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[project @ 2004-04-05 22:36:48 by jmb]

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Tidy up handling of save_complete_list.
Fix rewriting of <style> elements to cater for hidden elements.

svn path=/import/netsurf/; revision=724
This commit is contained in:
John Mark Bell 2004-04-05 22:36:48 +00:00
parent ce93fe5cc0
commit 8961ddc366
1 changed files with 63 additions and 70 deletions
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119
riscos/save_complete.c
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@ -38,16 +38,19 @@ struct save_complete_entry {
struct save_complete_entry *next; /**< Next entry in list */
};
/** List of urls seen and saved so far. */
static struct save_complete_entry *save_complete_list;
static void save_complete_internal(struct content *c, const char *path,
bool index);
static void save_imported_sheets(struct save_complete_entry **save_complete_list, struct content *c, const char *path);
static char * rewrite_stylesheet_urls(struct save_complete_entry *save_complete_list, const char *source, unsigned int size,
static void save_imported_sheets(struct content *c, const char *path);
static char * rewrite_stylesheet_urls(const char *source, unsigned int size,
int *osize, const char *base);
static int rewrite_document_urls(struct save_complete_entry *save_complete_list, xmlDoc *doc, const char *base);
static int rewrite_urls(struct save_complete_entry *save_complete_list, xmlNode *n, const char *base);
static void rewrite_url(struct save_complete_entry *save_complete_list, xmlNode *n, const char *attr, const char *base);
static void save_complete_add_url(struct save_complete_entry **save_complete_list, const char *url, int id);
static int save_complete_find_url(struct save_complete_entry *save_complete_list, const char *url);
static int rewrite_document_urls(xmlDoc *doc, const char *base);
static int rewrite_urls(xmlNode *n, const char *base);
static void rewrite_url(xmlNode *n, const char *attr, const char *base);
static void save_complete_add_url(const char *url, int id);
static int save_complete_find_url(const char *url);
/**
@ -60,12 +63,19 @@ static int save_complete_find_url(struct save_complete_entry *save_complete_list
void save_complete(struct content *c, const char *path)
{
save_complete_internal(c, path, true);
/* free save_complete_list */
while (save_complete_list) {
struct save_complete_entry *next = save_complete_list->next;
free(save_complete_list->url);
free(save_complete_list);
save_complete_list = next;
}
}
/**
* Save an HTML page with all dependencies, recursing through imported pages.
*
* \param save_complete_list head of list of URLs
* \param c CONTENT_HTML to save
* \param path directory to save to (must exist)
*/
@ -75,9 +85,6 @@ void save_complete_internal(struct content *c, const char *path, bool index)
char spath[256];
unsigned int i;
htmlParserCtxtPtr toSave;
/** List of urls seen and saved so far. One per HTML document */
struct save_complete_entry *save_complete_list;
if (c->type != CONTENT_HTML)
return;
@ -93,16 +100,15 @@ void save_complete_internal(struct content *c, const char *path, bool index)
if (!css)
continue;
save_complete_add_url(&save_complete_list, css->url, (int) css);
save_complete_add_url(css->url, (int) css);
save_imported_sheets(&save_complete_list, css, path);
save_imported_sheets(css, path);
if (i == 1) continue; /* don't save <style> elements */
snprintf(spath, sizeof spath, "%s.%x", path,
(unsigned int) css);
source = rewrite_stylesheet_urls(save_complete_list,
css->source_data,
source = rewrite_stylesheet_urls(css->source_data,
css->source_size, &source_len, css->url);
if (source) {
xosfile_save_stamped(spath, 0xf79, source,
@ -119,7 +125,7 @@ void save_complete_internal(struct content *c, const char *path, bool index)
if (!obj || obj->type >= CONTENT_OTHER || !obj->source_data)
continue;
save_complete_add_url(&save_complete_list, obj->url, (int) obj);
save_complete_add_url(obj->url, (int) obj);
if (obj->type == CONTENT_HTML) {
save_complete_internal(obj, path, false);
@ -139,7 +145,7 @@ void save_complete_internal(struct content *c, const char *path, bool index)
htmlParseDocument(toSave);
/* rewrite all urls we know about */
if (rewrite_document_urls(save_complete_list, toSave->myDoc, c->data.html.base_url) == 0) {
if (rewrite_document_urls(toSave->myDoc, c->data.html.base_url) == 0) {
xfree(spath);
xmlFreeDoc(toSave->myDoc);
htmlFreeParserCtxt(toSave);
@ -156,25 +162,15 @@ void save_complete_internal(struct content *c, const char *path, bool index)
xmlFreeDoc(toSave->myDoc);
htmlFreeParserCtxt(toSave);
/* free save_complete_list */
while (save_complete_list) {
struct save_complete_entry *next = save_complete_list->next;
free(save_complete_list->url);
free(save_complete_list);
save_complete_list = next;
}
}
/**
* Save all imported stylesheets
*
* \param save_complete_list head of list of URLs
* \param c The content containing the stylesheet
* \param path Path to save to
*/
void save_imported_sheets(struct save_complete_entry **save_complete_list,
struct content *c, const char *path)
void save_imported_sheets(struct content *c, const char *path)
{
char spath[256];
unsigned int j;
@ -187,14 +183,13 @@ void save_imported_sheets(struct save_complete_entry **save_complete_list,
if (!css)
continue;
save_complete_add_url(save_complete_list, css->url, (int) css);
save_complete_add_url(css->url, (int) css);
save_imported_sheets(save_complete_list, css, path);
save_imported_sheets(css, path);
snprintf(spath, sizeof spath, "%s.%x", path,
(unsigned int) css);
source = rewrite_stylesheet_urls(*save_complete_list,
css->source_data,
source = rewrite_stylesheet_urls(css->source_data,
css->source_size, &source_len, css->url);
if (source) {
xosfile_save_stamped(spath, 0xf79, source,
@ -245,7 +240,6 @@ void save_complete_init(void)
/**
* Rewrite stylesheet @import rules for save complete.
*
* \param save_complete_list head of list of URLs
* @param source stylesheet source
* @param size size of source
* @param osize updated with the size of the result
@ -253,7 +247,7 @@ void save_complete_init(void)
* @return converted source, or 0 on error
*/
char * rewrite_stylesheet_urls(struct save_complete_entry *save_complete_list, const char *source, unsigned int size,
char * rewrite_stylesheet_urls(const char *source, unsigned int size,
int *osize, const char *base)
{
char *res;
@ -339,7 +333,7 @@ char * rewrite_stylesheet_urls(struct save_complete_entry *save_complete_list, c
memcpy(res + *osize, source + offset, match[0].rm_so);
*osize += match[0].rm_so;
id = save_complete_find_url(save_complete_list, url);
id = save_complete_find_url(url);
if (id) {
/* replace import */
sprintf(buf, "@import '%x'", id);
@ -369,14 +363,12 @@ char * rewrite_stylesheet_urls(struct save_complete_entry *save_complete_list, c
/**
* Rewrite URLs in a HTML document to be relative
*
* \param save_complete_list head of list of URLs
* @param doc The root of the document tree
* @return 0 on error. >0 otherwise
* \param base base url of document
*/
int rewrite_document_urls(struct save_complete_entry *save_complete_list,
xmlDoc *doc, const char *base)
int rewrite_document_urls(xmlDoc *doc, const char *base)
{
xmlNode *html;
@ -389,7 +381,7 @@ int rewrite_document_urls(struct save_complete_entry *save_complete_list,
return 0;
}
rewrite_urls(save_complete_list, html, base);
rewrite_urls(html, base);
return 1;
}
@ -398,14 +390,12 @@ int rewrite_document_urls(struct save_complete_entry *save_complete_list,
/**
* Traverse tree, rewriting URLs as we go.
*
* \param save_complete_list head of list of URLs
* \param base base url of document
* @param n The root of the tree
* @return 0 on error. >0 otherwise
*/
int rewrite_urls(struct save_complete_entry *save_complete_list, xmlNode *n,
const char *base)
int rewrite_urls(xmlNode *n, const char *base)
{
xmlNode *this;
@ -422,14 +412,14 @@ int rewrite_urls(struct save_complete_entry *save_complete_list, xmlNode *n,
if (n->type == XML_ELEMENT_NODE) {
/* 1 */
if (strcmp(n->name, "object") == 0) {
rewrite_url(save_complete_list, n, "data", base);
rewrite_url(n, "data", base);
}
/* 2 */
else if (strcmp(n->name, "a") == 0 ||
strcmp(n->name, "area") == 0 ||
strcmp(n->name, "link") == 0 ||
strcmp(n->name, "base") == 0) {
rewrite_url(save_complete_list, n, "href", base);
rewrite_url(n, "href", base);
}
/* 3 */
else if (strcmp(n->name, "frame") == 0 ||
@ -437,28 +427,37 @@ int rewrite_urls(struct save_complete_entry *save_complete_list, xmlNode *n,
strcmp(n->name, "input") == 0 ||
strcmp(n->name, "img") == 0 ||
strcmp(n->name, "script") == 0) {
rewrite_url(save_complete_list, n, "src", base);
rewrite_url(n, "src", base);
}
/* 4 */
else if (strcmp(n->name, "style") == 0) {
unsigned int len;
xmlChar *content;
for (this = n->children; this != 0; this = this->next) {
/* Get current content */
xmlChar *content = xmlNodeGetContent(n);
if (!content) return 0;
content = xmlNodeGetContent(n);
if (!content) continue;
/* Rewrite @import rules */
char *rewritten = rewrite_stylesheet_urls(
save_complete_list,
content,
strlen((char*)content),
&len, base);
if (!rewritten) return 0;
if (!rewritten) {
xmlFree(content);
continue;
}
/* set new content */
xmlNodeSetContentLen(n, (const xmlChar*)rewritten,
xmlNodeSetContentLen(n,
(const xmlChar*)rewritten,
len);
/* free old content */
xmlFree(content);
}
return 1;
}
}
@ -468,7 +467,7 @@ int rewrite_urls(struct save_complete_entry *save_complete_list, xmlNode *n,
/* now recurse */
for (this = n->children; this != 0; this = this->next) {
rewrite_urls(save_complete_list, this, base);
rewrite_urls(this, base);
}
return 1;
@ -478,14 +477,12 @@ int rewrite_urls(struct save_complete_entry *save_complete_list, xmlNode *n,
/**
* Rewrite an URL in a HTML document.
*
* \param save_complete_list head of list of URLs
* \param n The node to modify
* \param attr The html attribute to modify
* \param base base url of document
*/
void rewrite_url(struct save_complete_entry *save_complete_list, xmlNode *n,
const char *attr, const char *base)
void rewrite_url(xmlNode *n,const char *attr, const char *base)
{
char *url, *data;
char rel[256];
@ -501,7 +498,7 @@ void rewrite_url(struct save_complete_entry *save_complete_list, xmlNode *n,
return;
}
id = save_complete_find_url(save_complete_list, url);
id = save_complete_find_url(url);
if (id) {
/* found a match */
snprintf(rel, sizeof rel, "%x", id);
@ -519,13 +516,11 @@ void rewrite_url(struct save_complete_entry *save_complete_list, xmlNode *n,
/**
* Add a url to the save_complete_list.
*
* \param save_complete_list head of list of URLs
* \param url url to add (copied)
* \param id id to use for url
*/
void save_complete_add_url(struct save_complete_entry **save_complete_list,
const char *url, int id)
void save_complete_add_url(const char *url, int id)
{
struct save_complete_entry *entry;
entry = malloc(sizeof (*entry));
@ -537,22 +532,20 @@ void save_complete_add_url(struct save_complete_entry **save_complete_list,
return;
}
entry->ptr = id;
entry->next = *save_complete_list;
*save_complete_list = entry;
entry->next = save_complete_list;
save_complete_list = entry;
}
/**
* Look up a url in the save_complete_list.
*
* \param save_complete_list head of list of URLs
* \param url url to find
* \param len length of url
* \return id to use for url, or 0 if not present
*/
int save_complete_find_url(struct save_complete_entry *save_complete_list,
const char *url)
int save_complete_find_url(const char *url)
{
struct save_complete_entry *entry;
for (entry = save_complete_list; entry; entry = entry->next)