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pjs/webshell/tests/viewer/nsWebCrawler.cpp

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* The contents of this file are subject to the Netscape Public License
* Version 1.0 (the "License"); you may not use this file except in
* compliance with the License. You may obtain a copy of the License at
* http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS IS"
* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
* the License for the specific language governing rights and limitations
* under the License.
*
* The Original Code is Mozilla Communicator client code.
*
* The Initial Developer of the Original Code is Netscape Communications
* Corporation. Portions created by Netscape are Copyright (C) 1998
* Netscape Communications Corporation. All Rights Reserved.
*/
#include "nsCOMPtr.h"
#include "nsWebCrawler.h"
#include "nsViewerApp.h"
#include "nsIWebShell.h"
#include "nsIBrowserWindow.h"
#include "nsIContentViewer.h"
#include "nsIDocumentViewer.h"
#include "nsIDocument.h"
#include "nsIContent.h"
#include "nsIPresShell.h"
#include "nsIPresContext.h"
#include "nsIViewManager.h"
#include "nsIFrame.h"
#include "nsIURL.h"
#ifdef NECKO
#include "nsNeckoUtil.h"
#endif // NECKO
#include "nsITimer.h"
#include "nsIAtom.h"
#include "nsIFrameUtil.h"
#include "nsIComponentManager.h"
#include "nsLayoutCID.h"
#include "nsRect.h"
#include "plhash.h"
#include "nsINameSpaceManager.h"
static NS_DEFINE_IID(kIDocumentLoaderObserverIID, NS_IDOCUMENT_LOADER_OBSERVER_IID);
static NS_DEFINE_IID(kIDocumentViewerIID, NS_IDOCUMENT_VIEWER_IID);
static NS_DEFINE_IID(kFrameUtilCID, NS_FRAME_UTIL_CID);
static NS_DEFINE_IID(kIFrameUtilIID, NS_IFRAME_UTIL_IID);
static NS_DEFINE_IID(kIXMLContentIID, NS_IXMLCONTENT_IID);
static PLHashNumber
HashKey(nsIAtom* key)
{
return (PLHashNumber) key;
}
static PRIntn
CompareKeys(nsIAtom* key1, nsIAtom* key2)
{
return key1 == key2;
}
class AtomHashTable {
public:
AtomHashTable();
~AtomHashTable();
const void* Get(nsIAtom* aKey);
const void* Put(nsIAtom* aKey, const void* aValue);
const void* Remove(nsIAtom* aKey);
protected:
PLHashTable* mTable;
};
AtomHashTable::AtomHashTable()
{
mTable = PL_NewHashTable(8, (PLHashFunction) HashKey,
(PLHashComparator) CompareKeys,
(PLHashComparator) nsnull,
nsnull, nsnull);
}
static PR_CALLBACK PRIntn
DestroyEntry(PLHashEntry *he, PRIntn i, void *arg)
{
((nsIAtom*)he->key)->Release();
return HT_ENUMERATE_NEXT;
}
AtomHashTable::~AtomHashTable()
{
PL_HashTableEnumerateEntries(mTable, DestroyEntry, 0);
PL_HashTableDestroy(mTable);
}
/**
* Get the data associated with a Atom.
*/
const void*
AtomHashTable::Get(nsIAtom* aKey)
{
PRInt32 hashCode = (PRInt32) aKey;
PLHashEntry** hep = PL_HashTableRawLookup(mTable, hashCode, aKey);
PLHashEntry* he = *hep;
if (nsnull != he) {
return he->value;
}
return nsnull;
}
/**
* Create an association between a Atom and some data. This call
* returns an old association if there was one (or nsnull if there
* wasn't).
*/
const void*
AtomHashTable::Put(nsIAtom* aKey, const void* aData)
{
PRInt32 hashCode = (PRInt32) aKey;
PLHashEntry** hep = PL_HashTableRawLookup(mTable, hashCode, aKey);
PLHashEntry* he = *hep;
if (nsnull != he) {
const void* oldValue = he->value;
he->value = NS_CONST_CAST(void*, aData);
return oldValue;
}
NS_ADDREF(aKey);
PL_HashTableRawAdd(mTable, hep, hashCode, aKey, NS_CONST_CAST(void*, aData));
return nsnull;
}
/**
* Remove an association between a Atom and it's data. This returns
* the old associated data.
*/
const void*
AtomHashTable::Remove(nsIAtom* aKey)
{
PRInt32 hashCode = (PRInt32) aKey;
PLHashEntry** hep = PL_HashTableRawLookup(mTable, hashCode, aKey);
PLHashEntry* he = *hep;
void* oldValue = nsnull;
if (nsnull != he) {
oldValue = he->value;
PL_HashTableRawRemove(mTable, hep, he);
}
return oldValue;
}
//----------------------------------------------------------------------
nsWebCrawler::nsWebCrawler(nsViewerApp* aViewer)
{
NS_INIT_REFCNT();
mBrowser = nsnull;
mViewer = aViewer;
mTimer = nsnull;
mCrawl = PR_FALSE;
mJiggleLayout = PR_FALSE;
mPostExit = PR_FALSE;
mDelay = 0;
mMaxPages = -1;
mRecord = nsnull;
mLinkTag = NS_NewAtom("a");
mFrameTag = NS_NewAtom("frame");
mIFrameTag = NS_NewAtom("iframe");
mHrefAttr = NS_NewAtom("href");
mSrcAttr = NS_NewAtom("src");
mBaseHrefAttr = NS_NewAtom("_base_href");
mVisited = new AtomHashTable();
mVerbose = nsnull;
mRegressing = PR_FALSE;
}
static void FreeStrings(nsVoidArray& aArray)
{
PRInt32 i, n = aArray.Count();
for (i = 0; i < n; i++) {
nsString* s = (nsString*) aArray.ElementAt(i);
delete s;
}
aArray.Clear();
}
nsWebCrawler::~nsWebCrawler()
{
FreeStrings(mSafeDomains);
FreeStrings(mAvoidDomains);
NS_IF_RELEASE(mBrowser);
NS_IF_RELEASE(mTimer);
NS_IF_RELEASE(mLinkTag);
NS_IF_RELEASE(mFrameTag);
NS_IF_RELEASE(mIFrameTag);
NS_IF_RELEASE(mHrefAttr);
NS_IF_RELEASE(mSrcAttr);
NS_IF_RELEASE(mBaseHrefAttr);
delete mVisited;
}
NS_IMPL_ISUPPORTS(nsWebCrawler, kIDocumentLoaderObserverIID)
NS_IMETHODIMP
nsWebCrawler::OnStartDocumentLoad(nsIDocumentLoader* loader, nsIURI* aURL,
const char* aCommand)
{
return NS_OK;
}
NS_IMETHODIMP
#ifdef NECKO
nsWebCrawler::OnEndDocumentLoad(nsIDocumentLoader* loader,
nsIChannel* channel,
nsresult aStatus,
nsIDocumentLoaderObserver* aObserver)
#else
nsWebCrawler::OnEndDocumentLoad(nsIDocumentLoader* loader,
nsIURI* aURL,
PRInt32 aStatus,
nsIDocumentLoaderObserver * aObserver)
#endif
{
nsresult rv;
#ifdef NECKO
nsCOMPtr<nsIURI> aURL;
rv = channel->GetURI(getter_AddRefs(aURL));
if (NS_FAILED(rv)) return rv;
#endif
if (nsnull == aURL) {
return NS_OK;
}
if (mVerbose) {
#ifdef NECKO
char* spec;
#else
const char* spec;
#endif
aURL->GetSpec(&spec);
printf("Crawler: done loading %s\n", spec);
#ifdef NECKO
nsCRT::free(spec);
#endif
}
// Make sure the document bits make it to the screen at least once
nsIPresShell* shell = GetPresShell();
if (nsnull != shell) {
nsCOMPtr<nsIViewManager> vm;
shell->GetViewManager(getter_AddRefs(vm));
if (vm) {
nsIView* rootView;
vm->GetRootView(rootView);
vm->UpdateView(rootView, nsnull, NS_VMREFRESH_IMMEDIATE);
}
if (mOutputDir.Length() > 0) {
nsIFrame* root;
shell->GetRootFrame(&root);
if (nsnull != root) {
if (mOutputDir.Length() > 0)
{
nsAutoString regressionFileName;
FILE *fp = GetOutputFile(aURL, regressionFileName);
if (fp) {
root->DumpRegressionData(fp, 0);
fclose(fp);
if (mRegressing) {
PerformRegressionTest(regressionFileName);
}
else {
fputs(regressionFileName, stdout);
printf(" - being written\n");
}
}
else {
#ifdef NECKO
char* file;
(void)aURL->GetPath(&file);
#else
const char* file;
(void)aURL->GetFile(&file);
#endif
printf("could not open output file for %s\n", file);
#ifdef NECKO
nsCRT::free(file);
#endif
}
}
else
root->DumpRegressionData(stdout, 0);
}
}
if (mJiggleLayout) {
nsRect r;
mBrowser->GetContentBounds(r);
nscoord oldWidth = r.width;
while (r.width > 100) {
r.width -= 10;
mBrowser->SizeWindowTo(r.width, r.height);
}
while (r.width < oldWidth) {
r.width += 10;
mBrowser->SizeWindowTo(r.width, r.height);
}
}
if (mCrawl) {
FindMoreURLs();
}
if (0 == mDelay) {
LoadNextURL();
}
NS_RELEASE(shell);
}
else {
fputs("null pres shell\n", stdout);
}
return NS_OK;
}
NS_IMETHODIMP
#ifdef NECKO
nsWebCrawler::OnStartURLLoad(nsIDocumentLoader* loader,
nsIChannel* channel,
nsIContentViewer* aViewer)
#else
nsWebCrawler::OnStartURLLoad(nsIDocumentLoader* loader, nsIURI* aURL,
const char* aContentType,
nsIContentViewer* aViewer)
#endif
{
return NS_OK;
}
NS_IMETHODIMP
#ifdef NECKO
nsWebCrawler::OnProgressURLLoad(nsIDocumentLoader* loader,
nsIChannel* channel,
PRUint32 aProgress,
PRUint32 aProgressMax)
#else
nsWebCrawler::OnProgressURLLoad(nsIDocumentLoader* loader,
nsIURI* aURL, PRUint32 aProgress,
PRUint32 aProgressMax)
#endif
{
return NS_OK;
}
NS_IMETHODIMP
#ifdef NECKO
nsWebCrawler::OnStatusURLLoad(nsIDocumentLoader* loader,
nsIChannel* channel,
nsString& aMsg)
#else
nsWebCrawler::OnStatusURLLoad(nsIDocumentLoader* loader, nsIURI* aURL,
nsString& aMsg)
#endif
{
return NS_OK;
}
NS_IMETHODIMP
#ifdef NECKO
nsWebCrawler::OnEndURLLoad(nsIDocumentLoader* loader, nsIChannel* channel,
nsresult aStatus)
#else
nsWebCrawler::OnEndURLLoad(nsIDocumentLoader* loader, nsIURI* aURL,
PRInt32 aStatus)
#endif
{
return NS_OK;
}
NS_IMETHODIMP
#ifdef NECKO
nsWebCrawler::HandleUnknownContentType(nsIDocumentLoader* loader,
nsIChannel* channel,
const char *aContentType,
const char *aCommand)
#else
nsWebCrawler::HandleUnknownContentType(nsIDocumentLoader* loader,
nsIURI *aURL,
const char *aContentType,
const char *aCommand)
#endif
{
return NS_OK;
}
FILE*
nsWebCrawler::GetOutputFile(nsIURI *aURL, nsString& aOutputName)
{
static const char kDefaultOutputFileName[] = "test.txt"; // the default
FILE *result = nsnull;
if (nsnull!=aURL)
{
char *inputFileName;
#ifdef NECKO
char* file;
(void)aURL->GetPath(&file);
#else
const char* file;
(void)aURL->GetFile(&file);
#endif
nsAutoString inputFileFullPath(file);
#ifdef NECKO
nsCRT::free(file);
#endif
PRInt32 fileNameOffset = inputFileFullPath.RFindChar('/');
if (-1==fileNameOffset)
{
inputFileName = new char[strlen(kDefaultOutputFileName) + 1];
strcpy (inputFileName, kDefaultOutputFileName);
}
else
{
PRInt32 len = inputFileFullPath.Length() - fileNameOffset;
inputFileName = new char[len + 1 + 20];
char *c = inputFileName;
for (PRInt32 i=fileNameOffset+1; i<fileNameOffset+len; i++)
{
char ch = (char) inputFileFullPath.CharAt(i);
if (ch == '.') {
// Stop on dot so that we don't keep the old extension
break;
}
*c++ = ch;
}
// Tack on ".rgd" extension for "regression data"
*c++ = '.';
*c++ = 'r';
*c++ = 'g';
*c++ = 'd';
*c++ = '\0';
aOutputName.Truncate();
aOutputName.Append(inputFileName);
}
nsAutoString outputFileName(mOutputDir);
outputFileName += inputFileName;
PRInt32 bufLen = outputFileName.Length()+1;
char *buf = new char[bufLen+1];
outputFileName.ToCString(buf, bufLen);
result = fopen(buf, "wt");
delete [] buf;
delete [] inputFileName;
}
return result;
}
void
nsWebCrawler::AddURL(const nsString& aURL)
{
nsString* s = new nsString(aURL);
mPendingURLs.AppendElement(s);
if (mVerbose) {
printf("WebCrawler: adding '");
fputs(aURL, stdout);
printf("'\n");
}
}
void
nsWebCrawler::AddSafeDomain(const nsString& aDomain)
{
nsString* s = new nsString(aDomain);
mSafeDomains.AppendElement(s);
}
void
nsWebCrawler::AddAvoidDomain(const nsString& aDomain)
{
nsString* s = new nsString(aDomain);
mAvoidDomains.AppendElement(s);
}
void
nsWebCrawler::SetOutputDir(const nsString& aOutputDir)
{
mOutputDir = aOutputDir;
}
void
nsWebCrawler::SetRegressionDir(const nsString& aDir)
{
mRegressionDir = aDir;
}
void
nsWebCrawler::Start()
{
// Enable observing each URL load...
nsIWebShell* shell = nsnull;
mBrowser->GetWebShell(shell);
shell->SetDocLoaderObserver(this);
NS_RELEASE(shell);
LoadNextURL();
}
void
nsWebCrawler::EnableCrawler()
{
mCrawl = PR_TRUE;
}
static const unsigned char kLowerLookup[256] = {
0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,
16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,
32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,
48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,
64,
97,98,99,100,101,102,103,104,105,106,107,108,109,
110,111,112,113,114,115,116,117,118,119,120,121,122,
91, 92, 93, 94, 95, 96, 97, 98, 99,100,101,102,103,104,105,106,107,108,109,110,111,
112,113,114,115,116,117,118,119,120,121,122,123,124,125,126,127,
128,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143,
144,145,146,147,148,149,150,151,152,153,154,155,156,157,158,159,
160,161,162,163,164,165,166,167,168,169,170,171,172,173,174,175,
176,177,178,179,180,181,182,183,184,185,186,187,188,189,190,191,
192,193,194,195,196,197,198,199,200,201,202,203,204,205,206,207,
208,209,210,211,212,213,214,215,216,217,218,219,220,221,222,223,
224,225,226,227,228,229,230,231,232,233,234,235,236,237,238,239,
240,241,242,243,244,245,246,247,248,249,250,251,252,253,254,255
};
static PRBool
EndsWith(const nsString& aDomain, const char* aHost, PRInt32 aHostLen)
{
PRInt32 slen = aDomain.Length();
if (slen < aHostLen) {
return PR_FALSE;
}
const PRUnichar* uc = aDomain.GetUnicode();
uc += slen - aHostLen;
const PRUnichar* end = uc + aHostLen;
while (uc < end) {
unsigned char uch = (unsigned char) ((*uc++) & 0xff);
unsigned char ch = (unsigned char) ((*aHost++) & 0xff);
if (kLowerLookup[uch] != kLowerLookup[ch]) {
return PR_FALSE;
}
}
return PR_TRUE;
}
static PRBool
StartsWith(const nsString& s1, const char* s2)
{
PRInt32 s1len = s1.Length();
PRInt32 s2len = strlen(s2);
if (s1len < s2len) {
return PR_FALSE;
}
const PRUnichar* uc = s1.GetUnicode();
const PRUnichar* end = uc + s2len;
while (uc < end) {
unsigned char uch = (unsigned char) ((*uc++) & 0xff);
unsigned char ch = (unsigned char) ((*s2++) & 0xff);
if (kLowerLookup[uch] != kLowerLookup[ch]) {
return PR_FALSE;
}
}
return PR_TRUE;
}
PRBool
nsWebCrawler::OkToLoad(const nsString& aURLSpec)
{
if (!StartsWith(aURLSpec, "http:") && !StartsWith(aURLSpec, "ftp:") &&
!StartsWith(aURLSpec, "file:") &&
!StartsWith(aURLSpec, "resource:")) {
return PR_FALSE;
}
PRBool ok = PR_TRUE;
nsIURI* url;
nsresult rv;
#ifndef NECKO
rv = NS_NewURL(&url, aURLSpec);
#else
rv = NS_NewURI(&url, aURLSpec);
#endif // NECKO
if (NS_OK == rv) {
#ifdef NECKO
char* host;
#else
const char* host;
#endif
rv = url->GetHost(&host);
if (rv == NS_OK) {
PRInt32 hostlen = PL_strlen(host);
// Check domains to avoid
PRInt32 i, n = mAvoidDomains.Count();
for (i = 0; i < n; i++) {
nsString* s = (nsString*) mAvoidDomains.ElementAt(i);
if (s && EndsWith(*s, host, hostlen)) {
printf("Avoiding '");
fputs(aURLSpec, stdout);
printf("'\n");
return PR_FALSE;
}
}
// Check domains to stay within
n = mSafeDomains.Count();
if (n == 0) {
// If we don't care then all the domains that we aren't
// avoiding are OK
return PR_TRUE;
}
for (i = 0; i < n; i++) {
nsString* s = (nsString*) mSafeDomains.ElementAt(i);
if (s && EndsWith(*s, host, hostlen)) {
return PR_TRUE;
}
}
ok = PR_FALSE;
#ifdef NECKO
nsCRT::free(host);
#endif
}
NS_RELEASE(url);
}
return ok;
}
void
nsWebCrawler::RecordLoadedURL(const nsString& aURL)
{
if (nsnull != mRecord) {
fputs(aURL, mRecord);
fputs("\n", mRecord);
fflush(mRecord);
}
}
void
nsWebCrawler::FindURLsIn(nsIDocument* aDocument, nsIContent* aNode)
{
nsIAtom* atom;
aNode->GetTag(atom);
if ((atom == mLinkTag) || (atom == mFrameTag) || (atom == mIFrameTag)) {
// Get absolute url that tag targets
nsAutoString base, src, absURLSpec;
if (atom == mLinkTag) {
aNode->GetAttribute(kNameSpaceID_HTML, mHrefAttr, src);
}
else {
aNode->GetAttribute(kNameSpaceID_HTML, mSrcAttr, src);
}
nsIURI* docURL = aDocument->GetDocumentURL();
nsresult rv;
#ifndef NECKO
aNode->GetAttribute(kNameSpaceID_HTML, mBaseHrefAttr, base);/* XXX not public knowledge! */
rv = NS_MakeAbsoluteURL(docURL, base, src, absURLSpec);
#else
rv = NS_MakeAbsoluteURI(src, docURL, absURLSpec);
#endif // NECKO
if (NS_OK == rv) {
nsIAtom* urlAtom = NS_NewAtom(absURLSpec);
if (0 == mVisited->Get(urlAtom)) {
// Remember the URL as visited so that we don't go there again
mVisited->Put(urlAtom, "visited");
if (OkToLoad(absURLSpec)) {
mPendingURLs.AppendElement(new nsString(absURLSpec));
if (mVerbose) {
printf("Adding '");
fputs(absURLSpec, stdout);
printf("'\n");
}
}
else {
if (mVerbose) {
printf("Skipping '");
fputs(absURLSpec, stdout);
printf("'\n");
}
}
}
else {
if (mVerbose) {
printf("Already visited '");
fputs(absURLSpec, stdout);
printf("'\n");
}
}
NS_RELEASE(urlAtom);
}
NS_RELEASE(docURL);
}
NS_IF_RELEASE(atom);
PRBool canHaveKids;
aNode->CanContainChildren(canHaveKids);
if (canHaveKids) {
PRInt32 i, n;
aNode->ChildCount(n);
for (i = 0; i < n; i++) {
nsIContent* kid;
aNode->ChildAt(i, kid);
if (nsnull != kid) {
FindURLsIn(aDocument, kid);
NS_RELEASE(kid);
}
}
}
}
void
nsWebCrawler::FindMoreURLs()
{
nsIWebShell* shell = nsnull;
mBrowser->GetWebShell(shell);
if (nsnull != shell) {
nsIContentViewer* cv = nsnull;
shell->GetContentViewer(&cv);
if (nsnull != cv) {
nsIDocumentViewer* docv = nsnull;
cv->QueryInterface(kIDocumentViewerIID, (void**) &docv);
if (nsnull != docv) {
nsIDocument* doc = nsnull;
docv->GetDocument(doc);
if (nsnull != doc) {
nsIContent* root;
root = doc->GetRootContent();
if (nsnull != root) {
FindURLsIn(doc, root);
NS_RELEASE(root);
}
NS_RELEASE(doc);
}
NS_RELEASE(docv);
}
NS_RELEASE(cv);
}
NS_RELEASE(shell);
}
}
void
nsWebCrawler::SetBrowserWindow(nsIBrowserWindow* aWindow)
{
NS_IF_RELEASE(mBrowser);
mBrowser = aWindow;
NS_IF_ADDREF(mBrowser);
}
void
nsWebCrawler::GetBrowserWindow(nsIBrowserWindow** aWindow)
{
NS_IF_ADDREF(mBrowser);
*aWindow = mBrowser;
}
static void
TimerCallBack(nsITimer *aTimer, void *aClosure)
{
nsWebCrawler* wc = (nsWebCrawler*) aClosure;
wc->LoadNextURL();
}
void
nsWebCrawler::LoadNextURL()
{
if (0 != mDelay) {
NS_IF_RELEASE(mTimer);
NS_NewTimer(&mTimer);
mTimer->Init(TimerCallBack, (void *)this, mDelay * 1000);
}
if ((mMaxPages < 0) || (mMaxPages > 0)) {
while (0 != mPendingURLs.Count()) {
nsString* url = (nsString*) mPendingURLs.ElementAt(0);
mPendingURLs.RemoveElementAt(0);
if (nsnull != url) {
if (OkToLoad(*url)) {
RecordLoadedURL(*url);
nsIWebShell* webShell;
mBrowser->GetWebShell(webShell);
mCurrentURL = *url;
webShell->LoadURL(url->GetUnicode());
NS_RELEASE(webShell);
if (mMaxPages > 0) {
--mMaxPages;
}
delete url;
return;
}
delete url;
}
}
}
if (nsnull != mRecord) {
fclose(mRecord);
mRecord = nsnull;
}
if (mPostExit) {
mViewer->Exit();
}
}
nsIPresShell*
nsWebCrawler::GetPresShell()
{
nsIWebShell* webShell;
mBrowser->GetWebShell(webShell);
nsIPresShell* shell = nsnull;
if (nsnull != webShell) {
nsIContentViewer* cv = nsnull;
webShell->GetContentViewer(&cv);
if (nsnull != cv) {
nsIDocumentViewer* docv = nsnull;
cv->QueryInterface(kIDocumentViewerIID, (void**) &docv);
if (nsnull != docv) {
nsIPresContext* cx;
docv->GetPresContext(cx);
if (nsnull != cx) {
cx->GetShell(&shell);
NS_RELEASE(cx);
}
NS_RELEASE(docv);
}
NS_RELEASE(cv);
}
NS_RELEASE(webShell);
}
return shell;
}
static FILE*
OpenRegressionFile(const nsString& aBaseName, const nsString& aOutputName)
{
nsAutoString a;
a.Append(aBaseName);
a.Append("/");
a.Append(aOutputName);
char* fn = a.ToNewCString();
FILE* fp = fopen(fn, "r");
if (!fp) {
printf("Unable to open regression data file %s\n", fn);
}
delete[] fn;
return fp;
}
#define BUF_SIZE 1024
// Load up both data files (original and the one we just output) into
// two independent xml content trees. Then compare them.
void
nsWebCrawler::PerformRegressionTest(const nsString& aOutputName)
{
// First load the trees
nsIFrameUtil* fu;
nsresult rv = nsComponentManager::CreateInstance(kFrameUtilCID, nsnull,
kIFrameUtilIID, (void **)&fu);
if (NS_FAILED(rv)) {
printf("Can't find nsIFrameUtil implementation\n");
return;
}
FILE* f1 = OpenRegressionFile(mRegressionDir, aOutputName);
if (!f1) {
NS_RELEASE(fu);
return;
}
FILE* f2 = OpenRegressionFile(mOutputDir, aOutputName);
if (!f2) {
fclose(f1);
NS_RELEASE(fu);
return;
}
rv = fu->CompareRegressionData(f1, f2);
NS_RELEASE(fu);
char dirName[BUF_SIZE];
char fileName[BUF_SIZE];
mOutputDir.ToCString(dirName, BUF_SIZE-1);
aOutputName.ToCString(fileName, BUF_SIZE-1);
printf("regression test %s%s %s\n", dirName, fileName, NS_SUCCEEDED(rv) ? "passed" : "failed");
}
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