mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-11-06 00:55:37 +00:00
811 lines
21 KiB
C++
811 lines
21 KiB
C++
#include "nsIRelatedLinks.h"
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#include "net.h"
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#include "merrors.h"
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#include "plstr.h"
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#include "proto.h"
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typedef uint8 RL_LOAD_STATUS;
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char* relatedLinksProvider = NULL;
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#define RL_STATUS_WAITING_TO_LOAD 1
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#define RL_STATUS_LOADING 2
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#define RL_STATUS_ABORTED 3
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#define RL_STATUS_COMPLETED 4
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#define RL_STATUS_NOT_AVAILABLE 5
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#define RL_MAX_URL 300
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#define RL_LINE_SIZE 1024
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extern int XP_RL_FETCHING;
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extern int XP_RL_UNAVAILABLE;
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#define validRLItem(item) ((item->type == RL_CONTAINER) || (item->type == RL_SEPARATOR) || (item->type == RL_LINK) || (item->type == RL_LINK_NEW_WINDOW))
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int32 gInitialDiff = 4;
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int32 gMaxDiff = 4;
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PRBool enableRelatedLinksp = 1;
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struct _RL_Window {
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char* url;
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char* rlurl;
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RL_LOAD_STATUS status;
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uint8 parseStatus;
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uint8 type;
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char* holdOver;
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char* line;
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struct _RL_Item* items;
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uint8 diff;
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uint8 count;
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void* fe_data;
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struct _RL_Item* stack[3];
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uint8 depth;
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RLCallBackProc callBack;
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URL_Struct *currentlyLoading;
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struct _RL_Item* prevItems;
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PRBool demoUrlp;
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};
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struct _RL_Item {
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RL_ItemType type;
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char* name;
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char* convertedName;
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char* url;
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char* rurl;
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struct _RL_Item* child;
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struct _RL_Item* next;
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};
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typedef struct _RL_Get {
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RL_Window win;
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URL_Struct *url;
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} *RL_Get;
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typedef struct _RL_SpecialItems {
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RL_Item loading;
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RL_Item noData;
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RL_Item disabled;
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} *RL_SpecialItems;
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typedef struct _RL_EquivBucket {
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char* jumpPoint;
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char* seenAt;
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struct _RL_EquivBucket* next;
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} *RL_EquivBucket;
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RL_SpecialItems gRLSpecial = 0;
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void RL_DestroyRLWindow(RL_Window win);
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void RL_SetRLWindowURL(RL_Window win, char* url);
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RL_Item RL_WindowItems (RL_Window win);
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RL_Item RL_NextItem(RL_Item item);
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RL_Item RL_ItemChild(RL_Item item);
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uint8 RL_ItemCount(RL_Window win);
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RL_ItemType RL_GetItemType(RL_Item item);
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char* RL_ItemName(RL_Item item);
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char* RL_ItemUrl(RL_Item item);
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typedef void (*RLCallBackProc)(void* pdata, RL_Window win);
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RL_Window RL_MakeRLWindowWithCallback(RLCallBackProc callBack, void* fedata);
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void freeMem(void* x);
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RL_Window RL_MakeRLWindow();
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void RL_DestroyRLWindow(RL_Window win);
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void RL_EnableRelatedLinks();
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void RL_DisableRelatedLinks();
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void RL_SetRLWindowURL(RL_Window win, char* url);
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void RL_AddItem (RL_Window win, char* url, char* name, uint8 type);
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RL_Item RL_WindowItems (RL_Window win);
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RL_Item RL_NextItem(RL_Item item);
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RL_ItemType RL_GetItemType(RL_Item item);
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char* RL_ItemName(RL_Item item);
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char* RL_ItemUrl(RL_Item item);
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void GetRL (RL_Window win);
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void cleanRLTree(RL_Item item);
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MWContext* GetRLContext(RL_Window win);
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void rl_GetUrlExitFunc (URL_Struct *urls, int status, MWContext *cx) ;
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void TryLoadRLFromCache(RL_Window win) ;
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void parseNextRDFXMLBlob (RL_Window f, char* blob, int32 size) ;
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void parseNextRDFToken (RL_Window f, char* token) ;
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void extractAttributes (char* attr, char** attlist) ;
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PRBool tokenEquals(char* token, char* string, PRBool endp);
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char* getAttributeValue(char** attlist, char* elName);
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PUBLIC NET_StreamClass* RL_Converter(FO_Present_Types format_out, void
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*data_object, URL_Struct *URL_s, MWContext *window_id) ;
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int rl_write(void *obj, const char *str, int32 len) ;
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unsigned int rl_write_ready(void *obj) ;
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void rl_abort(void *obj, int status) ;
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void rl_complete (void *obj) ;
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PRBool startsWith (char* pattern, char* uuid) ;
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PRBool rlStartsWith (char* pattern, char* uuid) ;
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int16 charSearch (char c, char* data) ;
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/*char* copyString (char* source) ; */
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void parseNextRLBlob (RL_Window f, char* blob, int32 len) ;
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void parseNextAlexaLine (RL_Window f, char* line) ;
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static PRBool findNextDomain(const char *inDomains, size_t *ioBegin,
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size_t *outEnd);
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static PRBool nextDomain (char* dom, size_t *n, size_t maxLength);
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static PRBool validateDomain(const char *inDomains, size_t inBegin,
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size_t inEnd);
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class nsRelatedLinks: public nsIRelatedLinks {
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public:
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nsRelatedLinks() {
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NS_INIT_REFCNT();
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}
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NS_DECL_ISUPPORTS
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void DestroyRLWindow (RL_Window win) {
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RL_DestroyRLWindow (win);
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}
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void SetRLWindowURL (RL_Window win, char* url) {
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RL_SetRLWindowURL (win, url);
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}
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RL_Item WindowItems (RL_Window win) {
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return RL_WindowItems (win);
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}
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RL_Item NextItem (RL_Item item) {
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return RL_NextItem (item);
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}
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RL_Item ItemChild (RL_Item item) {
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return RL_ItemChild (item);
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}
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uint8 ItemCount (RL_Window win) {
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return RL_ItemCount (win);
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}
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RL_ItemType GetItemType (RL_Item item) {
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return RL_GetItemType (item);
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}
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char* ItemName (RL_Item item) {
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return RL_ItemName (item);
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}
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char* ItemUrl (RL_Item item) {
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return RL_ItemUrl (item);
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}
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RL_Window MakeRLWindowWithCallback(RLCallBackProc callBack, void*fedata) {
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return RL_MakeRLWindowWithCallback(callBack,fedata);
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}
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};
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NS_IMPL_ADDREF(nsRelatedLinks)
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NS_IMPL_RELEASE(nsRelatedLinks)
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NS_DEFINE_IID(kIRelatedLinksIID, NS_IRELATEDLINKS_IID);
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nsresult nsRelatedLinks::QueryInterface(const nsIID &aIID, void** aInstancePtr)
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{
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if (NULL == aInstancePtr) {
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return NS_ERROR_NULL_POINTER;
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}
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static NS_DEFINE_IID(kISupportsIID, NS_ISUPPORTS_IID);
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if (aIID.Equals(kISupportsIID)) {
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*aInstancePtr = (void*) ((nsISupports *)this);
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AddRef();
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return NS_OK;
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}
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if (aIID.Equals(kIRelatedLinksIID)) {
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*aInstancePtr = (void*) ((nsIRelatedLinks *)this);
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AddRef();
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return NS_OK;
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}
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return NS_NOINTERFACE;
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}
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extern "C" nsIRelatedLinks * NS_NewRelatedLinks(void) {
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nsRelatedLinks * pIObject= new nsRelatedLinks;
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if (pIObject) {
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pIObject->AddRef();
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return (nsIRelatedLinks*)pIObject;
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}
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return nsnull;
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}
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#define copyString(x) PL_strdup(x)
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PRBool startsWith (char* pattern, char* uuid) {
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short l1 = strlen(pattern);
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short l2 = strlen(uuid);
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if (l2 < l1) return PR_FALSE;
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return (strncmp(pattern, uuid, l1) == 0) ? PR_TRUE : PR_FALSE;
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}
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PRBool rlStartsWith (char* pattern, char* uuid) {
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short l1 = strlen(pattern);
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short l2 = strlen(uuid);
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short index;
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if (l2 < l1) return PR_FALSE;
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for (index = 0; index < l1; index++) {
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if ((index == l1-1) && (pattern[index] == '*')) return PR_TRUE;
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if (pattern[index] != uuid[index]) return PR_FALSE;
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}
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return PR_TRUE;
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}
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int16 charSearch (char c, char* data) {
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int32 l1 = strlen(data);
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int16 index;
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for (index = 0; index < l1; index++) {
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if (data[index] == c) return index;
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}
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return -1;
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}
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char* getMem(size_t x) {
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char* ans = (char *)calloc(1,(x));
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if (ans != NULL) {
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memset(ans, '\0', x);
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} else {
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ans = 0;
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}
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return ans;
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}
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RL_Item makeRLItem (char* name, char* url) {
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RL_Item item = (RL_Item) getMem(sizeof(struct _RL_Item));
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if (item) {
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item->name = name;
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item->url = url;
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item->type = RL_LINK;
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return item;
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} else return NULL;
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}
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PRBool specialItemp (RL_Item item) {
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return ((item == gRLSpecial->loading) ||
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(item == gRLSpecial->noData) ||
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(item == gRLSpecial->disabled)) ? PR_TRUE : PR_FALSE;
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}
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void readRLPrefs () {
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int32 autoload = -1;
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}
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extern "C" void RL_Init () {
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gRLSpecial = (RL_SpecialItems)getMem(sizeof(struct _RL_SpecialItems));
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if (gRLSpecial == NULL) {
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enableRelatedLinksp = 0;
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}
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gRLSpecial->loading = makeRLItem("Fetching ...", NULL);
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gRLSpecial->noData = makeRLItem("No data available", NULL);
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gRLSpecial->disabled = makeRLItem("Related Links Disabled", NULL);
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if (gRLSpecial->loading == NULL || gRLSpecial->noData == NULL ||
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gRLSpecial->disabled == NULL) {
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enableRelatedLinksp = 0;
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freeMem(gRLSpecial->loading);
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freeMem(gRLSpecial->noData);
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freeMem(gRLSpecial->disabled);
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}
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NET_RegisterContentTypeConverter( "*", FO_CACHE_AND_RDF, NULL,
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NET_CacheConverter);
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NET_RegisterContentTypeConverter( "*", FO_RDF, NULL, RL_Converter);
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enableRelatedLinksp = 1;
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gInitialDiff = gMaxDiff = 4;
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relatedLinksProvider = copyString("http://www-rl.netscape.com/wtgn?");
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}
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void freeMem(void* x) {
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if (x != NULL) free(x);
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}
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static RL_Window gRLWindow = 0;
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RL_Window RL_MakeRLWindowWithCallback (RLCallBackProc callBack, void*
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fe_data) {
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RL_Window win = RL_MakeRLWindow();
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if (win == NULL) return NULL;
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win->callBack = callBack;
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win->fe_data = fe_data;
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gRLWindow = win;
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return win;
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}
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RL_Window RL_MakeRLWindow() {
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RL_Window ans = (RL_Window) getMem(sizeof(struct _RL_Window));
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if (ans == NULL) return NULL;
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ans->line = getMem(RL_LINE_SIZE);
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if (ans->line == NULL) {
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freeMem(ans);
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return NULL;
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}
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ans->holdOver = getMem(RL_LINE_SIZE);
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if (ans->holdOver == NULL) {
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freeMem(ans->line);
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freeMem(ans);
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return NULL;
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}
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ans->rlurl = getMem(RL_MAX_URL);
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if (ans->rlurl == NULL) {
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freeMem(ans->line);
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freeMem(ans->rlurl);
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freeMem(ans);
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return NULL;
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}
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ans->diff = gInitialDiff;
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return ans;
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}
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void RL_DestroyRLWindow(RL_Window win) {
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if (!win) return;
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cleanRLTree(win->prevItems);
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cleanRLTree(win->items);
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if (win->currentlyLoading) {
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win->currentlyLoading->fe_data = NULL; /* |fe_data| is really |win|
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and will be */
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/* disposed of below */
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NET_InterruptStream (win->currentlyLoading);
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}
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freeMem(win->line);
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freeMem(win->holdOver);
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freeMem(win);
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}
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PRBool implicitDomainURL (char* url) {
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uint16 n = 7;
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uint16 size = strlen(url);
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while (n < size) {
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if (url[n] == '/') return PR_TRUE;
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if (url[n] == '.') return PR_FALSE;
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n++;
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}
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return PR_TRUE;
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}
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PRBool relatedLinksEnabledURL (char* url) {
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if (url == NULL) return PR_FALSE;
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if (strlen(url) > 300) return PR_FALSE;
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if (!startsWith("http:", url)) {
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return PR_FALSE;
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} else if (implicitDomainURL(url)) {
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return PR_FALSE;
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} else return PR_TRUE;
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}
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PRBool getRLURL (RL_Window win, char* url) {
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size_t n, m, l;
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memset(win->rlurl, '\0', RL_MAX_URL);
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if (!win->demoUrlp) {
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if (!strstr(url, "http://")) return PR_FALSE;
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}
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if (strlen(url) > 370) return PR_FALSE;
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sprintf(win->rlurl, "%s", relatedLinksProvider);
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n = strlen(relatedLinksProvider) ;
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m = (win->demoUrlp ? 25 : 7);
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l = strlen(url);
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while (m < l) {
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if ((url[m] == '?') || (url[m] == '#') || (url[m] == '@')) {
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win->rlurl[n++] = url[m++];
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break;
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}
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win->rlurl[n++] = url[m++];
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}
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return PR_TRUE;
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}
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void RL_SetRLWindowURL(RL_Window win, char* url) {
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if (!win || !relatedLinksProvider || !enableRelatedLinksp) return;
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cleanRLTree(win->prevItems);
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win->prevItems = win->items;
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win->items = NULL;
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freeMem(win->url);
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win->url = NULL;
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if (win->currentlyLoading != NULL) {
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NET_InterruptStream (win->currentlyLoading);
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win->currentlyLoading = NULL;
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}
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win->count = 0;
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if (win->url && url && !strcmp(url,win->url)) return;
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win->demoUrlp = startsWith("file:///c%7C/NS1998Demos", url);
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if (!win->demoUrlp && !relatedLinksEnabledURL(url)) {
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win->status = RL_STATUS_NOT_AVAILABLE;
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return;
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}
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if (!getRLURL(win, url)) return;
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win->url = copyString(url);
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win->diff++;
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if (win->diff < gMaxDiff) {
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win->status = RL_STATUS_LOADING;
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GetRL(win);
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} else {
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win->status = RL_STATUS_WAITING_TO_LOAD;
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}
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}
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void cleanRLTree (RL_Item item) {
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while (item) {
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RL_Item old = item;
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freeMem(item->name);
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PL_strfree(item->convertedName);
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freeMem(item->rurl);
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item->name = item->url = NULL;
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if (item->child) cleanRLTree(item->child);
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item->child = NULL;
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item = item->next;
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freeMem(old);
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}
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}
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void RL_AddItem (RL_Window win, char* nurl, char* name, uint8 type) {
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if (win != NULL && (win->status == RL_STATUS_LOADING)) {
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RL_Item item = (RL_Item)getMem(sizeof(struct _RL_Item));
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PRBool zerop = (win->count == 0) ? PR_TRUE : PR_FALSE;
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RL_Item existing;
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char* url = NULL;
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if (nurl) url = strstr(&nurl[7], "http://");
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if (!url) url = nurl;
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if (item == NULL) return;
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item->rurl = nurl;
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item->name = name;
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item->url = url;
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item->type = type;
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win->count++;
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existing = (win->depth == 0 ? win->items : win->stack[win->depth-1]->child);
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if (!existing) {
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if (win->depth == 0) {
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win->items = item;
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} else {
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win->stack[win->depth-1]->child = item;
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}
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} else {
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while (existing->next) {
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if (existing->url && url && (strcmp(existing->url, url) == 0)) {
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freeMem(item);
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return;
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}
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existing = existing->next;
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}
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existing->next = item;
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}
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if (type == RL_CONTAINER) win->stack[win->depth++] = item;
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}
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}
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RL_Item RL_WindowItems (RL_Window win) {
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if ((win != NULL) && (win->rlurl[0] != '\0') && enableRelatedLinksp) {
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win->diff = 0;
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gInitialDiff = 0;
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if (win->items) {
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return win->items;
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} else if (win->status == RL_STATUS_WAITING_TO_LOAD) {
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win->status = RL_STATUS_LOADING;
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GetRL(win);
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if (win->items == NULL) return gRLSpecial->loading;
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return win->items;
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} else if (win->status == RL_STATUS_LOADING) {
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return gRLSpecial->loading;
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} else return gRLSpecial->noData;
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} else if (!enableRelatedLinksp) {
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return gRLSpecial->disabled;
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} else return gRLSpecial->noData;
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}
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void RL_PossiblyLoad (RL_Window win) {
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if ((win != NULL) && (win->diff < gMaxDiff) && enableRelatedLinksp &&
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(win->status == RL_STATUS_WAITING_TO_LOAD)) {
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win->status = RL_STATUS_LOADING;
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GetRL(win);
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}
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}
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RL_Item RL_NextItem(RL_Item item) {
|
|
if (!validRLItem(item)) return NULL;
|
|
return item->next;
|
|
}
|
|
|
|
RL_Item RL_ItemChild(RL_Item item) {
|
|
if (!validRLItem(item)) return NULL;
|
|
return item->child;
|
|
}
|
|
|
|
uint8 RL_ItemCount(RL_Window win) {
|
|
return (win->count ? win->count : 1);
|
|
}
|
|
|
|
|
|
RL_ItemType RL_GetItemType(RL_Item item) {
|
|
if (!validRLItem(item)) return NULL;
|
|
return item->type;
|
|
}
|
|
|
|
char* RL_ItemName(RL_Item item) {
|
|
if (!validRLItem(item)) return NULL;
|
|
return item->name;
|
|
}
|
|
|
|
|
|
char* RL_ItemUrl(RL_Item item) {
|
|
if (!validRLItem(item)) return NULL;
|
|
return item->url;
|
|
}
|
|
|
|
|
|
char* RL_WinReferer(RL_Window win) {
|
|
return win->rlurl;
|
|
}
|
|
|
|
void GetRL (RL_Window win) {
|
|
URL_Struct *urls;
|
|
|
|
if (!enableRelatedLinksp) return;
|
|
/* XP_Trace("\nFetching %s", win->rlurl); */
|
|
urls = NET_CreateURLStruct(win->rlurl, NET_DONT_RELOAD);
|
|
if (urls == NULL) return;
|
|
|
|
urls->load_background = TRUE;
|
|
urls->fe_data = win; /* hookup url_struct to RL_Window and vice
|
|
versa */
|
|
win->currentlyLoading = urls; /* so you can get one from the other */
|
|
|
|
win->status = RL_STATUS_LOADING;
|
|
MWContext * pContext = XP_FindContextOfType(0,MWContextBrowser);
|
|
NET_GetURL(urls, FO_CACHE_AND_RDF, pContext,
|
|
rl_GetUrlExitFunc);
|
|
|
|
}
|
|
|
|
|
|
|
|
void rl_GetUrlExitFunc (URL_Struct *urls, int status, MWContext *cx) {
|
|
if (urls != NULL) {
|
|
RL_Window win = (RL_Window)urls->fe_data;
|
|
if ( win != NULL ) {
|
|
win->status = RL_STATUS_ABORTED;
|
|
/* if (win->callBack) (*(win->callBack))(win->fe_data, win); */
|
|
NET_FreeURLStruct (urls);
|
|
}
|
|
}
|
|
}
|
|
|
|
PUBLIC NET_StreamClass *
|
|
RL_Converter(FO_Present_Types format_out, void *data_object,
|
|
URL_Struct *URL_s, MWContext *window_id) {
|
|
NET_StreamClass* stream;
|
|
RL_Window rl = (RL_Window) URL_s->fe_data;
|
|
RL_Get rg;
|
|
|
|
/* XP_Trace("\nSetting up display stream. Have URL: %s\n",
|
|
URL_s->address); */
|
|
if ((rl == NULL) || (rl->status != RL_STATUS_LOADING))
|
|
return NULL;
|
|
|
|
rg = (RL_Get) getMem(sizeof(struct _RL_Get));
|
|
memset(rl->line, '\0', RL_LINE_SIZE);
|
|
memset(rl->holdOver, '\0', RL_LINE_SIZE);
|
|
rg->win = rl;
|
|
rl->depth = 0;
|
|
rg->url = URL_s;
|
|
rl->currentlyLoading = URL_s;
|
|
|
|
stream = NET_NewStream("RL",
|
|
(MKStreamWriteFunc)rl_write,
|
|
(MKStreamCompleteFunc)rl_complete,
|
|
(MKStreamAbortFunc)rl_abort,
|
|
(MKStreamWriteReadyFunc)rl_write_ready,
|
|
rg, window_id);
|
|
|
|
return(stream);
|
|
}
|
|
|
|
|
|
int rl_write(void *obj, const char *str, int32 len) {
|
|
RL_Get rg = (RL_Get)obj;
|
|
RL_Window win;
|
|
if (obj == NULL || len < 0) {
|
|
return MK_INTERRUPTED;
|
|
}
|
|
win = gRLWindow;
|
|
/* if (rg->url != win->currentlyLoading) return len; */
|
|
parseNextRDFXMLBlob(win, (char *)str, len);
|
|
return(len);
|
|
}
|
|
|
|
unsigned int rl_write_ready(void *obj) {
|
|
return RL_LINE_SIZE;
|
|
}
|
|
|
|
void rl_abort(void *obj, int status) {
|
|
RL_Get rg = (RL_Get)obj;
|
|
RL_Window win ;
|
|
if (rg == NULL) return;
|
|
win = gRLWindow;
|
|
if (win->currentlyLoading == rg->url)
|
|
win->status = RL_STATUS_ABORTED;
|
|
if (win->callBack) (*(win->callBack))(win->fe_data, win);
|
|
freeMem(obj);
|
|
}
|
|
|
|
void rl_complete (void *obj) {
|
|
RL_Get rg = (RL_Get)obj;
|
|
RL_Window win;
|
|
if (rg == NULL) return;
|
|
win = gRLWindow;
|
|
if (win->currentlyLoading == rg->url) win->status =
|
|
RL_STATUS_COMPLETED;
|
|
win->currentlyLoading = NULL;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
#define MAX_ATTRIBUTES 9
|
|
|
|
void parseNextRDFXMLBlob (RL_Window f, char* blob, int32 size) {
|
|
int32 n, last, m;
|
|
PRBool somethingseenp = PR_FALSE;
|
|
n = last = 0;
|
|
|
|
while (n < size) {
|
|
char c = blob[n];
|
|
m = 0;
|
|
somethingseenp = PR_FALSE;
|
|
memset(f->line, '\0', RL_LINE_SIZE);
|
|
if (f->holdOver[0] != '\0') {
|
|
memcpy(f->line, f->holdOver, strlen(f->holdOver));
|
|
m = strlen(f->holdOver);
|
|
somethingseenp = PR_TRUE;
|
|
memset(f->holdOver, '\0', RL_LINE_SIZE);
|
|
}
|
|
while ((m < 300) && (c != '<') && (c != '>')) {
|
|
f->line[m] = c;
|
|
m++;
|
|
somethingseenp = (somethingseenp || ((c != ' ') && (c != '\r') &&
|
|
(c != '\n'))) ? PR_TRUE : PR_FALSE;
|
|
n++;
|
|
if (n < size) c = blob[n];
|
|
else break;
|
|
}
|
|
if (c == '>') f->line[m] = c;
|
|
n++;
|
|
if (m > 0) {
|
|
if ((c == '<') || (c == '>')) {
|
|
last = n;
|
|
if (c == '<') f->holdOver[0] = '<';
|
|
if (somethingseenp == 1) parseNextRDFToken(f, f->line);
|
|
} else if (size > last) {
|
|
memcpy(f->holdOver, f->line, m);
|
|
}
|
|
} else if (c == '<') f->holdOver[0] = '<';
|
|
}
|
|
}
|
|
|
|
void parseRDFProcessingInstruction (RL_Window win, char* token) {
|
|
char* attlist[MAX_ATTRIBUTES+1];
|
|
char* newServer;
|
|
extractAttributes(token, attlist);
|
|
newServer = getAttributeValue(attlist, "relatedLinksServer");
|
|
if (newServer) {
|
|
freeMem(relatedLinksProvider);
|
|
relatedLinksProvider = getMem(strlen(newServer));
|
|
if (relatedLinksProvider)
|
|
memcpy(relatedLinksProvider, newServer, strlen(newServer));
|
|
}
|
|
}
|
|
|
|
char* getAttributeValue (char** attlist, char* elName) {
|
|
size_t n = 0;
|
|
while ((n < MAX_ATTRIBUTES) && (*(attlist + n) != NULL)) {
|
|
if (strcmp(*(attlist + n), elName) == 0) return *(attlist + n + 1);
|
|
n = n + 2;
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
PRBool tokenEquals (char* token, char* elName, PRBool endp) {
|
|
if (endp) {
|
|
return ((token[1] == '/') && (strncmp(elName, &token[2],
|
|
strlen(elName)) ==0)) ? PR_TRUE : PR_FALSE;
|
|
} else {
|
|
return (strncmp(elName, &token[1], strlen(elName)) ==0) ? PR_TRUE :
|
|
PR_FALSE;
|
|
}
|
|
}
|
|
|
|
void parseNextRDFToken (RL_Window f, char* token) {
|
|
if (token[0] != '<') {
|
|
return;
|
|
} else if (tokenEquals(token, "RelatedLinks", PR_TRUE)) {
|
|
(*f->callBack)(f->fe_data, f);
|
|
|
|
} else if (tokenEquals(token, "Topic", PR_TRUE)) {
|
|
if (f->depth > 0) f->depth--;
|
|
} else if (token[1] == '?') {
|
|
parseRDFProcessingInstruction(f, token);
|
|
} else {
|
|
char* attlist[MAX_ATTRIBUTES+1];
|
|
extractAttributes(token, attlist);
|
|
if (tokenEquals(token, "aboutPage", PR_FALSE)) {
|
|
} else if (tokenEquals(token, "child", PR_FALSE)) {
|
|
char* url = getAttributeValue(attlist, "href");
|
|
char* name = getAttributeValue(attlist, "name");
|
|
char* type = getAttributeValue(attlist, "instanceOf");
|
|
if (url && name) RL_AddItem(f, copyString(url), copyString(name),
|
|
RL_LINK);
|
|
if (type && (strcmp(type, "Separator"))) RL_AddItem(f, NULL, NULL,
|
|
RL_SEPARATOR);
|
|
} else if (tokenEquals(token, "Topic", PR_FALSE)) {
|
|
char* name = getAttributeValue(attlist, "name");
|
|
if (name) RL_AddItem(f, NULL, copyString(name), RL_CONTAINER);
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
void extractAttributes (char* attr, char** attlist) {
|
|
size_t n = 1;
|
|
size_t s = strlen(attr);
|
|
char c ;
|
|
size_t m = 0;
|
|
size_t atc = 0;
|
|
PRBool emptyTagp = (attr[s-2] == '/') ? PR_TRUE : PR_FALSE;
|
|
PRBool inAttrNamep = PR_TRUE;
|
|
c = attr[n++];
|
|
while (n < s) {
|
|
if ((c == ' ') || (c == '\n') || (c == '\r')) break;
|
|
c = attr[n++];
|
|
}
|
|
while (atc < MAX_ATTRIBUTES+1) {*(attlist + atc++) = NULL;}
|
|
atc = 0;
|
|
s = (emptyTagp ? s-2 : s-1);
|
|
while (n < s) {
|
|
PRBool attributeOpenStringSeenp = PR_FALSE;
|
|
m = 0;
|
|
c = attr[n++];
|
|
while ((n <= s) && (atc < MAX_ATTRIBUTES)) {
|
|
if (inAttrNamep && (m > 0) && ((c == ' ') || (c == '\n') || (c ==
|
|
'\r') || (c == '='))) {
|
|
attr[n-1] = '\0';
|
|
*(attlist + atc++) = &attr[n-m-1];
|
|
break;
|
|
}
|
|
if (!inAttrNamep && attributeOpenStringSeenp && (c == '"')) {
|
|
attr[n-1] = '\0';
|
|
*(attlist + atc++) = &attr[n-m-1];
|
|
break;
|
|
}
|
|
if (inAttrNamep) {
|
|
if ((m > 0) || (c != ' ')) m++;
|
|
} else {
|
|
if (c == '"') {
|
|
attributeOpenStringSeenp = PR_TRUE;
|
|
} else {
|
|
if ((m > 0) || (c != ' ')) m++;
|
|
}
|
|
}
|
|
c = attr[n++];
|
|
}
|
|
inAttrNamep = (inAttrNamep ? PR_FALSE : PR_TRUE);
|
|
}
|
|
}
|