PCMK__VALUE_RSC_FAILURE_IGNORED " { color: DarkGreen }\n"
"." PCMK__VALUE_RSC_MANAGED " { color: blue }\n"
"." PCMK__VALUE_RSC_MULTIPLE " { color: orange }\n"
"." PCMK__VALUE_RSC_OK " { color: green }\n"
"." PCMK__VALUE_WARNING " { color: red; font-weight: bold }";
static gboolean cgi_output = FALSE;
static char *stylesheet_link = NULL;
static char *title = NULL;
static GSList *extra_headers = 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 }
};
/* The first several elements of this struct must be the same as the first
* several elements of private_data_s in lib/common/output_xml.c. This
* struct gets passed to a bunch of the pcmk__output_xml_* functions which
* assume an XML private_data_s. Keeping them laid out the same means this
* still works.
*/
typedef struct private_data_s {
/* Begin members that must match the XML version */
xmlNode *root;
GQueue *parent_q;
GSList *errors;
/* End members that must match the XML version */
} private_data_t;
static void
html_free_priv(pcmk__output_t *out) {
private_data_t *priv = NULL;
if (out == NULL || out->priv == NULL) {
return;
}
priv = out->priv;
free_xml(priv->root);
/* The elements of parent_q are xmlNodes that are a part of the
* priv->root document, so the above line already frees them. Don't
* call g_queue_free_full here.
*/
g_queue_free(priv->parent_q);
g_slist_free_full(priv->errors, free);
free(priv);
out->priv = NULL;
}
static bool
html_init(pcmk__output_t *out) {
private_data_t *priv = NULL;
CRM_ASSERT(out != 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 = pcmk__xe_create(NULL, "html");
xmlCreateIntSubset(priv->root->doc, (pcmkXmlStr) "html", NULL, NULL);
crm_xml_add(priv->root, PCMK_XA_LANG, PCMK__VALUE_EN);
g_queue_push_tail(priv->parent_q, priv->root);
priv->errors = NULL;
pcmk__output_xml_create_parent(out, "body", NULL);
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 = NULL;
htmlNodePtr head_node = NULL;
htmlNodePtr charset_node = NULL;
xmlNode *child_node = NULL;
CRM_ASSERT(out != NULL);
priv = out->priv;
/* 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 = xmlNewDocRawNode(NULL, NULL, (pcmkXmlStr) "head", NULL);
+ head_node = pcmk__xe_create(priv->root, "head");
+ xmlAddPrevSibling(priv->root->children, head_node);
if (title != NULL ) {
child_node = pcmk__xe_create(head_node, "title");
pcmk__xe_set_content(child_node, "%s", title);
} else if (out->request != NULL) {
child_node = pcmk__xe_create(head_node, "title");
pcmk__xe_set_content(child_node, "%s", out->request);
}
charset_node = pcmk__xe_create(head_node, PCMK__XE_META);
crm_xml_add(charset_node, "charset", "utf-8");
/* Add any extra header nodes the caller might have created. */
- for (int i = 0; i < g_slist_length(extra_headers); i++) {
- xmlAddChild(head_node, xmlCopyNode(g_slist_nth_data(extra_headers, i), 1));
+ for (GSList *iter = extra_headers; iter != NULL; iter = iter->next) {
+ pcmk__xml_copy(head_node, (xmlNode *) iter->data);
}
/* 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.
*/
child_node = pcmk__xe_create(head_node, "style");
pcmk__xe_set_content(child_node, "%s", stylesheet_default);
if (stylesheet_link != NULL) {
htmlNodePtr link_node = pcmk__xe_create(head_node, "link");
pcmk__xe_set_props(link_node, "rel", "stylesheet",
"href", stylesheet_link,
NULL);
}
- 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 = pcmk__xml_copy(NULL, priv->root);
}
g_slist_free_full(extra_headers, (GDestroyNotify) free_xml);
extra_headers = NULL;
}
static void
html_reset(pcmk__output_t *out) {
CRM_ASSERT(out != NULL);
out->dest = freopen(NULL, "w", out->dest);
CRM_ASSERT(out->dest != NULL);
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;
CRM_ASSERT(out != 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, PCMK__XE_DIV, NULL, NULL, rc_buf);
if (proc_stdout != NULL) {
pcmk__output_create_html_node(out, PCMK__XE_DIV, NULL, NULL, "Stdout");
pcmk__output_create_html_node(out, PCMK__XE_DIV, NULL,
PCMK__VALUE_OUTPUT, proc_stdout);
}
if (proc_stderr != NULL) {
pcmk__output_create_html_node(out, PCMK__XE_DIV, NULL, NULL, "Stderr");
pcmk__output_create_html_node(out, PCMK__XE_DIV, NULL,
PCMK__VALUE_OUTPUT, proc_stderr);
}
free(rc_buf);
}
static void
html_version(pcmk__output_t *out, bool extended) {
CRM_ASSERT(out != NULL);
pcmk__output_create_xml_text_node(out, "h2", "Version Information");
pcmk__output_create_html_node(out, PCMK__XE_DIV, NULL, NULL,
"Program: Pacemaker");
pcmk__output_create_html_node(out, PCMK__XE_DIV, NULL, NULL,
"Version: " PACEMAKER_VERSION);
pcmk__output_create_html_node(out, PCMK__XE_DIV, NULL, NULL,
"Author: Andrew Beekhof and "
"the Pacemaker project contributors");
pcmk__output_create_html_node(out, PCMK__XE_DIV, NULL, NULL,
"Build: " BUILD_VERSION);
pcmk__output_create_html_node(out, PCMK__XE_DIV, NULL, NULL,
"Features: " CRM_FEATURES);
}
G_GNUC_PRINTF(2, 3)
static void
html_err(pcmk__output_t *out, const char *format, ...) {
private_data_t *priv = NULL;
int len = 0;
char *buf = NULL;
va_list ap;
CRM_ASSERT(out != NULL && out->priv != NULL);
priv = out->priv;
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 int
html_info(pcmk__output_t *out, const char *format, ...) {
return pcmk_rc_no_output;
}
static void
html_output_xml(pcmk__output_t *out, const char *name, const char *buf) {
htmlNodePtr node = NULL;
CRM_ASSERT(out != NULL);
node = pcmk__output_create_html_node(out, "pre", NULL, NULL, buf);
crm_xml_add(node, PCMK_XA_LANG, "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 = NULL;
xmlNodePtr node = NULL;
CRM_ASSERT(out != NULL && out->priv != NULL);
priv = out->priv;
/* 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.
*/
q_len = g_queue_get_length(priv->parent_q);
if (q_len > 2) {
pcmk__output_xml_create_parent(out, "li", NULL);
}
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);
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", NULL);
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, ...) {
htmlNodePtr item_node = NULL;
va_list ap;
char *buf = NULL;
int len;
CRM_ASSERT(out != 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) {
crm_xml_add(item_node, PCMK_XA_CLASS, 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 = NULL;
CRM_ASSERT(out != NULL && out->priv != NULL);
priv = out->priv;
/* Remove the <ul> tag, but do not free this result - it's still
* part of the document.
*/
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);
}
}
static bool
html_is_quiet(pcmk__output_t *out) {
return false;
}
static void
html_spacer(pcmk__output_t *out) {
CRM_ASSERT(out != NULL);
pcmk__output_create_xml_node(out, "br", NULL);
}
static void
html_progress(pcmk__output_t *out, bool end) {
/* This function intentially left blank */
}
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 = pcmk__quote_cmdline(argv);
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->transient = 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;
retval->is_quiet = html_is_quiet;
retval->spacer = html_spacer;
retval->progress = html_progress;
retval->prompt = pcmk__text_prompt;
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 = NULL;
CRM_ASSERT(out != NULL);
CRM_CHECK(pcmk__str_eq(out->fmt_name, "html", pcmk__str_none), return NULL);
node = pcmk__output_create_xml_text_node(out, element_name, text);
if (class_name != NULL) {
crm_xml_add(node, PCMK_XA_CLASS, class_name);
}
if (id != NULL) {
crm_xml_add(node, PCMK_XA_ID, id);
}
return node;
}
/*!
* \internal
* \brief Create a new HTML element under a given parent with ID and class
*
* \param[in,out] parent XML element that will be the new element's parent
* (\c NULL to create a new XML document with the new
* node as root)
* \param[in] name Name of new element
* \param[in] id CSS ID of new element (can be \c NULL)
* \param[in] class CSS class of new element (can be \c NULL)
*
* \return Newly created XML element (guaranteed not to be \c NULL)
*/
xmlNode *
pcmk__html_create(xmlNode *parent, const char *name, const char *id,
const char *class)
{
xmlNode *node = pcmk__xe_create(parent, name);
pcmk__xe_set_props(node,
PCMK_XA_CLASS, class,
PCMK_XA_ID, id,
NULL);
return node;
}
void
pcmk__html_add_header(const char *name, ...) {
htmlNodePtr header_node;
va_list ap;
va_start(ap, name);
- header_node = xmlNewDocRawNode(NULL, NULL, (pcmkXmlStr) name, NULL);
+ header_node = pcmk__xe_create(NULL, name);
while (1) {
char *key = va_arg(ap, char *);
char *value;
if (key == NULL) {
break;
}
value = va_arg(ap, char *);
crm_xml_add(header_node, key, value);
}
extra_headers = g_slist_append(extra_headers, header_node);
va_end(ap);
}

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