android browser 的几个小feature (四) kitkat上实现UaProfile的设置
16lz
2021-12-04
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本文为极度寒冰原创，转载请注明出处 #############################################在Browser的app里面，为了方便测试，就先简单写了一个例子。
--- a/src/com/android/browser/BrowserSettings.java+++ b/src/com/android/browser/BrowserSettings.java@@ -272,6 +272,8 @@ public class BrowserSettings implements OnSharedPreferenceChangeListener, } else { settings.setUserAgentString(USER_AGENTS[getUserAgent()]); }+ String uaprofile = "www.baidu.com";+ settings.setUserProfileString(uaprofile); }UaProfile一般为一个xml的网页，存放在运营商的服务器上。我们这边先以www.baidu.com来代替 然后修改的就是framework的部分了，framework/base中的webkit中，我们写了两个方法分别是get和set Profile
diff --git a/core/java/android/webkit/WebSettings.java b/core/java/android/webkit/WebSettings.javaindex 98ef66e..4e273f9 100644--- a/core/java/android/webkit/WebSettings.java+++ b/core/java/android/webkit/WebSettings.java@@ -599,6 +599,9 @@ public abstract class WebSettings { throw new MustOverrideException(); }+ /** {@hide} */+ public synchronized void setUserProfile(int ua) {+ } /** * Gets the user-agent as an integer code. * <ul>@@ -1332,6 +1335,16 @@ public abstract class WebSettings { throw new MustOverrideException(); }+ /** {@hide} */+ public synchronized void setUserProfileString(String ua){+ throw new MustOverrideException();+ }++ /** {@hide} */+ public synchronized String getUserProfileString()+ {+ throw new MustOverrideException();+ } /** * Gets the WebView's user-agent string. *在framework的webview中，我们也需要重新对websettings里面的方法进行重写。 --- a/chromium/java/com/android/webview/chromium/ContentSettingsAdapter.java+++ b/chromium/java/com/android/webview/chromium/ContentSettingsAdapter.java@@ -200,6 +200,16 @@ public class ContentSettingsAdapter extends android.webkit.WebSettings { } @Override+ public synchronized void setUserProfile(int ua)+ {+ if (ua == 0) {+ setUserProfileString(null);+ } else {+ Log.d("chao","setUserProfile not supported, ua=" + ua);+ }+ }++ @Override public synchronized int getUserAgent() { // Minimal implementation for backwards compatibility: just identifies default vs custom. return AwSettings.getDefaultUserAgent().equals(getUserAgentString()) ? 0 : -1;@@ -511,6 +521,16 @@ public class ContentSettingsAdapter extends android.webkit.WebSettings { } @Override+ public synchronized void setUserProfileString(String ua) {+ mAwSettings.setUserProfileString(ua);+ }++ @Override+ public synchronized String getUserProfileString() {+ return mAwSettings.getUserProfileString();+ }++ @Override public synchronized String getUserAgentString() { return mAwSettings.getUserAgentString(); }接下来修改的是extern/chromium_org中的部分了。 先是android_webview中的java部分，这部分可以和framework中进行互相调用。
--- a/android_webview/java/src/org/chromium/android_webview/AwSettings.java+++ b/android_webview/java/src/org/chromium/android_webview/AwSettings.java@@ -14,7 +14,7 @@ import android.provider.Settings; import android.webkit.WebSettings.PluginState; import android.webkit.WebSettings; import android.webkit.WebView;-+import android.util.Log; import org.chromium.base.CalledByNative; import org.chromium.base.JNINamespace; import org.chromium.base.ThreadUtils;@@ -64,6 +64,7 @@ public class AwSettings { // TODO(mnaganov): Should be obtained from Android. Problem: it is hidden. private String mDefaultTextEncoding = "Latin-1"; private String mUserAgent;+ private String mUserProfile; private int mMinimumFontSize = 8; private int mMinimumLogicalFontSize = 8; private int mDefaultFontSize = 16;@@ -373,7 +374,6 @@ public class AwSettings { private float getInitialPageScalePercentLocked() { return mInitialPageScalePercent; }- /** * See {@link android.webkit.WebSettings#setNeedInitialFocus}. */@@ -469,6 +469,36 @@ public class AwSettings { } /**+ * Add by chao+ */+ public void setUserProfileString(String ua)+ {+ synchronized (mAwSettingsLock) {+ mUserProfile = ua;+ Log.e("chao","setUserProfileString ua = " + ua);+ mEventHandler.maybeRunOnUiThreadBlocking(new Runnable() {+ @Override+ public void run() {+ if (mNativeAwSettings != 0) {+ nativeUpdateUserProfileLocked(mNativeAwSettings);+ }+ }+ });+ }+ }++ public String getUserProfileString() {+ synchronized (mAwSettingsLock) {+ return mUserProfile;+ }+ }++ @CalledByNative+ private String getUserProfileLocked() {+ return mUserProfile;+ }++ /** * See {@link android.webkit.WebSettings#getUserAgentString}. */ public String getUserAgentString() {@@ -1410,6 +1440,7 @@ public class AwSettings { private native void nativeUpdateInitialPageScaleLocked(int nativeAwSettings);+ private native void nativeUpdateUserProfileLocked(int nativeAwSettings); private native void nativeUpdateUserAgentLocked(int nativeAwSettings); private native void nativeUpdateWebkitPreferencesLocked(int nativeAwSettings);在java端的部分处理完之后，可以对native的部分进行修改了。 于AwSettings.java相对应的部分是aw_settings.cc了。
diff --git a/android_webview/native/aw_settings.cc b/android_webview/native/aw_settings.ccindex e4aa588..a8863e2 100644--- a/android_webview/native/aw_settings.cc+++ b/android_webview/native/aw_settings.cc@@ -100,10 +100,29 @@ void AwSettings::UpdateEverythingLocked(JNIEnv* env, jobject obj) { UpdateInitialPageScaleLocked(env, obj); UpdateWebkitPreferencesLocked(env, obj); UpdateUserAgentLocked(env, obj);+ UpdateUserProfileLocked(env, obj); ResetScrollAndScaleState(env, obj); UpdateFormDataPreferencesLocked(env, obj); }+void AwSettings::UpdateUserProfileLocked(JNIEnv* env, jobject obj) {+ if (!web_contents()) return;+ ScopedJavaLocalRef<jstring> str =+ Java_AwSettings_getUserProfileLocked(env, obj);+ bool uaprofile_overidden = str.obj() != NULL;+ LOG(ERROR) << "chao uaprofile_overidden = " << uaprofile_overidden;+ if (uaprofile_overidden) {+ std::string override = base::android::ConvertJavaStringToUTF8(str);+ LOG(ERROR) << "chao override = " << override;+ web_contents()->SetUserProfileOverride(override);+ }+} void AwSettings::UpdateUserAgentLocked(JNIEnv* env, jobject obj) { if (!web_contents()) return;因为是c文件，所以要给我们新添加的文件进行声明。 diff --git a/android_webview/native/aw_settings.h b/android_webview/native/aw_settings.hindex d1f81c3..e52adec 100644--- a/android_webview/native/aw_settings.h+++ b/android_webview/native/aw_settings.h@@ -32,6 +32,7 @@ class AwSettings : public content::WebContentsObserver { void UpdateEverythingLocked(JNIEnv* env, jobject obj); void UpdateInitialPageScaleLocked(JNIEnv* env, jobject obj); void UpdateUserAgentLocked(JNIEnv* env, jobject obj);+ void UpdateUserProfileLocked(JNIEnv* env, jobject obj); void UpdateWebkitPreferencesLocked(JNIEnv* env, jobject obj); void UpdateFormDataPreferencesLocked(JNIEnv* env, jobject obj);因为我们的方法是用web_contents()->SetUserProfileOverride(override)去进行相应的实现，所以我们还需要修改相应的文件。 diff --git a/content/browser/web_contents/web_contents_impl.cc b/content/browser/web_contents/web_contents_impl.ccindex 8f09208..21070ec 100644--- a/content/browser/web_contents/web_contents_impl.cc+++ b/content/browser/web_contents/web_contents_impl.cc@@ -863,6 +863,29 @@ WebUI* WebContentsImpl::GetCommittedWebUI() const { return render_manager_.web_ui(); }+void WebContentsImpl::SetUserProfileOverride(const std::string& override) {+ LOG(ERROR) << "chao override = " << override;+ WebPreferences prefs;+ prefs.user_profile_override = override;+ GURL url = controller_.GetActiveEntry()+ ? controller_.GetActiveEntry()->GetURL() : GURL::EmptyGURL();+ GetContentClient()->browser()->OverrideWebkitPrefs(host, url, &prefs);+}void WebContentsImpl::SetUserAgentOverride(const std::string& override) { if (GetUserAgentOverride() == override) return;同样的，声明是必不可少的。 diff --git a/content/browser/web_contents/web_contents_impl.h b/content/browser/web_contents/web_contents_impl.hindex a5eaf7d..f833e8c 100644--- a/content/browser/web_contents/web_contents_impl.h+++ b/content/browser/web_contents/web_contents_impl.h@@ -229,6 +229,8 @@ class CONTENT_EXPORT WebContentsImpl virtual WebUI* GetCommittedWebUI() const OVERRIDE; virtual void SetUserAgentOverride(const std::string& override) OVERRIDE; virtual const std::string& GetUserAgentOverride() const OVERRIDE;+ virtual void SetUserProfileOverride(const std::string& override) OVERRIDE; #if defined(OS_WIN) && defined(USE_AURA) virtual void SetParentNativeViewAccessible( gfx::NativeViewAccessible accessible_parent) OVERRIDE;因为是继承的关系，所以还要在其父类中进行声明。
diff --git a/content/public/browser/web_contents.h b/content/public/browser/web_contents.hindex 86b51a2..b09a8c8 100644--- a/content/public/browser/web_contents.h+++ b/content/public/browser/web_contents.h@@ -210,6 +210,8 @@ class WebContents : public PageNavigator, // Allows overriding the user agent used for NavigationEntries it owns. virtual void SetUserAgentOverride(const std::string& override) = 0;+ virtual void SetUserProfileOverride(const std::string& override) = 0; virtual const std::string& GetUserAgentOverride() const = 0; #if defined(OS_WIN) && defined(USE_AURA)我们是利用webPrefrence作为中介，所以我们在webpreferences中要对相应的内容进行声明。这里，由于只有这一个对象，所以我们必须使用static变量来进行声明。
diff --git a/webkit/common/webpreferences.cc b/webkit/common/webpreferences.ccindex 02a87df..409a549 100644--- a/webkit/common/webpreferences.cc+++ b/webkit/common/webpreferences.cc@@ -12,6 +12,7 @@ using WebKit::WebSettings;+std::string WebPreferences::user_profile_override = ""; WebPreferences::WebPreferences() : default_font_size(16), default_fixed_font_size(13),@@ -154,6 +155,7 @@ WebPreferences::WebPreferences() ASCIIToUTF16("Times New Roman"); }+ WebPreferences::~WebPreferences() { }diff --git a/webkit/common/webpreferences.h b/webkit/common/webpreferences.hindex d94ec9c..e2d44cb 100644--- a/webkit/common/webpreferences.h+++ b/webkit/common/webpreferences.h@@ -18,7 +18,6 @@ #include "base/strings/string16.h" #include "url/gurl.h" #include "webkit/common/webkit_common_export.h"- namespace WebKit { class WebView; }@@ -79,6 +78,7 @@ struct WEBKIT_COMMON_EXPORT WebPreferences { bool remote_fonts_enabled; bool javascript_can_access_clipboard; bool xss_auditor_enabled;+ static std::string user_profile_override; // We don't use dns_prefetching_enabled to disable DNS prefetching. Instead, // we disable the feature at a lower layer so that we catch non-WebKit uses // of DNS prefetch as well.在thirdparty的webkit中，我们要开始使用这个一直传递过来的值进行赋值。 diff --git a/Source/core/loader/FrameLoader.cpp b/Source/core/loader/FrameLoader.cppindex f068e20..c7399dc 100644--- a/Source/core/loader/FrameLoader.cpp+++ b/Source/core/loader/FrameLoader.cpp@@ -34,7 +34,6 @@ #include "config.h" #include "core/loader/FrameLoader.h"- #include "HTMLNames.h" #include "bindings/v8/DOMWrapperWorld.h" #include "bindings/v8/ScriptController.h"@@ -90,7 +89,10 @@ #include "wtf/TemporaryChange.h" #include "wtf/text/CString.h" #include "wtf/text/WTFString.h"-+#include <iostream>+#include "../../../../../webkit/common/webpreferences.h"+#include "public/platform/WebString.h"+#include <string> namespace WebCore { using namespace HTMLNames;@@ -1316,6 +1318,17 @@ int FrameLoader::numPendingOrLoadingRequests(bool recurse) const return count; }+String FrameLoader::userProfile(const KURL& url) const+{+ WebPreferences prefs;++ std::string userProfile = prefs.user_profile_override;+ String tmp_Profile = WebKit::WebString::fromUTF8(userProfile);+ LOG_ERROR("chao userProfile");+ LOG_ERROR("chao userProfile = %s", userProfile);+ return tmp_Profile;+}+ String FrameLoader::userAgent(const KURL& url) const { String userAgent = m_client->userAgent(url);@@ -1378,7 +1394,8 @@ void FrameLoader::addExtraFieldsToRequest(ResourceRequest& request) return; applyUserAgent(request);-+ LOG_ERROR("chao applyUserProfile begin");+ applyUserProfile(request); if (request.cachePolicy() == ReloadIgnoringCacheData) { if (m_loadType == FrameLoadTypeReload) request.setHTTPHeaderField("Cache-Control", "max-age=0");@@ -1395,6 +1412,21 @@ void FrameLoader::addExtraFieldsToRequest(ResourceRequest& request) addHTTPOriginIfNeeded(request, String()); }++void FrameLoader::applyUserProfile(ResourceRequest& request)+{+ String userProfile = this->userProfile(request.url());+ LOG_ERROR("chao FrameLoader::applyUserProfile userProfile = %s",userProfile);+ request.setHTTPUaProfile(userProfile);+}++ void FrameLoader::addHTTPOriginIfNeeded(ResourceRequest& request, const String& origin) { if (!request.httpOrigin().isEmpty())相关新增函数的声明： diff --git a/Source/core/loader/FrameLoader.h b/Source/core/loader/FrameLoader.hindex c9ff319..c40f568 100644--- a/Source/core/loader/FrameLoader.h+++ b/Source/core/loader/FrameLoader.h@@ -182,7 +182,7 @@ public: void receivedFirstData(); String userAgent(const KURL&) const;-+ String userProfile(const KURL&) const; void dispatchDidClearWindowObjectInWorld(DOMWrapperWorld*); void dispatchDidClearWindowObjectsInAllWorlds(); void dispatchDocumentElementAvailable();@@ -218,6 +218,8 @@ public: Frame* findFrameForNavigation(const AtomicString& name, Document* activeDocument = 0); void applyUserAgent(ResourceRequest&);+ void applyUserProfile(ResourceRequest& request); bool shouldInterruptLoadForXFrameOptions(const String&, const KURL&, unsigned long requestIdentifier);然后就是这个函数的实现：
diff --git a/Source/core/platform/network/ResourceRequest.h b/Source/core/platform/network/ResourceRequest.hindex d54305a..7062960 100644--- a/Source/core/platform/network/ResourceRequest.h+++ b/Source/core/platform/network/ResourceRequest.h@@ -145,7 +145,7 @@ namespace WebCore { String httpUserAgent() const { return httpHeaderField("User-Agent"); } void setHTTPUserAgent(const String& httpUserAgent) { setHTTPHeaderField("User-Agent", httpUserAgent); } void clearHTTPUserAgent();-+ void setHTTPUaProfile(const String& httpUAProfile) { setHTTPHeaderField("x-wap-profile", httpUAProfile); } String httpAccept() const { return httpHeaderField("Accept"); } void setHTTPAccept(const String& httpAccept) { setHTTPHeaderField("Accept", httpAccept); } void clearHTTPAccept();
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