| 1 | // License: GPL. For details, see LICENSE file. |
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| 2 | package org.openstreetmap.josm.plugins; |
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| 3 | |
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| 4 | import static org.openstreetmap.josm.tools.I18n.tr; |
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| 5 | |
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| 6 | import java.io.BufferedReader; |
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| 7 | import java.io.ByteArrayInputStream; |
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| 8 | import java.io.File; |
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| 9 | import java.io.FileOutputStream; |
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| 10 | import java.io.FilenameFilter; |
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| 11 | import java.io.IOException; |
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| 12 | import java.io.InputStream; |
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| 13 | import java.io.InputStreamReader; |
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| 14 | import java.io.OutputStream; |
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| 15 | import java.io.OutputStreamWriter; |
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| 16 | import java.io.PrintWriter; |
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| 17 | import java.io.UnsupportedEncodingException; |
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| 18 | import java.net.HttpURLConnection; |
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| 19 | import java.net.MalformedURLException; |
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| 20 | import java.net.URL; |
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| 21 | import java.util.ArrayList; |
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| 22 | import java.util.Arrays; |
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| 23 | import java.util.Collection; |
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| 24 | import java.util.Collections; |
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| 25 | import java.util.HashSet; |
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| 26 | import java.util.LinkedList; |
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| 27 | import java.util.List; |
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| 28 | |
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| 29 | import org.openstreetmap.josm.Main; |
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| 30 | import org.openstreetmap.josm.data.Version; |
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| 31 | import org.openstreetmap.josm.gui.PleaseWaitRunnable; |
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| 32 | import org.openstreetmap.josm.gui.progress.NullProgressMonitor; |
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| 33 | import org.openstreetmap.josm.gui.progress.ProgressMonitor; |
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| 34 | import org.openstreetmap.josm.io.OsmTransferException; |
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| 35 | import org.openstreetmap.josm.tools.ImageProvider; |
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| 36 | import org.openstreetmap.josm.tools.Utils; |
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| 37 | import org.xml.sax.SAXException; |
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| 38 | |
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| 39 | /** |
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| 40 | * An asynchronous task for downloading plugin lists from the configured plugin download |
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| 41 | * sites. |
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| 42 | * |
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| 43 | */ |
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| 44 | public class ReadRemotePluginInformationTask extends PleaseWaitRunnable{ |
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| 45 | |
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| 46 | private Collection<String> sites; |
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| 47 | private boolean canceled; |
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| 48 | private HttpURLConnection connection; |
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| 49 | private List<PluginInformation> availablePlugins; |
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| 50 | |
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| 51 | protected enum CacheType {PLUGIN_LIST, ICON_LIST} |
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| 52 | |
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| 53 | protected void init(Collection<String> sites){ |
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| 54 | this.sites = sites; |
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| 55 | if (sites == null) { |
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| 56 | this.sites = Collections.emptySet(); |
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| 57 | } |
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| 58 | availablePlugins = new LinkedList<PluginInformation>(); |
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| 59 | |
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| 60 | } |
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| 61 | /** |
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| 62 | * Creates the task |
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| 63 | * |
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| 64 | * @param sites the collection of download sites. Defaults to the empty collection if null. |
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| 65 | */ |
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| 66 | public ReadRemotePluginInformationTask(Collection<String> sites) { |
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| 67 | super(tr("Download plugin list..."), false /* don't ignore exceptions */); |
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| 68 | init(sites); |
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| 69 | } |
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| 70 | |
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| 71 | /** |
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| 72 | * Creates the task |
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| 73 | * |
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| 74 | * @param monitor the progress monitor. Defaults to {@see NullProgressMonitor#INSTANCE} if null |
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| 75 | * @param sites the collection of download sites. Defaults to the empty collection if null. |
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| 76 | */ |
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| 77 | public ReadRemotePluginInformationTask(ProgressMonitor monitor, Collection<String> sites) { |
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| 78 | super(tr("Download plugin list..."), monitor == null ? NullProgressMonitor.INSTANCE: monitor, false /* don't ignore exceptions */); |
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| 79 | init(sites); |
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| 80 | } |
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| 81 | |
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| 82 | |
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| 83 | @Override |
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| 84 | protected void cancel() { |
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| 85 | canceled = true; |
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| 86 | synchronized(this) { |
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| 87 | if (connection != null) { |
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| 88 | connection.disconnect(); |
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| 89 | } |
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| 90 | } |
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| 91 | } |
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| 92 | |
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| 93 | @Override |
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| 94 | protected void finish() {} |
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| 95 | |
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| 96 | /** |
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| 97 | * Creates the file name for the cached plugin list and the icon cache |
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| 98 | * file. |
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| 99 | * |
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| 100 | * @param site the name of the site |
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| 101 | * @param type icon cache or plugin list cache |
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| 102 | * @return the file name for the cache file |
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| 103 | */ |
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| 104 | protected File createSiteCacheFile(File pluginDir, String site, CacheType type) { |
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| 105 | String name; |
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| 106 | try { |
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| 107 | site = site.replaceAll("%<(.*)>", ""); |
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| 108 | URL url = new URL(site); |
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| 109 | StringBuilder sb = new StringBuilder(); |
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| 110 | sb.append("site-"); |
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| 111 | sb.append(url.getHost()).append("-"); |
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| 112 | if (url.getPort() != -1) { |
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| 113 | sb.append(url.getPort()).append("-"); |
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| 114 | } |
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| 115 | String path = url.getPath(); |
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| 116 | for (int i =0;i<path.length(); i++) { |
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| 117 | char c = path.charAt(i); |
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| 118 | if (Character.isLetterOrDigit(c)) { |
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| 119 | sb.append(c); |
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| 120 | } else { |
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| 121 | sb.append("_"); |
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| 122 | } |
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| 123 | } |
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| 124 | switch (type) { |
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| 125 | case PLUGIN_LIST: |
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| 126 | sb.append(".txt"); |
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| 127 | break; |
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| 128 | case ICON_LIST: |
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| 129 | sb.append("-icons.zip"); |
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| 130 | break; |
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| 131 | } |
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| 132 | name = sb.toString(); |
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| 133 | } catch(MalformedURLException e) { |
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| 134 | name = "site-unknown.txt"; |
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| 135 | } |
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| 136 | return new File(pluginDir, name); |
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| 137 | } |
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| 138 | |
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| 139 | /** |
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| 140 | * Downloads the list from a remote location |
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| 141 | * |
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| 142 | * @param site the site URL |
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| 143 | * @param monitor a progress monitor |
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| 144 | * @return the downloaded list |
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| 145 | */ |
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| 146 | protected String downloadPluginList(String site, ProgressMonitor monitor) { |
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| 147 | BufferedReader in = null; |
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| 148 | StringBuilder sb = new StringBuilder(); |
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| 149 | try { |
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| 150 | /* replace %<x> with empty string or x=plugins (separated with comma) */ |
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| 151 | String pl = Utils.join(",", Main.pref.getCollection("plugins")); |
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| 152 | String printsite = site.replaceAll("%<(.*)>", ""); |
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| 153 | if(pl != null && pl.length() != 0) { |
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| 154 | site = site.replaceAll("%<(.*)>", "$1"+pl); |
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| 155 | } else { |
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| 156 | site = printsite; |
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| 157 | } |
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| 158 | |
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| 159 | monitor.beginTask(""); |
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| 160 | monitor.indeterminateSubTask(tr("Downloading plugin list from ''{0}''", printsite)); |
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| 161 | |
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| 162 | URL url = new URL(site); |
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| 163 | synchronized(this) { |
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| 164 | connection = (HttpURLConnection)url.openConnection(); |
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| 165 | connection.setRequestProperty("Cache-Control", "no-cache"); |
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| 166 | connection.setRequestProperty("User-Agent",Version.getInstance().getAgentString()); |
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| 167 | connection.setRequestProperty("Host", url.getHost()); |
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| 168 | connection.setRequestProperty("Accept-Charset", "utf-8"); |
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| 169 | } |
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| 170 | in = new BufferedReader(new InputStreamReader(connection.getInputStream(), "UTF-8")); |
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| 171 | String line; |
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| 172 | while((line = in.readLine()) != null) { |
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| 173 | sb.append(line).append("\n"); |
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| 174 | } |
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| 175 | return sb.toString(); |
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| 176 | } catch(MalformedURLException e) { |
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| 177 | if (canceled) return null; |
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| 178 | e.printStackTrace(); |
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| 179 | return null; |
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| 180 | } catch(IOException e) { |
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| 181 | if (canceled) return null; |
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| 182 | e.printStackTrace(); |
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| 183 | return null; |
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| 184 | } finally { |
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| 185 | synchronized(this) { |
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| 186 | if (connection != null) { |
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| 187 | connection.disconnect(); |
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| 188 | } |
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| 189 | connection = null; |
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| 190 | } |
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| 191 | Utils.close(in); |
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| 192 | monitor.finishTask(); |
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| 193 | } |
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| 194 | } |
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| 195 | |
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| 196 | /** |
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| 197 | * Downloads the icon archive from a remote location |
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| 198 | * |
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| 199 | * @param site the site URL |
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| 200 | * @param monitor a progress monitor |
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| 201 | */ |
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| 202 | protected void downloadPluginIcons(String site, File destFile, ProgressMonitor monitor) { |
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| 203 | InputStream in = null; |
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| 204 | OutputStream out = null; |
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| 205 | try { |
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| 206 | site = site.replaceAll("%<(.*)>", ""); |
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| 207 | |
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| 208 | monitor.beginTask(""); |
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| 209 | monitor.indeterminateSubTask(tr("Downloading plugin list from ''{0}''", site)); |
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| 210 | |
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| 211 | URL url = new URL(site); |
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| 212 | synchronized(this) { |
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| 213 | connection = (HttpURLConnection)url.openConnection(); |
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| 214 | connection.setRequestProperty("Cache-Control", "no-cache"); |
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| 215 | connection.setRequestProperty("User-Agent",Version.getInstance().getAgentString()); |
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| 216 | connection.setRequestProperty("Host", url.getHost()); |
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| 217 | } |
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| 218 | in = connection.getInputStream(); |
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| 219 | out = new FileOutputStream(destFile); |
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| 220 | byte[] buffer = new byte[8192]; |
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| 221 | for (int read = in.read(buffer); read != -1; read = in.read(buffer)) { |
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| 222 | out.write(buffer, 0, read); |
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| 223 | } |
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| 224 | out.close(); |
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| 225 | in.close(); |
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| 226 | } catch(MalformedURLException e) { |
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| 227 | if (canceled) return; |
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| 228 | e.printStackTrace(); |
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| 229 | return; |
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| 230 | } catch(IOException e) { |
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| 231 | if (canceled) return; |
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| 232 | e.printStackTrace(); |
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| 233 | return; |
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| 234 | } finally { |
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| 235 | synchronized(this) { |
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| 236 | if (connection != null) { |
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| 237 | connection.disconnect(); |
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| 238 | } |
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| 239 | connection = null; |
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| 240 | } |
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| 241 | Utils.close(in); |
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| 242 | monitor.finishTask(); |
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| 243 | } |
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| 244 | for (PluginInformation pi : availablePlugins) { |
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| 245 | if (pi.icon == null && pi.iconPath != null) { |
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| 246 | pi.icon = new ImageProvider(pi.name+".jar/"+pi.iconPath) |
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| 247 | .setArchive(destFile) |
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| 248 | .setMaxWidth(24) |
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| 249 | .setMaxHeight(24) |
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| 250 | .setOptional(true).get(); |
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| 251 | } |
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| 252 | } |
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| 253 | } |
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| 254 | |
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| 255 | /** |
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| 256 | * Writes the list of plugins to a cache file |
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| 257 | * |
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| 258 | * @param site the site from where the list was downloaded |
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| 259 | * @param list the downloaded list |
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| 260 | */ |
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| 261 | protected void cachePluginList(String site, String list) { |
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| 262 | PrintWriter writer = null; |
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| 263 | try { |
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| 264 | File pluginDir = Main.pref.getPluginsDirectory(); |
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| 265 | if (!pluginDir.exists()) { |
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| 266 | if (! pluginDir.mkdirs()) { |
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| 267 | System.err.println(tr("Warning: failed to create plugin directory ''{0}''. Cannot cache plugin list from plugin site ''{1}''.", pluginDir.toString(), site)); |
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| 268 | } |
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| 269 | } |
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| 270 | File cacheFile = createSiteCacheFile(pluginDir, site, CacheType.PLUGIN_LIST); |
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| 271 | getProgressMonitor().subTask(tr("Writing plugin list to local cache ''{0}''", cacheFile.toString())); |
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| 272 | writer = new PrintWriter(new OutputStreamWriter(new FileOutputStream(cacheFile), "utf-8")); |
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| 273 | writer.write(list); |
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| 274 | } catch(IOException e) { |
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| 275 | // just failed to write the cache file. No big deal, but log the exception anyway |
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| 276 | e.printStackTrace(); |
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| 277 | } finally { |
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| 278 | if (writer != null) { |
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| 279 | writer.flush(); |
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| 280 | writer.close(); |
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| 281 | } |
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| 282 | } |
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| 283 | } |
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| 284 | |
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| 285 | /** |
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| 286 | * Filter information about deprecated plugins from the list of downloaded |
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| 287 | * plugins |
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| 288 | * |
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| 289 | * @param plugins the plugin informations |
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| 290 | * @return the plugin informations, without deprecated plugins |
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| 291 | */ |
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| 292 | protected List<PluginInformation> filterDeprecatedPlugins(List<PluginInformation> plugins) { |
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| 293 | List<PluginInformation> ret = new ArrayList<PluginInformation>(plugins.size()); |
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| 294 | HashSet<String> deprecatedPluginNames = new HashSet<String>(); |
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| 295 | for (PluginHandler.DeprecatedPlugin p : PluginHandler.DEPRECATED_PLUGINS) { |
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| 296 | deprecatedPluginNames.add(p.name); |
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| 297 | } |
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| 298 | for (PluginInformation plugin: plugins) { |
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| 299 | if (deprecatedPluginNames.contains(plugin.name)) { |
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| 300 | continue; |
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| 301 | } |
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| 302 | ret.add(plugin); |
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| 303 | } |
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| 304 | return ret; |
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| 305 | } |
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| 306 | |
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| 307 | /** |
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| 308 | * Parses the plugin list |
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| 309 | * |
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| 310 | * @param site the site from where the list was downloaded |
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| 311 | * @param doc the document with the plugin list |
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| 312 | */ |
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| 313 | protected void parsePluginListDocument(String site, String doc) { |
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| 314 | try { |
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| 315 | getProgressMonitor().subTask(tr("Parsing plugin list from site ''{0}''", site)); |
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| 316 | InputStream in = new ByteArrayInputStream(doc.getBytes("UTF-8")); |
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| 317 | List<PluginInformation> pis = new PluginListParser().parse(in); |
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| 318 | availablePlugins.addAll(filterDeprecatedPlugins(pis)); |
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| 319 | } catch(UnsupportedEncodingException e) { |
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| 320 | System.err.println(tr("Failed to parse plugin list document from site ''{0}''. Skipping site. Exception was: {1}", site, e.toString())); |
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| 321 | e.printStackTrace(); |
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| 322 | } catch(PluginListParseException e) { |
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| 323 | System.err.println(tr("Failed to parse plugin list document from site ''{0}''. Skipping site. Exception was: {1}", site, e.toString())); |
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| 324 | e.printStackTrace(); |
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| 325 | } |
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| 326 | } |
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| 327 | |
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| 328 | @Override |
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| 329 | protected void realRun() throws SAXException, IOException, OsmTransferException { |
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| 330 | if (sites == null) return; |
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| 331 | getProgressMonitor().setTicksCount(sites.size() * 3); |
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| 332 | File pluginDir = Main.pref.getPluginsDirectory(); |
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| 333 | |
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| 334 | // collect old cache files and remove if no longer in use |
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| 335 | List<File> siteCacheFiles = new LinkedList<File>(); |
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| 336 | for (String location : PluginInformation.getPluginLocations()) { |
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| 337 | File [] f = new File(location).listFiles( |
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| 338 | new FilenameFilter() { |
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| 339 | public boolean accept(File dir, String name) { |
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| 340 | return name.matches("^([0-9]+-)?site.*\\.txt$") || |
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| 341 | name.matches("^([0-9]+-)?site.*-icons\\.zip$"); |
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| 342 | } |
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| 343 | } |
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| 344 | ); |
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| 345 | if(f != null && f.length > 0) { |
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| 346 | siteCacheFiles.addAll(Arrays.asList(f)); |
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| 347 | } |
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| 348 | } |
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| 349 | |
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| 350 | for (String site: sites) { |
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| 351 | String printsite = site.replaceAll("%<(.*)>", ""); |
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| 352 | getProgressMonitor().subTask(tr("Processing plugin list from site ''{0}''", printsite)); |
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| 353 | String list = downloadPluginList(site, getProgressMonitor().createSubTaskMonitor(0, false)); |
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| 354 | if (canceled) return; |
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| 355 | siteCacheFiles.remove(createSiteCacheFile(pluginDir, site, CacheType.PLUGIN_LIST)); |
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| 356 | siteCacheFiles.remove(createSiteCacheFile(pluginDir, site, CacheType.ICON_LIST)); |
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| 357 | if(list != null) |
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| 358 | { |
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| 359 | getProgressMonitor().worked(1); |
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| 360 | cachePluginList(site, list); |
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| 361 | if (canceled) return; |
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| 362 | getProgressMonitor().worked(1); |
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| 363 | parsePluginListDocument(site, list); |
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| 364 | if (canceled) return; |
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| 365 | getProgressMonitor().worked(1); |
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| 366 | if (canceled) return; |
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| 367 | } |
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| 368 | downloadPluginIcons(site+"-icons.zip", createSiteCacheFile(pluginDir, site, CacheType.ICON_LIST), getProgressMonitor().createSubTaskMonitor(0, false)); |
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| 369 | } |
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| 370 | for (File file: siteCacheFiles) /* remove old stuff or whole update process is broken */ |
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| 371 | { |
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| 372 | file.delete(); |
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| 373 | } |
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| 374 | } |
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| 375 | |
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| 376 | /** |
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| 377 | * Replies true if the task was canceled |
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| 378 | * @return |
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| 379 | */ |
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| 380 | public boolean isCanceled() { |
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| 381 | return canceled; |
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| 382 | } |
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| 383 | |
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| 384 | /** |
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| 385 | * Replies the list of plugins described in the downloaded plugin lists |
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| 386 | * |
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| 387 | * @return the list of plugins |
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| 388 | */ |
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| 389 | public List<PluginInformation> getAvailabePlugins() { |
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| 390 | return availablePlugins; |
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| 391 | } |
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| 392 | } |
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