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replaced 4-line regex blocks with call to equivalent method; removed unecessary try-catch blocks surrounding them: regex methods don't throw runtime exceptions

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This commit is contained in:
Adam Howard 2015-11-03 12:56:11 +00:00
parent 7e193751c4
commit 3c72113f4c
4 changed files with 34 additions and 60 deletions
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4
.idea/gradle.xml
View file

@ -6,7 +6,7 @@
<option name="distributionType" value="LOCAL" />
<option name="externalProjectPath" value="$PROJECT_DIR$" />
<option name="gradleHome" value="$APPLICATION_HOME_DIR$/gradle/gradle-2.4" />
<option name="gradleJvm" value="1.8" />
<option name="gradleJvm" value="1.7" />
<option name="modules">
<set>
<option value="$PROJECT_DIR$" />
@ -16,4 +16,4 @@
</GradleProjectSettings>
</option>
</component>
</project>
</project>

4
.idea/misc.xml
View file

@ -37,10 +37,10 @@
<ConfirmationsSetting value="0" id="Add" />
<ConfirmationsSetting value="0" id="Remove" />
</component>
<component name="ProjectRootManager" version="2" languageLevel="JDK_1_7" default="true" assert-keyword="true" jdk-15="true" project-jdk-name="1.8" project-jdk-type="JavaSDK">
<component name="ProjectRootManager" version="2" languageLevel="JDK_1_7" default="true" assert-keyword="true" jdk-15="true" project-jdk-name="1.7" project-jdk-type="JavaSDK">
<output url="file://$PROJECT_DIR$/build/classes" />
</component>
<component name="ProjectType">
<option name="id" value="Android" />
</component>
</project>
</project>

8
app/app.iml
View file

@ -92,12 +92,12 @@
</content>
<orderEntry type="jdk" jdkName="Android API 23 Platform" jdkType="Android SDK" />
<orderEntry type="sourceFolder" forTests="false" />
<orderEntry type="library" exported="" name="rhino-1.7.7" level="project" />
<orderEntry type="library" exported="" name="recyclerview-v7-23.1.0" level="project" />
<orderEntry type="library" exported="" name="support-annotations-23.1.0" level="project" />
<orderEntry type="library" exported="" name="appcompat-v7-23.1.0" level="project" />
<orderEntry type="library" exported="" name="design-23.1.0" level="project" />
<orderEntry type="library" exported="" name="jsoup-1.8.3" level="project" />
<orderEntry type="library" exported="" name="support-v4-23.1.0" level="project" />
<orderEntry type="library" exported="" name="rhino-1.7.7" level="project" />
<orderEntry type="library" exported="" name="design-23.1.0" level="project" />
<orderEntry type="library" exported="" name="appcompat-v7-23.1.0" level="project" />
<orderEntry type="library" exported="" name="support-annotations-23.1.0" level="project" />
</component>
</module>

78
app/src/main/java/org/schabi/newpipe/youtube/YoutubeExtractor.java
View file

@ -3,6 +3,7 @@ package org.schabi.newpipe.youtube;
import android.util.Log;
import android.util.Xml;
import org.json.JSONException;
import org.json.JSONObject;
import org.jsoup.Jsoup;
import org.jsoup.nodes.Document;
@ -141,14 +142,7 @@ public class YoutubeExtractor implements Extractor {
Document doc = Jsoup.parse(site, siteUrl);
try {
Pattern p = Pattern.compile("v=([0-9a-zA-Z]*)");
Matcher m = p.matcher(siteUrl);
m.find();
videoInfo.id = m.group(1);
} catch (Exception e) {
e.printStackTrace();
}
videoInfo.id = matchGroup1("v=([0-9a-zA-Z]*)", siteUrl);
videoInfo.age_limit = 0;
videoInfo.webpage_url = siteUrl;
@ -160,16 +154,14 @@ public class YoutubeExtractor implements Extractor {
JSONObject ytAssets = null;
String dashManifest;
{
Pattern p = Pattern.compile("ytplayer.config\\s*=\\s*(\\{.*?\\});");
Matcher m = p.matcher(site);
m.find();
String jsonString = matchGroup1("ytplayer.config\\s*=\\s*(\\{.*?\\});", site);
try {
playerArgs = (new JSONObject(m.group(1)))
.getJSONObject("args");
ytAssets = (new JSONObject(m.group(1)))
.getJSONObject("assets");
}catch (Exception e) {
JSONObject jsonObj = new JSONObject(jsonString);
playerArgs = jsonObj.getJSONObject("args");
ytAssets = jsonObj.getJSONObject("assets");
}
catch (Exception e) {
e.printStackTrace();
// If we fail in this part the video is most likely not available.
// Determining why is done later.
@ -263,15 +255,9 @@ public class YoutubeExtractor implements Extractor {
// upload date
videoInfo.upload_date = doc.select("strong[class=\"watch-time-text\"").first()
.text();
// Try to only use date not the text around it
try {
Pattern p = Pattern.compile("([0-9.]*$)");
Matcher m = p.matcher(videoInfo.upload_date);
m.find();
videoInfo.upload_date = m.group(1);
} catch (Exception e) {
e.printStackTrace();
}
videoInfo.upload_date = matchGroup1("([0-9.]*$)", videoInfo.upload_date);
// description
videoInfo.description = doc.select("p[id=\"eow-description\"]").first()
@ -324,14 +310,10 @@ public class YoutubeExtractor implements Extractor {
if(!dashManifest.contains("/signature/")) {
String encryptedSig = "";
String decryptedSig;
try {
Pattern p = Pattern.compile("/s/([a-fA-F0-9\\.]+)");
Matcher m = p.matcher(dashManifest);
m.find();
encryptedSig = m.group(1);
} catch (Exception e) {
e.printStackTrace();
}
//regex methods do not throw runtime exceptions, if their arguments are valid
encryptedSig = matchGroup1("/s/([a-fA-F0-9\\.]+)", dashManifest);
decryptedSig = decryptSignature(encryptedSig, decryptoinCode);
dashManifest = dashManifest.replace("/s/" + encryptedSig, "/signature/" + decryptedSig);
}
@ -396,10 +378,7 @@ public class YoutubeExtractor implements Extractor {
info.webpage_url = li.select("a[class*=\"content-link\"]").first()
.attr("abs:href");
try {
Pattern p = Pattern.compile("v=([0-9a-zA-Z-]*)");
Matcher m = p.matcher(info.webpage_url);
m.find();
info.id=m.group(1);
info.id = matchGroup1("v=([0-9a-zA-Z-]*)", info.webpage_url);
} catch (Exception e) {
e.printStackTrace();
}
@ -446,27 +425,15 @@ public class YoutubeExtractor implements Extractor {
String decryptionCode;
try {
Pattern p = Pattern.compile("\\.sig\\|\\|([a-zA-Z0-9$]+)\\(");
Matcher m = p.matcher(playerCode);
m.find();
decryptionFuncName = m.group(1);
decryptionFuncName = matchGroup1("\\.sig\\|\\|([a-zA-Z0-9$]+)\\(", playerCode);
String functionPattern = "(function " + decryptionFuncName.replace("$", "\\$") + "\\([a-zA-Z0-9_]*\\)\\{.+?\\})";
p = Pattern.compile(functionPattern);
m = p.matcher(playerCode);
m.find();
decryptionFunc = m.group(1);
decryptionFunc = matchGroup1(functionPattern, playerCode);
p = Pattern.compile(";([A-Za-z0-9_\\$]{2})\\...\\(");
m = p.matcher(decryptionFunc);
m.find();
helperObjectName = m.group(1);
helperObjectName = matchGroup1(";([A-Za-z0-9_\\$]{2})\\...\\(", decryptionFunc);
String helperPattern = "(var " + helperObjectName.replace("$", "\\$") + "=\\{.+?\\}\\};)function";
p = Pattern.compile(helperPattern);
m = p.matcher(playerCode);
m.find();
helperObject = m.group(1);
helperObject = matchGroup1(helperPattern, playerCode);
} catch (Exception e) {
e.printStackTrace();
@ -493,4 +460,11 @@ public class YoutubeExtractor implements Extractor {
Context.exit();
return result.toString();
}
private String matchGroup1(String pattern, String input) {
Pattern pat = Pattern.compile(pattern);
Matcher mat = pat.matcher(input);
mat.find();
return mat.group(1);
}
}