From 9f6ce80da3baaa33848293fb293e51500095f13c Mon Sep 17 00:00:00 2001
From: Miciah Dashiel Butler Masters <miciah@myrealbox.com>
Date: Thu, 30 Aug 2007 23:36:20 +0000
Subject: [PATCH] Add config/domain.[ch] (doh!)

---
 src/config/domain.c | 112 ++++++++++++++++++++++++++++++++++++++++++++
 src/config/domain.h |  29 ++++++++++++
 2 files changed, 141 insertions(+)
 create mode 100644 src/config/domain.c
 create mode 100644 src/config/domain.h

diff --git a/src/config/domain.c b/src/config/domain.c
new file mode 100644
index 000000000..897cc5f1c
--- /dev/null
+++ b/src/config/domain.c
@@ -0,0 +1,112 @@
+/* Domain-specific options infrastructure */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <string.h>
+
+#include "elinks.h"
+
+#include "config/domain.h"
+#include "config/options.h"
+#include "protocol/uri.h"
+#include "session/location.h"
+#include "session/session.h"
+#include "util/lists.h"
+#include "viewer/text/vs.h"
+
+
+INIT_LIST_OF(struct domain_tree, domain_trees);
+
+
+/* Look for the option with the given name in all domain shadow-trees that
+ * match the given domain-name.  Return the option from the the shadow tree
+ * that best matches the given domain name. */
+static struct option *
+get_domain_option(unsigned char *domain_name, int domain_len,
+                  unsigned char *name)
+{
+	struct option *opt, *longest_match_opt = NULL;
+	struct domain_tree *longest_match = NULL;
+	struct domain_tree *domain;
+
+	assert(domain_name);
+	assert(*domain_name);
+
+	foreach (domain, domain_trees)
+		if ((!longest_match || domain->len > longest_match->len)
+		    && is_in_domain(domain->name, domain_name, domain_len)
+		    && (opt = get_opt_rec_real(domain->tree, name))) {
+			longest_match = domain;
+			longest_match_opt = opt;
+		}
+
+	return longest_match_opt;
+}
+
+struct option *
+get_domain_option_from_session(unsigned char *name, struct session *ses)
+{
+	struct uri *uri;
+
+	assert(ses);
+	assert(name);
+
+	if (!have_location(ses))
+		return NULL;
+
+	uri = cur_loc(ses)->vs.uri;
+	if (!uri->host || !uri->hostlen)
+		return NULL;
+
+	return get_domain_option(uri->host, uri->hostlen, name);
+}
+
+/* Return the shadow shadow tree for the given domain name, and
+ * if the domain does not yet have a shadow tree, create it. */
+struct option *
+get_domain_tree(unsigned char *domain_name)
+{
+	struct domain_tree *domain;
+	int domain_len;
+
+	assert(domain_name);
+	assert(*domain_name);
+
+	foreach (domain, domain_trees)
+		if (!strcasecmp(domain->name, domain_name))
+			return domain->tree;
+
+	domain_len = strlen(domain_name);
+	/* One byte is reserved for domain in struct domain_tree. */
+	domain = mem_alloc(sizeof(*domain) + domain_len);
+	if (!domain) return NULL;
+
+	domain->tree = copy_option(config_options, CO_SHALLOW
+	                                            | CO_NO_LISTBOX_ITEM);
+	if (!domain->tree) {
+		mem_free(domain);
+		return NULL;
+	}
+
+	memcpy(domain->name, domain_name, domain_len + 1);
+	domain->len = domain_len;
+
+	add_to_list(domain_trees, domain);
+
+	return domain->tree;
+}
+
+void
+done_domain_trees(void)
+{
+	struct domain_tree *domain, *next;
+
+	foreachsafe (domain, next, domain_trees) {
+		delete_option(domain->tree);
+		domain->tree = NULL;
+		del_from_list(domain);
+		mem_free(domain);
+	}
+}
diff --git a/src/config/domain.h b/src/config/domain.h
new file mode 100644
index 000000000..726201afd
--- /dev/null
+++ b/src/config/domain.h
@@ -0,0 +1,29 @@
+#ifndef EL__CONFIG_DOMAIN_H
+#define EL__CONFIG_DOMAIN_H
+
+#include "config/options.h"
+#include "util/lists.h"
+
+struct session;
+
+
+struct domain_tree {
+	LIST_HEAD(struct domain_tree);
+
+	struct option *tree;
+
+	int len;
+
+	unsigned char name[1]; /* Must be at end of struct. */
+};
+
+extern LIST_OF(struct domain_tree) domain_trees;
+
+struct option *get_domain_tree(unsigned char *);
+
+struct option *get_domain_option_from_session(unsigned char *,
+                                              struct session *);
+
+void done_domain_trees(void);
+
+#endif