| 1 | package dolda.jsvc.util; |
| 2 | |
| 3 | import dolda.jsvc.*; |
| 4 | import java.util.*; |
| 5 | import java.io.*; |
| 6 | |
| 7 | public class Misc { |
| 8 | public static final java.nio.charset.Charset utf8 = java.nio.charset.Charset.forName("UTF-8"); |
| 9 | public static final java.nio.charset.Charset ascii = java.nio.charset.Charset.forName("US-ASCII"); |
| 10 | private static Map<Integer, String> stext = new HashMap<Integer, String>(); |
| 11 | |
| 12 | static { |
| 13 | stext.put(200, "OK"); |
| 14 | stext.put(300, "Multiple Choices"); |
| 15 | stext.put(301, "Permanently Moved"); |
| 16 | stext.put(302, "Temporarily Moved"); |
| 17 | stext.put(303, "See Other"); |
| 18 | stext.put(304, "Not Modified"); |
| 19 | stext.put(400, "Bad Request"); |
| 20 | stext.put(401, "Authentication Required"); |
| 21 | stext.put(403, "Access Forbidden"); |
| 22 | stext.put(404, "Resource Not Found"); |
| 23 | stext.put(500, "Server Error"); |
| 24 | } |
| 25 | |
| 26 | public static String statustext(int status) { |
| 27 | String text; |
| 28 | if((text = stext.get(status)) != null) |
| 29 | return(text); |
| 30 | return("Server Flimsiness"); |
| 31 | } |
| 32 | |
| 33 | public static String stripslashes(String p, boolean beg, boolean end) { |
| 34 | while(end && (p.length() > 0) && (p.charAt(p.length() - 1) == '/')) |
| 35 | p = p.substring(0, p.length() - 1); |
| 36 | while(beg && (p.length() > 0) && (p.charAt(0) == '/')) |
| 37 | p = p.substring(1); |
| 38 | return(p); |
| 39 | } |
| 40 | |
| 41 | static byte[] readall(InputStream in) throws IOException { |
| 42 | byte[] buf = new byte[4096]; |
| 43 | int off = 0; |
| 44 | while(true) { |
| 45 | if(off == buf.length) { |
| 46 | byte[] n = new byte[buf.length * 2]; |
| 47 | System.arraycopy(buf, 0, n, 0, buf.length); |
| 48 | buf = n; |
| 49 | } |
| 50 | int ret = in.read(buf, off, buf.length - off); |
| 51 | if(ret < 0) { |
| 52 | byte[] n = new byte[off]; |
| 53 | System.arraycopy(buf, 0, n, 0, off); |
| 54 | return(n); |
| 55 | } |
| 56 | off += ret; |
| 57 | } |
| 58 | } |
| 59 | |
| 60 | public static void cpstream(InputStream in, OutputStream out) throws IOException { |
| 61 | byte[] buf = new byte[4096]; |
| 62 | while(true) { |
| 63 | int ret = in.read(buf, 0, buf.length); |
| 64 | if(ret < 0) |
| 65 | return; |
| 66 | out.write(buf, 0, ret); |
| 67 | } |
| 68 | } |
| 69 | |
| 70 | public static Responder stdroot(Responder root) { |
| 71 | Responder ret = root; |
| 72 | ret = new Rehandler(ret); |
| 73 | ret = new ErrorHandler(ret); |
| 74 | return(ret); |
| 75 | } |
| 76 | |
| 77 | public static int hex2int(char digit) { |
| 78 | if((digit >= '0') && (digit <= '9')) |
| 79 | return(digit - '0'); |
| 80 | if((digit >= 'a') && (digit <= 'f')) |
| 81 | return(digit - 'a' + 10); |
| 82 | if((digit >= 'A') && (digit <= 'F')) |
| 83 | return(digit - 'A' + 10); |
| 84 | throw(new NumberFormatException("Invalid hex digit " + digit)); |
| 85 | } |
| 86 | |
| 87 | public static char int2hex(int nibble, boolean upper) { |
| 88 | if((nibble >= 0) && (nibble <= 9)) |
| 89 | return((char)('0' + nibble)); |
| 90 | if((nibble >= 10) && (nibble <= 15)) |
| 91 | return((char)((upper?'A':'a') + nibble - 10)); |
| 92 | throw(new NumberFormatException("Invalid hex nibble " + nibble)); |
| 93 | } |
| 94 | |
| 95 | public static String htmlq(String in) { |
| 96 | StringBuilder buf = new StringBuilder(); |
| 97 | for(int i = 0; i < in.length(); i++) { |
| 98 | char c = in.charAt(i); |
| 99 | if(c == '&') |
| 100 | buf.append("&"); |
| 101 | else if(c == '<') |
| 102 | buf.append("<"); |
| 103 | else if(c == '>') |
| 104 | buf.append(">"); |
| 105 | else |
| 106 | buf.append(c); |
| 107 | } |
| 108 | return(buf.toString()); |
| 109 | } |
| 110 | |
| 111 | public static String urlq(String in) { |
| 112 | byte[] bytes = in.getBytes(utf8); |
| 113 | StringBuilder buf = new StringBuilder(); |
| 114 | for(int i = 0; i < bytes.length; i++) { |
| 115 | byte b = bytes[i]; |
| 116 | if((b < 32) || (b == ' ') || (b == '&') || (b == '?') || (b == '/') || (b == '=') || (b == '#') || (b == '%') || (b == '+') || (b >= 128)) { |
| 117 | buf.append('%'); |
| 118 | buf.append(int2hex((b & 0xf0) >> 4, true)); |
| 119 | buf.append(int2hex(b & 0x0f, true)); |
| 120 | } else { |
| 121 | buf.append((char)b); |
| 122 | } |
| 123 | } |
| 124 | return(buf.toString()); |
| 125 | } |
| 126 | |
| 127 | public static boolean boolval(String val) { |
| 128 | val = val.trim().toLowerCase(); |
| 129 | if(val.equals("1") || val.equals("on") || val.equals("true") || val.equals("yes") || val.equals("\u22a4")) |
| 130 | return(true); |
| 131 | if(val.equals("0") || val.equals("off") || val.equals("false") || val.equals("no") || val.equals("\u22a5")) |
| 132 | return(false); |
| 133 | throw(new IllegalArgumentException("value not recognized as boolean: " + val)); |
| 134 | } |
| 135 | |
| 136 | public static void eatws(PushbackReader in) throws IOException { |
| 137 | int c; |
| 138 | do { |
| 139 | c = in.read(); |
| 140 | if(c < 0) |
| 141 | return; |
| 142 | } while(Character.isWhitespace(c)); |
| 143 | in.unread(c); |
| 144 | } |
| 145 | } |