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Merge "wifi: fix ADB URI doesn't work" into main

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This commit is contained in:
Yi Shiou (Les) Lee
2024-07-26 00:26:26 +00:00
committed by Android (Google) Code Review
parent e6198dea95 da21128568
commit ff6a1750bc
3 changed files with 241 additions and 25 deletions
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182
src/com/android/settings/wifi/dpp/AdbQrCode.java
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@@ -16,11 +16,14 @@
package com.android.settings.wifi.dpp;
import android.content.Context;
import android.net.wifi.UriParserResults;
import android.net.wifi.WifiConfiguration;
import android.text.TextUtils;
import androidx.annotation.NonNull;
import androidx.annotation.VisibleForTesting;
import java.util.Arrays;
import java.util.List;
import java.util.regex.Pattern;
/**
* Extension of WifiQrCode to support ADB QR code format.
@@ -28,34 +31,74 @@ import androidx.annotation.NonNull;
*
* WIFI:T:ADB;S:myname;P:mypassword;;
*/
public class AdbQrCode extends WifiQrCode {
public class AdbQrCode {
static final String SECURITY_ADB = "ADB";
static final String SCHEME_DPP = "DPP";
static final String SCHEME_ZXING_WIFI_NETWORK_CONFIG = "WIFI";
static final String PREFIX_DPP = "DPP:";
static final String PREFIX_ZXING_WIFI_NETWORK_CONFIG = "WIFI:";
private WifiConfiguration mAdbConfig;
static final String PREFIX_DPP_PUBLIC_KEY = "K:";
static final String PREFIX_DPP_INFORMATION = "I:";
static final String PREFIX_ZXING_SECURITY = "T:";
static final String PREFIX_ZXING_SSID = "S:";
static final String PREFIX_ZXING_PASSWORD = "P:";
static final String PREFIX_ZXING_HIDDEN_SSID = "H:";
static final String DELIMITER_QR_CODE = ";";
// Ignores password if security is SECURITY_NO_PASSWORD or absent
static final String SECURITY_NO_PASSWORD = "nopass"; //open network or OWE
static final String SECURITY_WEP = "WEP";
static final String SECURITY_WPA_PSK = "WPA";
static final String SECURITY_SAE = "SAE";
private String mQrCode;
/**
* SCHEME_DPP for standard Wi-Fi device provision protocol; SCHEME_ZXING_WIFI_NETWORK_CONFIG
* for ZXing reader library' Wi-Fi Network config format
*/
private String mScheme;
// Data from parsed Wi-Fi DPP QR code
private String mPublicKey;
private String mInformation;
// Data from parsed ZXing reader library's Wi-Fi Network config format
private WifiNetworkConfig mAdbConfig;
public AdbQrCode(String qrCode) throws IllegalArgumentException {
super(qrCode);
if (TextUtils.isEmpty(qrCode)) {
throw new IllegalArgumentException("Empty QR code");
}
mQrCode = qrCode;
if (qrCode.startsWith(PREFIX_DPP)) {
mScheme = SCHEME_DPP;
parseWifiDppQrCode(qrCode);
} else if (qrCode.startsWith(PREFIX_ZXING_WIFI_NETWORK_CONFIG)) {
mScheme = SCHEME_ZXING_WIFI_NETWORK_CONFIG;
parseZxingWifiQrCode(qrCode);
} else {
throw new IllegalArgumentException("Invalid scheme");
}
// Only accept the zxing format.
if (getScheme() != UriParserResults.URI_SCHEME_ZXING_WIFI_NETWORK_CONFIG) {
if (!SCHEME_ZXING_WIFI_NETWORK_CONFIG.equals(getScheme())) {
throw new IllegalArgumentException("DPP format not supported for ADB QR code");
}
mAdbConfig = getWifiConfiguration();
mAdbConfig = getWifiNetworkConfig();
if (mAdbConfig == null) {
throw new IllegalArgumentException("Null config when parsing ADB QR code");
if (!SECURITY_ADB.equals(mAdbConfig.getSecurity())) {
throw new IllegalArgumentException("Invalid security type");
}
if (TextUtils.isEmpty(mAdbConfig.SSID)) {
if (TextUtils.isEmpty(mAdbConfig.getSsid())) {
throw new IllegalArgumentException("Empty service name");
}
if (TextUtils.isEmpty(mAdbConfig.preSharedKey)) {
if (TextUtils.isEmpty(mAdbConfig.getPreSharedKey())) {
throw new IllegalArgumentException("Empty password");
}
}
@NonNull
public WifiConfiguration getAdbNetworkConfig() {
public WifiNetworkConfig getAdbNetworkConfig() {
return mAdbConfig;
}
@@ -67,4 +110,117 @@ public class AdbQrCode extends WifiQrCode {
public static void triggerVibrationForQrCodeRecognition(Context context) {
WifiDppUtils.triggerVibrationForQrCodeRecognition(context);
}
/** Parses Wi-Fi DPP QR code string */
private void parseWifiDppQrCode(String qrCode) throws IllegalArgumentException {
List<String> keyValueList = getKeyValueList(qrCode, PREFIX_DPP, DELIMITER_QR_CODE);
String publicKey = getValueOrNull(keyValueList, PREFIX_DPP_PUBLIC_KEY);
if (TextUtils.isEmpty(publicKey)) {
throw new IllegalArgumentException("Invalid format");
}
mPublicKey = publicKey;
mInformation = getValueOrNull(keyValueList, PREFIX_DPP_INFORMATION);
}
/** Parses ZXing reader library's Wi-Fi Network config format */
private void parseZxingWifiQrCode(String qrCode) throws IllegalArgumentException {
List<String> keyValueList = getKeyValueList(qrCode, PREFIX_ZXING_WIFI_NETWORK_CONFIG,
DELIMITER_QR_CODE);
String security = getValueOrNull(keyValueList, PREFIX_ZXING_SECURITY);
String ssid = getValueOrNull(keyValueList, PREFIX_ZXING_SSID);
String password = getValueOrNull(keyValueList, PREFIX_ZXING_PASSWORD);
String hiddenSsidString = getValueOrNull(keyValueList, PREFIX_ZXING_HIDDEN_SSID);
boolean hiddenSsid = "true".equalsIgnoreCase(hiddenSsidString);
//"\", ";", "," and ":" are escaped with a backslash "\", should remove at first
security = removeBackSlash(security);
ssid = removeBackSlash(ssid);
password = removeBackSlash(password);
mAdbConfig = WifiNetworkConfig.getValidConfigOrNull(security, ssid, password,
hiddenSsid, WifiConfiguration.INVALID_NETWORK_ID, /* isHotspot */ false);
if (mAdbConfig == null) {
throw new IllegalArgumentException("Invalid format");
}
}
/**
* Splits key/value pairs from qrCode
*
* @param qrCode the QR code raw string
* @param prefixQrCode the string before all key/value pairs in qrCode
* @param delimiter the string to split key/value pairs, can't contain a backslash
* @return a list contains string of key/value (e.g. K:key1)
*/
private List<String> getKeyValueList(String qrCode, String prefixQrCode,
String delimiter) {
String keyValueString = qrCode.substring(prefixQrCode.length());
// Should not treat \delimiter as a delimiter
String regex = "(?<!\\\\)" + Pattern.quote(delimiter);
return Arrays.asList(keyValueString.split(regex));
}
private String getValueOrNull(List<String> keyValueList, String prefix) {
for (String keyValue : keyValueList) {
String strippedKeyValue = keyValue.stripLeading();
if (strippedKeyValue.startsWith(prefix)) {
return strippedKeyValue.substring(prefix.length());
}
}
return null;
}
@VisibleForTesting
String removeBackSlash(String input) {
if (input == null) {
return null;
}
StringBuilder sb = new StringBuilder();
boolean backSlash = false;
for (char ch : input.toCharArray()) {
if (ch != '\\') {
sb.append(ch);
backSlash = false;
} else {
if (backSlash) {
sb.append(ch);
backSlash = false;
continue;
}
backSlash = true;
}
}
return sb.toString();
}
String getQrCode() {
return mQrCode;
}
/**
* Uses to check type of QR code
*
* SCHEME_DPP for standard Wi-Fi device provision protocol; SCHEME_ZXING_WIFI_NETWORK_CONFIG
* for ZXing reader library' Wi-Fi Network config format
*/
public String getScheme() {
return mScheme;
}
/** Available when {@code getScheme()} returns SCHEME_DPP */
@VisibleForTesting
String getPublicKey() {
return mPublicKey;
}
/** May be available when {@code getScheme()} returns SCHEME_DPP */
public String getInformation() {
return mInformation;
}
/** Available when {@code getScheme()} returns SCHEME_ZXING_WIFI_NETWORK_CONFIG */
WifiNetworkConfig getWifiNetworkConfig() {
if (mAdbConfig == null) {
return null;
}
return new WifiNetworkConfig(mAdbConfig);
}
}