static nserror mimesniff__compute_text_or_binary(const uint8_t *data,
size_t len, lwc_string **effective_type)
{
if (data == NULL)
return NSERROR_NEED_DATA;
len = min(len, 512);
if (len >= 3 && ((data[0] == 0xfe && data[1] == 0xff) ||
(data[0] == 0xff && data[1] == 0xfe) ||
(data[0] == 0xef && data[1] == 0xbb &&
data[2] == 0xbf))) {
/* Found a BOM => text/plain */
*effective_type = lwc_string_ref(text_plain);
return NSERROR_OK;
}
if (mimesniff__has_binary_octets(data, len) == false) {
/* No binary octets => text/plain */
*effective_type = lwc_string_ref(text_plain);
return NSERROR_OK;
}
if (mimesniff__match_unknown(data, len, false,
effective_type) == NSERROR_OK)
return NSERROR_OK;
*effective_type = lwc_string_ref(application_octet_stream);
return NSERROR_OK;
}
static nserror mimesniff__compute_image(lwc_string *official_type,
const uint8_t *data, size_t len, lwc_string **effective_type)
{
#define SIG(t, s) { (const uint8_t *) s, SLEN(s), t }
static const struct it_s {
const uint8_t *sig;
size_t len;
lwc_string **type;
} image_types[] = {
SIG(&image_gif, "GIF87a"),
SIG(&image_gif, "GIF89a"),
SIG(&image_png, "\x89PNG\r\n\x1a\n"),
SIG(&image_jpeg, "\xff\xd8\xff"),
SIG(&image_bmp, "BM"),
SIG(&image_vnd_microsoft_icon, "\x00\x00\x01\x00"),
{ NULL, 0, NULL }
};
#undef SIG
const struct it_s *it;
if (data == NULL) {
lwc_string_unref(official_type);
return NSERROR_NEED_DATA;
}
for (it = image_types; it->sig != NULL; it++) {
if (it->len <= len && memcmp(data, it->sig, it->len) == 0) {
lwc_string_unref(official_type);
*effective_type = lwc_string_ref(*it->type);
return NSERROR_OK;
}
}
/* WebP has a signature that doesn't fit into the above table */
if (SLEN("RIFF????WEBPVP") <= len &&
memcmp(data, "RIFF", SLEN("RIFF")) == 0 &&
memcmp(data + SLEN("RIFF????"),
"WEBPVP", SLEN("WEBPVP")) == 0 ) {
lwc_string_unref(official_type);
*effective_type = lwc_string_ref(image_webp);
return NSERROR_OK;
}
*effective_type = official_type;
return NSERROR_OK;
}
/**
* Make the dom_string be interned
*
* \param str The dom_string to be interned
* \param lwcstr The result lwc_string
* \return DOM_NO_ERR on success, appropriate dom_exception on failure.
*/
dom_exception dom_string_intern(dom_string *str,
struct lwc_string_s **lwcstr)
{
dom_string_internal *istr = (dom_string_internal *) str;
/* If this string is already interned, do nothing */
if (istr->type != DOM_STRING_INTERNED) {
lwc_string *ret;
lwc_error lerr;
lerr = lwc_intern_string((const char *) istr->data.cdata.ptr,
istr->data.cdata.len, &ret);
if (lerr != lwc_error_ok) {
return _dom_exception_from_lwc_error(lerr);
}
free(istr->data.cdata.ptr);
istr->data.intern = ret;
istr->type = DOM_STRING_INTERNED;
}
*lwcstr = lwc_string_ref(istr->data.intern);
return DOM_NO_ERR;
}
static nserror mimesniff__match_unknown_exact(const uint8_t *data, size_t len,
bool allow_unsafe, lwc_string **effective_type)
{
#define SIG(t, s, x) { (const uint8_t *) s, SLEN(s), x, t }
static const struct map_s exact_match_types[] = {
SIG(&image_gif, "GIF87a", true),
SIG(&image_gif, "GIF89a", true),
SIG(&image_png, "\x89PNG\r\n\x1a\n", true),
SIG(&image_jpeg, "\xff\xd8\xff", true),
SIG(&image_bmp, "BM", true),
SIG(&image_vnd_microsoft_icon, "\x00\x00\x01\x00", true),
SIG(&application_ogg, "OggS\x00", true),
SIG(&video_webm, "\x1a\x45\xdf\xa3", true),
SIG(&application_x_rar_compressed, "Rar \x1a\x07\x00", true),
SIG(&application_zip, "PK\x03\x04", true),
SIG(&application_x_gzip, "\x1f\x8b\x08", true),
SIG(&application_postscript, "%!PS-Adobe-", true),
SIG(&application_pdf, "%PDF-", false),
{ NULL, 0, false, NULL }
};
#undef SIG
const struct map_s *it;
for (it = exact_match_types; it->sig != NULL; it++) {
if (it->len <= len && memcmp(data, it->sig, it->len) == 0 &&
(allow_unsafe || it->safe)) {
*effective_type = lwc_string_ref(*it->type);
return NSERROR_OK;
}
}
return NSERROR_NOT_FOUND;
}
END_TEST
START_TEST (test_lwc_string_ref_unref_ok)
{
lwc_string_ref(intern_one);
lwc_string_unref(intern_one);
}
END_TEST
START_TEST (test_lwc_string_ref_ok)
{
fail_unless(lwc_string_ref(intern_one) == intern_one,
"Oddly, reffing a string didn't return it");
}
css_error node_classes(void *pw, void *n,
lwc_string ***classes, uint32_t *n_classes)
{
node *node = n;
uint32_t i;
line_ctx *lc = pw;
for (i = 0; i < node->n_attrs; i++) {
bool amatch = false;
assert(lwc_string_caseless_isequal(
node->attrs[i].name, lc->attr_class, &amatch) ==
lwc_error_ok);
if (amatch == true)
break;
}
if (i != node->n_attrs) {
*classes = realloc(NULL, sizeof(lwc_string **));
if (*classes == NULL)
return CSS_NOMEM;
*(classes[0]) =
lwc_string_ref(node->attrs[i].value);
*n_classes = 1;
} else {
*classes = NULL;
*n_classes = 0;
}
return CSS_OK;
}
/* exported interface documented in content/content_protected.h */
lwc_string *content__get_mime_type(struct content *c)
{
if (c == NULL)
return NULL;
return lwc_string_ref(c->mime_type);
}
bool content__add_rfc5988_link(struct content *c,
const struct content_rfc5988_link *link)
{
struct content_rfc5988_link *newlink;
union content_msg_data msg_data;
/* a link relation must be present for it to be a link */
if (link->rel == NULL) {
return false;
}
/* a link href must be present for it to be a link */
if (link->href == NULL) {
return false;
}
newlink = calloc(1, sizeof(struct content_rfc5988_link));
if (newlink == NULL) {
return false;
}
/* copy values */
newlink->rel = lwc_string_ref(link->rel);
newlink->href = nsurl_ref(link->href);
if (link->hreflang != NULL) {
newlink->hreflang = lwc_string_ref(link->hreflang);
}
if (link->type != NULL) {
newlink->type = lwc_string_ref(link->type);
}
if (link->media != NULL) {
newlink->media = lwc_string_ref(link->media);
}
if (link->sizes != NULL) {
newlink->sizes = lwc_string_ref(link->sizes);
}
/* add to metadata link to list */
newlink->next = c->links;
c->links = newlink;
/* broadcast the data */
msg_data.rfc5988_link = newlink;
content_broadcast(c, CONTENT_MSG_LINK, msg_data);
return true;
}
nserror content__init(struct content *c, const content_handler *handler,
lwc_string *imime_type, const http_parameter *params,
llcache_handle *llcache, const char *fallback_charset,
bool quirks)
{
struct content_user *user_sentinel;
nserror error;
LOG(("url "URL_FMT_SPC" -> %p",
nsurl_access(llcache_handle_get_url(llcache)), c));
user_sentinel = calloc(1, sizeof(struct content_user));
if (user_sentinel == NULL) {
return NSERROR_NOMEM;
}
if (fallback_charset != NULL) {
c->fallback_charset = strdup(fallback_charset);
if (c->fallback_charset == NULL) {
free(user_sentinel);
return NSERROR_NOMEM;
}
}
c->llcache = llcache;
c->mime_type = lwc_string_ref(imime_type);
c->handler = handler;
c->status = CONTENT_STATUS_LOADING;
c->width = 0;
c->height = 0;
c->available_width = 0;
c->quirks = quirks;
c->refresh = 0;
c->time = wallclock();
c->size = 0;
c->title = NULL;
c->active = 0;
user_sentinel->callback = NULL;
user_sentinel->pw = NULL;
user_sentinel->next = NULL;
c->user_list = user_sentinel;
c->sub_status[0] = 0;
c->locked = false;
c->total_size = 0;
c->http_code = 0;
c->error_count = 0;
content_set_status(c, messages_get("Loading"));
/* Finally, claim low-level cache events */
error = llcache_handle_change_callback(llcache,
content_llcache_callback, c);
if (error != NSERROR_OK) {
lwc_string_unref(c->mime_type);
return error;
}
return NSERROR_OK;
}
/**
* Cache a CURL handle for the provided host (if wanted)
*/
static void fetch_curl_cache_handle(CURL *handle, lwc_string *host)
{
#if LIBCURL_VERSION_NUM >= 0x071e00
/* 7.30.0 or later has its own connection caching; suppress ours */
curl_easy_cleanup(handle);
return;
#else
struct cache_handle *h = 0;
int c;
RING_FINDBYLWCHOST(curl_handle_ring, h, host);
if (h) {
/* Already have a handle cached for this hostname */
curl_easy_cleanup(handle);
return;
}
/* We do not have a handle cached, first up determine if the cache is full */
RING_GETSIZE(struct cache_handle, curl_handle_ring, c);
if (c >= nsoption_int(max_cached_fetch_handles)) {
/* Cache is full, so, we rotate the ring by one and
* replace the oldest handle with this one. We do this
* without freeing/allocating memory (except the
* hostname) and without removing the entry from the
* ring and then re-inserting it, in order to be as
* efficient as we can.
*/
if (curl_handle_ring != NULL) {
h = curl_handle_ring;
curl_handle_ring = h->r_next;
curl_easy_cleanup(h->handle);
h->handle = handle;
lwc_string_unref(h->host);
h->host = lwc_string_ref(host);
} else {
/* Actually, we don't want to cache any handles */
curl_easy_cleanup(handle);
}
return;
}
/* The table isn't full yet, so make a shiny new handle to add to the ring */
h = (struct cache_handle*)malloc(sizeof(struct cache_handle));
h->handle = handle;
h->host = lwc_string_ref(host);
RING_INSERT(curl_handle_ring, h);
#endif
}
css_error node_name(void *pw, void *n, css_qname *qname)
{
node *node = n;
UNUSED(pw);
qname->name = lwc_string_ref(node->name);
return CSS_OK;
}
static css_error resolve_url(void *pw,
const char *base, lwc_string *rel, lwc_string **abs)
{
UNUSED(pw);
UNUSED(base);
/* About as useless as possible */
*abs = lwc_string_ref(rel);
return CSS_OK;
}
static nserror mimesniff__compute_unknown(const uint8_t *data, size_t len,
lwc_string **effective_type)
{
if (data == NULL)
return NSERROR_NEED_DATA;
len = min(len, 512);
if (mimesniff__match_unknown(data, len, true,
effective_type) == NSERROR_OK)
return NSERROR_OK;
if (mimesniff__has_binary_octets(data, len) == false) {
/* No binary octets => text/plain */
*effective_type = lwc_string_ref(text_plain);
return NSERROR_OK;
}
*effective_type = lwc_string_ref(application_octet_stream);
return NSERROR_OK;
}
/**
* Set a font-face's font-family name
*
* \param font_face The font-face
* \param font_family Font-family name
* \param result Pointer to location to receive result
* \return CSS_OK on success,
* CSS_BADPARM on bad parameters.
*/
css_error css__font_face_set_font_family(css_font_face *font_face,
lwc_string *font_family)
{
if (font_face == NULL || font_family == NULL)
return CSS_BADPARM;
if (font_face->font_family != NULL)
lwc_string_unref(font_face->font_family);
font_face->font_family = lwc_string_ref(font_family);
return CSS_OK;
}
void fetch_data_register(void)
{
lwc_string *scheme = lwc_string_ref(corestring_lwc_data);
fetch_add_fetcher(scheme,
fetch_data_initialise,
fetch_data_can_fetch,
fetch_data_setup,
fetch_data_start,
fetch_data_abort,
fetch_data_free,
fetch_data_poll,
fetch_data_finalise);
}
static css_error node_classes(void *pw, void *n,
lwc_string ***classes, uint32_t *n_classes)
{
unsigned int i;
node *node = n;
UNUSED(pw);
*classes = node->classes;
*n_classes = node->n_classes;
for (i = 0; i < *n_classes; i++)
(*classes)[i] = lwc_string_ref(node->classes[i]);
return CSS_OK;
}
/**
* Register javascript scheme fetcher with fetcher factory.
*
* \return NSERROR_OK on success or appropriate error code on faliure.
*/
nserror fetch_javascript_register(void)
{
lwc_string *scheme = lwc_string_ref(corestring_lwc_javascript);
const struct fetcher_operation_table fetcher_ops = {
.initialise = fetch_javascript_initialise,
.acceptable = fetch_javascript_can_fetch,
.setup = fetch_javascript_setup,
.start = fetch_javascript_start,
.abort = fetch_javascript_abort,
.free = fetch_javascript_free,
.poll = fetch_javascript_poll,
.finalise = fetch_javascript_finalise
};
return fetcher_add(scheme, &fetcher_ops);
}
static nserror mimesniff__match_unknown_bom(const uint8_t *data, size_t len,
lwc_string **effective_type)
{
#define SIG(t, s, x) { (const uint8_t *) s, SLEN(s), x, t }
static const struct map_s bom_match_types[] = {
SIG(&text_plain, "\xfe\xff", false),
SIG(&text_plain, "\xff\xfe", false),
SIG(&text_plain, "\xef\xbb\xbf", false),
{ NULL, 0, false, NULL }
};
#undef SIG
const struct map_s *it;
for (it = bom_match_types; it->sig != NULL; it++) {
if (it->len <= len && memcmp(data, it->sig, it->len) == 0) {
*effective_type = lwc_string_ref(*it->type);
return NSERROR_OK;
}
}
return NSERROR_NOT_FOUND;
}
/**
* Create a string from a list of IDENT/S tokens if the next token is IDENT
* or references the next token's string if it is a STRING
*
* \param c Parsing context
* \param vector Vector containing tokens
* \param ctx Vector iteration context
* \param reserved Callback to determine if an identifier is reserved
* \param result Pointer to location to receive resulting string
* \return CSS_OK on success, appropriate error otherwise.
*
* Post condition: \a *ctx is updated with the next token to process
* If the input is invalid, then \a *ctx remains unchanged.
*
* The resulting string's reference is passed to the caller
*/
css_error css__ident_list_or_string_to_string(css_language *c,
const parserutils_vector *vector, int *ctx,
bool (*reserved)(css_language *c, const css_token *ident),
lwc_string **result)
{
const css_token *token;
token = parserutils_vector_peek(vector, *ctx);
if (token == NULL)
return CSS_INVALID;
if (token->type == CSS_TOKEN_STRING) {
token = parserutils_vector_iterate(vector, ctx);
*result = lwc_string_ref(token->idata);
return CSS_OK;
} else if(token->type == CSS_TOKEN_IDENT) {
return css__ident_list_to_string(c, vector, ctx, reserved,
result);
}
return CSS_INVALID;
}
css_error node_id(void *pw, void *n,
lwc_string **id)
{
node *node = n;
uint32_t i;
line_ctx *lc = pw;
for (i = 0; i < node->n_attrs; i++) {
bool amatch = false;
assert(lwc_string_caseless_isequal(
node->attrs[i].name, lc->attr_id, &amatch) ==
lwc_error_ok);
if (amatch == true)
break;
}
if (i != node->n_attrs)
*id = lwc_string_ref(node->attrs[i].value);
else
*id = NULL;
return CSS_OK;
}
static nserror mimesniff__match_unknown_riff(const uint8_t *data, size_t len,
lwc_string **effective_type)
{
#define SIG(t, s, x) { (const uint8_t *) s, SLEN(s), x, t }
static const struct map_s riff_match_types[] = {
SIG(&image_webp, "WEBPVP", true),
SIG(&audio_wave, "WAVE", true),
{ NULL, 0, false, NULL }
};
#undef SIG
const struct map_s *it;
for (it = riff_match_types; it->sig != NULL; it++) {
if (it->len + SLEN("RIFF????") <= len &&
memcmp(data, "RIFF", SLEN("RIFF")) == 0 &&
memcmp(data + SLEN("RIFF????"),
it->sig, it->len) == 0) {
*effective_type = lwc_string_ref(*it->type);
return NSERROR_OK;
}
}
return NSERROR_NOT_FOUND;
}
/**
* Parse content
*
* \param c Parsing context
* \param vector Vector of tokens to process
* \param ctx Pointer to vector iteration context
* \param result Pointer to location to receive resulting style
* \return CSS_OK on success,
* CSS_NOMEM on memory exhaustion,
* CSS_INVALID if the input is not valid
*
* Post condition: \a *ctx is updated with the next token to process
* If the input is invalid, then \a *ctx remains unchanged.
*/
css_error css__parse_content(css_language *c,
const parserutils_vector *vector, int *ctx,
css_style *result)
{
int orig_ctx = *ctx;
css_error error;
const css_token *token;
bool match;
/* IDENT(normal, none, inherit) | [ ... ]+ */
token = parserutils_vector_iterate(vector, ctx);
if (token == NULL) {
*ctx = orig_ctx;
return CSS_INVALID;
}
if ((token->type == CSS_TOKEN_IDENT) &&
(lwc_string_caseless_isequal(token->idata,
c->strings[INHERIT],
&match) == lwc_error_ok && match)) {
error = css_stylesheet_style_inherit(result, CSS_PROP_CONTENT);
} else if ((token->type == CSS_TOKEN_IDENT) &&
(lwc_string_caseless_isequal(token->idata,
c->strings[NORMAL],
&match) == lwc_error_ok && match)) {
error = css__stylesheet_style_appendOPV(result, CSS_PROP_CONTENT, 0, CONTENT_NORMAL);
} else if ((token->type == CSS_TOKEN_IDENT) &&
(lwc_string_caseless_isequal(token->idata,
c->strings[NONE],
&match) == lwc_error_ok && match)) {
error = css__stylesheet_style_appendOPV(result, CSS_PROP_CONTENT, 0, CONTENT_NONE);
} else {
/* Macro to output the value marker, awkward because we need to check
* first to determine how the value is constructed.
*/
#define CSS_APPEND(CSSVAL) css__stylesheet_style_append(result, first?buildOPV(CSS_PROP_CONTENT, 0, CSSVAL):CSSVAL)
bool first = true;
int prev_ctx = orig_ctx;
/* [
* IDENT(open-quote, close-quote, no-open-quote,
* no-close-quote) |
* STRING |
* URI |
* FUNCTION(attr) IDENT ')' |
* FUNCTION(counter) IDENT IDENT? ')' |
* FUNCTION(counters) IDENT STRING IDENT? ')'
* ]+
*/
while (token != NULL) {
if ((token->type == CSS_TOKEN_IDENT) &&
(lwc_string_caseless_isequal(
token->idata, c->strings[OPEN_QUOTE],
&match) == lwc_error_ok && match)) {
error = CSS_APPEND(CONTENT_OPEN_QUOTE);
} else if (token->type == CSS_TOKEN_IDENT &&
(lwc_string_caseless_isequal(
token->idata, c->strings[CLOSE_QUOTE],
&match) == lwc_error_ok && match)) {
error = CSS_APPEND(CONTENT_CLOSE_QUOTE);
} else if (token->type == CSS_TOKEN_IDENT &&
(lwc_string_caseless_isequal(
token->idata, c->strings[NO_OPEN_QUOTE],
&match) == lwc_error_ok && match)) {
error = CSS_APPEND(CONTENT_NO_OPEN_QUOTE);
} else if (token->type == CSS_TOKEN_IDENT &&
(lwc_string_caseless_isequal(
token->idata, c->strings[NO_CLOSE_QUOTE],
&match) == lwc_error_ok && match)) {
error = CSS_APPEND(CONTENT_NO_CLOSE_QUOTE);
} else if (token->type == CSS_TOKEN_STRING) {
uint32_t snumber;
error = css__stylesheet_string_add(c->sheet, lwc_string_ref(token->idata), &snumber);
if (error != CSS_OK) {
*ctx = orig_ctx;
return error;
}
error = CSS_APPEND(CONTENT_STRING);
if (error != CSS_OK) {
*ctx = orig_ctx;
return error;
}
error = css__stylesheet_style_append(result, snumber);
} else if (token->type == CSS_TOKEN_URI) {
lwc_string *uri;
uint32_t uri_snumber;
error = c->sheet->resolve(c->sheet->resolve_pw,
c->sheet->url,
token->idata,
&uri);
if (error != CSS_OK) {
*ctx = orig_ctx;
return error;
}
error = css__stylesheet_string_add(c->sheet,
uri,
&uri_snumber);
if (error != CSS_OK) {
*ctx = orig_ctx;
return error;
}
error = CSS_APPEND(CONTENT_URI);
if (error != CSS_OK) {
*ctx = orig_ctx;
return error;
}
error = css__stylesheet_style_append(result, uri_snumber);
} else if (token->type == CSS_TOKEN_FUNCTION &&
(lwc_string_caseless_isequal(
token->idata, c->strings[ATTR],
&match) == lwc_error_ok && match)) {
uint32_t snumber;
consumeWhitespace(vector, ctx);
/* Expect IDENT */
token = parserutils_vector_iterate(vector, ctx);
if (token == NULL || token->type != CSS_TOKEN_IDENT) {
*ctx = orig_ctx;
return CSS_INVALID;
}
error = css__stylesheet_string_add(c->sheet, lwc_string_ref(token->idata), &snumber);
if (error != CSS_OK) {
*ctx = orig_ctx;
return error;
}
error = CSS_APPEND(CONTENT_ATTR);
if (error != CSS_OK) {
*ctx = orig_ctx;
return error;
}
error = css__stylesheet_style_append(result, snumber);
consumeWhitespace(vector, ctx);
/* Expect ')' */
token = parserutils_vector_iterate(vector, ctx);
if (token == NULL || tokenIsChar(token, ')') == false) {
*ctx = orig_ctx;
return CSS_INVALID;
}
} else if (token->type == CSS_TOKEN_FUNCTION &&
(lwc_string_caseless_isequal(
token->idata, c->strings[COUNTER],
&match) == lwc_error_ok && match)) {
lwc_string *name;
uint32_t snumber;
uint32_t opv;
opv = CONTENT_COUNTER;
consumeWhitespace(vector, ctx);
/* Expect IDENT */
token = parserutils_vector_iterate(vector, ctx);
if (token == NULL || token->type != CSS_TOKEN_IDENT) {
*ctx = orig_ctx;
return CSS_INVALID;
}
name = token->idata;
consumeWhitespace(vector, ctx);
/* Possible ',' */
token = parserutils_vector_peek(vector, *ctx);
if (token == NULL ||
(tokenIsChar(token, ',') == false &&
tokenIsChar(token, ')') == false)) {
*ctx = orig_ctx;
return CSS_INVALID;
}
if (tokenIsChar(token, ',')) {
uint16_t v;
parserutils_vector_iterate(vector, ctx);
consumeWhitespace(vector, ctx);
/* Expect IDENT */
token = parserutils_vector_peek(vector, *ctx);
if (token == NULL || token->type !=
CSS_TOKEN_IDENT) {
*ctx = orig_ctx;
return CSS_INVALID;
}
error = css__parse_list_style_type_value(c, token, &v);
if (error != CSS_OK) {
*ctx = orig_ctx;
return error;
}
opv |= v << CONTENT_COUNTER_STYLE_SHIFT;
parserutils_vector_iterate(vector, ctx);
consumeWhitespace(vector, ctx);
} else {
opv |= LIST_STYLE_TYPE_DECIMAL <<
CONTENT_COUNTER_STYLE_SHIFT;
}
/* Expect ')' */
token = parserutils_vector_iterate(vector, ctx);
if (token == NULL || tokenIsChar(token, ')') == false) {
*ctx = orig_ctx;
return CSS_INVALID;
}
error = css__stylesheet_string_add(c->sheet, lwc_string_ref(name), &snumber);
if (error != CSS_OK) {
*ctx = orig_ctx;
return error;
}
error = CSS_APPEND(opv);
if (error != CSS_OK) {
*ctx = orig_ctx;
return error;
}
error = css__stylesheet_style_append(result, snumber);
} else if (token->type == CSS_TOKEN_FUNCTION &&
(lwc_string_caseless_isequal(
token->idata, c->strings[COUNTERS],
&match) == lwc_error_ok && match)) {
lwc_string *name;
lwc_string *sep;
uint32_t name_snumber;
uint32_t sep_snumber;
uint32_t opv;
opv = CONTENT_COUNTERS;
consumeWhitespace(vector, ctx);
/* Expect IDENT */
token = parserutils_vector_iterate(vector, ctx);
if (token == NULL || token->type != CSS_TOKEN_IDENT) {
*ctx = orig_ctx;
return CSS_INVALID;
}
name = token->idata;
consumeWhitespace(vector, ctx);
/* Expect ',' */
token = parserutils_vector_iterate(vector, ctx);
if (token == NULL || tokenIsChar(token, ',') == false) {
*ctx = orig_ctx;
return CSS_INVALID;
}
consumeWhitespace(vector, ctx);
/* Expect STRING */
token = parserutils_vector_iterate(vector, ctx);
if (token == NULL || token->type != CSS_TOKEN_STRING) {
*ctx = orig_ctx;
return CSS_INVALID;
}
sep = token->idata;
consumeWhitespace(vector, ctx);
/* Possible ',' */
token = parserutils_vector_peek(vector, *ctx);
if (token == NULL ||
(tokenIsChar(token, ',') == false &&
tokenIsChar(token, ')') == false)) {
*ctx = orig_ctx;
return CSS_INVALID;
}
if (tokenIsChar(token, ',')) {
uint16_t v;
parserutils_vector_iterate(vector, ctx);
consumeWhitespace(vector, ctx);
/* Expect IDENT */
token = parserutils_vector_peek(vector, *ctx);
if (token == NULL || token->type !=
CSS_TOKEN_IDENT) {
*ctx = orig_ctx;
return CSS_INVALID;
}
error = css__parse_list_style_type_value(c,
token, &v);
if (error != CSS_OK) {
*ctx = orig_ctx;
return error;
}
opv |= v << CONTENT_COUNTERS_STYLE_SHIFT;
parserutils_vector_iterate(vector, ctx);
consumeWhitespace(vector, ctx);
} else {
opv |= LIST_STYLE_TYPE_DECIMAL <<
CONTENT_COUNTERS_STYLE_SHIFT;
}
/* Expect ')' */
token = parserutils_vector_iterate(vector, ctx);
if (token == NULL || tokenIsChar(token, ')') == false) {
*ctx = orig_ctx;
return CSS_INVALID;
}
error = css__stylesheet_string_add(c->sheet, lwc_string_ref(name), &name_snumber);
if (error != CSS_OK) {
*ctx = orig_ctx;
return error;
}
error = css__stylesheet_string_add(c->sheet, lwc_string_ref(sep), &sep_snumber);
if (error != CSS_OK) {
*ctx = orig_ctx;
return error;
}
error = CSS_APPEND(opv);
if (error != CSS_OK) {
*ctx = orig_ctx;
return error;
}
error = css__stylesheet_style_append(result, name_snumber);
if (error != CSS_OK) {
*ctx = orig_ctx;
return error;
}
error = css__stylesheet_style_append(result, sep_snumber);
} else if (first) {
/* Invalid if this is the first iteration */
error = CSS_INVALID;
} else {
/* Give up, ensuring current token is reprocessed */
*ctx = prev_ctx;
error = CSS_OK;
break;
}
/* if there was an error bail */
if (error != CSS_OK) {
*ctx = orig_ctx;
return error;
}
first = false;
consumeWhitespace(vector, ctx);
prev_ctx = *ctx;
token = parserutils_vector_iterate(vector, ctx);
} /* while */
/* Write list terminator */
css__stylesheet_style_append(result, CONTENT_NORMAL);
}
if (error != CSS_OK)
*ctx = orig_ctx;
return error;
}
void css__parse_tree_data(line_ctx *ctx, const char *data, size_t len)
{
const char *p = data;
const char *end = data + len;
const char *name = NULL;
const char *value = NULL;
size_t namelen = 0;
size_t valuelen = 0;
uint32_t depth = 0;
bool target = false;
/* ' '{depth+1} [ <element> '*'? | <attr> ]
*
* <element> ::= [^=*[:space:]]+
* <attr> ::= [^=*[:space:]]+ '=' [^[:space:]]*
*/
while (p < end && isspace(*p)) {
depth++;
p++;
}
depth--;
/* Get element/attribute name */
name = p;
while (p < end && *p != '=' && *p != '*' && isspace(*p) == false) {
namelen++;
p++;
}
/* Skip whitespace */
while (p < end && isspace(*p))
p++;
if (p < end && *p == '=') {
/* Attribute value */
p++;
value = p;
while (p < end && isspace(*p) == false) {
valuelen++;
p++;
}
} else if (p < end && *p == '*') {
/* Element is target node */
target = true;
}
if (value == NULL) {
/* We have an element, so create it */
node *n = malloc(sizeof(node));
assert(n != NULL);
memset(n, 0, sizeof(node));
lwc_intern_string(name, namelen, &n->name);
/* Insert it into tree */
if (ctx->tree == NULL) {
ctx->tree = n;
} else {
assert(depth > 0);
assert(depth <= ctx->depth + 1);
/* Find node to insert into */
while (depth <= ctx->depth) {
ctx->depth--;
ctx->current = ctx->current->parent;
}
/* Insert into current node */
if (ctx->current->children == NULL) {
ctx->current->children = n;
ctx->current->last_child = n;
} else {
ctx->current->last_child->next = n;
n->prev = ctx->current->last_child;
ctx->current->last_child = n;
}
n->parent = ctx->current;
}
ctx->current = n;
ctx->depth = depth;
/* Mark the target, if it's us */
if (target)
ctx->target = n;
} else {
/* New attribute */
bool amatch = false;
attribute *attr;
node *n = ctx->current;
attribute *temp = realloc(n->attrs,
(n->n_attrs + 1) * sizeof(attribute));
assert(temp != NULL);
n->attrs = temp;
attr = &n->attrs[n->n_attrs];
lwc_intern_string(name, namelen, &attr->name);
lwc_intern_string(value, valuelen, &attr->value);
assert(lwc_string_caseless_isequal(
n->attrs[n->n_attrs].name,
ctx->attr_class, &amatch) == lwc_error_ok);
if (amatch == true) {
n->classes = realloc(NULL, sizeof(lwc_string **));
assert(n->classes != NULL);
n->classes[0] = lwc_string_ref(
n->attrs[n->n_attrs].
value);
n->n_classes = 1;
}
n->n_attrs++;
}
}
extern void rust_lwc_string_ref(lwc_string *str) {
lwc_string_ref(str);
}
/**
* Clone a history entry
*
* \param history opaque history structure, as returned by history_create()
* \param entry entry to clone
* \return A cloned history entry or NULL on error
*/
static struct history_entry *
browser_window_history__clone_entry(struct history *history,
struct history_entry *entry)
{
struct history_entry *child;
struct history_entry *new_child;
struct history_entry *prev = NULL;
struct history_entry *new_entry;
assert(entry->page.url);
assert(entry->page.title);
/* clone the entry */
new_entry = malloc(sizeof *entry);
if (!new_entry)
return NULL;
memcpy(new_entry, entry, sizeof *entry);
new_entry->page.url = nsurl_ref(entry->page.url);
if (entry->page.frag_id)
new_entry->page.frag_id = lwc_string_ref(entry->page.frag_id);
new_entry->page.title = strdup(entry->page.title);
if (!new_entry->page.url || !new_entry->page.title ||
((entry->page.frag_id) && (!new_entry->page.frag_id))) {
nsurl_unref(new_entry->page.url);
if (new_entry->page.frag_id)
lwc_string_unref(new_entry->page.frag_id);
free(new_entry->page.title);
free(new_entry);
return NULL;
}
/* update references */
if (history->current == entry)
history->current = new_entry;
/* recurse for all children */
for (child = new_entry->forward; child; child = child->next) {
new_child = browser_window_history__clone_entry(history, child);
if (new_child) {
new_child->back = new_entry;
} else {
nsurl_unref(new_entry->page.url);
if (new_entry->page.frag_id)
lwc_string_unref(new_entry->page.frag_id);
free(new_entry->page.title);
free(new_entry);
return NULL;
}
if (prev)
prev->next = new_child;
if (new_entry->forward == child)
new_entry->forward = new_child;
if (new_entry->forward_pref == child)
new_entry->forward_pref = new_child;
if (new_entry->forward_last == child)
new_entry->forward_last = new_child;
prev = new_child;
}
return new_entry;
}
/**
* Recursively redraw a history_entry.
*
* \param history history containing the entry
* \param entry entry to render
* \param x0 area top left x coordinate
* \param y0 area top left y coordinate
* \param x1 area bottom right x coordinate
* \param y1 area bottom right y coordinate
* \param x window x offset
* \param y window y offset
* \param clip clip redraw
* \param ctx current redraw context
*/
static bool
browser_window_history__redraw_entry(struct history *history,
struct history_entry *entry,
int x0, int y0, int x1, int y1,
int x, int y, bool clip,
const struct redraw_context *ctx)
{
const struct plotter_table *plot = ctx->plot;
size_t char_offset;
int actual_x;
struct history_entry *child;
colour c = entry == history->current ?
HISTORY_COLOUR_SELECTED : HISTORY_COLOUR_FOREGROUND;
int tailsize = 5;
int xoffset = x - x0;
int yoffset = y - y0;
plot_style_t pstyle_history_rect = {
.stroke_type = PLOT_OP_TYPE_SOLID,
.stroke_colour = c,
.stroke_width = entry == history->current ? 3 : 1,
};
plot_font_style_t fstyle = *plot_style_font;
if (clip) {
struct rect rect;
rect.x0 = x0 + xoffset;
rect.y0 = y0 + yoffset;
rect.x1 = x1 + xoffset;
rect.y1 = y1 + yoffset;
if (!plot->clip(&rect)) {
return false;
}
}
/* Only attempt to plot bitmap if it is present */
if (entry->bitmap != NULL) {
plot->bitmap(entry->x + xoffset,
entry->y + yoffset,
WIDTH, HEIGHT,
entry->bitmap, 0xffffff, 0);
}
if (!plot->rectangle(entry->x - 1 + xoffset,
entry->y - 1 + yoffset,
entry->x + xoffset + WIDTH,
entry->y + yoffset + HEIGHT,
&pstyle_history_rect))
return false;
if (!nsfont.font_position_in_string(plot_style_font, entry->page.title,
strlen(entry->page.title), WIDTH,
&char_offset, &actual_x))
return false;
fstyle.background = HISTORY_COLOUR_BACKGROUND;
fstyle.foreground = c;
fstyle.weight = entry == history->current ? 900 : 400;
if (!plot->text(entry->x + xoffset, entry->y + HEIGHT + 12 + yoffset,
entry->page.title, char_offset, &fstyle))
return false;
for (child = entry->forward; child; child = child->next) {
if (!plot->line(entry->x + WIDTH + xoffset,
entry->y + HEIGHT / 2 + yoffset,
entry->x + WIDTH + tailsize + xoffset,
entry->y + HEIGHT / 2 + yoffset,
plot_style_stroke_history))
return false;
if (!plot->line(entry->x + WIDTH + tailsize + xoffset,
entry->y + HEIGHT / 2 + yoffset,
child->x - tailsize +xoffset,
child->y + HEIGHT / 2 + yoffset,
plot_style_stroke_history))
return false;
if (!plot->line(child->x - tailsize + xoffset,
child->y + HEIGHT / 2 + yoffset,
child->x + xoffset, child->y +
HEIGHT / 2 + yoffset,
plot_style_stroke_history))
return false;
if (!browser_window_history__redraw_entry(history, child,
x0, y0, x1, y1, x, y, clip, ctx))
return false;
}
return true;
}
/**
* Find the history entry at a position.
*
* \param entry entry to search from
* \param x coordinate
* \param y coordinate
* \return an entry if found, 0 if none
*/
static struct history_entry *browser_window_history__find_position(
struct history_entry *entry, int x, int y)
{
struct history_entry *child;
struct history_entry *found;
if (!entry)
return 0;
if (entry->x <= x && x <= entry->x + WIDTH &&
entry->y <= y && y <= entry->y + HEIGHT)
return entry;
for (child = entry->forward; child; child = child->next) {
found = browser_window_history__find_position(child, x, y);
if (found)
return found;
}
return 0;
}
/**
* Enumerate subentries in history
* See also history_enumerate()
*
* \param bw The browser window to enumerate history of
* \param entry entry to start enumeration at
* \param cb callback function
* \param ud context pointer passed to cb
* \return true to continue enumeration, false to cancel
*/
static bool browser_window_history__enumerate_entry(
const struct browser_window *bw,
const struct history_entry *entry,
browser_window_history_enumerate_cb cb,
void *ud)
{
const struct history_entry *child;
if (!cb(bw, entry->x, entry->y,
entry->x + WIDTH, entry->y + HEIGHT,
entry, ud))
return false;
for (child = entry->forward; child; child = child->next) {
if (!browser_window_history__enumerate_entry(bw, child,
cb, ud))
return false;
}
return true;
}
/* -------------------------------------------------------------------------- */
/* exported interface documented in desktop/browser_history.h */
nserror browser_window_history_create(struct browser_window *bw)
{
struct history *history;
bw->history = NULL;
history = calloc(1, sizeof *history);
if (history == NULL) {
return NSERROR_NOMEM;
}
history->width = RIGHT_MARGIN / 2;
history->height = BOTTOM_MARGIN / 2;
bw->history = history;
return NSERROR_OK;
}
/* exported interface documented in desktop/browser_history.h */
nserror browser_window_history_clone(const struct browser_window *existing,
struct browser_window *clone)
{
struct history *new_history;
clone->history = NULL;
if (existing == NULL || existing->history == NULL ||
existing->history->start == NULL)
/* Nothing to clone, create new history for clone window */
return browser_window_history_create(clone);
/* Make cloned history */
new_history = malloc(sizeof *new_history);
if (!new_history)
return NSERROR_NOMEM;
clone->history = new_history;
memcpy(new_history, existing->history, sizeof *new_history);
new_history->start = browser_window_history__clone_entry(new_history,
new_history->start);
if (!new_history->start) {
LOG("Insufficient memory to clone history");
browser_window_history_destroy(clone);
clone->history = NULL;
return NSERROR_NOMEM;
}
return NSERROR_OK;
}
/* exported interface documented in desktop/browser_history.h */
nserror browser_window_history_add(struct browser_window *bw,
struct hlcache_handle *content, lwc_string *frag_id)
{
struct history *history;
struct history_entry *entry;
nsurl *nsurl = hlcache_handle_get_url(content);
char *title;
struct bitmap *bitmap;
nserror ret;
assert(bw);
assert(bw->history);
assert(content);
history = bw->history;
/* allocate space */
entry = malloc(sizeof *entry);
if (entry == NULL) {
return NSERROR_NOMEM;
}
title = strdup(content_get_title(content));
if (title == NULL) {
free(entry);
return NSERROR_NOMEM;
}
entry->page.url = nsurl_ref(nsurl);
entry->page.frag_id = frag_id ? lwc_string_ref(frag_id) : 0;
entry->page.title = title;
entry->back = history->current;
entry->next = 0;
entry->forward = entry->forward_pref = entry->forward_last = 0;
entry->children = 0;
entry->bitmap = 0;
if (history->current) {
if (history->current->forward_last)
history->current->forward_last->next = entry;
else
history->current->forward = entry;
history->current->forward_pref = entry;
history->current->forward_last = entry;
history->current->children++;
} else {
history->start = entry;
}
history->current = entry;
/* if we have a thumbnail, don't update until the page has finished
* loading */
bitmap = urldb_get_thumbnail(nsurl);
if (bitmap == NULL) {
LOG("Creating thumbnail for %s", nsurl_access(nsurl));
bitmap = guit->bitmap->create(WIDTH, HEIGHT,
BITMAP_NEW | BITMAP_CLEAR_MEMORY |
BITMAP_OPAQUE);
if (bitmap != NULL) {
ret = guit->bitmap->render(bitmap, content);
if (ret == NSERROR_OK) {
/* Successful thumbnail so register it
* with the url.
*/
urldb_set_thumbnail(nsurl, bitmap);
} else {
/* Thumbnailing failed. Ignore it
* silently but clean up bitmap.
*/
LOG("Thumbnail renderfailed");
guit->bitmap->destroy(bitmap);
bitmap = NULL;
}
}
}
entry->bitmap = bitmap;
browser_window_history__layout(history);
return NSERROR_OK;
}
/* exported interface documented in desktop/browser_history.h */
nserror browser_window_history_update(struct browser_window *bw,
struct hlcache_handle *content)
{
struct history *history;
char *title;
assert(bw != NULL);
history = bw->history;
if (!history || !history->current || !history->current->bitmap) {
return NSERROR_INVALID;
}
assert(history->current->page.url);
assert(history->current->page.title);
title = strdup(content_get_title(content));
if (title == NULL) {
return NSERROR_NOMEM;
}
free(history->current->page.title);
history->current->page.title = title;
guit->bitmap->render(history->current->bitmap, content);
return NSERROR_OK;
}
/* exported interface documented in desktop/browser_history.h */
void browser_window_history_destroy(struct browser_window *bw)
{
assert(bw != NULL);
if (bw->history == NULL)
return;
browser_window_history__free_entry(bw->history->start);
free(bw->history);
bw->history = NULL;
}
/**
* Parse a comma separated list, converting to bytecode
*
* \param c Parsing context
* \param vector Vector of tokens to process
* \param ctx Pointer to vector iteration context
* \param reserved Callback to determine if an identifier is reserved
* \param get_value Callback to retrieve bytecode value for a token
* \param style Pointer to output style
* \return CSS_OK on success,
* CSS_INVALID if the input is invalid
*
* Post condition: \a *ctx is updated with the next token to process
* If the input is invalid, then \a *ctx remains unchanged.
*/
css_error css__comma_list_to_style(css_language *c,
const parserutils_vector *vector, int *ctx,
bool (*reserved)(css_language *c, const css_token *ident),
css_code_t (*get_value)(css_language *c, const css_token *token, bool first),
css_style *result)
{
int orig_ctx = *ctx;
int prev_ctx = orig_ctx;
const css_token *token;
bool first = true;
css_error error = CSS_OK;
token = parserutils_vector_iterate(vector, ctx);
if (token == NULL) {
*ctx = orig_ctx;
return CSS_INVALID;
}
while (token != NULL) {
if (token->type == CSS_TOKEN_IDENT) {
css_code_t value = get_value(c, token, first);
if (reserved(c, token) == false) {
lwc_string *str = NULL;
uint32_t snumber;
*ctx = prev_ctx;
error = css__ident_list_to_string(c, vector, ctx,
reserved, &str);
if (error != CSS_OK)
goto cleanup;
error = css__stylesheet_string_add(c->sheet,
str, &snumber);
if (error != CSS_OK)
goto cleanup;
error = css__stylesheet_style_append(result,
value);
if (error != CSS_OK)
goto cleanup;
error = css__stylesheet_style_append(result,
snumber);
if (error != CSS_OK)
goto cleanup;
} else {
error = css__stylesheet_style_append(result,
value);
if (error != CSS_OK)
goto cleanup;
}
} else if (token->type == CSS_TOKEN_STRING) {
css_code_t value = get_value(c, token, first);
uint32_t snumber;
error = css__stylesheet_string_add(c->sheet,
lwc_string_ref(token->idata), &snumber);
if (error != CSS_OK)
goto cleanup;
error = css__stylesheet_style_append(result, value);
if (error != CSS_OK)
goto cleanup;
error = css__stylesheet_style_append(result, snumber);
if (error != CSS_OK)
goto cleanup;
} else {
error = CSS_INVALID;
goto cleanup;
}
consumeWhitespace(vector, ctx);
token = parserutils_vector_peek(vector, *ctx);
if (token != NULL && tokenIsChar(token, ',')) {
parserutils_vector_iterate(vector, ctx);
consumeWhitespace(vector, ctx);
token = parserutils_vector_peek(vector, *ctx);
if (token == NULL || (token->type != CSS_TOKEN_IDENT &&
token->type != CSS_TOKEN_STRING)) {
error = CSS_INVALID;
goto cleanup;
}
} else {
break;
}
first = false;
prev_ctx = *ctx;
token = parserutils_vector_iterate(vector, ctx);
}
cleanup:
if (error != CSS_OK)
*ctx = orig_ctx;
return error;
}
/* See mimesniff.h for documentation */
nserror mimesniff_compute_effective_type(llcache_handle *handle,
const uint8_t *data, size_t len, bool sniff_allowed,
bool image_only, lwc_string **effective_type)
{
#define S(s) { s, SLEN(s) }
static const struct tt_s {
const char *data;
size_t len;
} text_types[] = {
S("text/plain"),
S("text/plain; charset=ISO-8859-1"),
S("text/plain; charset=iso-8859-1"),
S("text/plain; charset=UTF-8"),
{ NULL, 0 }
};
#undef S
const char *content_type_header;
size_t content_type_header_len;
http_content_type *ct;
const struct tt_s *tt;
bool match;
nserror error;
content_type_header =
llcache_handle_get_header(handle, "Content-Type");
if (content_type_header == NULL) {
if (sniff_allowed == false)
return NSERROR_NOT_FOUND;
/* No official type => unknown */
return mimesniff__compute_unknown(data, len, effective_type);
}
error = http_parse_content_type(content_type_header, &ct);
if (error != NSERROR_OK) {
if (sniff_allowed == false)
return NSERROR_NOT_FOUND;
/* Unparseable => unknown */
return mimesniff__compute_unknown(data, len, effective_type);
}
if (sniff_allowed == false) {
*effective_type = lwc_string_ref(ct->media_type);
http_content_type_destroy(ct);
return NSERROR_OK;
}
if (image_only) {
lwc_string *official_type;
if (lwc_string_caseless_isequal(ct->media_type, image_svg,
&match) == lwc_error_ok && match) {
*effective_type = lwc_string_ref(image_svg);
http_content_type_destroy(ct);
return NSERROR_OK;
}
official_type = lwc_string_ref(ct->media_type);
http_content_type_destroy(ct);
return mimesniff__compute_image(official_type,
data, len, effective_type);
}
content_type_header_len = strlen(content_type_header);
/* Look for text types */
for (tt = text_types; tt->data != NULL; tt++) {
if (tt->len == content_type_header_len &&
memcmp(tt->data, content_type_header,
content_type_header_len) == 0) {
http_content_type_destroy(ct);
return mimesniff__compute_text_or_binary(data, len,
effective_type);
}
}
/* unknown/unknown, application/unknown, * / * */
if ((lwc_string_caseless_isequal(ct->media_type, unknown_unknown,
&match) == lwc_error_ok && match) ||
(lwc_string_caseless_isequal(ct->media_type,
application_unknown, &match) == lwc_error_ok &&
match) ||
(lwc_string_caseless_isequal(ct->media_type, any,
&match) == lwc_error_ok && match)) {
http_content_type_destroy(ct);
return mimesniff__compute_unknown(data, len, effective_type);
}
/* +xml */
if (lwc_string_length(ct->media_type) > SLEN("+xml") &&
strncasecmp(lwc_string_data(ct->media_type) +
lwc_string_length(ct->media_type) -
SLEN("+xml"),
"+xml", SLEN("+xml")) == 0) {
/* Use official type */
*effective_type = lwc_string_ref(ct->media_type);
http_content_type_destroy(ct);
return NSERROR_OK;
}
/* text/xml, application/xml */
if ((lwc_string_caseless_isequal(ct->media_type, text_xml,
&match) == lwc_error_ok && match) ||
(lwc_string_caseless_isequal(ct->media_type,
application_xml, &match) == lwc_error_ok &&
match)) {
/* Use official type */
*effective_type = lwc_string_ref(ct->media_type);
http_content_type_destroy(ct);
return NSERROR_OK;
}
/* Image types */
if (content_factory_type_from_mime_type(ct->media_type) ==
CONTENT_IMAGE) {
lwc_string *official_type = lwc_string_ref(ct->media_type);
http_content_type_destroy(ct);
return mimesniff__compute_image(official_type,
data, len, effective_type);
}
/* text/html */
if ((lwc_string_caseless_isequal(ct->media_type, text_html,
&match) == lwc_error_ok && match)) {
http_content_type_destroy(ct);
return mimesniff__compute_feed_or_html(data, len,
effective_type);
}
/* Use official type */
*effective_type = lwc_string_ref(ct->media_type);
http_content_type_destroy(ct);
return NSERROR_OK;
}
/**
* Clone a content's data members
*
* \param c Content to clone
* \param nc Content to populate
* \return NSERROR_OK on success, appropriate error otherwise
*/
nserror content__clone(const struct content *c, struct content *nc)
{
nserror error;
error = llcache_handle_clone(c->llcache, &(nc->llcache));
if (error != NSERROR_OK) {
return error;
}
llcache_handle_change_callback(nc->llcache,
content_llcache_callback, nc);
nc->mime_type = lwc_string_ref(c->mime_type);
nc->handler = c->handler;
nc->status = c->status;
nc->width = c->width;
nc->height = c->height;
nc->available_width = c->available_width;
nc->quirks = c->quirks;
if (c->fallback_charset != NULL) {
nc->fallback_charset = strdup(c->fallback_charset);
if (nc->fallback_charset == NULL) {
return NSERROR_NOMEM;
}
}
if (c->refresh != NULL) {
nc->refresh = nsurl_ref(c->refresh);
if (nc->refresh == NULL) {
return NSERROR_NOMEM;
}
}
nc->time = c->time;
nc->reformat_time = c->reformat_time;
nc->size = c->size;
if (c->title != NULL) {
nc->title = strdup(c->title);
if (nc->title == NULL) {
return NSERROR_NOMEM;
}
}
nc->active = c->active;
nc->user_list = calloc(1, sizeof(struct content_user));
if (nc->user_list == NULL) {
return NSERROR_NOMEM;
}
memcpy(&(nc->status_message), &(c->status_message), 120);
memcpy(&(nc->sub_status), &(c->sub_status), 80);
nc->locked = c->locked;
nc->total_size = c->total_size;
nc->http_code = c->http_code;
return NSERROR_OK;
}
