| | |
| | | |
| | | package de.uhilger.wbx; |
| | | |
| | | import de.uhilger.wbx.data.Inhalt; |
| | | import java.io.File; |
| | | import java.io.FileReader; |
| | | import java.util.ArrayList; |
| | | import java.util.Collections; |
| | | import java.util.Comparator; |
| | | import java.util.Iterator; |
| | | import java.util.List; |
| | | import java.util.logging.Level; |
| | | import java.util.logging.Logger; |
| | | import javax.naming.Context; |
| | | import javax.naming.InitialContext; |
| | | import javax.naming.NamingException; |
| | | import javax.servlet.ServletContext; |
| | | |
| | | /** |
| | |
| | | |
| | | private static final Logger logger = Logger.getLogger(WbxUtils.class.getName()); |
| | | |
| | | //public static final String FILE_BASE = "filebase"; |
| | | //public static final String DATENABLAGE = "datenAblage"; |
| | | public static final String JNDI_CTX_NAME = "java:comp/env"; |
| | | |
| | | public static final String NOT_FOUND = " nicht gefunden"; |
| | | public static final String NO_STRING = " ist kein String"; |
| | | public static final String EMPTY_STRING = ""; |
| | | |
| | | public static final String WBX_FILE_BASE = "wbxFileBase"; |
| | | |
| | | public static final String WBX_PUB_DIR_NAME = "wbxPubDirName"; |
| | | public static final String WBX_DEFAULT_PUB_DIR_NAME = "/www"; |
| | | |
| | | public static final String WBX_PUB_URL_NAME = "wbxPubUrlName"; |
| | | public static final String WBX_DEFAULT_PUB_URL_NAME = "/data"; |
| | | |
| | | /** |
| | | * Bei der WebBox ist das Datenverzeichnis relativ zum Verzeichnis |
| | |
| | | * |
| | | * @return Verzeichnis 'daten' der WebBox |
| | | */ |
| | | /* |
| | | public static File getWbxDataDir(ServletContext ctx) { |
| | | File file = getWbxDir(ctx); |
| | | public File getWbxDataDir() { |
| | | File file = getWbxDir(); |
| | | file = new File(file, "daten/"); |
| | | logger.fine("WebBox Datenbasis: " + file.getAbsolutePath()); |
| | | return file; |
| | | } |
| | | |
| | | public static File getWbxDir(ServletContext ctx) { |
| | | String path = ctx.getRealPath("/"); |
| | | logger.fine("getRealPath: " + path); // file-cms in webapps |
| | | File file = new File(path); |
| | | file = file.getParentFile().getParentFile().getParentFile().getParentFile(); |
| | | logger.fine("WebBox: " + file.getAbsolutePath()); |
| | | return file; |
| | | public File getWbxDir() { |
| | | logger.fine("Catalina Base: " + System.getProperty("catalina.base")); |
| | | File catalinaBase = new File(System.getProperty("catalina.base")); |
| | | File wbxDir = catalinaBase.getParentFile().getParentFile(); |
| | | return wbxDir; |
| | | } |
| | | */ |
| | | |
| | | public List<Inhalt> collectFiles(String requestUrl, String contextPath, |
| | | String relativePath, int maxTiefe, int maxAnzahl, int length) { |
| | | Bild bild = new Bild(); |
| | | //WbxUtils wu = new WbxUtils(); |
| | | String basis = getJNDIParameter(WBX_FILE_BASE, WbxUtils.EMPTY_STRING); |
| | | if(basis.equals(WbxUtils.EMPTY_STRING)) { |
| | | basis = getWbxDataDir().getAbsolutePath(); |
| | | } |
| | | String pubDirName = getJNDIParameter(WbxUtils.WBX_PUB_DIR_NAME, WbxUtils.WBX_DEFAULT_PUB_DIR_NAME); |
| | | String pubUrlName = getJNDIParameter(WbxUtils.WBX_PUB_URL_NAME, WbxUtils.WBX_DEFAULT_PUB_URL_NAME); |
| | | String relPath = relativePath.replace(pubUrlName, pubDirName); |
| | | String absPath = basis + relPath; |
| | | |
| | | ArrayList beitraege = new ArrayList(); |
| | | ArrayList<Inhalt> files = new ArrayList<>(); |
| | | collectFiles(new File(absPath), 0, beitraege, maxTiefe, maxAnzahl); |
| | | |
| | | Iterator i = beitraege.iterator(); |
| | | while(i.hasNext()) { |
| | | File beitrag = (File) i.next(); |
| | | Inhalt cont = new Inhalt(); |
| | | cont.setMimetype(bild.getMimeType(beitrag)); |
| | | cont.setIsDirectory(beitrag.isDirectory()); |
| | | cont.setIsHidden(beitrag.isHidden()); |
| | | cont.setLastModified(beitrag.lastModified()); |
| | | cont.setLength(beitrag.length()); |
| | | if(length > 0) { |
| | | cont.setAbst(getFileContent(beitrag, length)); |
| | | } |
| | | |
| | | /* |
| | | den 'https://..'-Teil bis vor dem |
| | | ContextPath ermitteln |
| | | */ |
| | | //String requestUrl = getRequest().getRequestURL().toString(); |
| | | //String contextPath = getRequest().getContextPath(); |
| | | int pos = requestUrl.indexOf(contextPath); |
| | | |
| | | /* |
| | | den Teil des Pfades ermitteln, der zwischen dem |
| | | ContextPath zum oeffentlichen Ordner und dem Dateiname |
| | | steht |
| | | */ |
| | | String absolutePath = beitrag.getAbsolutePath(); |
| | | absolutePath = absolutePath.replace(beitrag.getName(), ""); |
| | | absolutePath = absolutePath.replace(pubDirName, ""); |
| | | String part = relativePath.replace(pubUrlName, ""); |
| | | int pos2 = absolutePath.indexOf(part); |
| | | String mittelteil = absolutePath.substring(pos2); |
| | | mittelteil = mittelteil.replace(part, ""); |
| | | cont.setBase(requestUrl.substring(0, pos)); |
| | | |
| | | cont.setUrl(/*requestUrl.substring(0, pos) + "/data" + */ mittelteil + beitrag.getName()); |
| | | files.add(cont); |
| | | } |
| | | return files; |
| | | } |
| | | |
| | | private String getFileContent(File file, int len) { |
| | | try { |
| | | StringBuffer readBuffer = new StringBuffer(); |
| | | char[] buf = new char[1]; |
| | | FileReader fr = new FileReader(file); |
| | | int bytesRead = fr.read(buf); |
| | | int read = 0; |
| | | while(bytesRead > -1 && read < len) { |
| | | read += bytesRead; |
| | | readBuffer.append(buf); |
| | | bytesRead = fr.read(buf); |
| | | } |
| | | readBuffer.append(buf); |
| | | fr.close(); |
| | | logger.fine("read: " + read + ", readBuffer.len: " + readBuffer.length()); |
| | | return readBuffer.toString(); |
| | | } catch (Exception ex) { |
| | | logger.log(Level.SEVERE, ex.getMessage(), ex); |
| | | return EMPTY_STRING; |
| | | } |
| | | } |
| | | |
| | | |
| | | /** |
| | | * Die Dateiablage wird entweder auf einen absoluten Pfad gesetzt, |
| | | * der im Deployment Descriptor hinterlegt werden kann oder, wenn |
| | | * dort nichts eingetragen ist, auf den hart kodierten Pfad |
| | | * der WebBox. |
| | | * Diese Methode funktioniert nur, wenn entweder ein Ordner uebergeben |
| | | * wird, der keine Unterordner enthaelt wie zum Beispiel der Ordner 'neu' |
| | | * der Bildersammlung oder ein Ordner, dessen Unterordner |
| | | * nach dem Schema Jahr, Monat benannt sind wie bei einem Journal, das |
| | | * die Beitraege wie folgt enthaelt: |
| | | * Journal-Ordner |
| | | * 2018 |
| | | * 12 |
| | | * 11 |
| | | * 10 |
| | | * usw. |
| | | * 2017 |
| | | * 12 |
| | | * 11 |
| | | * 10 |
| | | * usw. |
| | | * |
| | | * @param ctx der ServletContext, in den die Angabe eingetragen wird. Dort |
| | | * ist anschliessend die Angabe unter Initialiser.FILE_BASE abrufbar |
| | | * @param out |
| | | * @param dir |
| | | * @param tiefe |
| | | * @param dateizaehler |
| | | */ |
| | | /* |
| | | public static void ablageErmitteln(ServletContext ctx) { |
| | | Object o = ctx.getInitParameter(DATENABLAGE); |
| | | try { |
| | | if(o instanceof String) { |
| | | String pfad = o.toString(); |
| | | if(pfad.trim().length() > 0) { |
| | | ctx.setAttribute(FILE_BASE, pfad); |
| | | logger.fine("Basis: " + pfad); |
| | | } else { |
| | | ctx.setAttribute(FILE_BASE, WbxUtils.getWbxDataDir(ctx).getAbsolutePath()); |
| | | public void collectFiles(File dir, int tiefe, List beitraege, int maxTiefe, int maxBeitraege) { |
| | | logger.fine(dir.getAbsolutePath()); |
| | | List dirs = new ArrayList(); |
| | | List beitraegeHier = new ArrayList(); |
| | | File[] files = dir.listFiles(); |
| | | for(int i = 0; i < files.length; i++) { |
| | | if(files[i].isDirectory()) { |
| | | if(tiefe < maxTiefe) { |
| | | dirs.add(files[i]); |
| | | } |
| | | } else { |
| | | ctx.setAttribute(FILE_BASE, WbxUtils.getWbxDataDir(ctx).getAbsolutePath()); |
| | | } |
| | | } catch(Exception ex) { |
| | | ctx.setAttribute(FILE_BASE, WbxUtils.getWbxDataDir(ctx).getAbsolutePath()); |
| | | beitraegeHier.add(files[i]); |
| | | } |
| | | } |
| | | } |
| | | */ |
| | | |
| | | if(dirs.size() > 0) { |
| | | // hier zuvor die Verzeichnissse absteigend nach Name sortieren |
| | | Collections.sort(dirs, new Comparator<File>() { |
| | | @Override |
| | | public int compare(File o1, File o2) { |
| | | return o2.getName().compareTo(o1.getName()); |
| | | } |
| | | }); |
| | | |
| | | Iterator i = dirs.iterator(); |
| | | while(i.hasNext() && beitraege.size() < maxBeitraege) { |
| | | collectFiles((File) i.next(), tiefe+1, beitraege, maxTiefe, maxBeitraege); |
| | | } |
| | | } |
| | | if(beitraegeHier.size() > 0) { |
| | | // hier zuvor die Liste der Beitraege dieses Ordners nach lastModified absteigend sortieren |
| | | // dann die neuesten in beitraege aufnehmen, bis die maximale Zahl gesuchter |
| | | // neuer Beitraege erreicht ist. |
| | | |
| | | Collections.sort(beitraegeHier, new Comparator<File>() { |
| | | @Override |
| | | public int compare(File o1, File o2) { |
| | | int ergebnis; |
| | | if(o1.lastModified() > o2.lastModified()) { |
| | | ergebnis = -1; |
| | | } else if(o2.lastModified() > o1.lastModified()) { |
| | | ergebnis = 1; |
| | | } else { |
| | | ergebnis = 0; |
| | | } |
| | | return ergebnis; |
| | | } |
| | | }); |
| | | |
| | | Iterator i = beitraegeHier.iterator(); |
| | | while(i.hasNext() && beitraege.size() < maxBeitraege) { |
| | | File bf = (File) i.next(); |
| | | String nm = bf.getName().toLowerCase(); |
| | | if(nm.endsWith(".htmi") || nm.endsWith(".html") || nm.endsWith(".htm") || |
| | | nm.endsWith(".jpg") || nm.endsWith(".jpeg") || nm.endsWith(".png") || |
| | | nm.endsWith(".txt") || nm.endsWith(".md")) { |
| | | beitraege.add(bf); |
| | | } |
| | | } |
| | | |
| | | } |
| | | } |
| | | |
| | | |
| | | public int getJNDIInt(String paramName, int defaultVal) { |
| | | String jndiStr = getJNDIParameter(paramName, Integer.toString(defaultVal)); |
| | | try { |
| | | return Integer.parseInt(jndiStr); |
| | | } catch(NumberFormatException ex) { |
| | | logger.log(Level.FINE, ex.getMessage()); |
| | | return defaultVal; |
| | | } |
| | | } |
| | | |
| | | public String getJNDIParameter(String pname, String defaultVal) { |
| | | try { |
| | | // unseren environment naming context ermitteln |
| | | Context initCtx = new InitialContext(); |
| | | Context envCtx = (Context) initCtx.lookup(JNDI_CTX_NAME); |
| | | |
| | | // unseren Parameter lesen |
| | | Object o = envCtx.lookup(pname); |
| | | if(o instanceof String) { |
| | | return o.toString(); |
| | | } else { |
| | | return defaultVal; |
| | | } |
| | | } catch (NamingException ex) { |
| | | logger.log(Level.FINE, ex.getMessage()); |
| | | return defaultVal; |
| | | } |
| | | } |
| | | } |