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Use Guava in web app

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git-svn-id: https://zxing.googlecode.com/svn/trunk@2888 59b500cc-1b3d-0410-9834-0bbf25fbcc57
This commit is contained in:
srowen@gmail.com 2013-09-08 20:51:52 +00:00
parent c43cf419c2
commit 27cf98938d
3 changed files with 35 additions and 35 deletions
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2
zxing.appspot.com/pom.xml
View file

@ -113,7 +113,7 @@
<plugin> <plugin>
<groupId>org.apache.maven.plugins</groupId> <groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-javadoc-plugin</artifactId> <artifactId>maven-javadoc-plugin</artifactId>
<version>2.9</version> <version>2.9.1</version>
<configuration> <configuration>
<javadocVersion>1.7</javadocVersion> <javadocVersion>1.7</javadocVersion>
<header><![CDATA[ <header><![CDATA[

23
zxingorg/pom.xml
View file

@ -75,19 +75,24 @@
<scope>provided</scope> <scope>provided</scope>
</dependency> </dependency>
<dependency> <dependency>
<groupId>org.apache.commons</groupId> <groupId>org.apache.commons</groupId>
<artifactId>commons-lang3</artifactId> <artifactId>commons-lang3</artifactId>
<version>3.1</version> <version>3.1</version>
</dependency> </dependency>
<dependency> <dependency>
<groupId>commons-io</groupId> <groupId>commons-io</groupId>
<artifactId>commons-io</artifactId> <artifactId>commons-io</artifactId>
<version>2.4</version> <version>2.4</version>
</dependency> </dependency>
<dependency> <dependency>
<groupId>commons-fileupload</groupId> <groupId>commons-fileupload</groupId>
<artifactId>commons-fileupload</artifactId> <artifactId>commons-fileupload</artifactId>
<version>1.3</version> <version>1.3</version>
</dependency>
<dependency>
<groupId>com.google.guava</groupId>
<artifactId>guava</artifactId>
<version>15.0</version>
</dependency> </dependency>
</dependencies> </dependencies>

45
zxingorg/src/com/google/zxing/web/DecodeServlet.java
View file

@ -16,6 +16,11 @@
package com.google.zxing.web; package com.google.zxing.web;
import com.google.common.base.Charsets;
import com.google.common.collect.Lists;
import com.google.common.io.Resources;
import com.google.common.net.HttpHeaders;
import com.google.common.net.MediaType;
import com.google.zxing.BarcodeFormat; import com.google.zxing.BarcodeFormat;
import com.google.zxing.BinaryBitmap; import com.google.zxing.BinaryBitmap;
import com.google.zxing.ChecksumException; import com.google.zxing.ChecksumException;
@ -43,11 +48,9 @@ import org.apache.commons.io.FileCleaningTracker;
import java.awt.color.CMMException; import java.awt.color.CMMException;
import java.awt.image.BufferedImage; import java.awt.image.BufferedImage;
import java.io.BufferedReader;
import java.io.File; import java.io.File;
import java.io.IOException; import java.io.IOException;
import java.io.InputStream; import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter; import java.io.OutputStreamWriter;
import java.io.Writer; import java.io.Writer;
import java.net.HttpURLConnection; import java.net.HttpURLConnection;
@ -55,8 +58,6 @@ import java.net.MalformedURLException;
import java.net.URI; import java.net.URI;
import java.net.URISyntaxException; import java.net.URISyntaxException;
import java.net.URL; import java.net.URL;
import java.nio.charset.Charset;
import java.util.ArrayList;
import java.util.Arrays; import java.util.Arrays;
import java.util.Collection; import java.util.Collection;
import java.util.EnumMap; import java.util.EnumMap;
@ -84,13 +85,11 @@ public final class DecodeServlet extends HttpServlet {
private static final Logger log = Logger.getLogger(DecodeServlet.class.getName()); private static final Logger log = Logger.getLogger(DecodeServlet.class.getName());
private static final Charset UTF8 = Charset.forName("UTF-8"); // No real reason to let people upload more than a 4MB image
private static final long MAX_IMAGE_SIZE = 4000000L;
// No real reason to let people upload more than a 2MB image
private static final long MAX_IMAGE_SIZE = 2000000L;
// No real reason to deal with more than maybe 8.3 megapixels // No real reason to deal with more than maybe 8.3 megapixels
private static final int MAX_PIXELS = 1 << 23; private static final int MAX_PIXELS = 1 << 23;
private static final byte[] REMAINDER_BUFFER = new byte[8192]; private static final byte[] REMAINDER_BUFFER = new byte[32768];
private static final Map<DecodeHintType,Object> HINTS; private static final Map<DecodeHintType,Object> HINTS;
private static final Map<DecodeHintType,Object> HINTS_PURE; private static final Map<DecodeHintType,Object> HINTS_PURE;
@ -103,7 +102,7 @@ public final class DecodeServlet extends HttpServlet {
} }
private DiskFileItemFactory diskFileItemFactory; private DiskFileItemFactory diskFileItemFactory;
private Collection<String> blockedURLSubstrings; private Iterable<String> blockedURLSubstrings;
@Override @Override
public void init(ServletConfig servletConfig) throws ServletException { public void init(ServletConfig servletConfig) throws ServletException {
@ -115,13 +114,9 @@ public final class DecodeServlet extends HttpServlet {
diskFileItemFactory = new DiskFileItemFactory(1 << 16, repository); diskFileItemFactory = new DiskFileItemFactory(1 << 16, repository);
diskFileItemFactory.setFileCleaningTracker(fileCleaningTracker); diskFileItemFactory.setFileCleaningTracker(fileCleaningTracker);
blockedURLSubstrings = new ArrayList<>(); try {
try (BufferedReader reader = new BufferedReader(new InputStreamReader( blockedURLSubstrings =
DecodeServlet.class.getResourceAsStream("/private/uri-block-substrings.txt"), UTF8))) { Resources.readLines(Resources.getResource("/private/uri-block-substrings.txt"), Charsets.UTF_8);
String line;
while ((line = reader.readLine()) != null) {
blockedURLSubstrings.add(line);
}
} catch (IOException ioe) { } catch (IOException ioe) {
throw new ServletException(ioe); throw new ServletException(ioe);
} }
@ -194,8 +189,8 @@ public final class DecodeServlet extends HttpServlet {
connection.setAllowUserInteraction(false); connection.setAllowUserInteraction(false);
connection.setReadTimeout(5000); connection.setReadTimeout(5000);
connection.setConnectTimeout(5000); connection.setConnectTimeout(5000);
connection.setRequestProperty("User-Agent", "zxing.org"); connection.setRequestProperty(HttpHeaders.USER_AGENT, "zxing.org");
connection.setRequestProperty("Connection", "close"); connection.setRequestProperty(HttpHeaders.CONNECTION, "close");
try { try {
@ -222,7 +217,7 @@ public final class DecodeServlet extends HttpServlet {
response.sendRedirect("badurl.jspx"); response.sendRedirect("badurl.jspx");
return; return;
} }
if (connection.getHeaderFieldInt("Content-Length", 0) > MAX_IMAGE_SIZE) { if (connection.getHeaderFieldInt(HttpHeaders.CONTENT_LENGTH, 0) > MAX_IMAGE_SIZE) {
log.info("Too large"); log.info("Too large");
response.sendRedirect("badimage.jspx"); response.sendRedirect("badimage.jspx");
return; return;
@ -314,7 +309,7 @@ public final class DecodeServlet extends HttpServlet {
} }
if (image.getHeight() <= 1 || image.getWidth() <= 1 || if (image.getHeight() <= 1 || image.getWidth() <= 1 ||
image.getHeight() * image.getWidth() > MAX_PIXELS) { image.getHeight() * image.getWidth() > MAX_PIXELS) {
log.info("Dimensions too large: " + image.getWidth() + 'x' + image.getHeight()); log.info("Dimensions out of bounds: " + image.getWidth() + 'x' + image.getHeight());
response.sendRedirect("badimage.jspx"); response.sendRedirect("badimage.jspx");
return; return;
} }
@ -328,7 +323,7 @@ public final class DecodeServlet extends HttpServlet {
LuminanceSource source = new BufferedImageLuminanceSource(image); LuminanceSource source = new BufferedImageLuminanceSource(image);
BinaryBitmap bitmap = new BinaryBitmap(new GlobalHistogramBinarizer(source)); BinaryBitmap bitmap = new BinaryBitmap(new GlobalHistogramBinarizer(source));
Collection<Result> results = new ArrayList<>(1); Collection<Result> results = Lists.newArrayListWithCapacity(1);
try { try {
@ -396,9 +391,9 @@ public final class DecodeServlet extends HttpServlet {
String fullParameter = request.getParameter("full"); String fullParameter = request.getParameter("full");
boolean minimalOutput = fullParameter != null && !Boolean.parseBoolean(fullParameter); boolean minimalOutput = fullParameter != null && !Boolean.parseBoolean(fullParameter);
if (minimalOutput) { if (minimalOutput) {
response.setContentType("text/plain"); response.setContentType(MediaType.PLAIN_TEXT_UTF_8.toString());
response.setCharacterEncoding("UTF8"); response.setCharacterEncoding(Charsets.UTF_8.name());
try (Writer out = new OutputStreamWriter(response.getOutputStream(), UTF8)) { try (Writer out = new OutputStreamWriter(response.getOutputStream(), Charsets.UTF_8)) {
for (Result result : results) { for (Result result : results) {
out.write(result.getText()); out.write(result.getText());
out.write('\n'); out.write('\n');