| /* |
| ** |
| ** Copyright 2007, The Android Open Source Project |
| ** |
| ** Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0 |
| ** |
| ** Unless required by applicable law or agreed to in writing, software |
| ** distributed under the License is distributed on an "AS IS" BASIS, |
| ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| ** See the License for the specific language governing permissions and |
| ** limitations under the License. |
| */ |
| package android.widget; |
| |
| import com.android.internal.R; |
| |
| import android.content.Context; |
| import android.content.pm.PackageInfo; |
| import android.content.pm.PackageManager; |
| import android.content.pm.PackageManager.NameNotFoundException; |
| import android.content.pm.PackageParser; |
| import android.content.pm.PermissionGroupInfo; |
| import android.content.pm.PermissionInfo; |
| import android.graphics.drawable.Drawable; |
| import android.util.Log; |
| import android.view.LayoutInflater; |
| import android.view.View; |
| |
| import java.text.Collator; |
| import java.util.ArrayList; |
| import java.util.Collections; |
| import java.util.Comparator; |
| import java.util.HashMap; |
| import java.util.HashSet; |
| import java.util.Iterator; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Set; |
| |
| /** |
| * This class contains the SecurityPermissions view implementation. |
| * Initially the package's advanced or dangerous security permissions |
| * are displayed under categorized |
| * groups. Clicking on the additional permissions presents |
| * extended information consisting of all groups and permissions. |
| * To use this view define a LinearLayout or any ViewGroup and add this |
| * view by instantiating AppSecurityPermissions and invoking getPermissionsView. |
| * |
| * {@hide} |
| */ |
| public class AppSecurityPermissions implements View.OnClickListener { |
| |
| private enum State { |
| NO_PERMS, |
| DANGEROUS_ONLY, |
| NORMAL_ONLY, |
| BOTH |
| } |
| |
| private final static String TAG = "AppSecurityPermissions"; |
| private boolean localLOGV = false; |
| private Context mContext; |
| private LayoutInflater mInflater; |
| private PackageManager mPm; |
| private LinearLayout mPermsView; |
| private Map<String, String> mDangerousMap; |
| private Map<String, String> mNormalMap; |
| private List<PermissionInfo> mPermsList; |
| private String mDefaultGrpLabel; |
| private String mDefaultGrpName="DefaultGrp"; |
| private String mPermFormat; |
| private Drawable mNormalIcon; |
| private Drawable mDangerousIcon; |
| private boolean mExpanded; |
| private Drawable mShowMaxIcon; |
| private Drawable mShowMinIcon; |
| private View mShowMore; |
| private TextView mShowMoreText; |
| private ImageView mShowMoreIcon; |
| private State mCurrentState; |
| private LinearLayout mNonDangerousList; |
| private LinearLayout mDangerousList; |
| private HashMap<String, CharSequence> mGroupLabelCache; |
| private View mNoPermsView; |
| |
| public AppSecurityPermissions(Context context, List<PermissionInfo> permList) { |
| mContext = context; |
| mPm = mContext.getPackageManager(); |
| mPermsList = permList; |
| } |
| |
| public AppSecurityPermissions(Context context, String packageName) { |
| mContext = context; |
| mPm = mContext.getPackageManager(); |
| mPermsList = new ArrayList<PermissionInfo>(); |
| Set<PermissionInfo> permSet = new HashSet<PermissionInfo>(); |
| PackageInfo pkgInfo; |
| try { |
| pkgInfo = mPm.getPackageInfo(packageName, PackageManager.GET_PERMISSIONS); |
| } catch (NameNotFoundException e) { |
| Log.w(TAG, "Could'nt retrieve permissions for package:"+packageName); |
| return; |
| } |
| // Extract all user permissions |
| if((pkgInfo.applicationInfo != null) && (pkgInfo.applicationInfo.uid != -1)) { |
| getAllUsedPermissions(pkgInfo.applicationInfo.uid, permSet); |
| } |
| for(PermissionInfo tmpInfo : permSet) { |
| mPermsList.add(tmpInfo); |
| } |
| } |
| |
| public AppSecurityPermissions(Context context, PackageParser.Package pkg) { |
| mContext = context; |
| mPm = mContext.getPackageManager(); |
| mPermsList = new ArrayList<PermissionInfo>(); |
| Set<PermissionInfo> permSet = new HashSet<PermissionInfo>(); |
| if(pkg == null) { |
| return; |
| } |
| // Get requested permissions |
| if (pkg.requestedPermissions != null) { |
| ArrayList<String> strList = pkg.requestedPermissions; |
| int size = strList.size(); |
| if (size > 0) { |
| extractPerms(strList.toArray(new String[size]), permSet); |
| } |
| } |
| // Get permissions related to shared user if any |
| if(pkg.mSharedUserId != null) { |
| int sharedUid; |
| try { |
| sharedUid = mPm.getUidForSharedUser(pkg.mSharedUserId); |
| getAllUsedPermissions(sharedUid, permSet); |
| } catch (NameNotFoundException e) { |
| Log.w(TAG, "Could'nt retrieve shared user id for:"+pkg.packageName); |
| } |
| } |
| // Retrieve list of permissions |
| for(PermissionInfo tmpInfo : permSet) { |
| mPermsList.add(tmpInfo); |
| } |
| } |
| |
| /** |
| * Utility to retrieve a view displaying a single permission. |
| */ |
| public static View getPermissionItemView(Context context, |
| CharSequence grpName, CharSequence description, boolean dangerous) { |
| LayoutInflater inflater = (LayoutInflater)context.getSystemService( |
| Context.LAYOUT_INFLATER_SERVICE); |
| Drawable icon = context.getResources().getDrawable(dangerous |
| ? R.drawable.ic_bullet_key_permission : R.drawable.ic_text_dot); |
| return getPermissionItemView(context, inflater, grpName, |
| description, dangerous, icon); |
| } |
| |
| private void getAllUsedPermissions(int sharedUid, Set<PermissionInfo> permSet) { |
| String sharedPkgList[] = mPm.getPackagesForUid(sharedUid); |
| if(sharedPkgList == null || (sharedPkgList.length == 0)) { |
| return; |
| } |
| for(String sharedPkg : sharedPkgList) { |
| getPermissionsForPackage(sharedPkg, permSet); |
| } |
| } |
| |
| private void getPermissionsForPackage(String packageName, |
| Set<PermissionInfo> permSet) { |
| PackageInfo pkgInfo; |
| try { |
| pkgInfo = mPm.getPackageInfo(packageName, PackageManager.GET_PERMISSIONS); |
| } catch (NameNotFoundException e) { |
| Log.w(TAG, "Could'nt retrieve permissions for package:"+packageName); |
| return; |
| } |
| if ((pkgInfo != null) && (pkgInfo.requestedPermissions != null)) { |
| extractPerms(pkgInfo.requestedPermissions, permSet); |
| } |
| } |
| |
| private void extractPerms(String strList[], Set<PermissionInfo> permSet) { |
| if((strList == null) || (strList.length == 0)) { |
| return; |
| } |
| for(String permName:strList) { |
| try { |
| PermissionInfo tmpPermInfo = mPm.getPermissionInfo(permName, 0); |
| if(tmpPermInfo != null) { |
| permSet.add(tmpPermInfo); |
| } |
| } catch (NameNotFoundException e) { |
| Log.i(TAG, "Ignoring unknown permission:"+permName); |
| } |
| } |
| } |
| |
| public int getPermissionCount() { |
| return mPermsList.size(); |
| } |
| |
| public View getPermissionsView() { |
| |
| mInflater = (LayoutInflater) mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE); |
| mPermsView = (LinearLayout) mInflater.inflate(R.layout.app_perms_summary, null); |
| mShowMore = mPermsView.findViewById(R.id.show_more); |
| mShowMoreIcon = (ImageView) mShowMore.findViewById(R.id.show_more_icon); |
| mShowMoreText = (TextView) mShowMore.findViewById(R.id.show_more_text); |
| mDangerousList = (LinearLayout) mPermsView.findViewById(R.id.dangerous_perms_list); |
| mNonDangerousList = (LinearLayout) mPermsView.findViewById(R.id.non_dangerous_perms_list); |
| mNoPermsView = mPermsView.findViewById(R.id.no_permissions); |
| |
| // Set up the LinearLayout that acts like a list item. |
| mShowMore.setClickable(true); |
| mShowMore.setOnClickListener(this); |
| mShowMore.setFocusable(true); |
| mShowMore.setBackgroundResource(android.R.drawable.list_selector_background); |
| |
| // Pick up from framework resources instead. |
| mDefaultGrpLabel = mContext.getString(R.string.default_permission_group); |
| mPermFormat = mContext.getString(R.string.permissions_format); |
| mNormalIcon = mContext.getResources().getDrawable(R.drawable.ic_text_dot); |
| mDangerousIcon = mContext.getResources().getDrawable(R.drawable.ic_bullet_key_permission); |
| mShowMaxIcon = mContext.getResources().getDrawable(R.drawable.expander_ic_maximized); |
| mShowMinIcon = mContext.getResources().getDrawable(R.drawable.expander_ic_minimized); |
| |
| // Set permissions view |
| setPermissions(mPermsList); |
| return mPermsView; |
| } |
| |
| /** |
| * Canonicalizes the group description before it is displayed to the user. |
| * |
| * TODO check for internationalization issues remove trailing '.' in str1 |
| */ |
| private String canonicalizeGroupDesc(String groupDesc) { |
| if ((groupDesc == null) || (groupDesc.length() == 0)) { |
| return null; |
| } |
| // Both str1 and str2 are non-null and are non-zero in size. |
| int len = groupDesc.length(); |
| if(groupDesc.charAt(len-1) == '.') { |
| groupDesc = groupDesc.substring(0, len-1); |
| } |
| return groupDesc; |
| } |
| |
| /** |
| * Utility method that concatenates two strings defined by mPermFormat. |
| * a null value is returned if both str1 and str2 are null, if one of the strings |
| * is null the other non null value is returned without formatting |
| * this is to placate initial error checks |
| */ |
| private String formatPermissions(String groupDesc, CharSequence permDesc) { |
| if(groupDesc == null) { |
| if(permDesc == null) { |
| return null; |
| } |
| return permDesc.toString(); |
| } |
| groupDesc = canonicalizeGroupDesc(groupDesc); |
| if(permDesc == null) { |
| return groupDesc; |
| } |
| // groupDesc and permDesc are non null |
| return String.format(mPermFormat, groupDesc, permDesc.toString()); |
| } |
| |
| private CharSequence getGroupLabel(String grpName) { |
| if (grpName == null) { |
| //return default label |
| return mDefaultGrpLabel; |
| } |
| CharSequence cachedLabel = mGroupLabelCache.get(grpName); |
| if (cachedLabel != null) { |
| return cachedLabel; |
| } |
| PermissionGroupInfo pgi; |
| try { |
| pgi = mPm.getPermissionGroupInfo(grpName, 0); |
| } catch (NameNotFoundException e) { |
| Log.i(TAG, "Invalid group name:" + grpName); |
| return null; |
| } |
| CharSequence label = pgi.loadLabel(mPm).toString(); |
| mGroupLabelCache.put(grpName, label); |
| return label; |
| } |
| |
| /** |
| * Utility method that displays permissions from a map containing group name and |
| * list of permission descriptions. |
| */ |
| private void displayPermissions(boolean dangerous) { |
| Map<String, String> permInfoMap = dangerous ? mDangerousMap : mNormalMap; |
| LinearLayout permListView = dangerous ? mDangerousList : mNonDangerousList; |
| permListView.removeAllViews(); |
| |
| Set<String> permInfoStrSet = permInfoMap.keySet(); |
| for (String loopPermGrpInfoStr : permInfoStrSet) { |
| CharSequence grpLabel = getGroupLabel(loopPermGrpInfoStr); |
| //guaranteed that grpLabel wont be null since permissions without groups |
| //will belong to the default group |
| if(localLOGV) Log.i(TAG, "Adding view group:" + grpLabel + ", desc:" |
| + permInfoMap.get(loopPermGrpInfoStr)); |
| permListView.addView(getPermissionItemView(grpLabel, |
| permInfoMap.get(loopPermGrpInfoStr), dangerous)); |
| } |
| } |
| |
| private void displayNoPermissions() { |
| mNoPermsView.setVisibility(View.VISIBLE); |
| } |
| |
| private View getPermissionItemView(CharSequence grpName, CharSequence permList, |
| boolean dangerous) { |
| return getPermissionItemView(mContext, mInflater, grpName, permList, |
| dangerous, dangerous ? mDangerousIcon : mNormalIcon); |
| } |
| |
| private static View getPermissionItemView(Context context, LayoutInflater inflater, |
| CharSequence grpName, CharSequence permList, boolean dangerous, Drawable icon) { |
| View permView = inflater.inflate(R.layout.app_permission_item, null); |
| |
| TextView permGrpView = (TextView) permView.findViewById(R.id.permission_group); |
| TextView permDescView = (TextView) permView.findViewById(R.id.permission_list); |
| |
| ImageView imgView = (ImageView)permView.findViewById(R.id.perm_icon); |
| imgView.setImageDrawable(icon); |
| if(grpName != null) { |
| permGrpView.setText(grpName); |
| permDescView.setText(permList); |
| } else { |
| permGrpView.setText(permList); |
| permDescView.setVisibility(View.GONE); |
| } |
| return permView; |
| } |
| |
| private void showPermissions() { |
| |
| switch(mCurrentState) { |
| case NO_PERMS: |
| displayNoPermissions(); |
| break; |
| |
| case DANGEROUS_ONLY: |
| displayPermissions(true); |
| break; |
| |
| case NORMAL_ONLY: |
| displayPermissions(false); |
| break; |
| |
| case BOTH: |
| displayPermissions(true); |
| if (mExpanded) { |
| displayPermissions(false); |
| mShowMoreIcon.setImageDrawable(mShowMaxIcon); |
| mShowMoreText.setText(R.string.perms_hide); |
| mNonDangerousList.setVisibility(View.VISIBLE); |
| } else { |
| mShowMoreIcon.setImageDrawable(mShowMinIcon); |
| mShowMoreText.setText(R.string.perms_show_all); |
| mNonDangerousList.setVisibility(View.GONE); |
| } |
| mShowMore.setVisibility(View.VISIBLE); |
| break; |
| } |
| } |
| |
| private boolean isDisplayablePermission(PermissionInfo pInfo) { |
| if(pInfo.protectionLevel == PermissionInfo.PROTECTION_DANGEROUS || |
| pInfo.protectionLevel == PermissionInfo.PROTECTION_NORMAL) { |
| return true; |
| } |
| return false; |
| } |
| |
| /* |
| * Utility method that aggregates all permission descriptions categorized by group |
| * Say group1 has perm11, perm12, perm13, the group description will be |
| * perm11_Desc, perm12_Desc, perm13_Desc |
| */ |
| private void aggregateGroupDescs( |
| Map<String, List<PermissionInfo> > map, Map<String, String> retMap) { |
| if(map == null) { |
| return; |
| } |
| if(retMap == null) { |
| return; |
| } |
| Set<String> grpNames = map.keySet(); |
| Iterator<String> grpNamesIter = grpNames.iterator(); |
| while(grpNamesIter.hasNext()) { |
| String grpDesc = null; |
| String grpNameKey = grpNamesIter.next(); |
| List<PermissionInfo> grpPermsList = map.get(grpNameKey); |
| if(grpPermsList == null) { |
| continue; |
| } |
| for(PermissionInfo permInfo: grpPermsList) { |
| CharSequence permDesc = permInfo.loadLabel(mPm); |
| grpDesc = formatPermissions(grpDesc, permDesc); |
| } |
| // Insert grpDesc into map |
| if(grpDesc != null) { |
| if(localLOGV) Log.i(TAG, "Group:"+grpNameKey+" description:"+grpDesc.toString()); |
| retMap.put(grpNameKey, grpDesc.toString()); |
| } |
| } |
| } |
| |
| private static class PermissionInfoComparator implements Comparator<PermissionInfo> { |
| private PackageManager mPm; |
| private final Collator sCollator = Collator.getInstance(); |
| PermissionInfoComparator(PackageManager pm) { |
| mPm = pm; |
| } |
| public final int compare(PermissionInfo a, PermissionInfo b) { |
| CharSequence sa = a.loadLabel(mPm); |
| CharSequence sb = b.loadLabel(mPm); |
| return sCollator.compare(sa, sb); |
| } |
| } |
| |
| private void setPermissions(List<PermissionInfo> permList) { |
| mGroupLabelCache = new HashMap<String, CharSequence>(); |
| //add the default label so that uncategorized permissions can go here |
| mGroupLabelCache.put(mDefaultGrpName, mDefaultGrpLabel); |
| |
| // Map containing group names and a list of permissions under that group |
| // categorized as dangerous |
| mDangerousMap = new HashMap<String, String>(); |
| // Map containing group names and a list of permissions under that group |
| // categorized as normal |
| mNormalMap = new HashMap<String, String>(); |
| |
| // Additional structures needed to ensure that permissions are unique under |
| // each group |
| Map<String, List<PermissionInfo>> dangerousMap = |
| new HashMap<String, List<PermissionInfo>>(); |
| Map<String, List<PermissionInfo> > normalMap = |
| new HashMap<String, List<PermissionInfo>>(); |
| PermissionInfoComparator permComparator = new PermissionInfoComparator(mPm); |
| |
| if (permList != null) { |
| // First pass to group permissions |
| for (PermissionInfo pInfo : permList) { |
| if(localLOGV) Log.i(TAG, "Processing permission:"+pInfo.name); |
| if(!isDisplayablePermission(pInfo)) { |
| if(localLOGV) Log.i(TAG, "Permission:"+pInfo.name+" is not displayable"); |
| continue; |
| } |
| Map<String, List<PermissionInfo> > permInfoMap = |
| (pInfo.protectionLevel == PermissionInfo.PROTECTION_DANGEROUS) ? |
| dangerousMap : normalMap; |
| String grpName = (pInfo.group == null) ? mDefaultGrpName : pInfo.group; |
| if(localLOGV) Log.i(TAG, "Permission:"+pInfo.name+" belongs to group:"+grpName); |
| List<PermissionInfo> grpPermsList = permInfoMap.get(grpName); |
| if(grpPermsList == null) { |
| grpPermsList = new ArrayList<PermissionInfo>(); |
| permInfoMap.put(grpName, grpPermsList); |
| grpPermsList.add(pInfo); |
| } else { |
| int idx = Collections.binarySearch(grpPermsList, pInfo, permComparator); |
| if(localLOGV) Log.i(TAG, "idx="+idx+", list.size="+grpPermsList.size()); |
| if (idx < 0) { |
| idx = -idx-1; |
| grpPermsList.add(idx, pInfo); |
| } |
| } |
| } |
| // Second pass to actually form the descriptions |
| // Look at dangerous permissions first |
| aggregateGroupDescs(dangerousMap, mDangerousMap); |
| aggregateGroupDescs(normalMap, mNormalMap); |
| } |
| |
| mCurrentState = State.NO_PERMS; |
| if(mDangerousMap.size() > 0) { |
| mCurrentState = (mNormalMap.size() > 0) ? State.BOTH : State.DANGEROUS_ONLY; |
| } else if(mNormalMap.size() > 0) { |
| mCurrentState = State.NORMAL_ONLY; |
| } |
| if(localLOGV) Log.i(TAG, "mCurrentState=" + mCurrentState); |
| showPermissions(); |
| } |
| |
| public void onClick(View v) { |
| if(localLOGV) Log.i(TAG, "mExpanded="+mExpanded); |
| mExpanded = !mExpanded; |
| showPermissions(); |
| } |
| } |