content/handlers/javascript/duktape/dukky.c

Bug Summary

File:	content/handlers/javascript/duktape/dukky.c
Warning:	line 1673, column 3 Use of memory after it is freed
Annotated Source Code

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clang -cc1 -cc1 -triple x86_64-pc-linux-gnu -analyze -disable-free -clear-ast-before-backend -disable-llvm-verifier -discard-value-names -main-file-name dukky.c -analyzer-store=region -analyzer-opt-analyze-nested-blocks -analyzer-checker=core -analyzer-checker=apiModeling -analyzer-checker=unix -analyzer-checker=deadcode -analyzer-checker=security.insecureAPI.UncheckedReturn -analyzer-checker=security.insecureAPI.getpw -analyzer-checker=security.insecureAPI.gets -analyzer-checker=security.insecureAPI.mktemp -analyzer-checker=security.insecureAPI.mkstemp -analyzer-checker=security.insecureAPI.vfork -analyzer-checker=nullability.NullPassedToNonnull -analyzer-checker=nullability.NullReturnedFromNonnull -analyzer-output plist -w -setup-static-analyzer -mrelocation-model pic -pic-level 2 -pic-is-pie -mframe-pointer=none -fmath-errno -ffp-contract=on -fno-rounding-math -mconstructor-aliases -funwind-tables=2 -target-cpu x86-64 -tune-cpu generic -debugger-tuning=gdb -fcoverage-compilation-dir=/var/lib/jenkins/workspace/scan-build-netsurf -resource-dir /usr/lib/llvm-14/lib/clang/14.0.6 -I . -I include -I build/Linux-gtk2 -I frontends -I content/handlers -D WITH_JPEG -U WITH_PDF_EXPORT -D LIBICONV_PLUG -I /var/lib/jenkins/artifacts-x86_64-linux-gnu/include -I /var/lib/jenkins/artifacts-x86_64-linux-gnu/include -I /var/lib/jenkins/artifacts-x86_64-linux-gnu/include -I /usr/include/x86_64-linux-gnu -D WITH_CURL -D WITH_OPENSSL -I /var/lib/jenkins/artifacts-x86_64-linux-gnu/include -D UTF8PROC_EXPORTS -D WITH_UTF8PROC -D WITH_WEBP -I /usr/include/libpng16 -D WITH_PNG -I /var/lib/jenkins/artifacts-x86_64-linux-gnu/include/ -D WITH_BMP -I /var/lib/jenkins/artifacts-x86_64-linux-gnu/include -D WITH_GIF -I /var/lib/jenkins/artifacts-x86_64-linux-gnu/include -D WITH_NS_SVG -I /var/lib/jenkins/artifacts-x86_64-linux-gnu/include -D WITH_NSSPRITE -I /var/lib/jenkins/artifacts-x86_64-linux-gnu/include -D WITH_NSPSL -I /var/lib/jenkins/artifacts-x86_64-linux-gnu/include -D WITH_NSLOG -D NETSURF_UA_FORMAT_STRING="Mozilla/5.0 (%s) NetSurf/%d.%d" -D NETSURF_HOMEPAGE="about:welcome" -D NETSURF_LOG_LEVEL=VERBOSE -D NETSURF_BUILTIN_LOG_FILTER="(level:WARNING || cat:jserrors)" -D NETSURF_BUILTIN_VERBOSE_FILTER="(level:VERBOSE || cat:jserrors)" -D STMTEXPR=1 -I /usr/include/librsvg-2.0 -I /usr/include/glib-2.0 -I /usr/lib/x86_64-linux-gnu/glib-2.0/include -I /usr/include/libmount -I /usr/include/blkid -I /usr/include/gdk-pixbuf-2.0 -I /usr/include/libpng16 -I /usr/include/x86_64-linux-gnu -I /usr/include/cairo -I /usr/include/pixman-1 -I /usr/include/freetype2 -D WITH_RSVG -I /usr/include/gtk-2.0 -I /usr/lib/x86_64-linux-gnu/gtk-2.0/include -I /usr/include/pango-1.0 -I /usr/include/glib-2.0 -I /usr/lib/x86_64-linux-gnu/glib-2.0/include -I /usr/include/harfbuzz -I /usr/include/freetype2 -I /usr/include/libpng16 -I /usr/include/libmount -I /usr/include/blkid -I /usr/include/fribidi -I /usr/include/cairo -I /usr/include/pixman-1 -I /usr/include/gdk-pixbuf-2.0 -I /usr/include/x86_64-linux-gnu -I /usr/include/atk-1.0 -I /usr/include/glib-2.0 -I /usr/lib/x86_64-linux-gnu/glib-2.0/include -I /usr/include/glib-2.0 -I /usr/lib/x86_64-linux-gnu/glib-2.0/include -D gtk -D nsgtk -D G_DISABLE_SINGLE_INCLUDES -D G_DISABLE_DEPRECATED -D GTK_DISABLE_SINGLE_INCLUDES -D GTK_MULTIHEAD_SAFE -D PANGO_DISABLE_DEPRECATED -D GTK_DISABLE_DEPRECATED -D _XOPEN_SOURCE=700 -D _POSIX_C_SOURCE=200809L -D _BSD_SOURCE -D _DEFAULT_SOURCE -D _NETBSD_SOURCE -D GTK_RESPATH="/var/lib/jenkins/artifacts-x86_64-linux-gnu/share/netsurf/:./frontends/gtk/res/" -D WITH_GRESOURCE -D DUK_OPT_HAVE_CUSTOM_H -internal-isystem /usr/lib/llvm-14/lib/clang/14.0.6/include -internal-isystem /usr/local/include -internal-isystem /usr/bin/../lib/gcc/x86_64-linux-gnu/12/../../../../x86_64-linux-gnu/include -internal-externc-isystem /usr/include/x86_64-linux-gnu -internal-externc-isystem /include -internal-externc-isystem /usr/include -O2 -Wwrite-strings -Wno-unused-parameter -Wno-unused-but-set-variable -std=c99 -fconst-strings -fdebug-compilation-dir=/var/lib/jenkins/workspace/scan-build-netsurf -ferror-limit 19 -fgnuc-version=4.2.1 -vectorize-loops -vectorize-slp -analyzer-display-progress -analyzer-output=html -faddrsig -D__GCC_HAVE_DWARF2_CFI_ASM=1 -o /var/lib/jenkins/workspace/scan-build-netsurf/clangScanBuildReports/2024-12-27-084849-3370695-1 -x c content/handlers/javascript/duktape/dukky.c
1/*
2 * Copyright 2012 Vincent Sanders <vince@netsurf-browser.org>
3 * Copyright 2015 Daniel Dilverstone <dsilvers@netsurf-browser.org>
4 * Copyright 2016 Michael Drake <tlsa@netsurf-browser.org>
5 * Copyright 2016 John-Mark Bell <jmb@netsurf-browser.org>
6 *
7 * This file is part of NetSurf, http://www.netsurf-browser.org/
8 *
9 * NetSurf is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; version 2 of the License.
12 *
13 * NetSurf is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
20 */
21 
22/**
23 * \file
24 * Duktapeish implementation of javascript engine functions.
25 */
26 
27#include <stdint.h>
28#include <nsutils/time.h>
29 
30#include "netsurf/inttypes.h"
31#include "utils/utils.h"
32#include "utils/nsoption.h"
33#include "utils/log.h"
34#include "utils/corestrings.h"
35#include "content/content.h"
36 
37#include "javascript/js.h"
38#include "javascript/content.h"
39 
40#include "duktape/binding.h"
41#include "duktape/generics.js.inc"
42#include "duktape/polyfill.js.inc"
43 
44#include "duktape.h"
45#include "dukky.h"
46 
47#include <dom/dom.h>
48 
49#define EVENT_MAGIC("\xFF\xFFNETSURF_DUKTAPE_" "EVENT_MAP") MAGIC(EVENT_MAP)("\xFF\xFFNETSURF_DUKTAPE_" "EVENT_MAP")
50#define HANDLER_LISTENER_MAGIC("\xFF\xFFNETSURF_DUKTAPE_" "HANDLER_LISTENER_MAP") MAGIC(HANDLER_LISTENER_MAP)("\xFF\xFFNETSURF_DUKTAPE_" "HANDLER_LISTENER_MAP")
51#define HANDLER_MAGIC("\xFF\xFFNETSURF_DUKTAPE_" "HANDLER_MAP") MAGIC(HANDLER_MAP)("\xFF\xFFNETSURF_DUKTAPE_" "HANDLER_MAP")
52#define EVENT_LISTENER_JS_MAGIC("\xFF\xFFNETSURF_DUKTAPE_" "EVENT_LISTENER_JS_MAP") MAGIC(EVENT_LISTENER_JS_MAP)("\xFF\xFFNETSURF_DUKTAPE_" "EVENT_LISTENER_JS_MAP")
53#define GENERICS_MAGIC("\xFF\xFFNETSURF_DUKTAPE_" "GENERICS_TABLE") MAGIC(GENERICS_TABLE)("\xFF\xFFNETSURF_DUKTAPE_" "GENERICS_TABLE")
54#define THREAD_MAP("\xFF\xFFNETSURF_DUKTAPE_" "THREAD_MAP") MAGIC(THREAD_MAP)("\xFF\xFFNETSURF_DUKTAPE_" "THREAD_MAP")
55 
56/**
57 * dukky javascript heap
58 */
59struct jsheap {
60	duk_context *ctx; /**< duktape base context */
61	duk_uarridx_t next_thread; /**< monotonic thread counter */
62	bool_Bool pending_destroy; /**< Whether this heap is pending destruction */
63	unsigned int live_threads; /**< number of live threads */
64	uint64_t exec_start_time;
65};
66 
67/**
68 * dukky javascript thread
69 */
70struct jsthread {
71	bool_Bool pending_destroy; /**< Whether this thread is pending destruction */
72	unsigned int in_use; /**< The number of times this thread is in use */
73	jsheap *heap; /**< The heap this thread belongs to */
74	duk_context *ctx; /**< The duktape thread context */
75	duk_uarridx_t thread_idx; /**< The thread number */
76};
77 
78static duk_ret_t dukky_populate_object(duk_context *ctx, void *udata)
79{
80	/* ... obj args protoname nargs */
81	int nargs = duk_get_int(ctx, -1);
82	duk_pop(ctx);
83	/* ... obj args protoname */
84	duk_get_global_string(ctx, PROTO_MAGIC("\xFF\xFFNETSURF_DUKTAPE_" "PROTOTYPES"));
85	/* .. obj args protoname prototab */
86	duk_dup(ctx, -2);
87	/* ... obj args protoname prototab protoname */
88	duk_get_prop(ctx, -2);
89	/* ... obj args protoname prototab {proto/undefined} */
90	if (duk_is_undefined(ctx, -1)) {
91		NSLOG(dukky, WARNING,do { if (NSLOG_LEVEL_WARNING >= NSLOG_LEVEL_VERBOSE) { static
 nslog_entry_context_t _nslog_ctx = { &__nslog_category_dukky
, NSLOG_LEVEL_WARNING, "content/handlers/javascript/duktape/dukky.c"
, sizeof("content/handlers/javascript/duktape/dukky.c") - 1, __PRETTY_FUNCTION__
, sizeof(__PRETTY_FUNCTION__) - 1, 93, }; nslog__log(&_nslog_ctx
, "Unable to find dukky prototype for `%s` - falling back to HTMLUnknownElement"
, duk_get_string(ctx, -3) + 2); } } while(0)
92		      "Unable to find dukky prototype for `%s` - falling back to HTMLUnknownElement",do { if (NSLOG_LEVEL_WARNING >= NSLOG_LEVEL_VERBOSE) { static
 nslog_entry_context_t _nslog_ctx = { &__nslog_category_dukky
, NSLOG_LEVEL_WARNING, "content/handlers/javascript/duktape/dukky.c"
, sizeof("content/handlers/javascript/duktape/dukky.c") - 1, __PRETTY_FUNCTION__
, sizeof(__PRETTY_FUNCTION__) - 1, 93, }; nslog__log(&_nslog_ctx
, "Unable to find dukky prototype for `%s` - falling back to HTMLUnknownElement"
, duk_get_string(ctx, -3) + 2); } } while(0)
93		      duk_get_string(ctx, -3) + 2 /* Skip the two unprintables */)do { if (NSLOG_LEVEL_WARNING >= NSLOG_LEVEL_VERBOSE) { static
 nslog_entry_context_t _nslog_ctx = { &__nslog_category_dukky
, NSLOG_LEVEL_WARNING, "content/handlers/javascript/duktape/dukky.c"
, sizeof("content/handlers/javascript/duktape/dukky.c") - 1, __PRETTY_FUNCTION__
, sizeof(__PRETTY_FUNCTION__) - 1, 93, }; nslog__log(&_nslog_ctx
, "Unable to find dukky prototype for `%s` - falling back to HTMLUnknownElement"
, duk_get_string(ctx, -3) + 2); } } while(0);
94		duk_pop(ctx);
95		duk_push_string(ctx, PROTO_NAME(HTMLUNKNOWNELEMENT)("\xFF\xFFNETSURF_DUKTAPE_" "PROTOTYPE_" "HTMLUNKNOWNELEMENT"
));
96		duk_get_prop(ctx, -2);
97	}
98	/* ... obj args protoname prototab proto */
99	duk_remove(ctx, -3);
100	/* ... obj args prototab proto */
101	duk_dup(ctx, -1);
102	/* ... obj args prototab proto proto */
103	duk_set_prototype(ctx, -(nargs+4));
104	/* ... obj[proto] args prototab proto */
105	duk_get_prop_string(ctx, -1, INIT_MAGIC("\xFF\xFFNETSURF_DUKTAPE_" "INIT"));
106	/* ... obj[proto] args prototab proto initfn */
107	duk_insert(ctx, -(nargs+4));
108	/* ... initfn obj[proto] args prototab proto */
109	duk_pop_2(ctx);
110	/* ... initfn obj[proto] args */
111	NSLOG(dukky, DEEPDEBUG, "Call the init function")do { if (NSLOG_LEVEL_DEEPDEBUG >= NSLOG_LEVEL_VERBOSE) { static
 nslog_entry_context_t _nslog_ctx = { &__nslog_category_dukky
, NSLOG_LEVEL_DEEPDEBUG, "content/handlers/javascript/duktape/dukky.c"
, sizeof("content/handlers/javascript/duktape/dukky.c") - 1, __PRETTY_FUNCTION__
, sizeof(__PRETTY_FUNCTION__) - 1, 111, }; nslog__log(&_nslog_ctx
, "Call the init function"); } } while(0);
112	duk_call(ctx, nargs + 1);
113	return 1; /* The object */
114}
115 
116duk_ret_t dukky_create_object(duk_context *ctx, const char *name, int args)
117{
118	duk_ret_t ret;
119	NSLOG(dukky, DEEPDEBUG, "name=%s nargs=%d", name + 2, args)do { if (NSLOG_LEVEL_DEEPDEBUG >= NSLOG_LEVEL_VERBOSE) { static
 nslog_entry_context_t _nslog_ctx = { &__nslog_category_dukky
, NSLOG_LEVEL_DEEPDEBUG, "content/handlers/javascript/duktape/dukky.c"
, sizeof("content/handlers/javascript/duktape/dukky.c") - 1, __PRETTY_FUNCTION__
, sizeof(__PRETTY_FUNCTION__) - 1, 119, }; nslog__log(&_nslog_ctx
, "name=%s nargs=%d", name + 2, args); } } while(0);
120	/* ... args */
121	duk_push_object(ctx);
122	/* ... args obj */
123	duk_push_object(ctx);
124	/* ... args obj handlers */
125	duk_put_prop_string(ctx, -2, HANDLER_LISTENER_MAGIC("\xFF\xFFNETSURF_DUKTAPE_" "HANDLER_LISTENER_MAP"));
126	/* ... args obj */
127	duk_push_object(ctx);
128	/* ... args obj handlers */
129	duk_put_prop_string(ctx, -2, HANDLER_MAGIC("\xFF\xFFNETSURF_DUKTAPE_" "HANDLER_MAP"));
130	/* ... args obj */
131	duk_insert(ctx, -(args+1));
132	/* ... obj args */
133	duk_push_string(ctx, name);
134	/* ... obj args name */
135	duk_push_int(ctx, args);
136	/* ... obj args name nargs */
137	if ((ret = duk_safe_call(ctx, dukky_populate_object, NULL((void*)0), args + 3, 1))
138	    != DUK_EXEC_SUCCESS0)
139		return ret;
140	NSLOG(dukky, DEEPDEBUG, "created")do { if (NSLOG_LEVEL_DEEPDEBUG >= NSLOG_LEVEL_VERBOSE) { static
 nslog_entry_context_t _nslog_ctx = { &__nslog_category_dukky
, NSLOG_LEVEL_DEEPDEBUG, "content/handlers/javascript/duktape/dukky.c"
, sizeof("content/handlers/javascript/duktape/dukky.c") - 1, __PRETTY_FUNCTION__
, sizeof(__PRETTY_FUNCTION__) - 1, 140, }; nslog__log(&_nslog_ctx
, "created"); } } while(0);
141	return DUK_EXEC_SUCCESS0;
142}
143 
144 
145 
146duk_bool_t
147dukky_push_node_stacked(duk_context *ctx)
148{
149	int top_at_fail = duk_get_top(ctx) - 2;
150	/* ... nodeptr klass */
151	duk_get_global_string(ctx, NODE_MAGIC("\xFF\xFFNETSURF_DUKTAPE_" "NODE_MAP"));
152	/* ... nodeptr klass nodes */
153	duk_dup(ctx, -3);
154	/* ... nodeptr klass nodes nodeptr */
155	duk_get_prop(ctx, -2);
156	/* ... nodeptr klass nodes node/undefined */
157	if (duk_is_undefined(ctx, -1)) {
158		/* ... nodeptr klass nodes undefined */
159		duk_pop(ctx);
160		/* ... nodeptr klass nodes */
161		duk_push_object(ctx);
162		/* ... nodeptr klass nodes obj */
163		duk_push_object(ctx);
164		/* ... nodeptr klass nodes obj handlers */
165		duk_put_prop_string(ctx, -2, HANDLER_LISTENER_MAGIC("\xFF\xFFNETSURF_DUKTAPE_" "HANDLER_LISTENER_MAP"));
166		/* ... nodeptr klass nodes obj */
167		duk_push_object(ctx);
168		/* ... nodeptr klass nodes obj handlers */
169		duk_put_prop_string(ctx, -2, HANDLER_MAGIC("\xFF\xFFNETSURF_DUKTAPE_" "HANDLER_MAP"));
170		/* ... nodeptr klass nodes obj */
171		duk_dup(ctx, -4);
172		/* ... nodeptr klass nodes obj nodeptr */
173		duk_dup(ctx, -4);
174		/* ... nodeptr klass nodes obj nodeptr klass */
175		duk_push_int(ctx, 1);
176		/* ... nodeptr klass nodes obj nodeptr klass 1 */
177		if (duk_safe_call(ctx, dukky_populate_object, NULL((void*)0), 4, 1)
178		    != DUK_EXEC_SUCCESS0) {
179			duk_set_top(ctx, top_at_fail);
180			NSLOG(dukky, ERROR, "Failed to populate object prototype")do { if (NSLOG_LEVEL_ERROR >= NSLOG_LEVEL_VERBOSE) { static
 nslog_entry_context_t _nslog_ctx = { &__nslog_category_dukky
, NSLOG_LEVEL_ERROR, "content/handlers/javascript/duktape/dukky.c"
, sizeof("content/handlers/javascript/duktape/dukky.c") - 1, __PRETTY_FUNCTION__
, sizeof(__PRETTY_FUNCTION__) - 1, 180, }; nslog__log(&_nslog_ctx
, "Failed to populate object prototype"); } } while(0);
181			return false0;
182		}
183		/* ... nodeptr klass nodes node */
184		duk_dup(ctx, -4);
185		/* ... nodeptr klass nodes node nodeptr */
186		duk_dup(ctx, -2);
187		/* ... nodeptr klass nodes node nodeptr node */
188		duk_put_prop(ctx, -4);
189		/* ... nodeptr klass nodes node */
190	}
191	/* ... nodeptr klass nodes node */
192	duk_insert(ctx, -4);
193	/* ... node nodeptr klass nodes */
194	duk_pop_3(ctx);
195	/* ... node */
196	if (NSLOG_COMPILED_MIN_LEVELNSLOG_LEVEL_VERBOSE <= NSLOG_LEVEL_DEEPDEBUG) {
197		duk_dup(ctx, -1);
198		const char * what = duk_safe_to_string(ctx, -1)duk_safe_to_lstring((ctx), (-1), ((void*)0));
199		NSLOG(dukky, DEEPDEBUG, "Created: %s", what)do { if (NSLOG_LEVEL_DEEPDEBUG >= NSLOG_LEVEL_VERBOSE) { static
 nslog_entry_context_t _nslog_ctx = { &__nslog_category_dukky
, NSLOG_LEVEL_DEEPDEBUG, "content/handlers/javascript/duktape/dukky.c"
, sizeof("content/handlers/javascript/duktape/dukky.c") - 1, __PRETTY_FUNCTION__
, sizeof(__PRETTY_FUNCTION__) - 1, 199, }; nslog__log(&_nslog_ctx
, "Created: %s", what); } } while(0);
200		duk_pop(ctx);
201	}
202	return true1;
203}
204 
205#define SET_HTML_CLASS(CLASS) \
206		*html_class = PROTO_NAME(HTML##CLASS##ELEMENT)("\xFF\xFFNETSURF_DUKTAPE_" "PROTOTYPE_" "HTML##CLASS##ELEMENT"
); \
207		*html_class_len = \
208				SLEN(PROTO_NAME(HTML))(sizeof((("\xFF\xFFNETSURF_DUKTAPE_" "PROTOTYPE_" "HTML"))) -
 1) + \
209				SLEN(#CLASS)(sizeof((#CLASS)) - 1) + \
210				SLEN("ELEMENT")(sizeof(("ELEMENT")) - 1);
211 
212static void dukky_html_element_class_from_tag_type(dom_html_element_type type,
213		const char **html_class, size_t *html_class_len)
214{
215	switch(type) {
216	case DOM_HTML_ELEMENT_TYPE_HTML:
217		SET_HTML_CLASS(HTML)
218		break;
219	case DOM_HTML_ELEMENT_TYPE_HEAD:
220		SET_HTML_CLASS(HEAD)
221		break;
222	case DOM_HTML_ELEMENT_TYPE_META:
223		SET_HTML_CLASS(META)
224		break;
225	case DOM_HTML_ELEMENT_TYPE_BASE:
226		SET_HTML_CLASS(BASE)
227		break;
228	case DOM_HTML_ELEMENT_TYPE_TITLE:
229		SET_HTML_CLASS(TITLE)
230		break;
231	case DOM_HTML_ELEMENT_TYPE_BODY:
232		SET_HTML_CLASS(BODY)
233		break;
234	case DOM_HTML_ELEMENT_TYPE_DIV:
235		SET_HTML_CLASS(DIV)
236		break;
237	case DOM_HTML_ELEMENT_TYPE_FORM:
238		SET_HTML_CLASS(FORM)
239		break;
240	case DOM_HTML_ELEMENT_TYPE_LINK:
241		SET_HTML_CLASS(LINK)
242		break;
243	case DOM_HTML_ELEMENT_TYPE_BUTTON:
244		SET_HTML_CLASS(BUTTON)
245		break;
246	case DOM_HTML_ELEMENT_TYPE_INPUT:
247		SET_HTML_CLASS(INPUT)
248		break;
249	case DOM_HTML_ELEMENT_TYPE_TEXTAREA:
250		SET_HTML_CLASS(TEXTAREA)
251		break;
252	case DOM_HTML_ELEMENT_TYPE_OPTGROUP:
253		SET_HTML_CLASS(OPTGROUP)
254		break;
255	case DOM_HTML_ELEMENT_TYPE_OPTION:
256		SET_HTML_CLASS(OPTION)
257		break;
258	case DOM_HTML_ELEMENT_TYPE_SELECT:
259		SET_HTML_CLASS(SELECT)
260		break;
261	case DOM_HTML_ELEMENT_TYPE_HR:
262		SET_HTML_CLASS(HR)
263		break;
264	case DOM_HTML_ELEMENT_TYPE_DL:
265		SET_HTML_CLASS(DLIST)
266		break;
267	case DOM_HTML_ELEMENT_TYPE_DIR:
268		SET_HTML_CLASS(DIRECTORY)
269		break;
270	case DOM_HTML_ELEMENT_TYPE_MENU:
271		SET_HTML_CLASS(MENU)
272		break;
273	case DOM_HTML_ELEMENT_TYPE_FIELDSET:
274		SET_HTML_CLASS(FIELDSET)
275		break;
276	case DOM_HTML_ELEMENT_TYPE_LEGEND:
277		SET_HTML_CLASS(LEGEND)
278		break;
279	case DOM_HTML_ELEMENT_TYPE_P:
280		SET_HTML_CLASS(PARAGRAPH)
281		break;
282	case DOM_HTML_ELEMENT_TYPE_H1:
283	case DOM_HTML_ELEMENT_TYPE_H2:
284	case DOM_HTML_ELEMENT_TYPE_H3:
285	case DOM_HTML_ELEMENT_TYPE_H4:
286	case DOM_HTML_ELEMENT_TYPE_H5:
287	case DOM_HTML_ELEMENT_TYPE_H6:
288		SET_HTML_CLASS(HEADING)
289		break;
290	case DOM_HTML_ELEMENT_TYPE_BLOCKQUOTE:
291	case DOM_HTML_ELEMENT_TYPE_Q:
292		SET_HTML_CLASS(QUOTE)
293		break;
294	case DOM_HTML_ELEMENT_TYPE_PRE:
295		SET_HTML_CLASS(PRE)
296		break;
297	case DOM_HTML_ELEMENT_TYPE_BR:
298		SET_HTML_CLASS(BR)
299		break;
300	case DOM_HTML_ELEMENT_TYPE_LABEL:
301		SET_HTML_CLASS(LABEL)
302		break;
303	case DOM_HTML_ELEMENT_TYPE_UL:
304		SET_HTML_CLASS(ULIST)
305		break;
306	case DOM_HTML_ELEMENT_TYPE_OL:
307		SET_HTML_CLASS(OLIST)
308		break;
309	case DOM_HTML_ELEMENT_TYPE_LI:
310		SET_HTML_CLASS(LI)
311		break;
312	case DOM_HTML_ELEMENT_TYPE_FONT:
313		SET_HTML_CLASS(FONT)
314		break;
315	case DOM_HTML_ELEMENT_TYPE_DEL:
316	case DOM_HTML_ELEMENT_TYPE_INS:
317		SET_HTML_CLASS(MOD)
318		break;
319	case DOM_HTML_ELEMENT_TYPE_A:
320		SET_HTML_CLASS(ANCHOR)
321		break;
322	case DOM_HTML_ELEMENT_TYPE_BASEFONT:
323		SET_HTML_CLASS(BASEFONT)
324		break;
325	case DOM_HTML_ELEMENT_TYPE_IMG:
326		SET_HTML_CLASS(IMAGE)
327		break;
328	case DOM_HTML_ELEMENT_TYPE_OBJECT:
329		SET_HTML_CLASS(OBJECT)
330		break;
331	case DOM_HTML_ELEMENT_TYPE_PARAM:
332		SET_HTML_CLASS(PARAM)
333		break;
334	case DOM_HTML_ELEMENT_TYPE_APPLET:
335		SET_HTML_CLASS(APPLET)
336		break;
337	case DOM_HTML_ELEMENT_TYPE_MAP:
338		SET_HTML_CLASS(MAP)
339		break;
340	case DOM_HTML_ELEMENT_TYPE_AREA:
341		SET_HTML_CLASS(AREA)
342		break;
343	case DOM_HTML_ELEMENT_TYPE_SCRIPT:
344		SET_HTML_CLASS(SCRIPT)
345		break;
346	case DOM_HTML_ELEMENT_TYPE_CAPTION:
347		SET_HTML_CLASS(TABLECAPTION)
348		break;
349	case DOM_HTML_ELEMENT_TYPE_TD:
350	case DOM_HTML_ELEMENT_TYPE_TH:
351		SET_HTML_CLASS(TABLECELL)
352		break;
353	case DOM_HTML_ELEMENT_TYPE_COL:
354	case DOM_HTML_ELEMENT_TYPE_COLGROUP:
355		SET_HTML_CLASS(TABLECOL)
356		break;
357	case DOM_HTML_ELEMENT_TYPE_THEAD:
358	case DOM_HTML_ELEMENT_TYPE_TBODY:
359	case DOM_HTML_ELEMENT_TYPE_TFOOT:
360		SET_HTML_CLASS(TABLESECTION)
361		break;
362	case DOM_HTML_ELEMENT_TYPE_TABLE:
363		SET_HTML_CLASS(TABLE)
364		break;
365	case DOM_HTML_ELEMENT_TYPE_TR:
366		SET_HTML_CLASS(TABLEROW)
367		break;
368	case DOM_HTML_ELEMENT_TYPE_STYLE:
369		SET_HTML_CLASS(STYLE)
370		break;
371	case DOM_HTML_ELEMENT_TYPE_FRAMESET:
372		SET_HTML_CLASS(FRAMESET)
373		break;
374	case DOM_HTML_ELEMENT_TYPE_FRAME:
375		SET_HTML_CLASS(FRAME)
376		break;
377	case DOM_HTML_ELEMENT_TYPE_IFRAME:
378		SET_HTML_CLASS(IFRAME)
379		break;
380	case DOM_HTML_ELEMENT_TYPE_ISINDEX:
381		SET_HTML_CLASS(ISINDEX)
382		break;
383	case DOM_HTML_ELEMENT_TYPE_CANVAS:
384		SET_HTML_CLASS(CANVAS)
385		break;
386	case DOM_HTML_ELEMENT_TYPE__COUNT:
387		assert(type != DOM_HTML_ELEMENT_TYPE__COUNT)((type != DOM_HTML_ELEMENT_TYPE__COUNT) ? (void) (0) : __assert_fail
 ("type != DOM_HTML_ELEMENT_TYPE__COUNT", "content/handlers/javascript/duktape/dukky.c"
, 387, __extension__ __PRETTY_FUNCTION__));
388		fallthrough__attribute__((__fallthrough__));
389	case DOM_HTML_ELEMENT_TYPE__UNKNOWN:
390		SET_HTML_CLASS(UNKNOWN)
391		break;
392	default:
393		/* Known HTML element without a specialisation */
394		*html_class = PROTO_NAME(HTMLELEMENT)("\xFF\xFFNETSURF_DUKTAPE_" "PROTOTYPE_" "HTMLELEMENT");
395		*html_class_len =
396				SLEN(PROTO_NAME(HTML))(sizeof((("\xFF\xFFNETSURF_DUKTAPE_" "PROTOTYPE_" "HTML"))) -
 1) +
397				SLEN("ELEMENT")(sizeof(("ELEMENT")) - 1);
398		break;
399	}
400	return;
401}
402 
403#undef SET_HTML_CLASS
404 
405static void
406dukky_push_node_klass(duk_context *ctx, struct dom_node *node)
407{
408	dom_node_type nodetype;
409	dom_exception err;
410 
411	err = dom_node_get_node_type(node, &nodetype)dom_node_get_node_type( (dom_node *) (node), (dom_node_type *
) (&nodetype));
412	if (err != DOM_NO_ERR) {
413		/* Oh bum, just node then */
414		duk_push_string(ctx, PROTO_NAME(NODE)("\xFF\xFFNETSURF_DUKTAPE_" "PROTOTYPE_" "NODE"));
415		return;
416	}
417 
418	switch(nodetype) {
419	case DOM_ELEMENT_NODE: {
420		dom_string *namespace;
421		dom_html_element_type type;
422		const char *html_class;
423		size_t html_class_len;
424		err = dom_node_get_namespace(node, &namespace)dom_node_get_namespace((dom_node *) (node), (&namespace));
425		if (err != DOM_NO_ERR) {
426			/* Feck it, element */
427			NSLOG(dukky, ERROR,do { if (NSLOG_LEVEL_ERROR >= NSLOG_LEVEL_VERBOSE) { static
 nslog_entry_context_t _nslog_ctx = { &__nslog_category_dukky
, NSLOG_LEVEL_ERROR, "content/handlers/javascript/duktape/dukky.c"
, sizeof("content/handlers/javascript/duktape/dukky.c") - 1, __PRETTY_FUNCTION__
, sizeof(__PRETTY_FUNCTION__) - 1, 428, }; nslog__log(&_nslog_ctx
, "dom_node_get_namespace() failed"); } } while(0)
428			      "dom_node_get_namespace() failed")do { if (NSLOG_LEVEL_ERROR >= NSLOG_LEVEL_VERBOSE) { static
 nslog_entry_context_t _nslog_ctx = { &__nslog_category_dukky
, NSLOG_LEVEL_ERROR, "content/handlers/javascript/duktape/dukky.c"
, sizeof("content/handlers/javascript/duktape/dukky.c") - 1, __PRETTY_FUNCTION__
, sizeof(__PRETTY_FUNCTION__) - 1, 428, }; nslog__log(&_nslog_ctx
, "dom_node_get_namespace() failed"); } } while(0);
429			duk_push_string(ctx, PROTO_NAME(ELEMENT)("\xFF\xFFNETSURF_DUKTAPE_" "PROTOTYPE_" "ELEMENT"));
430			break;
431		}
432		if (namespace == NULL((void*)0)) {
433			/* No namespace, -> element */
434			NSLOG(dukky, DEBUG, "no namespace")do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static
 nslog_entry_context_t _nslog_ctx = { &__nslog_category_dukky
, NSLOG_LEVEL_DEBUG, "content/handlers/javascript/duktape/dukky.c"
, sizeof("content/handlers/javascript/duktape/dukky.c") - 1, __PRETTY_FUNCTION__
, sizeof(__PRETTY_FUNCTION__) - 1, 434, }; nslog__log(&_nslog_ctx
, "no namespace"); } } while(0);
435			duk_push_string(ctx, PROTO_NAME(ELEMENT)("\xFF\xFFNETSURF_DUKTAPE_" "PROTOTYPE_" "ELEMENT"));
436			break;
437		}
438 
439		if (dom_string_isequal(namespace, corestring_dom_html_namespace) == false0) {
440			/* definitely not an HTML element of some kind */
441			duk_push_string(ctx, PROTO_NAME(ELEMENT)("\xFF\xFFNETSURF_DUKTAPE_" "PROTOTYPE_" "ELEMENT"));
442			dom_string_unref(namespace);
443			break;
444		}
445		dom_string_unref(namespace);
446 
447		err = dom_html_element_get_tag_type(node, &type)dom_html_element_get_tag_type((const dom_html_element *) (node
), (&type));
448		if (err != DOM_NO_ERR) {
449			type = DOM_HTML_ELEMENT_TYPE__UNKNOWN;
450		}
451 
452		dukky_html_element_class_from_tag_type(type,
453				&html_class, &html_class_len);
454 
455		duk_push_lstring(ctx, html_class, html_class_len);
456		break;
457	}
458	case DOM_TEXT_NODE:
459		duk_push_string(ctx, PROTO_NAME(TEXT)("\xFF\xFFNETSURF_DUKTAPE_" "PROTOTYPE_" "TEXT"));
460		break;
461	case DOM_COMMENT_NODE:
462		duk_push_string(ctx, PROTO_NAME(COMMENT)("\xFF\xFFNETSURF_DUKTAPE_" "PROTOTYPE_" "COMMENT"));
463		break;
464	case DOM_DOCUMENT_NODE:
465		duk_push_string(ctx, PROTO_NAME(DOCUMENT)("\xFF\xFFNETSURF_DUKTAPE_" "PROTOTYPE_" "DOCUMENT"));
466		break;
467	case DOM_ATTRIBUTE_NODE:
468	case DOM_PROCESSING_INSTRUCTION_NODE:
469	case DOM_DOCUMENT_TYPE_NODE:
470	case DOM_DOCUMENT_FRAGMENT_NODE:
471	case DOM_NOTATION_NODE:
472	case DOM_ENTITY_REFERENCE_NODE:
473	case DOM_ENTITY_NODE:
474	case DOM_CDATA_SECTION_NODE:
475	default:
476		/* Oh bum, just node then */
477		duk_push_string(ctx, PROTO_NAME(NODE)("\xFF\xFFNETSURF_DUKTAPE_" "PROTOTYPE_" "NODE"));
478	}
479}
480 
481duk_bool_t
482dukky_push_node(duk_context *ctx, struct dom_node *node)
483{
484	NSLOG(dukky, DEEPDEBUG, "Pushing node %p", node)do { if (NSLOG_LEVEL_DEEPDEBUG >= NSLOG_LEVEL_VERBOSE) { static
 nslog_entry_context_t _nslog_ctx = { &__nslog_category_dukky
, NSLOG_LEVEL_DEEPDEBUG, "content/handlers/javascript/duktape/dukky.c"
, sizeof("content/handlers/javascript/duktape/dukky.c") - 1, __PRETTY_FUNCTION__
, sizeof(__PRETTY_FUNCTION__) - 1, 484, }; nslog__log(&_nslog_ctx
, "Pushing node %p", node); } } while(0);
485	/* First check if we can find the node */
486	/* ... */
487	duk_get_global_string(ctx, NODE_MAGIC("\xFF\xFFNETSURF_DUKTAPE_" "NODE_MAP"));
488	/* ... nodes */
489	duk_push_pointer(ctx, node);
490	/* ... nodes nodeptr */
491	duk_get_prop(ctx, -2);
492	/* ... nodes node/undefined */
493	if (!duk_is_undefined(ctx, -1)) {
494		/* ... nodes node */
495		duk_insert(ctx, -2);
496		/* ... node nodes */
497		duk_pop(ctx);
498		/* ... node */
499		if (NSLOG_COMPILED_MIN_LEVELNSLOG_LEVEL_VERBOSE <= NSLOG_LEVEL_DEEPDEBUG) {
500			duk_dup(ctx, -1);
501			const char * what = duk_safe_to_string(ctx, -1)duk_safe_to_lstring((ctx), (-1), ((void*)0));
502			NSLOG(dukky, DEEPDEBUG, "Found it memoised: %s", what)do { if (NSLOG_LEVEL_DEEPDEBUG >= NSLOG_LEVEL_VERBOSE) { static
 nslog_entry_context_t _nslog_ctx = { &__nslog_category_dukky
, NSLOG_LEVEL_DEEPDEBUG, "content/handlers/javascript/duktape/dukky.c"
, sizeof("content/handlers/javascript/duktape/dukky.c") - 1, __PRETTY_FUNCTION__
, sizeof(__PRETTY_FUNCTION__) - 1, 502, }; nslog__log(&_nslog_ctx
, "Found it memoised: %s", what); } } while(0);
503			duk_pop(ctx);
504		}
505		return true1;
506	}
507	/* ... nodes undefined */
508	duk_pop_2(ctx);
509	/* ... */
510	/* We couldn't, so now we determine the node type and then
511	 * we ask for it to be created
512	 */
513	duk_push_pointer(ctx, node);
514	/* ... nodeptr */
515	dukky_push_node_klass(ctx, node);
516	/* ... nodeptr klass */
517	return dukky_push_node_stacked(ctx);
518}
519 
520static duk_ret_t
521dukky_bad_constructor(duk_context *ctx)
522{
523	return duk_error(ctx, DUK_ERR_ERROR, "Bad constructor")(duk_error_raw((ctx), (duk_errcode_t) (1), (const char *) ("content/handlers/javascript/duktape/dukky.c"
), (duk_int_t) (523), "Bad constructor"), (duk_ret_t) 0);
524}
525 
526void
527dukky_inject_not_ctr(duk_context *ctx, int idx, const char *name)
528{
529	/* ... p[idx] ... proto */
530	duk_push_c_function(ctx, dukky_bad_constructor, 0);
531	/* ... p[idx] ... proto cons */
532	duk_insert(ctx, -2);
533	/* ... p[idx] ... cons proto */
534	duk_put_prop_string(ctx, -2, "prototype");
535	/* ... p[idx] ... cons[proto] */
536	duk_put_prop_string(ctx, idx, name);
537	/* ... p ... */
538	return;
539}
540 
541/* Duktape heap utility functions */
542 
543/* We need to override the defaults because not all platforms are fully ANSI
544 * compatible.  E.g. RISC OS gets upset if we malloc or realloc a zero byte
545 * block, as do debugging tools such as Electric Fence by Bruce Perens.
546 */
547 
548static void *dukky_alloc_function(void *udata, duk_size_t size)
549{
550	if (size == 0)
551		return NULL((void*)0);
552 
553	return malloc(size);
554}
555 
556static void *dukky_realloc_function(void *udata, void *ptr, duk_size_t size)
557{
558	if (ptr == NULL((void*)0) && size == 0)
559		return NULL((void*)0);
560 
561	if (size == 0) {
562		free(ptr);
563		return NULL((void*)0);
564	}
565 
566	return realloc(ptr, size);
567}
568 
569 
570static void dukky_free_function(void *udata, void *ptr)
571{
572	if (ptr != NULL((void*)0))
573		free(ptr);
574}
575 
576/* exported interface documented in js.h */
577void js_initialise(void)
578{
579	/** TODO: Forces JS on for our testing, needs changing before a release
580	 * lest we incur the wrath of others.
581	 */
582	/* Disabled force-on for forthcoming release */
583	/* nsoption_set_bool(enable_javascript, true);
584	 */
585	javascript_init();
586}
587 
588 
589/* exported interface documented in js.h */
590void js_finalise(void)
591{
592	/* NADA for now */
593}
594 
595 
596/* exported interface documented in js.h */
597nserror
598js_newheap(int timeout, jsheap **heap)
599{
600	duk_context *ctx;
601	jsheap *ret = calloc(1, sizeof(*ret));
602	*heap = NULL((void*)0);
603	NSLOG(dukky, DEBUG, "Creating new duktape javascript heap")do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static
 nslog_entry_context_t _nslog_ctx = { &__nslog_category_dukky
, NSLOG_LEVEL_DEBUG, "content/handlers/javascript/duktape/dukky.c"
, sizeof("content/handlers/javascript/duktape/dukky.c") - 1, __PRETTY_FUNCTION__
, sizeof(__PRETTY_FUNCTION__) - 1, 603, }; nslog__log(&_nslog_ctx
, "Creating new duktape javascript heap"); } } while(0);
604	if (ret == NULL((void*)0)) return NSERROR_NOMEM;
605	ctx = ret->ctx = duk_create_heap(
606		dukky_alloc_function,
607		dukky_realloc_function,
608		dukky_free_function,
609		ret,
610		NULL((void*)0));
611	if (ret->ctx == NULL((void*)0)) { free(ret); return NSERROR_NOMEM; }
612	/* Create the prototype stuffs */
613	duk_push_global_object(ctx);
614	duk_push_boolean(ctx, true1);
615	duk_put_prop_string(ctx, -2, "protos");
616	duk_put_global_string(ctx, PROTO_MAGIC("\xFF\xFFNETSURF_DUKTAPE_" "PROTOTYPES"));
617	/* Create prototypes here */
618	dukky_create_prototypes(ctx);
619	/* Now create the thread map */
620	duk_push_object(ctx);
621	duk_put_global_string(ctx, THREAD_MAP("\xFF\xFFNETSURF_DUKTAPE_" "THREAD_MAP"));
622 
623	*heap = ret;
624	return NSERROR_OK;
625}
626 
627 
628static void dukky_destroyheap(jsheap *heap)
629{
630	assert(heap->pending_destroy == true)((heap->pending_destroy == 1) ? (void) (0) : __assert_fail
 ("heap->pending_destroy == true", "content/handlers/javascript/duktape/dukky.c"
, 630, __extension__ __PRETTY_FUNCTION__));
631	assert(heap->live_threads == 0)((heap->live_threads == 0) ? (void) (0) : __assert_fail ("heap->live_threads == 0"
, "content/handlers/javascript/duktape/dukky.c", 631, __extension__
 __PRETTY_FUNCTION__));
632	NSLOG(dukky, DEBUG, "Destroying duktape javascript context")do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static
 nslog_entry_context_t _nslog_ctx = { &__nslog_category_dukky
, NSLOG_LEVEL_DEBUG, "content/handlers/javascript/duktape/dukky.c"
, sizeof("content/handlers/javascript/duktape/dukky.c") - 1, __PRETTY_FUNCTION__
, sizeof(__PRETTY_FUNCTION__) - 1, 632, }; nslog__log(&_nslog_ctx
, "Destroying duktape javascript context"); } } while(0);
633	duk_destroy_heap(heap->ctx);
634	free(heap);
635}
636 
637/* exported interface documented in js.h */
638void js_destroyheap(jsheap *heap)
639{
640	heap->pending_destroy = true1;
641	if (heap->live_threads == 0) {
642		dukky_destroyheap(heap);
643	}
644}
645 
646/* Just for here, the CTX is in ret, not thread */
647#define CTX(thread->ctx) (ret->ctx)
648 
649/* exported interface documented in js.h */
650nserror js_newthread(jsheap *heap, void *win_priv, void *doc_priv, jsthread **thread)
651{
652	jsthread *ret;
653	assert(heap != NULL)((heap != ((void*)0)) ? (void) (0) : __assert_fail ("heap != NULL"
, "content/handlers/javascript/duktape/dukky.c", 653, __extension__
 __PRETTY_FUNCTION__));
654	assert(heap->pending_destroy == false)((heap->pending_destroy == 0) ? (void) (0) : __assert_fail
 ("heap->pending_destroy == false", "content/handlers/javascript/duktape/dukky.c"
, 654, __extension__ __PRETTY_FUNCTION__));
655 
656	ret = calloc(1, sizeof (*ret));
657	if (ret == NULL((void*)0)) {
658		NSLOG(dukky, ERROR, "Unable to allocate new JS thread structure")do { if (NSLOG_LEVEL_ERROR >= NSLOG_LEVEL_VERBOSE) { static
 nslog_entry_context_t _nslog_ctx = { &__nslog_category_dukky
, NSLOG_LEVEL_ERROR, "content/handlers/javascript/duktape/dukky.c"
, sizeof("content/handlers/javascript/duktape/dukky.c") - 1, __PRETTY_FUNCTION__
, sizeof(__PRETTY_FUNCTION__) - 1, 658, }; nslog__log(&_nslog_ctx
, "Unable to allocate new JS thread structure"); } } while(0);
659		return NSERROR_NOMEM;
660	}
661 
662	NSLOG(dukky, DEBUG,do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static
 nslog_entry_context_t _nslog_ctx = { &__nslog_category_dukky
, NSLOG_LEVEL_DEBUG, "content/handlers/javascript/duktape/dukky.c"
, sizeof("content/handlers/javascript/duktape/dukky.c") - 1, __PRETTY_FUNCTION__
, sizeof(__PRETTY_FUNCTION__) - 1, 664, }; nslog__log(&_nslog_ctx
, "New javascript/duktape thread, win_priv=%p, doc_priv=%p", win_priv
, doc_priv); } } while(0)
663	      "New javascript/duktape thread, win_priv=%p, doc_priv=%p",do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static
 nslog_entry_context_t _nslog_ctx = { &__nslog_category_dukky
, NSLOG_LEVEL_DEBUG, "content/handlers/javascript/duktape/dukky.c"
, sizeof("content/handlers/javascript/duktape/dukky.c") - 1, __PRETTY_FUNCTION__
, sizeof(__PRETTY_FUNCTION__) - 1, 664, }; nslog__log(&_nslog_ctx
, "New javascript/duktape thread, win_priv=%p, doc_priv=%p", win_priv
, doc_priv); } } while(0)
664	      win_priv, doc_priv)do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static
 nslog_entry_context_t _nslog_ctx = { &__nslog_category_dukky
, NSLOG_LEVEL_DEBUG, "content/handlers/javascript/duktape/dukky.c"
, sizeof("content/handlers/javascript/duktape/dukky.c") - 1, __PRETTY_FUNCTION__
, sizeof(__PRETTY_FUNCTION__) - 1, 664, }; nslog__log(&_nslog_ctx
, "New javascript/duktape thread, win_priv=%p, doc_priv=%p", win_priv
, doc_priv); } } while(0);
665 
666	/* create new thread */
667	duk_get_global_string(heap->ctx, THREAD_MAP("\xFF\xFFNETSURF_DUKTAPE_" "THREAD_MAP")); /* ... threads */
668	duk_push_thread(heap->ctx)duk_push_thread_raw((heap->ctx), 0 ); /* ... threads thread */
669	ret->heap = heap;
670	ret->ctx = duk_require_context(heap->ctx, -1);
671	ret->thread_idx = heap->next_thread++;
672	duk_put_prop_index(heap->ctx, -2, ret->thread_idx);
673	heap->live_threads++;
674	duk_pop(heap->ctx); /* ... */
675	duk_push_int(CTX(thread->ctx), 0);
676	duk_push_int(CTX(thread->ctx), 1);
677	duk_push_int(CTX(thread->ctx), 2);
678	/* Manufacture a Window object */
679	/* win_priv is a browser_window, doc_priv is an html content struct */
680	duk_push_pointer(CTX(thread->ctx), win_priv);
681	duk_push_pointer(CTX(thread->ctx), doc_priv);
682	dukky_create_object(CTX(thread->ctx), PROTO_NAME(WINDOW)("\xFF\xFFNETSURF_DUKTAPE_" "PROTOTYPE_" "WINDOW"), 2);
683	duk_push_global_object(CTX(thread->ctx));
684	duk_put_prop_string(CTX(thread->ctx), -2, PROTO_MAGIC("\xFF\xFFNETSURF_DUKTAPE_" "PROTOTYPES"));
685	duk_set_global_object(CTX(thread->ctx));
686 
687	/* Now we need to prepare our node mapping table */
688	duk_push_object(CTX(thread->ctx));
689	duk_push_pointer(CTX(thread->ctx), NULL((void*)0));
690	duk_push_null(CTX(thread->ctx));
691	duk_put_prop(CTX(thread->ctx), -3);
692	duk_put_global_string(CTX(thread->ctx), NODE_MAGIC("\xFF\xFFNETSURF_DUKTAPE_" "NODE_MAP"));
693 
694	/* And now the event mapping table */
695	duk_push_object(CTX(thread->ctx));
696	duk_put_global_string(CTX(thread->ctx), EVENT_MAGIC("\xFF\xFFNETSURF_DUKTAPE_" "EVENT_MAP"));
697 
698	/* Now load the polyfills */
699	/* ... */
700	duk_push_string(CTX(thread->ctx), "polyfill.js");
701	/* ..., polyfill.js */
702	if (duk_pcompile_lstring_filename(CTX, DUK_COMPILE_EVAL,(duk_compile_raw(((thread->ctx)), (const char *)polyfill_js
, polyfill_js_len, 1 | ((1U << 3)) | (1U << 7) | (
1U << 9)))
703					  (const char *)polyfill_js, polyfill_js_len)(duk_compile_raw(((thread->ctx)), (const char *)polyfill_js
, polyfill_js_len, 1 | ((1U << 3)) | (1U << 7) | (
1U << 9))) != 0) {
704		NSLOG(dukky, CRITICAL, "%s", duk_safe_to_string(CTX, -1))do { if (NSLOG_LEVEL_CRITICAL >= NSLOG_LEVEL_VERBOSE) { static
 nslog_entry_context_t _nslog_ctx = { &__nslog_category_dukky
, NSLOG_LEVEL_CRITICAL, "content/handlers/javascript/duktape/dukky.c"
, sizeof("content/handlers/javascript/duktape/dukky.c") - 1, __PRETTY_FUNCTION__
, sizeof(__PRETTY_FUNCTION__) - 1, 704, }; nslog__log(&_nslog_ctx
, "%s", duk_safe_to_lstring(((thread->ctx)), (-1), ((void*
)0))); } } while(0);
705		NSLOG(dukky, CRITICAL, "Unable to compile polyfill.js, thread aborted")do { if (NSLOG_LEVEL_CRITICAL >= NSLOG_LEVEL_VERBOSE) { static
 nslog_entry_context_t _nslog_ctx = { &__nslog_category_dukky
, NSLOG_LEVEL_CRITICAL, "content/handlers/javascript/duktape/dukky.c"
, sizeof("content/handlers/javascript/duktape/dukky.c") - 1, __PRETTY_FUNCTION__
, sizeof(__PRETTY_FUNCTION__) - 1, 705, }; nslog__log(&_nslog_ctx
, "Unable to compile polyfill.js, thread aborted"); } } while
(0);
706		js_destroythread(ret);
707		return NSERROR_INIT_FAILED;
708	}
709	/* ..., (generics.js) */
710	if (dukky_pcall(CTX(thread->ctx), 0, true1) != 0) {
711		NSLOG(dukky, CRITICAL, "Unable to run polyfill.js, thread aborted")do { if (NSLOG_LEVEL_CRITICAL >= NSLOG_LEVEL_VERBOSE) { static
 nslog_entry_context_t _nslog_ctx = { &__nslog_category_dukky
, NSLOG_LEVEL_CRITICAL, "content/handlers/javascript/duktape/dukky.c"
, sizeof("content/handlers/javascript/duktape/dukky.c") - 1, __PRETTY_FUNCTION__
, sizeof(__PRETTY_FUNCTION__) - 1, 711, }; nslog__log(&_nslog_ctx
, "Unable to run polyfill.js, thread aborted"); } } while(0);
712		js_destroythread(ret);
713		return NSERROR_INIT_FAILED;
714	}
715	/* ..., result */
716	duk_pop(CTX(thread->ctx));
717	/* ... */
718 
719	/* Now load the NetSurf table in */
720	/* ... */
721	duk_push_string(CTX(thread->ctx), "generics.js");
722	/* ..., generics.js */
723	if (duk_pcompile_lstring_filename(CTX, DUK_COMPILE_EVAL,(duk_compile_raw(((thread->ctx)), (const char *)generics_js
, generics_js_len, 1 | ((1U << 3)) | (1U << 7) | (
1U << 9)))
724					  (const char *)generics_js, generics_js_len)(duk_compile_raw(((thread->ctx)), (const char *)generics_js
, generics_js_len, 1 | ((1U << 3)) | (1U << 7) | (
1U << 9))) != 0) {
725		NSLOG(dukky, CRITICAL, "%s", duk_safe_to_string(CTX, -1))do { if (NSLOG_LEVEL_CRITICAL >= NSLOG_LEVEL_VERBOSE) { static
 nslog_entry_context_t _nslog_ctx = { &__nslog_category_dukky
, NSLOG_LEVEL_CRITICAL, "content/handlers/javascript/duktape/dukky.c"
, sizeof("content/handlers/javascript/duktape/dukky.c") - 1, __PRETTY_FUNCTION__
, sizeof(__PRETTY_FUNCTION__) - 1, 725, }; nslog__log(&_nslog_ctx
, "%s", duk_safe_to_lstring(((thread->ctx)), (-1), ((void*
)0))); } } while(0);
726		NSLOG(dukky, CRITICAL, "Unable to compile generics.js, thread aborted")do { if (NSLOG_LEVEL_CRITICAL >= NSLOG_LEVEL_VERBOSE) { static
 nslog_entry_context_t _nslog_ctx = { &__nslog_category_dukky
, NSLOG_LEVEL_CRITICAL, "content/handlers/javascript/duktape/dukky.c"
, sizeof("content/handlers/javascript/duktape/dukky.c") - 1, __PRETTY_FUNCTION__
, sizeof(__PRETTY_FUNCTION__) - 1, 726, }; nslog__log(&_nslog_ctx
, "Unable to compile generics.js, thread aborted"); } } while
(0);
727		js_destroythread(ret);
728		return NSERROR_INIT_FAILED;
729	}
730	/* ..., (generics.js) */
731	if (dukky_pcall(CTX(thread->ctx), 0, true1) != 0) {
732		NSLOG(dukky, CRITICAL, "Unable to run generics.js, thread aborted")do { if (NSLOG_LEVEL_CRITICAL >= NSLOG_LEVEL_VERBOSE) { static
 nslog_entry_context_t _nslog_ctx = { &__nslog_category_dukky
, NSLOG_LEVEL_CRITICAL, "content/handlers/javascript/duktape/dukky.c"
, sizeof("content/handlers/javascript/duktape/dukky.c") - 1, __PRETTY_FUNCTION__
, sizeof(__PRETTY_FUNCTION__) - 1, 732, }; nslog__log(&_nslog_ctx
, "Unable to run generics.js, thread aborted"); } } while(0);
733		js_destroythread(ret);
734		return NSERROR_INIT_FAILED;
735	}
736	/* ..., result */
737	duk_pop(CTX(thread->ctx));
738	/* ... */
739	duk_push_global_object(CTX(thread->ctx));
740	/* ..., Win */
741	duk_get_prop_string(CTX(thread->ctx), -1, "NetSurf");
742	/* ..., Win, NetSurf */
743	duk_put_global_string(CTX(thread->ctx), GENERICS_MAGIC("\xFF\xFFNETSURF_DUKTAPE_" "GENERICS_TABLE"));
744	/* ..., Win */
745	duk_del_prop_string(CTX(thread->ctx), -1, "NetSurf");
746	duk_pop(CTX(thread->ctx));
747	/* ... */
748 
749	dukky_log_stack_frame(CTX(thread->ctx), "New thread created");
750	NSLOG(dukky, DEBUG, "New thread is %p in heap %p", thread, heap)do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static
 nslog_entry_context_t _nslog_ctx = { &__nslog_category_dukky
, NSLOG_LEVEL_DEBUG, "content/handlers/javascript/duktape/dukky.c"
, sizeof("content/handlers/javascript/duktape/dukky.c") - 1, __PRETTY_FUNCTION__
, sizeof(__PRETTY_FUNCTION__) - 1, 750, }; nslog__log(&_nslog_ctx
, "New thread is %p in heap %p", thread, heap); } } while(0);
751	*thread = ret;
752 
753	return NSERROR_OK;
754}
755 
756/* Now switch to the long term CTX behaviour */
757#undef CTX(thread->ctx)
758#define CTX(thread->ctx) (thread->ctx)
759 
760/* exported interface documented in js.h */
761nserror js_closethread(jsthread *thread)
762{
763	/* We can always close down a thread, it might just confuse
764	 * the code running, though we don't mind since we're in the
765	 * process of destruction at this point
766	 */
767	duk_int_t top = duk_get_top(CTX(thread->ctx));
768 
769	/* Closing down the extant thread */
770	NSLOG(dukky, DEBUG, "Closing down extant thread %p in heap %p", thread, thread->heap)do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static
 nslog_entry_context_t _nslog_ctx = { &__nslog_category_dukky
, NSLOG_LEVEL_DEBUG, "content/handlers/javascript/duktape/dukky.c"
, sizeof("content/handlers/javascript/duktape/dukky.c") - 1, __PRETTY_FUNCTION__
, sizeof(__PRETTY_FUNCTION__) - 1, 770, }; nslog__log(&_nslog_ctx
, "Closing down extant thread %p in heap %p", thread, thread->
heap); } } while(0);
771	duk_get_global_string(CTX(thread->ctx), MAGIC(closedownThread)("\xFF\xFFNETSURF_DUKTAPE_" "closedownThread"));
772	dukky_pcall(CTX(thread->ctx), 0, true1);
773 
774	/* Restore whatever stack we had */
775	duk_set_top(CTX(thread->ctx), top);
776 
777	return NSERROR_OK;
778}
779 
780/**
781 * Destroy a Duktape thread
782 */
783static void dukky_destroythread(jsthread *thread)
784{
785	jsheap *heap = thread->heap;
786 
787	assert(thread->in_use == 0)((thread->in_use == 0) ? (void) (0) : __assert_fail ("thread->in_use == 0"
, "content/handlers/javascript/duktape/dukky.c", 787, __extension__
 __PRETTY_FUNCTION__));
36
←
'?' condition is true→
788	assert(thread->pending_destroy == true)((thread->pending_destroy == 1) ? (void) (0) : __assert_fail
 ("thread->pending_destroy == true", "content/handlers/javascript/duktape/dukky.c"
, 788, __extension__ __PRETTY_FUNCTION__));
37
←
'?' condition is true→
789 
790	/* Closing down the extant thread */
791	NSLOG(dukky, DEBUG, "Closing down extant thread %p in heap %p", thread, heap)do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static
 nslog_entry_context_t _nslog_ctx = { &__nslog_category_dukky
, NSLOG_LEVEL_DEBUG, "content/handlers/javascript/duktape/dukky.c"
, sizeof("content/handlers/javascript/duktape/dukky.c") - 1, __PRETTY_FUNCTION__
, sizeof(__PRETTY_FUNCTION__) - 1, 791, }; nslog__log(&_nslog_ctx
, "Closing down extant thread %p in heap %p", thread, heap); }
 } while(0);
38
←
Taking false branch→
39
←
Loop condition is false.  Exiting loop→
792	duk_get_global_string(CTX(thread->ctx), MAGIC(closedownThread)("\xFF\xFFNETSURF_DUKTAPE_" "closedownThread"));
793	dukky_pcall(CTX(thread->ctx), 0, true1);
794 
795	/* Now delete the thread from the heap */
796	duk_get_global_string(heap->ctx, THREAD_MAP("\xFF\xFFNETSURF_DUKTAPE_" "THREAD_MAP")); /* ... threads */
797	duk_del_prop_index(heap->ctx, -1, thread->thread_idx);
798	duk_pop(heap->ctx); /* ... */
799 
800	/* We can now free the thread object */
801	free(thread);
40
←
Memory is released→
802 
803	/* Finally give the heap a chance to clean up */
804	duk_gc(heap->ctx, 0);
805	duk_gc(heap->ctx, DUK_GC_COMPACT(1U << 0));
806	heap->live_threads--;
807 
808	/* And if the heap should now go, blow it away */
809	if (heap->pending_destroy == true1 && heap->live_threads == 0) {
41
←
Assuming field 'pending_destroy' is not equal to true→
810		dukky_destroyheap(heap);
811	}
812}
813 
814/* exported interface documented in js.h */
815void js_destroythread(jsthread *thread)
816{
817	thread->pending_destroy = true1;
818	if (thread->in_use == 0) {
819		dukky_destroythread(thread);
820	}
821}
822 
823static void dukky_enter_thread(jsthread *thread)
824{
825	assert(thread != NULL)((thread != ((void*)0)) ? (void) (0) : __assert_fail ("thread != NULL"
, "content/handlers/javascript/duktape/dukky.c", 825, __extension__
 __PRETTY_FUNCTION__));
11
←
Assuming 'thread' is not equal to null→
12
←
'?' condition is true→
826	thread->in_use++;
827}
828 
829static void dukky_leave_thread(jsthread *thread)
830{
831	assert(thread != NULL)((thread != ((void*)0)) ? (void) (0) : __assert_fail ("thread != NULL"
, "content/handlers/javascript/duktape/dukky.c", 831, __extension__
 __PRETTY_FUNCTION__));
29
←
'?' condition is true→
832	assert(thread->in_use > 0)((thread->in_use > 0) ? (void) (0) : __assert_fail ("thread->in_use > 0"
, "content/handlers/javascript/duktape/dukky.c", 832, __extension__
 __PRETTY_FUNCTION__));
30
←
Assuming field 'in_use' is > 0→
31
←
'?' condition is true→
833 
834	thread->in_use--;
835	if (thread->in_use == 0 && thread->pending_destroy == true1) {
32
←
Assuming field 'in_use' is equal to 0→
33
←
Assuming field 'pending_destroy' is equal to true→
34
←
Taking true branch→
836		dukky_destroythread(thread);
35
←
Calling 'dukky_destroythread'→
42
←
Returning; memory was released via 1st parameter→
837	}
838}
839 
840duk_bool_t dukky_check_timeout(void *udata)
841{
842#define JS_EXEC_TIMEOUT_MS10000 10000 /* 10 seconds */
843	jsheap *heap = (jsheap *) udata;
844	uint64_t now;
845 
846	(void) nsu_getmonotonic_ms(&now);
847 
848	/* This function may be called during duk heap construction,
849	 * so only test for execution timeout if we've recorded a
850	 * start time.
851	 */
852	return heap->exec_start_time != 0 &&
853			now > (heap->exec_start_time + JS_EXEC_TIMEOUT_MS10000);
854}
855 
856static void dukky_dump_error(duk_context *ctx)
857{
858	/* stack is ..., errobj */
859	duk_dup_top(ctx);
860	/* ..., errobj, errobj */
861	NSLOG(jserrors, WARNING, "Uncaught error in JS: %s", duk_safe_to_stacktrace(ctx, -1))do { if (NSLOG_LEVEL_WARNING >= NSLOG_LEVEL_VERBOSE) { static
 nslog_entry_context_t _nslog_ctx = { &__nslog_category_jserrors
, NSLOG_LEVEL_WARNING, "content/handlers/javascript/duktape/dukky.c"
, sizeof("content/handlers/javascript/duktape/dukky.c") - 1, __PRETTY_FUNCTION__
, sizeof(__PRETTY_FUNCTION__) - 1, 861, }; nslog__log(&_nslog_ctx
, "Uncaught error in JS: %s", duk_safe_to_stacktrace(ctx, -1)
); } } while(0);
862	/* ..., errobj, errobj.stackstring */
863	duk_pop(ctx);
864	/* ..., errobj */
865}
866 
867static void dukky_reset_start_time(duk_context *ctx)
868{
869	duk_memory_functions funcs;
870	jsheap *heap;
871	duk_get_memory_functions(ctx, &funcs);
872	heap = funcs.udata;
873	(void) nsu_getmonotonic_ms(&heap->exec_start_time);
874}
875 
876duk_int_t dukky_pcall(duk_context *ctx, duk_size_t argc, bool_Bool reset_timeout)
877{
878	if (reset_timeout) {
879		dukky_reset_start_time(ctx);
880	}
881 
882	duk_int_t ret = duk_pcall(ctx, argc);
883	if (ret) {
884		/* Something went wrong calling this... */
885		dukky_dump_error(ctx);
886	}
887 
888	return ret;
889}
890 
891 
892void dukky_push_generics(duk_context *ctx, const char *generic)
893{
894	/* ... */
895	duk_get_global_string(ctx, GENERICS_MAGIC("\xFF\xFFNETSURF_DUKTAPE_" "GENERICS_TABLE"));
896	/* ..., generics */
897	duk_get_prop_string(ctx, -1, generic);
898	/* ..., generics, generic */
899	duk_remove(ctx, -2);
900	/* ..., generic */
901}
902 
903static duk_int_t dukky_push_context_dump(duk_context *ctx, void *udata)
904{
905	duk_push_context_dump(ctx);
906	return 1;
907}
908 
909void dukky_log_stack_frame(duk_context *ctx, const char * reason)
910{
911	if (duk_safe_call(ctx, dukky_push_context_dump, NULL((void*)0), 0, 1) != 0) {
912		duk_pop(ctx);
913		duk_push_string(ctx, "[???]");
914	}
915	NSLOG(dukky, DEEPDEBUG, "%s, stack is: %s", reason, duk_safe_to_string(ctx, -1))do { if (NSLOG_LEVEL_DEEPDEBUG >= NSLOG_LEVEL_VERBOSE) { static
 nslog_entry_context_t _nslog_ctx = { &__nslog_category_dukky
, NSLOG_LEVEL_DEEPDEBUG, "content/handlers/javascript/duktape/dukky.c"
, sizeof("content/handlers/javascript/duktape/dukky.c") - 1, __PRETTY_FUNCTION__
, sizeof(__PRETTY_FUNCTION__) - 1, 915, }; nslog__log(&_nslog_ctx
, "%s, stack is: %s", reason, duk_safe_to_lstring((ctx), (-1)
, ((void*)0))); } } while(0);
916	duk_pop(ctx);
917}
918 
919 
920/* exported interface documented in js.h */
921bool_Bool
922js_exec(jsthread *thread, const uint8_t *txt, size_t txtlen, const char *name)
923{
924	bool_Bool ret = false0;
925	assert(thread)((thread) ? (void) (0) : __assert_fail ("thread", "content/handlers/javascript/duktape/dukky.c"
, 925, __extension__ __PRETTY_FUNCTION__));
926 
927	if (txt == NULL((void*)0) || txtlen == 0) {
928		return false0;
929	}
930 
931	if (thread->pending_destroy) {
932		NSLOG(dukky, DEEPDEBUG, "Skipping exec call because thread is dead")do { if (NSLOG_LEVEL_DEEPDEBUG >= NSLOG_LEVEL_VERBOSE) { static
 nslog_entry_context_t _nslog_ctx = { &__nslog_category_dukky
, NSLOG_LEVEL_DEEPDEBUG, "content/handlers/javascript/duktape/dukky.c"
, sizeof("content/handlers/javascript/duktape/dukky.c") - 1, __PRETTY_FUNCTION__
, sizeof(__PRETTY_FUNCTION__) - 1, 932, }; nslog__log(&_nslog_ctx
, "Skipping exec call because thread is dead"); } } while(0);
933		return false0;
934	}
935 
936	dukky_enter_thread(thread);
937 
938	duk_set_top(CTX(thread->ctx), 0);
939	NSLOG(dukky, DEEPDEBUG, "Running %"PRIsizet" bytes from %s", txtlen, name)do { if (NSLOG_LEVEL_DEEPDEBUG >= NSLOG_LEVEL_VERBOSE) { static
 nslog_entry_context_t _nslog_ctx = { &__nslog_category_dukky
, NSLOG_LEVEL_DEEPDEBUG, "content/handlers/javascript/duktape/dukky.c"
, sizeof("content/handlers/javascript/duktape/dukky.c") - 1, __PRETTY_FUNCTION__
, sizeof(__PRETTY_FUNCTION__) - 1, 939, }; nslog__log(&_nslog_ctx
, "Running %""zu"" bytes from %s", txtlen, name); } } while(0
);
940	/* NSLOG(dukky, DEEPDEBUG, "\n%s\n", txt); */
941 
942	dukky_reset_start_time(CTX(thread->ctx));
943	if (name != NULL((void*)0)) {
944		duk_push_string(CTX(thread->ctx), name);
945	} else {
946		duk_push_string(CTX(thread->ctx), "?unknown source?");
947	}
948	if (duk_pcompile_lstring_filename(CTX,(duk_compile_raw(((thread->ctx)), (const char *)txt, txtlen
, 1 | ((1U << 3)) | (1U << 7) | (1U << 9)))
949					  DUK_COMPILE_EVAL,(duk_compile_raw(((thread->ctx)), (const char *)txt, txtlen
, 1 | ((1U << 3)) | (1U << 7) | (1U << 9)))
950					  (const char *)txt,(duk_compile_raw(((thread->ctx)), (const char *)txt, txtlen
, 1 | ((1U << 3)) | (1U << 7) | (1U << 9)))
951					  txtlen)(duk_compile_raw(((thread->ctx)), (const char *)txt, txtlen
, 1 | ((1U << 3)) | (1U << 7) | (1U << 9))) != 0) {
952		NSLOG(dukky, DEBUG, "Failed to compile JavaScript input")do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static
 nslog_entry_context_t _nslog_ctx = { &__nslog_category_dukky
, NSLOG_LEVEL_DEBUG, "content/handlers/javascript/duktape/dukky.c"
, sizeof("content/handlers/javascript/duktape/dukky.c") - 1, __PRETTY_FUNCTION__
, sizeof(__PRETTY_FUNCTION__) - 1, 952, }; nslog__log(&_nslog_ctx
, "Failed to compile JavaScript input"); } } while(0);
953		goto handle_error;
954	}
955 
956	if (duk_pcall(CTX(thread->ctx), 0/*nargs*/) == DUK_EXEC_ERROR1) {
957		NSLOG(dukky, DEBUG, "Failed to execute JavaScript")do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static
 nslog_entry_context_t _nslog_ctx = { &__nslog_category_dukky
, NSLOG_LEVEL_DEBUG, "content/handlers/javascript/duktape/dukky.c"
, sizeof("content/handlers/javascript/duktape/dukky.c") - 1, __PRETTY_FUNCTION__
, sizeof(__PRETTY_FUNCTION__) - 1, 957, }; nslog__log(&_nslog_ctx
, "Failed to execute JavaScript"); } } while(0);
958		goto handle_error;
959	}
960 
961	if (duk_get_top(CTX(thread->ctx)) == 0) duk_push_boolean(CTX(thread->ctx), false0);
962	NSLOG(dukky, DEEPDEBUG, "Returning %s",do { if (NSLOG_LEVEL_DEEPDEBUG >= NSLOG_LEVEL_VERBOSE) { static
 nslog_entry_context_t _nslog_ctx = { &__nslog_category_dukky
, NSLOG_LEVEL_DEEPDEBUG, "content/handlers/javascript/duktape/dukky.c"
, sizeof("content/handlers/javascript/duktape/dukky.c") - 1, __PRETTY_FUNCTION__
, sizeof(__PRETTY_FUNCTION__) - 1, 963, }; nslog__log(&_nslog_ctx
, "Returning %s", duk_get_boolean((thread->ctx), 0) ? "true"
 : "false"); } } while(0)
963	      duk_get_boolean(CTX, 0) ? "true" : "false")do { if (NSLOG_LEVEL_DEEPDEBUG >= NSLOG_LEVEL_VERBOSE) { static
 nslog_entry_context_t _nslog_ctx = { &__nslog_category_dukky
, NSLOG_LEVEL_DEEPDEBUG, "content/handlers/javascript/duktape/dukky.c"
, sizeof("content/handlers/javascript/duktape/dukky.c") - 1, __PRETTY_FUNCTION__
, sizeof(__PRETTY_FUNCTION__) - 1, 963, }; nslog__log(&_nslog_ctx
, "Returning %s", duk_get_boolean((thread->ctx), 0) ? "true"
 : "false"); } } while(0);
964	ret = duk_get_boolean(CTX(thread->ctx), 0);
965	goto out;
966 
967handle_error:
968	dukky_dump_error(CTX(thread->ctx));
969out:
970	dukky_leave_thread(thread);
971	return ret;
972}
973 
974static const char* dukky_event_proto(dom_event *evt)
975{
976	const char *ret = PROTO_NAME(EVENT)("\xFF\xFFNETSURF_DUKTAPE_" "PROTOTYPE_" "EVENT");
977	dom_string *type = NULL((void*)0);
978	dom_exception err;
979 
980	err = dom_event_get_type(evt, &type)_dom_event_get_type((dom_event *) (evt), (dom_string **) (&
type));
981	if (err != DOM_NO_ERR) {
982		goto out;
983	}
984 
985	if (dom_string_isequal(type, corestring_dom_keydown)) {
986		ret = PROTO_NAME(KEYBOARDEVENT)("\xFF\xFFNETSURF_DUKTAPE_" "PROTOTYPE_" "KEYBOARDEVENT");
987		goto out;
988	} else if (dom_string_isequal(type, corestring_dom_keyup)) {
989		ret = PROTO_NAME(KEYBOARDEVENT)("\xFF\xFFNETSURF_DUKTAPE_" "PROTOTYPE_" "KEYBOARDEVENT");
990		goto out;
991	} else if (dom_string_isequal(type, corestring_dom_keypress)) {
992		ret = PROTO_NAME(KEYBOARDEVENT)("\xFF\xFFNETSURF_DUKTAPE_" "PROTOTYPE_" "KEYBOARDEVENT");
993		goto out;
994	}
995 
996out:
997	if (type != NULL((void*)0)) {
998		dom_string_unref(type);
999	}
1000 
1001	return ret;
1002}
1003 
1004/*** New style event handling ***/
1005 
1006void dukky_push_event(duk_context *ctx, dom_event *evt)
1007{
1008	/* ... */
1009	duk_get_global_string(ctx, EVENT_MAGIC("\xFF\xFFNETSURF_DUKTAPE_" "EVENT_MAP"));
1010	/* ... events */
1011	duk_push_pointer(ctx, evt);
1012	/* ... events eventptr */
1013	duk_get_prop(ctx, -2);
1014	/* ... events event? */
1015	if (duk_is_undefined(ctx, -1)) {
1016		/* ... events undefined */
1017		duk_pop(ctx);
1018		/* ... events */
1019		duk_push_pointer(ctx, evt);
1020		if (dukky_create_object(ctx, dukky_event_proto(evt), 1) != DUK_EXEC_SUCCESS0) {
1021			/* ... events err */
1022			duk_pop(ctx);
1023			/* ... events */
1024			duk_push_object(ctx);
1025			/* ... events eobj[meh] */
1026		}
1027		/* ... events eobj */
1028		duk_push_pointer(ctx, evt);
1029		/* ... events eobj eventptr */
1030		duk_dup(ctx, -2);
1031		/* ... events eobj eventptr eobj */
1032		duk_put_prop(ctx, -4);
1033		/* ... events eobj */
1034	}
1035	/* ... events event */
1036	duk_replace(ctx, -2);
1037	/* ... event */
1038}
1039 
1040static void dukky_push_handler_code_(duk_context *ctx, dom_string *name,
1041				     dom_event_target *et)
1042{
1043	dom_string *onname, *val;
1044	dom_element *ele = (dom_element *)et;
1045	dom_exception exc;
1046	dom_node_type ntype;
1047 
1048	/* If et is NULL, then we're actually dealing with the Window object
1049	 * which has no default handlers and no way to assign handlers
1050	 * which aren't directly stored in the HANDLER_MAGIC
1051	 */
1052	if (et == NULL((void*)0)) {
1053		duk_push_lstring(ctx, "", 0);
1054		return;
1055	}
1056 
1057	/* The rest of this assumes et is a proper event target and expands
1058	 * out from there based on the assumption that all valid event targets
1059	 * are nodes.
1060	 */
1061	exc = dom_node_get_node_type(et, &ntype)dom_node_get_node_type( (dom_node *) (et), (dom_node_type *) (
&ntype));
1062	if (exc != DOM_NO_ERR) {
1063		duk_push_lstring(ctx, "", 0);
1064		return;
1065	}
1066 
1067	if (ntype != DOM_ELEMENT_NODE) {
1068		duk_push_lstring(ctx, "", 0);
1069		return;
1070	}
1071 
1072	exc = dom_string_concat(corestring_dom_on, name, &onname);
1073	if (exc != DOM_NO_ERR) {
1074		duk_push_lstring(ctx, "", 0);
1075		return;
1076	}
1077 
1078	exc = dom_element_get_attribute(ele, onname, &val)dom_element_get_attribute( (dom_element *) (ele), (onname), (
&val));
1079	if ((exc != DOM_NO_ERR) || (val == NULL((void*)0))) {
1080		dom_string_unref(onname);
1081		duk_push_lstring(ctx, "", 0);
1082		return;
1083	}
1084 
1085	dom_string_unref(onname);
1086	duk_push_lstring(ctx, dom_string_data(val), dom_string_length(val));
1087	dom_string_unref(val);
1088}
1089 
1090bool_Bool dukky_get_current_value_of_event_handler(duk_context *ctx,
1091					      dom_string *name,
1092					      dom_event_target *et)
1093{
1094	/* Must be entered as:
1095	 * ... node(et)
1096	 */
1097	duk_get_prop_string(ctx, -1, HANDLER_MAGIC("\xFF\xFFNETSURF_DUKTAPE_" "HANDLER_MAP"));
1098	/* ... node handlers */
1099	duk_push_lstring(ctx, dom_string_data(name), dom_string_length(name));
1100	/* ... node handlers name */
1101	duk_get_prop(ctx, -2);
1102	/* ... node handlers handler? */
1103	if (duk_is_undefined(ctx, -1)) {
1104		/* ... node handlers undefined */
1105		duk_pop_2(ctx);
1106		/* ... node */
1107		dukky_push_handler_code_(ctx, name, et);
1108		/* ... node handlercode? */
1109		/* TODO: If this is null, clean up and propagate */
1110		/* ... node handlercode */
1111		/** @todo This is entirely wrong, but it's hard to get right */
1112		duk_push_string(ctx, "function (event) {");
1113		/* ... node handlercode prefix */
1114		duk_insert(ctx, -2);
1115		/* ... node prefix handlercode */
1116		duk_push_string(ctx, "}");
1117		/* ... node prefix handlercode suffix */
1118		duk_concat(ctx, 3);
1119		/* ... node fullhandlersrc */
1120		duk_push_string(ctx, "internal raw uncompiled handler");
1121		/* ... node fullhandlersrc filename */
1122		if (duk_pcompile(ctx, DUK_COMPILE_FUNCTION)(duk_compile_raw((ctx), ((void*)0), 0, 2 | ((1U << 4)) |
 (1U << 7))) != 0) {
1123			/* ... node err */
1124			NSLOG(dukky, DEBUG,do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static
 nslog_entry_context_t _nslog_ctx = { &__nslog_category_dukky
, NSLOG_LEVEL_DEBUG, "content/handlers/javascript/duktape/dukky.c"
, sizeof("content/handlers/javascript/duktape/dukky.c") - 1, __PRETTY_FUNCTION__
, sizeof(__PRETTY_FUNCTION__) - 1, 1125, }; nslog__log(&_nslog_ctx
, "Unable to proceed with handler, could not compile"); } } while
(0)
1125			      "Unable to proceed with handler, could not compile")do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static
 nslog_entry_context_t _nslog_ctx = { &__nslog_category_dukky
, NSLOG_LEVEL_DEBUG, "content/handlers/javascript/duktape/dukky.c"
, sizeof("content/handlers/javascript/duktape/dukky.c") - 1, __PRETTY_FUNCTION__
, sizeof(__PRETTY_FUNCTION__) - 1, 1125, }; nslog__log(&_nslog_ctx
, "Unable to proceed with handler, could not compile"); } } while
(0);
1126			duk_pop_2(ctx);
1127			return false0;
1128		}
1129		/* ... node handler */
1130		duk_insert(ctx, -2);
1131		/* ... handler node */
1132	} else {
1133		/* ... node handlers handler */
1134		duk_insert(ctx, -3);
1135		/* ... handler node handlers */
1136		duk_pop(ctx);
1137		/* ... handler node */
1138	}
1139	/* ... handler node */
1140	return true1;
1141}
1142 
1143static void dukky_generic_event_handler(dom_event *evt, void *pw)
1144{
1145	duk_context *ctx = (duk_context *)pw;
1146	dom_string *name;
1147	dom_exception exc;
1148	dom_event_target *targ;
1149	dom_event_flow_phase phase;
1150	duk_uarridx_t idx;
1151	event_listener_flags flags;
1152 
1153	NSLOG(dukky, DEBUG, "Handling an event in duktape interface...")do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static
 nslog_entry_context_t _nslog_ctx = { &__nslog_category_dukky
, NSLOG_LEVEL_DEBUG, "content/handlers/javascript/duktape/dukky.c"
, sizeof("content/handlers/javascript/duktape/dukky.c") - 1, __PRETTY_FUNCTION__
, sizeof(__PRETTY_FUNCTION__) - 1, 1153, }; nslog__log(&_nslog_ctx
, "Handling an event in duktape interface..."); } } while(0);
1154	exc = dom_event_get_type(evt, &name)_dom_event_get_type((dom_event *) (evt), (dom_string **) (&
name));
1155	if (exc != DOM_NO_ERR) {
1156		NSLOG(dukky, DEBUG, "Unable to find the event name")do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static
 nslog_entry_context_t _nslog_ctx = { &__nslog_category_dukky
, NSLOG_LEVEL_DEBUG, "content/handlers/javascript/duktape/dukky.c"
, sizeof("content/handlers/javascript/duktape/dukky.c") - 1, __PRETTY_FUNCTION__
, sizeof(__PRETTY_FUNCTION__) - 1, 1156, }; nslog__log(&_nslog_ctx
, "Unable to find the event name"); } } while(0);
1157		return;
1158	}
1159	NSLOG(dukky, DEBUG, "Event's name is %*s", (int)dom_string_length(name),do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static
 nslog_entry_context_t _nslog_ctx = { &__nslog_category_dukky
, NSLOG_LEVEL_DEBUG, "content/handlers/javascript/duktape/dukky.c"
, sizeof("content/handlers/javascript/duktape/dukky.c") - 1, __PRETTY_FUNCTION__
, sizeof(__PRETTY_FUNCTION__) - 1, 1160, }; nslog__log(&_nslog_ctx
, "Event's name is %*s", (int)dom_string_length(name), dom_string_data
(name)); } } while(0)
1160	      dom_string_data(name))do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static
 nslog_entry_context_t _nslog_ctx = { &__nslog_category_dukky
, NSLOG_LEVEL_DEBUG, "content/handlers/javascript/duktape/dukky.c"
, sizeof("content/handlers/javascript/duktape/dukky.c") - 1, __PRETTY_FUNCTION__
, sizeof(__PRETTY_FUNCTION__) - 1, 1160, }; nslog__log(&_nslog_ctx
, "Event's name is %*s", (int)dom_string_length(name), dom_string_data
(name)); } } while(0);
1161	exc = dom_event_get_event_phase(evt, &phase)_dom_event_get_event_phase( (dom_event *) (evt), (dom_event_flow_phase
 *) (&phase));
1162	if (exc != DOM_NO_ERR) {
1163		NSLOG(dukky, WARNING, "Unable to get event phase")do { if (NSLOG_LEVEL_WARNING >= NSLOG_LEVEL_VERBOSE) { static
 nslog_entry_context_t _nslog_ctx = { &__nslog_category_dukky
, NSLOG_LEVEL_WARNING, "content/handlers/javascript/duktape/dukky.c"
, sizeof("content/handlers/javascript/duktape/dukky.c") - 1, __PRETTY_FUNCTION__
, sizeof(__PRETTY_FUNCTION__) - 1, 1163, }; nslog__log(&_nslog_ctx
, "Unable to get event phase"); } } while(0);
1164		return;
1165	}
1166	NSLOG(dukky, DEBUG, "Event phase is: %s (%d)",do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static
 nslog_entry_context_t _nslog_ctx = { &__nslog_category_dukky
, NSLOG_LEVEL_DEBUG, "content/handlers/javascript/duktape/dukky.c"
, sizeof("content/handlers/javascript/duktape/dukky.c") - 1, __PRETTY_FUNCTION__
, sizeof(__PRETTY_FUNCTION__) - 1, 1168, }; nslog__log(&_nslog_ctx
, "Event phase is: %s (%d)", phase == DOM_CAPTURING_PHASE ? "capturing"
 : phase == DOM_AT_TARGET ? "at-target" : phase == DOM_BUBBLING_PHASE
 ? "bubbling" : "unknown", (int)phase); } } while(0)
1167	      phase == DOM_CAPTURING_PHASE ? "capturing" : phase == DOM_AT_TARGET ? "at-target" : phase == DOM_BUBBLING_PHASE ? "bubbling" : "unknown",do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static
 nslog_entry_context_t _nslog_ctx = { &__nslog_category_dukky
, NSLOG_LEVEL_DEBUG, "content/handlers/javascript/duktape/dukky.c"
, sizeof("content/handlers/javascript/duktape/dukky.c") - 1, __PRETTY_FUNCTION__
, sizeof(__PRETTY_FUNCTION__) - 1, 1168, }; nslog__log(&_nslog_ctx
, "Event phase is: %s (%d)", phase == DOM_CAPTURING_PHASE ? "capturing"
 : phase == DOM_AT_TARGET ? "at-target" : phase == DOM_BUBBLING_PHASE
 ? "bubbling" : "unknown", (int)phase); } } while(0)
1168	      (int)phase)do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static
 nslog_entry_context_t _nslog_ctx = { &__nslog_category_dukky
, NSLOG_LEVEL_DEBUG, "content/handlers/javascript/duktape/dukky.c"
, sizeof("content/handlers/javascript/duktape/dukky.c") - 1, __PRETTY_FUNCTION__
, sizeof(__PRETTY_FUNCTION__) - 1, 1168, }; nslog__log(&_nslog_ctx
, "Event phase is: %s (%d)", phase == DOM_CAPTURING_PHASE ? "capturing"
 : phase == DOM_AT_TARGET ? "at-target" : phase == DOM_BUBBLING_PHASE
 ? "bubbling" : "unknown", (int)phase); } } while(0);
1169 
1170	exc = dom_event_get_current_target(evt, &targ)_dom_event_get_current_target( (dom_event *) (evt), (dom_event_target
 **) (&targ));
1171	if (exc != DOM_NO_ERR) {
1172		dom_string_unref(name);
1173		NSLOG(dukky, DEBUG, "Unable to find the event target")do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static
 nslog_entry_context_t _nslog_ctx = { &__nslog_category_dukky
, NSLOG_LEVEL_DEBUG, "content/handlers/javascript/duktape/dukky.c"
, sizeof("content/handlers/javascript/duktape/dukky.c") - 1, __PRETTY_FUNCTION__
, sizeof(__PRETTY_FUNCTION__) - 1, 1173, }; nslog__log(&_nslog_ctx
, "Unable to find the event target"); } } while(0);
1174		return;
1175	}
1176 
1177	/* If we're capturing right now, we skip the 'event handler'
1178	 * and go straight to the extras
1179	 */
1180	if (phase == DOM_CAPTURING_PHASE)
1181		goto handle_extras;
1182 
1183	/* ... */
1184	if (dukky_push_node(ctx, (dom_node *)targ) == false0) {
1185		dom_string_unref(name);
1186		dom_node_unref(targ)dom_node_unref((dom_node *) (targ));
1187		NSLOG(dukky, DEBUG,do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static
 nslog_entry_context_t _nslog_ctx = { &__nslog_category_dukky
, NSLOG_LEVEL_DEBUG, "content/handlers/javascript/duktape/dukky.c"
, sizeof("content/handlers/javascript/duktape/dukky.c") - 1, __PRETTY_FUNCTION__
, sizeof(__PRETTY_FUNCTION__) - 1, 1188, }; nslog__log(&_nslog_ctx
, "Unable to push JS node representation?!"); } } while(0)
1188		      "Unable to push JS node representation?!")do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static
 nslog_entry_context_t _nslog_ctx = { &__nslog_category_dukky
, NSLOG_LEVEL_DEBUG, "content/handlers/javascript/duktape/dukky.c"
, sizeof("content/handlers/javascript/duktape/dukky.c") - 1, __PRETTY_FUNCTION__
, sizeof(__PRETTY_FUNCTION__) - 1, 1188, }; nslog__log(&_nslog_ctx
, "Unable to push JS node representation?!"); } } while(0);
1189		return;
1190	}
1191	/* ... node */
1192	if (dukky_get_current_value_of_event_handler(
1193		    ctx, name, (dom_event_target *)targ) == false0) {
1194		/* ... */
1195		goto handle_extras;
1196	}
1197	/* ... handler node */
1198	dukky_push_event(ctx, evt);
1199	/* ... handler node event */
1200	dukky_reset_start_time(ctx);
1201	if (duk_pcall_method(ctx, 1) != 0) {
1202		/* Failed to run the method */
1203		/* ... err */
1204		NSLOG(dukky, DEBUG,do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static
 nslog_entry_context_t _nslog_ctx = { &__nslog_category_dukky
, NSLOG_LEVEL_DEBUG, "content/handlers/javascript/duktape/dukky.c"
, sizeof("content/handlers/javascript/duktape/dukky.c") - 1, __PRETTY_FUNCTION__
, sizeof(__PRETTY_FUNCTION__) - 1, 1205, }; nslog__log(&_nslog_ctx
, "OH NOES! An error running a callback.  Meh."); } } while(0
)
1205		      "OH NOES! An error running a callback.  Meh.")do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static
 nslog_entry_context_t _nslog_ctx = { &__nslog_category_dukky
, NSLOG_LEVEL_DEBUG, "content/handlers/javascript/duktape/dukky.c"
, sizeof("content/handlers/javascript/duktape/dukky.c") - 1, __PRETTY_FUNCTION__
, sizeof(__PRETTY_FUNCTION__) - 1, 1205, }; nslog__log(&_nslog_ctx
, "OH NOES! An error running a callback.  Meh."); } } while(0
);
1206		exc = dom_event_stop_immediate_propagation(evt)_dom_event_stop_immediate_propagation((dom_event *) (evt));
1207		if (exc != DOM_NO_ERR)
1208			NSLOG(dukky, DEBUG,do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static
 nslog_entry_context_t _nslog_ctx = { &__nslog_category_dukky
, NSLOG_LEVEL_DEBUG, "content/handlers/javascript/duktape/dukky.c"
, sizeof("content/handlers/javascript/duktape/dukky.c") - 1, __PRETTY_FUNCTION__
, sizeof(__PRETTY_FUNCTION__) - 1, 1209, }; nslog__log(&_nslog_ctx
, "WORSE! could not stop propagation"); } } while(0)
1209			      "WORSE! could not stop propagation")do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static
 nslog_entry_context_t _nslog_ctx = { &__nslog_category_dukky
, NSLOG_LEVEL_DEBUG, "content/handlers/javascript/duktape/dukky.c"
, sizeof("content/handlers/javascript/duktape/dukky.c") - 1, __PRETTY_FUNCTION__
, sizeof(__PRETTY_FUNCTION__) - 1, 1209, }; nslog__log(&_nslog_ctx
, "WORSE! could not stop propagation"); } } while(0);
1210		duk_get_prop_string(ctx, -1, "name");
1211		duk_get_prop_string(ctx, -2, "message");
1212		duk_get_prop_string(ctx, -3, "fileName");
1213		duk_get_prop_string(ctx, -4, "lineNumber");
1214		duk_get_prop_string(ctx, -5, "stack");
1215		/* ... err name message fileName lineNumber stack */
1216		NSLOG(dukky, DEBUG, "Uncaught error in JS: %s: %s",do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static
 nslog_entry_context_t _nslog_ctx = { &__nslog_category_dukky
, NSLOG_LEVEL_DEBUG, "content/handlers/javascript/duktape/dukky.c"
, sizeof("content/handlers/javascript/duktape/dukky.c") - 1, __PRETTY_FUNCTION__
, sizeof(__PRETTY_FUNCTION__) - 1, 1218, }; nslog__log(&_nslog_ctx
, "Uncaught error in JS: %s: %s", duk_safe_to_lstring((ctx), (
-5), ((void*)0)), duk_safe_to_lstring((ctx), (-4), ((void*)0)
)); } } while(0)
1217		      duk_safe_to_string(ctx, -5),do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static
 nslog_entry_context_t _nslog_ctx = { &__nslog_category_dukky
, NSLOG_LEVEL_DEBUG, "content/handlers/javascript/duktape/dukky.c"
, sizeof("content/handlers/javascript/duktape/dukky.c") - 1, __PRETTY_FUNCTION__
, sizeof(__PRETTY_FUNCTION__) - 1, 1218, }; nslog__log(&_nslog_ctx
, "Uncaught error in JS: %s: %s", duk_safe_to_lstring((ctx), (
-5), ((void*)0)), duk_safe_to_lstring((ctx), (-4), ((void*)0)
)); } } while(0)
1218		      duk_safe_to_string(ctx, -4))do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static
 nslog_entry_context_t _nslog_ctx = { &__nslog_category_dukky
, NSLOG_LEVEL_DEBUG, "content/handlers/javascript/duktape/dukky.c"
, sizeof("content/handlers/javascript/duktape/dukky.c") - 1, __PRETTY_FUNCTION__
, sizeof(__PRETTY_FUNCTION__) - 1, 1218, }; nslog__log(&_nslog_ctx
, "Uncaught error in JS: %s: %s", duk_safe_to_lstring((ctx), (
-5), ((void*)0)), duk_safe_to_lstring((ctx), (-4), ((void*)0)
)); } } while(0);
1219		NSLOG(dukky, INFO, "              was at: %s line %s",do { if (NSLOG_LEVEL_INFO >= NSLOG_LEVEL_VERBOSE) { static
 nslog_entry_context_t _nslog_ctx = { &__nslog_category_dukky
, NSLOG_LEVEL_INFO, "content/handlers/javascript/duktape/dukky.c"
, sizeof("content/handlers/javascript/duktape/dukky.c") - 1, __PRETTY_FUNCTION__
, sizeof(__PRETTY_FUNCTION__) - 1, 1221, }; nslog__log(&_nslog_ctx
, "              was at: %s line %s", duk_safe_to_lstring((ctx
), (-3), ((void*)0)), duk_safe_to_lstring((ctx), (-2), ((void
*)0))); } } while(0)
1220		      duk_safe_to_string(ctx, -3),do { if (NSLOG_LEVEL_INFO >= NSLOG_LEVEL_VERBOSE) { static
 nslog_entry_context_t _nslog_ctx = { &__nslog_category_dukky
, NSLOG_LEVEL_INFO, "content/handlers/javascript/duktape/dukky.c"
, sizeof("content/handlers/javascript/duktape/dukky.c") - 1, __PRETTY_FUNCTION__
, sizeof(__PRETTY_FUNCTION__) - 1, 1221, }; nslog__log(&_nslog_ctx
, "              was at: %s line %s", duk_safe_to_lstring((ctx
), (-3), ((void*)0)), duk_safe_to_lstring((ctx), (-2), ((void
*)0))); } } while(0)
1221		      duk_safe_to_string(ctx, -2))do { if (NSLOG_LEVEL_INFO >= NSLOG_LEVEL_VERBOSE) { static
 nslog_entry_context_t _nslog_ctx = { &__nslog_category_dukky
, NSLOG_LEVEL_INFO, "content/handlers/javascript/duktape/dukky.c"
, sizeof("content/handlers/javascript/duktape/dukky.c") - 1, __PRETTY_FUNCTION__
, sizeof(__PRETTY_FUNCTION__) - 1, 1221, }; nslog__log(&_nslog_ctx
, "              was at: %s line %s", duk_safe_to_lstring((ctx
), (-3), ((void*)0)), duk_safe_to_lstring((ctx), (-2), ((void
*)0))); } } while(0);
1222		NSLOG(dukky, INFO, "         Stack trace: %s",do { if (NSLOG_LEVEL_INFO >= NSLOG_LEVEL_VERBOSE) { static
 nslog_entry_context_t _nslog_ctx = { &__nslog_category_dukky
, NSLOG_LEVEL_INFO, "content/handlers/javascript/duktape/dukky.c"
, sizeof("content/handlers/javascript/duktape/dukky.c") - 1, __PRETTY_FUNCTION__
, sizeof(__PRETTY_FUNCTION__) - 1, 1223, }; nslog__log(&_nslog_ctx
, "         Stack trace: %s", duk_safe_to_lstring((ctx), (-1)
, ((void*)0))); } } while(0)
1223		      duk_safe_to_string(ctx, -1))do { if (NSLOG_LEVEL_INFO >= NSLOG_LEVEL_VERBOSE) { static
 nslog_entry_context_t _nslog_ctx = { &__nslog_category_dukky
, NSLOG_LEVEL_INFO, "content/handlers/javascript/duktape/dukky.c"
, sizeof("content/handlers/javascript/duktape/dukky.c") - 1, __PRETTY_FUNCTION__
, sizeof(__PRETTY_FUNCTION__) - 1, 1223, }; nslog__log(&_nslog_ctx
, "         Stack trace: %s", duk_safe_to_lstring((ctx), (-1)
, ((void*)0))); } } while(0);
1224 
1225		duk_pop_n(ctx, 6);
1226		/* ... */
1227		goto handle_extras;
1228	}
1229	/* ... result */
1230	if (duk_is_boolean(ctx, -1) &&
1231	    duk_to_boolean(ctx, -1) == 0) {
1232		dom_event_prevent_default(evt)_dom_event_prevent_default( (dom_event *) (evt));
1233	}
1234	duk_pop(ctx);
1235handle_extras:
1236	/* ... */
1237	duk_push_lstring(ctx, dom_string_data(name), dom_string_length(name));
1238	dukky_push_node(ctx, (dom_node *)targ);
1239	/* ... type node */
1240	if (dukky_event_target_push_listeners(ctx, true1)) {
1241		/* Nothing to do */
1242		duk_pop(ctx);
1243		goto out;
1244	}
1245	/* ... sublisteners */
1246	duk_push_array(ctx);
1247	/* ... sublisteners copy */
1248	idx = 0;
1249	while (duk_get_prop_index(ctx, -2, idx)) {
1250		/* ... sublisteners copy handler */
1251		duk_get_prop_index(ctx, -1, 1);
1252		/* ... sublisteners copy handler flags */
1253		if ((event_listener_flags)duk_to_int(ctx, -1) & ELF_ONCE) {
1254			duk_dup(ctx, -4);
1255			/* ... subl copy handler flags subl */
1256			dukky_shuffle_array(ctx, idx);
1257			duk_pop(ctx);
1258			/* ... subl copy handler flags */
1259		}
1260		duk_pop(ctx);
1261		/* ... sublisteners copy handler */
1262		duk_put_prop_index(ctx, -2, idx);
1263		/* ... sublisteners copy */
1264		idx++;
1265	}
1266	/* ... sublisteners copy undefined */
1267	duk_pop(ctx);
1268	/* ... sublisteners copy */
1269	duk_insert(ctx, -2);
1270	/* ... copy sublisteners */
1271	duk_pop(ctx);
1272	/* ... copy */
1273	idx = 0;
1274	while (duk_get_prop_index(ctx, -1, idx++)) {
1275		/* ... copy handler */
1276		if (duk_get_prop_index(ctx, -1, 2)) {
1277			/* ... copy handler meh */
1278			duk_pop_2(ctx);
1279			continue;
1280		}
1281		duk_pop(ctx);
1282		duk_get_prop_index(ctx, -1, 0);
1283		duk_get_prop_index(ctx, -2, 1);
1284		/* ... copy handler callback flags */
1285		flags = (event_listener_flags)duk_get_int(ctx, -1);
1286		duk_pop(ctx);
1287		/* ... copy handler callback */
1288		if (((phase == DOM_CAPTURING_PHASE) && !(flags & ELF_CAPTURE)) ||
1289		    ((phase != DOM_CAPTURING_PHASE) && (flags & ELF_CAPTURE))) {
1290			duk_pop_2(ctx);
1291			/* ... copy */
1292			continue;
1293		}
1294		/* ... copy handler callback */
1295		dukky_push_node(ctx, (dom_node *)targ);
1296		/* ... copy handler callback node */
1297		dukky_push_event(ctx, evt);
1298		/* ... copy handler callback node event */
1299		dukky_reset_start_time(ctx);
1300		if (duk_pcall_method(ctx, 1) != 0) {
1301			/* Failed to run the method */
1302			/* ... copy handler err */
1303			NSLOG(dukky, DEBUG,do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static
 nslog_entry_context_t _nslog_ctx = { &__nslog_category_dukky
, NSLOG_LEVEL_DEBUG, "content/handlers/javascript/duktape/dukky.c"
, sizeof("content/handlers/javascript/duktape/dukky.c") - 1, __PRETTY_FUNCTION__
, sizeof(__PRETTY_FUNCTION__) - 1, 1304, }; nslog__log(&_nslog_ctx
, "OH NOES! An error running a callback.  Meh."); } } while(0
)
1304			      "OH NOES! An error running a callback.  Meh.")do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static
 nslog_entry_context_t _nslog_ctx = { &__nslog_category_dukky
, NSLOG_LEVEL_DEBUG, "content/handlers/javascript/duktape/dukky.c"
, sizeof("content/handlers/javascript/duktape/dukky.c") - 1, __PRETTY_FUNCTION__
, sizeof(__PRETTY_FUNCTION__) - 1, 1304, }; nslog__log(&_nslog_ctx
, "OH NOES! An error running a callback.  Meh."); } } while(0
);
1305			exc = dom_event_stop_immediate_propagation(evt)_dom_event_stop_immediate_propagation((dom_event *) (evt));
1306			if (exc != DOM_NO_ERR)
1307				NSLOG(dukky, DEBUG,do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static
 nslog_entry_context_t _nslog_ctx = { &__nslog_category_dukky
, NSLOG_LEVEL_DEBUG, "content/handlers/javascript/duktape/dukky.c"
, sizeof("content/handlers/javascript/duktape/dukky.c") - 1, __PRETTY_FUNCTION__
, sizeof(__PRETTY_FUNCTION__) - 1, 1308, }; nslog__log(&_nslog_ctx
, "WORSE! could not stop propagation"); } } while(0)
1308				      "WORSE! could not stop propagation")do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static
 nslog_entry_context_t _nslog_ctx = { &__nslog_category_dukky
, NSLOG_LEVEL_DEBUG, "content/handlers/javascript/duktape/dukky.c"
, sizeof("content/handlers/javascript/duktape/dukky.c") - 1, __PRETTY_FUNCTION__
, sizeof(__PRETTY_FUNCTION__) - 1, 1308, }; nslog__log(&_nslog_ctx
, "WORSE! could not stop propagation"); } } while(0);
1309			duk_get_prop_string(ctx, -1, "name");
1310			duk_get_prop_string(ctx, -2, "message");
1311			duk_get_prop_string(ctx, -3, "fileName");
1312			duk_get_prop_string(ctx, -4, "lineNumber");
1313			duk_get_prop_string(ctx, -5, "stack");
1314			/* ... err name message fileName lineNumber stack */
1315			NSLOG(dukky, DEBUG, "Uncaught error in JS: %s: %s",do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static
 nslog_entry_context_t _nslog_ctx = { &__nslog_category_dukky
, NSLOG_LEVEL_DEBUG, "content/handlers/javascript/duktape/dukky.c"
, sizeof("content/handlers/javascript/duktape/dukky.c") - 1, __PRETTY_FUNCTION__
, sizeof(__PRETTY_FUNCTION__) - 1, 1317, }; nslog__log(&_nslog_ctx
, "Uncaught error in JS: %s: %s", duk_safe_to_lstring((ctx), (
-5), ((void*)0)), duk_safe_to_lstring((ctx), (-4), ((void*)0)
)); } } while(0)
1316			      duk_safe_to_string(ctx, -5),do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static
 nslog_entry_context_t _nslog_ctx = { &__nslog_category_dukky
, NSLOG_LEVEL_DEBUG, "content/handlers/javascript/duktape/dukky.c"
, sizeof("content/handlers/javascript/duktape/dukky.c") - 1, __PRETTY_FUNCTION__
, sizeof(__PRETTY_FUNCTION__) - 1, 1317, }; nslog__log(&_nslog_ctx
, "Uncaught error in JS: %s: %s", duk_safe_to_lstring((ctx), (
-5), ((void*)0)), duk_safe_to_lstring((ctx), (-4), ((void*)0)
)); } } while(0)
1317			      duk_safe_to_string(ctx, -4))do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static
 nslog_entry_context_t _nslog_ctx = { &__nslog_category_dukky
, NSLOG_LEVEL_DEBUG, "content/handlers/javascript/duktape/dukky.c"
, sizeof("content/handlers/javascript/duktape/dukky.c") - 1, __PRETTY_FUNCTION__
, sizeof(__PRETTY_FUNCTION__) - 1, 1317, }; nslog__log(&_nslog_ctx
, "Uncaught error in JS: %s: %s", duk_safe_to_lstring((ctx), (
-5), ((void*)0)), duk_safe_to_lstring((ctx), (-4), ((void*)0)
)); } } while(0);
1318			NSLOG(dukky, DEBUG,do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static
 nslog_entry_context_t _nslog_ctx = { &__nslog_category_dukky
, NSLOG_LEVEL_DEBUG, "content/handlers/javascript/duktape/dukky.c"
, sizeof("content/handlers/javascript/duktape/dukky.c") - 1, __PRETTY_FUNCTION__
, sizeof(__PRETTY_FUNCTION__) - 1, 1321, }; nslog__log(&_nslog_ctx
, "              was at: %s line %s", duk_safe_to_lstring((ctx
), (-3), ((void*)0)), duk_safe_to_lstring((ctx), (-2), ((void
*)0))); } } while(0)
1319			      "              was at: %s line %s",do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static
 nslog_entry_context_t _nslog_ctx = { &__nslog_category_dukky
, NSLOG_LEVEL_DEBUG, "content/handlers/javascript/duktape/dukky.c"
, sizeof("content/handlers/javascript/duktape/dukky.c") - 1, __PRETTY_FUNCTION__
, sizeof(__PRETTY_FUNCTION__) - 1, 1321, }; nslog__log(&_nslog_ctx
, "              was at: %s line %s", duk_safe_to_lstring((ctx
), (-3), ((void*)0)), duk_safe_to_lstring((ctx), (-2), ((void
*)0))); } } while(0)
1320			      duk_safe_to_string(ctx, -3),do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static
 nslog_entry_context_t _nslog_ctx = { &__nslog_category_dukky
, NSLOG_LEVEL_DEBUG, "content/handlers/javascript/duktape/dukky.c"
, sizeof("content/handlers/javascript/duktape/dukky.c") - 1, __PRETTY_FUNCTION__
, sizeof(__PRETTY_FUNCTION__) - 1, 1321, }; nslog__log(&_nslog_ctx
, "              was at: %s line %s", duk_safe_to_lstring((ctx
), (-3), ((void*)0)), duk_safe_to_lstring((ctx), (-2), ((void
*)0))); } } while(0)
1321			      duk_safe_to_string(ctx, -2))do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static
 nslog_entry_context_t _nslog_ctx = { &__nslog_category_dukky
, NSLOG_LEVEL_DEBUG, "content/handlers/javascript/duktape/dukky.c"
, sizeof("content/handlers/javascript/duktape/dukky.c") - 1, __PRETTY_FUNCTION__
, sizeof(__PRETTY_FUNCTION__) - 1, 1321, }; nslog__log(&_nslog_ctx
, "              was at: %s line %s", duk_safe_to_lstring((ctx
), (-3), ((void*)0)), duk_safe_to_lstring((ctx), (-2), ((void
*)0))); } } while(0);
1322			NSLOG(dukky, DEBUG, "         Stack trace: %s",do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static
 nslog_entry_context_t _nslog_ctx = { &__nslog_category_dukky
, NSLOG_LEVEL_DEBUG, "content/handlers/javascript/duktape/dukky.c"
, sizeof("content/handlers/javascript/duktape/dukky.c") - 1, __PRETTY_FUNCTION__
, sizeof(__PRETTY_FUNCTION__) - 1, 1323, }; nslog__log(&_nslog_ctx
, "         Stack trace: %s", duk_safe_to_lstring((ctx), (-1)
, ((void*)0))); } } while(0)
1323			      duk_safe_to_string(ctx, -1))do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static
 nslog_entry_context_t _nslog_ctx = { &__nslog_category_dukky
, NSLOG_LEVEL_DEBUG, "content/handlers/javascript/duktape/dukky.c"
, sizeof("content/handlers/javascript/duktape/dukky.c") - 1, __PRETTY_FUNCTION__
, sizeof(__PRETTY_FUNCTION__) - 1, 1323, }; nslog__log(&_nslog_ctx
, "         Stack trace: %s", duk_safe_to_lstring((ctx), (-1)
, ((void*)0))); } } while(0);
1324 
1325			duk_pop_n(ctx, 7);
1326			/* ... copy */
1327			continue;
1328		}
1329		/* ... copy handler result */
1330		if (duk_is_boolean(ctx, -1) &&
1331		    duk_to_boolean(ctx, -1) == 0) {
1332			dom_event_prevent_default(evt)_dom_event_prevent_default( (dom_event *) (evt));
1333		}
1334		duk_pop_2(ctx);
1335		/* ... copy */
1336	}
1337	duk_pop_2(ctx);
1338out:
1339	/* ... */
1340	dom_node_unref(targ)dom_node_unref((dom_node *) (targ));
1341	dom_string_unref(name);
1342}
1343 
1344void dukky_register_event_listener_for(duk_context *ctx,
1345				       struct dom_element *ele,
1346				       dom_string *name,
1347				       bool_Bool capture)
1348{
1349	dom_event_listener *listen = NULL((void*)0);
1350	dom_exception exc;
1351 
1352	/* ... */
1353	if (ele == NULL((void*)0)) {
1354		/* A null element is the Window object */
1355		duk_push_global_object(ctx);
1356	} else {
1357		/* Non null elements must be pushed as a node object */
1358		if (dukky_push_node(ctx, (struct dom_node *)ele) == false0)
1359			return;
1360	}
1361	/* ... node */
1362	duk_get_prop_string(ctx, -1, HANDLER_LISTENER_MAGIC("\xFF\xFFNETSURF_DUKTAPE_" "HANDLER_LISTENER_MAP"));
1363	/* ... node handlers */
1364	duk_push_lstring(ctx, dom_string_data(name), dom_string_length(name));
1365	/* ... node handlers name */
1366	if (duk_has_prop(ctx, -2)) {
1367		/* ... node handlers */
1368		duk_pop_2(ctx);
1369		/* ... */
1370		return;
1371	}
1372	/* ... node handlers */
1373	duk_push_lstring(ctx, dom_string_data(name), dom_string_length(name));
1374	/* ... node handlers name */
1375	duk_push_boolean(ctx, true1);
1376	/* ... node handlers name true */
1377	duk_put_prop(ctx, -3);
1378	/* ... node handlers */
1379	duk_pop_2(ctx);
1380	/* ... */
1381	if (ele == NULL((void*)0)) {
1382		/* Nothing more to do, Window doesn't register in the
1383		 * normal event listener flow
1384		 */
1385		return;
1386	}
1387 
1388	/* Otherwise add an event listener to the element */
1389	exc = dom_event_listener_create(dukky_generic_event_handler, ctx,
1390					&listen);
1391	if (exc != DOM_NO_ERR) return;
1392	exc = dom_event_target_add_event_listener(dom_event_target_add_event_listener((dom_event_target *) (ele
), (dom_string *) (name), (struct dom_event_listener *) (listen
), (_Bool) (capture))
1393		ele, name, listen, capture)dom_event_target_add_event_listener((dom_event_target *) (ele
), (dom_string *) (name), (struct dom_event_listener *) (listen
), (_Bool) (capture));
1394	if (exc != DOM_NO_ERR) {
1395		NSLOG(dukky, DEBUG,do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static
 nslog_entry_context_t _nslog_ctx = { &__nslog_category_dukky
, NSLOG_LEVEL_DEBUG, "content/handlers/javascript/duktape/dukky.c"
, sizeof("content/handlers/javascript/duktape/dukky.c") - 1, __PRETTY_FUNCTION__
, sizeof(__PRETTY_FUNCTION__) - 1, 1397, }; nslog__log(&_nslog_ctx
, "Unable to register listener for %p.%*s", ele, (int)dom_string_length
(name), dom_string_data(name)); } } while(0)
1396		      "Unable to register listener for %p.%*s", ele,do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static
 nslog_entry_context_t _nslog_ctx = { &__nslog_category_dukky
, NSLOG_LEVEL_DEBUG, "content/handlers/javascript/duktape/dukky.c"
, sizeof("content/handlers/javascript/duktape/dukky.c") - 1, __PRETTY_FUNCTION__
, sizeof(__PRETTY_FUNCTION__) - 1, 1397, }; nslog__log(&_nslog_ctx
, "Unable to register listener for %p.%*s", ele, (int)dom_string_length
(name), dom_string_data(name)); } } while(0)
1397		      (int)dom_string_length(name), dom_string_data(name))do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static
 nslog_entry_context_t _nslog_ctx = { &__nslog_category_dukky
, NSLOG_LEVEL_DEBUG, "content/handlers/javascript/duktape/dukky.c"
, sizeof("content/handlers/javascript/duktape/dukky.c") - 1, __PRETTY_FUNCTION__
, sizeof(__PRETTY_FUNCTION__) - 1, 1397, }; nslog__log(&_nslog_ctx
, "Unable to register listener for %p.%*s", ele, (int)dom_string_length
(name), dom_string_data(name)); } } while(0);
1398	} else {
1399		NSLOG(dukky, DEBUG, "have registered listener for %p.%*s",do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static
 nslog_entry_context_t _nslog_ctx = { &__nslog_category_dukky
, NSLOG_LEVEL_DEBUG, "content/handlers/javascript/duktape/dukky.c"
, sizeof("content/handlers/javascript/duktape/dukky.c") - 1, __PRETTY_FUNCTION__
, sizeof(__PRETTY_FUNCTION__) - 1, 1400, }; nslog__log(&_nslog_ctx
, "have registered listener for %p.%*s", ele, (int)dom_string_length
(name), dom_string_data(name)); } } while(0)
1400		      ele, (int)dom_string_length(name), dom_string_data(name))do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static
 nslog_entry_context_t _nslog_ctx = { &__nslog_category_dukky
, NSLOG_LEVEL_DEBUG, "content/handlers/javascript/duktape/dukky.c"
, sizeof("content/handlers/javascript/duktape/dukky.c") - 1, __PRETTY_FUNCTION__
, sizeof(__PRETTY_FUNCTION__) - 1, 1400, }; nslog__log(&_nslog_ctx
, "have registered listener for %p.%*s", ele, (int)dom_string_length
(name), dom_string_data(name)); } } while(0);
1401	}
1402	dom_event_listener_unref(listen);
1403}
1404 
1405/* The sub-listeners are a list of {callback,flags} tuples */
1406/* We return true if we created a new sublistener table */
1407/* If we're told to not create, but we want to, we still return true */
1408bool_Bool dukky_event_target_push_listeners(duk_context *ctx, bool_Bool dont_create)
1409{
1410	bool_Bool ret = false0;
1411	/* ... type this */
1412	duk_get_prop_string(ctx, -1, EVENT_LISTENER_JS_MAGIC("\xFF\xFFNETSURF_DUKTAPE_" "EVENT_LISTENER_JS_MAP"));
1413	if (duk_is_undefined(ctx, -1)) {
1414		/* ... type this null */
1415		duk_pop(ctx);
1416		duk_push_object(ctx);
1417		duk_dup(ctx, -1);
1418		/* ... type this listeners listeners */
1419		duk_put_prop_string(ctx, -3, EVENT_LISTENER_JS_MAGIC("\xFF\xFFNETSURF_DUKTAPE_" "EVENT_LISTENER_JS_MAP"));
1420		/* ... type this listeners */
1421	}
1422	/* ... type this listeners */
1423	duk_insert(ctx, -3);
1424	/* ... listeners type this */
1425	duk_pop(ctx);
1426	/* ... listeners type */
1427	duk_dup(ctx, -1);
1428	/* ... listeners type type */
1429	duk_get_prop(ctx, -3);
1430	/* ... listeners type ??? */
1431	if (duk_is_undefined(ctx, -1)) {
1432		/* ... listeners type ??? */
1433		if (dont_create == true1) {
1434			duk_pop_3(ctx);
1435			duk_push_undefined(ctx);
1436			return true1;
1437		}
1438		duk_pop(ctx);
1439		duk_push_array(ctx);
1440		duk_dup(ctx, -2);
1441		duk_dup(ctx, -2);
1442		/* ... listeners type sublisteners type sublisteners */
1443		duk_put_prop(ctx, -5);
1444		/* ... listeners type sublisteners */
1445		ret = true1;
1446	}
1447	duk_insert(ctx, -3);
1448	/* ... sublisteners listeners type */
1449	duk_pop_2(ctx);
1450	/* ... sublisteners */
1451	return ret;
1452}
1453 
1454/* Shuffle a duktape array "down" one.  This involves iterating from
1455 * the index provided, shuffling elements down, until we reach an
1456 * undefined
1457 */
1458void dukky_shuffle_array(duk_context *ctx, duk_uarridx_t idx)
1459{
1460	/* ... somearr */
1461	while (duk_get_prop_index(ctx, -1, idx + 1)) {
1462		duk_put_prop_index(ctx, -2, idx);
1463		idx++;
1464	}
1465	/* ... somearr undefined */
1466	duk_del_prop_index(ctx, -2, idx + 1);
1467	duk_pop(ctx);
1468}
1469 
1470 
1471void js_handle_new_element(jsthread *thread, struct dom_element *node)
1472{
1473	assert(thread)((thread) ? (void) (0) : __assert_fail ("thread", "content/handlers/javascript/duktape/dukky.c"
, 1473, __extension__ __PRETTY_FUNCTION__));
1474	assert(node)((node) ? (void) (0) : __assert_fail ("node", "content/handlers/javascript/duktape/dukky.c"
, 1474, __extension__ __PRETTY_FUNCTION__));
1475	dom_namednodemap *map;
1476	dom_exception exc;
1477	dom_ulong idx;
1478	dom_ulong siz;
1479	dom_attr *attr = NULL((void*)0);
1480	dom_string *key = NULL((void*)0);
1481	dom_string *nodename;
1482	duk_bool_t is_body = false0;
1483 
1484	exc = dom_node_get_node_name(node, &nodename)dom_node_get_node_name((dom_node *) (node), (&nodename));
1485	if (exc != DOM_NO_ERR) return;
1486 
1487	if (nodename == corestring_dom_BODY)
1488		is_body = true1;
1489 
1490	dom_string_unref(nodename);
1491 
1492	exc = dom_node_get_attributes(node, &map)dom_node_get_attributes( (dom_node *) (node), (struct dom_namednodemap
 **) (&map));
1493	if (exc != DOM_NO_ERR) return;
1494	if (map == NULL((void*)0)) return;
1495 
1496	dukky_enter_thread(thread);
1497 
1498	exc = dom_namednodemap_get_length(map, &siz);
1499	if (exc != DOM_NO_ERR) goto out;
1500 
1501	for (idx = 0; idx < siz; idx++) {
1502		exc = dom_namednodemap_item(map, idx, &attr)_dom_namednodemap_item( (dom_namednodemap *) (map), (uint32_t
) (idx), (dom_node **) (&attr));
1503		if (exc != DOM_NO_ERR) goto out;
1504		exc = dom_attr_get_name(attr, &key)dom_attr_get_name((struct dom_attr *) (attr), (&key));
1505		if (exc != DOM_NO_ERR) goto out;
1506		if (is_body && (
1507			    key == corestring_dom_onblur ||
1508			    key == corestring_dom_onerror ||
1509			    key == corestring_dom_onfocus ||
1510			    key == corestring_dom_onload ||
1511			    key == corestring_dom_onresize ||
1512			    key == corestring_dom_onscroll)) {
1513			/* This is a forwarded event, it doesn't matter,
1514			 * we should skip registering for it and later
1515			 * we will register it for Window itself
1516			 */
1517			goto skip_register;
1518		}
1519		if (dom_string_length(key) > 2) {
1520			/* Can be on* */
1521			const uint8_t *data = (const uint8_t *)dom_string_data(key);
1522			if (data[0] == 'o' && data[1] == 'n') {
1523				dom_string *sub = NULL((void*)0);
1524				exc = dom_string_substr(
1525					key, 2, dom_string_length(key),
1526					&sub);
1527				if (exc == DOM_NO_ERR) {
1528					dukky_register_event_listener_for(
1529						CTX(thread->ctx), node, sub, false0);
1530					dom_string_unref(sub);
1531				}
1532			}
1533		}
1534	skip_register:
1535		dom_string_unref(key); key = NULL((void*)0);
1536		dom_node_unref(attr)dom_node_unref((dom_node *) (attr)); attr = NULL((void*)0);
1537	}
1538 
1539out:
1540	if (key != NULL((void*)0))
1541		dom_string_unref(key);
1542 
1543	if (attr != NULL((void*)0))
1544		dom_node_unref(attr)dom_node_unref((dom_node *) (attr));
1545 
1546	dom_namednodemap_unref(map);
1547 
1548	dukky_leave_thread(thread);
1549}
1550 
1551void js_event_cleanup(jsthread *thread, struct dom_event *evt)
1552{
1553	assert(thread)((thread) ? (void) (0) : __assert_fail ("thread", "content/handlers/javascript/duktape/dukky.c"
, 1553, __extension__ __PRETTY_FUNCTION__));
27
←
'?' condition is true→
1554	dukky_enter_thread(thread);
1555	/* ... */
1556	duk_get_global_string(CTX(thread->ctx), EVENT_MAGIC("\xFF\xFFNETSURF_DUKTAPE_" "EVENT_MAP"));
1557	/* ... EVENT_MAP */
1558	duk_push_pointer(CTX(thread->ctx), evt);
1559	/* ... EVENT_MAP eventptr */
1560	duk_del_prop(CTX(thread->ctx), -2);
1561	/* ... EVENT_MAP */
1562	duk_pop(CTX(thread->ctx));
1563	/* ... */
1564	dukky_leave_thread(thread);
28
←
Calling 'dukky_leave_thread'→
43
←
Returning; memory was released via 1st parameter→
1565}
1566 
1567bool_Bool js_fire_event(jsthread *thread, const char *type, struct dom_document *doc, struct dom_node *target)
1568{
1569	dom_exception exc;
1570	dom_event *evt;
1571	dom_event_target *body;
1572 
1573	NSLOG(dukky, DEBUG, "Event: %s (doc=%p, target=%p)", type, doc,do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static
 nslog_entry_context_t _nslog_ctx = { &__nslog_category_dukky
, NSLOG_LEVEL_DEBUG, "content/handlers/javascript/duktape/dukky.c"
, sizeof("content/handlers/javascript/duktape/dukky.c") - 1, __PRETTY_FUNCTION__
, sizeof(__PRETTY_FUNCTION__) - 1, 1574, }; nslog__log(&_nslog_ctx
, "Event: %s (doc=%p, target=%p)", type, doc, target); } } while
(0)
1
Taking false branch→
2
←
Loop condition is false.  Exiting loop→
1574	      target)do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static
 nslog_entry_context_t _nslog_ctx = { &__nslog_category_dukky
, NSLOG_LEVEL_DEBUG, "content/handlers/javascript/duktape/dukky.c"
, sizeof("content/handlers/javascript/duktape/dukky.c") - 1, __PRETTY_FUNCTION__
, sizeof(__PRETTY_FUNCTION__) - 1, 1574, }; nslog__log(&_nslog_ctx
, "Event: %s (doc=%p, target=%p)", type, doc, target); } } while
(0);
1575 
1576	/** @todo Make this more generic, this only handles load and only
1577	 * targetting the window, so that we actually stand a chance of
1578	 * getting 3.4 out.
1579	 */
1580 
1581	if (target != NULL((void*)0))
3
←
Assuming 'target' is equal to NULL→
4
←
Taking false branch→
1582		/* Swallow non-Window-targetted events quietly */
1583		return true1;
1584 
1585	if (strcmp(type, "load") != 0)
5
←
Taking false branch→
1586		/* Swallow non-load events quietly */
1587		return true1;
1588 
1589	/* Okay, we're processing load, targetted at Window, do the single
1590	 * thing which gets us there, which is to find the appropriate event
1591	 * handler and call it.  If we have no event handler on Window then
1592	 * we divert to the body, and if there's no event handler there
1593	 * we swallow the event silently
1594	 */
1595 
1596	exc = dom_event_create(&evt)_dom_event_create((dom_event **) (&evt));
1597	if (exc != DOM_NO_ERR) return true1;
6
←
Assuming 'exc' is equal to DOM_NO_ERR→
7
←
Taking false branch→
1598	exc = dom_event_init(evt, corestring_dom_load, false, false)_dom_event_init((dom_event *) (evt), (dom_string *) (corestring_dom_load
), (_Bool) (0), (_Bool) (0));
1599	if (exc != DOM_NO_ERR) {
8
←
Assuming 'exc' is equal to DOM_NO_ERR→
9
←
Taking false branch→
1600		dom_event_unref(evt)_dom_event_unref((dom_event *) (evt));
1601		return true1;
1602	}
1603	dukky_enter_thread(thread);
10
←
Calling 'dukky_enter_thread'→
13
←
Returning from 'dukky_enter_thread'→
1604	/* ... */
1605	duk_get_global_string(CTX(thread->ctx), HANDLER_MAGIC("\xFF\xFFNETSURF_DUKTAPE_" "HANDLER_MAP"));
1606	/* ... handlers */
1607	duk_push_lstring(CTX(thread->ctx), "load", 4);
1608	/* ... handlers "load" */
1609	duk_get_prop(CTX(thread->ctx), -2);
1610	/* ... handlers handler? */
1611	if (duk_is_undefined(CTX(thread->ctx), -1)) {
14
←
Assuming the condition is false→
15
←
Taking false branch→
1612		/* No handler here, *try* and retrieve a handler from
1613		 * the body
1614		 */
1615		duk_pop(CTX(thread->ctx));
1616		/* ... handlers */
1617		exc = dom_html_document_get_body(doc, &body)dom_html_document_get_body((dom_html_document *) (doc), (struct
 dom_html_element **) (&body));
1618		if (exc != DOM_NO_ERR) {
1619			dom_event_unref(evt)_dom_event_unref((dom_event *) (evt));
1620			dukky_leave_thread(thread);
1621			return true1;
1622		}
1623		dukky_push_node(CTX(thread->ctx), (struct dom_node *)body);
1624		/* ... handlers bodynode */
1625		if (dukky_get_current_value_of_event_handler(
1626			    CTX(thread->ctx), corestring_dom_load, body) == false0) {
1627			/* Unref the body, we don't need it any more */
1628			dom_node_unref(body)dom_node_unref((dom_node *) (body));
1629			/* ... handlers */
1630			duk_pop(CTX(thread->ctx));
1631			dukky_leave_thread(thread);
1632			return true1;
1633		}
1634		/* Unref the body, we don't need it any more */
1635		dom_node_unref(body)dom_node_unref((dom_node *) (body));
1636		/* ... handlers handler bodynode */
1637		duk_pop(CTX(thread->ctx));
1638	}
1639	/* ... handlers handler */
1640	duk_insert(CTX(thread->ctx), -2);
1641	/* ... handler handlers */
1642	duk_pop(CTX(thread->ctx));
1643	/* ... handler */
1644	duk_push_global_object(CTX(thread->ctx));
1645	/* ... handler Window */
1646	dukky_push_event(CTX(thread->ctx), evt);
1647	/* ... handler Window event */
1648	dukky_reset_start_time(CTX(thread->ctx));
1649	if (duk_pcall_method(CTX(thread->ctx), 1) != 0) {
16
←
Assuming the condition is true→
17
←
Taking true branch→
1650		/* Failed to run the handler */
1651		/* ... err */
1652		NSLOG(dukky, DEBUG,do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static
 nslog_entry_context_t _nslog_ctx = { &__nslog_category_dukky
, NSLOG_LEVEL_DEBUG, "content/handlers/javascript/duktape/dukky.c"
, sizeof("content/handlers/javascript/duktape/dukky.c") - 1, __PRETTY_FUNCTION__
, sizeof(__PRETTY_FUNCTION__) - 1, 1653, }; nslog__log(&_nslog_ctx
, "OH NOES! An error running a handler.  Meh."); } } while(0)
18
←
Taking false branch→
19
←
Loop condition is false.  Exiting loop→
1653		      "OH NOES! An error running a handler.  Meh.")do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static
 nslog_entry_context_t _nslog_ctx = { &__nslog_category_dukky
, NSLOG_LEVEL_DEBUG, "content/handlers/javascript/duktape/dukky.c"
, sizeof("content/handlers/javascript/duktape/dukky.c") - 1, __PRETTY_FUNCTION__
, sizeof(__PRETTY_FUNCTION__) - 1, 1653, }; nslog__log(&_nslog_ctx
, "OH NOES! An error running a handler.  Meh."); } } while(0);
1654		duk_get_prop_string(CTX(thread->ctx), -1, "name");
1655		duk_get_prop_string(CTX(thread->ctx), -2, "message");
1656		duk_get_prop_string(CTX(thread->ctx), -3, "fileName");
1657		duk_get_prop_string(CTX(thread->ctx), -4, "lineNumber");
1658		duk_get_prop_string(CTX(thread->ctx), -5, "stack");
1659		/* ... err name message fileName lineNumber stack */
1660		NSLOG(dukky, DEBUG, "Uncaught error in JS: %s: %s",do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static
 nslog_entry_context_t _nslog_ctx = { &__nslog_category_dukky
, NSLOG_LEVEL_DEBUG, "content/handlers/javascript/duktape/dukky.c"
, sizeof("content/handlers/javascript/duktape/dukky.c") - 1, __PRETTY_FUNCTION__
, sizeof(__PRETTY_FUNCTION__) - 1, 1662, }; nslog__log(&_nslog_ctx
, "Uncaught error in JS: %s: %s", duk_safe_to_lstring(((thread
->ctx)), (-5), ((void*)0)), duk_safe_to_lstring(((thread->
ctx)), (-4), ((void*)0))); } } while(0)
20
←
Taking false branch→
21
←
Loop condition is false.  Exiting loop→
1661		      duk_safe_to_string(CTX, -5),do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static
 nslog_entry_context_t _nslog_ctx = { &__nslog_category_dukky
, NSLOG_LEVEL_DEBUG, "content/handlers/javascript/duktape/dukky.c"
, sizeof("content/handlers/javascript/duktape/dukky.c") - 1, __PRETTY_FUNCTION__
, sizeof(__PRETTY_FUNCTION__) - 1, 1662, }; nslog__log(&_nslog_ctx
, "Uncaught error in JS: %s: %s", duk_safe_to_lstring(((thread
->ctx)), (-5), ((void*)0)), duk_safe_to_lstring(((thread->
ctx)), (-4), ((void*)0))); } } while(0)
1662		      duk_safe_to_string(CTX, -4))do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static
 nslog_entry_context_t _nslog_ctx = { &__nslog_category_dukky
, NSLOG_LEVEL_DEBUG, "content/handlers/javascript/duktape/dukky.c"
, sizeof("content/handlers/javascript/duktape/dukky.c") - 1, __PRETTY_FUNCTION__
, sizeof(__PRETTY_FUNCTION__) - 1, 1662, }; nslog__log(&_nslog_ctx
, "Uncaught error in JS: %s: %s", duk_safe_to_lstring(((thread
->ctx)), (-5), ((void*)0)), duk_safe_to_lstring(((thread->
ctx)), (-4), ((void*)0))); } } while(0);
1663		NSLOG(dukky, DEBUG, "              was at: %s line %s",do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static
 nslog_entry_context_t _nslog_ctx = { &__nslog_category_dukky
, NSLOG_LEVEL_DEBUG, "content/handlers/javascript/duktape/dukky.c"
, sizeof("content/handlers/javascript/duktape/dukky.c") - 1, __PRETTY_FUNCTION__
, sizeof(__PRETTY_FUNCTION__) - 1, 1665, }; nslog__log(&_nslog_ctx
, "              was at: %s line %s", duk_safe_to_lstring(((thread
->ctx)), (-3), ((void*)0)), duk_safe_to_lstring(((thread->
ctx)), (-2), ((void*)0))); } } while(0)
22
←
Taking false branch→
23
←
Loop condition is false.  Exiting loop→
1664		      duk_safe_to_string(CTX, -3),do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static
 nslog_entry_context_t _nslog_ctx = { &__nslog_category_dukky
, NSLOG_LEVEL_DEBUG, "content/handlers/javascript/duktape/dukky.c"
, sizeof("content/handlers/javascript/duktape/dukky.c") - 1, __PRETTY_FUNCTION__
, sizeof(__PRETTY_FUNCTION__) - 1, 1665, }; nslog__log(&_nslog_ctx
, "              was at: %s line %s", duk_safe_to_lstring(((thread
->ctx)), (-3), ((void*)0)), duk_safe_to_lstring(((thread->
ctx)), (-2), ((void*)0))); } } while(0)
1665		      duk_safe_to_string(CTX, -2))do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static
 nslog_entry_context_t _nslog_ctx = { &__nslog_category_dukky
, NSLOG_LEVEL_DEBUG, "content/handlers/javascript/duktape/dukky.c"
, sizeof("content/handlers/javascript/duktape/dukky.c") - 1, __PRETTY_FUNCTION__
, sizeof(__PRETTY_FUNCTION__) - 1, 1665, }; nslog__log(&_nslog_ctx
, "              was at: %s line %s", duk_safe_to_lstring(((thread
->ctx)), (-3), ((void*)0)), duk_safe_to_lstring(((thread->
ctx)), (-2), ((void*)0))); } } while(0);
1666		NSLOG(dukky, DEBUG, "         Stack trace: %s",do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static
 nslog_entry_context_t _nslog_ctx = { &__nslog_category_dukky
, NSLOG_LEVEL_DEBUG, "content/handlers/javascript/duktape/dukky.c"
, sizeof("content/handlers/javascript/duktape/dukky.c") - 1, __PRETTY_FUNCTION__
, sizeof(__PRETTY_FUNCTION__) - 1, 1667, }; nslog__log(&_nslog_ctx
, "         Stack trace: %s", duk_safe_to_lstring(((thread->
ctx)), (-1), ((void*)0))); } } while(0)
24
←
Taking false branch→
25
←
Loop condition is false.  Exiting loop→
1667		      duk_safe_to_string(CTX, -1))do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static
 nslog_entry_context_t _nslog_ctx = { &__nslog_category_dukky
, NSLOG_LEVEL_DEBUG, "content/handlers/javascript/duktape/dukky.c"
, sizeof("content/handlers/javascript/duktape/dukky.c") - 1, __PRETTY_FUNCTION__
, sizeof(__PRETTY_FUNCTION__) - 1, 1667, }; nslog__log(&_nslog_ctx
, "         Stack trace: %s", duk_safe_to_lstring(((thread->
ctx)), (-1), ((void*)0))); } } while(0);
1668 
1669		duk_pop_n(CTX(thread->ctx), 6);
1670		/* ... */
1671		js_event_cleanup(thread, evt);
26
←
Calling 'js_event_cleanup'→
44
←
Returning; memory was released via 1st parameter→
1672		dom_event_unref(evt)_dom_event_unref((dom_event *) (evt));
1673		dukky_leave_thread(thread);
45
←
Use of memory after it is freed
1674		return true1;
1675	}
1676	/* ... result */
1677	duk_pop(CTX(thread->ctx));
1678	/* ... */
1679	js_event_cleanup(thread, evt);
1680	dom_event_unref(evt)_dom_event_unref((dom_event *) (evt));
1681	dukky_leave_thread(thread);
1682	return true1;
1683}