Better directory layout

Removed useless AUTHORS, COPYING and README files. Move manpage to
contrib (it's not exactly source code).

10 files changed, 3099 insertions, 0 deletions

diff --git a/src/libpiano/config.h b/src/libpiano/config.h
new file mode 100644
index 0000000..febad25
--- /dev/null
+++ b/src/libpiano/config.h
@@ -0,0 +1 @@
+#define PACKAGE "libpiano"
diff --git a/src/libpiano/crypt.c b/src/libpiano/crypt.c
new file mode 100644
index 0000000..8a8ad01
--- /dev/null
+++ b/src/libpiano/crypt.c
@@ -0,0 +1,197 @@
+/*
+Copyright (c) 2008-2010
+	Lars-Dominik Braun <PromyLOPh@lavabit.com>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+*/
+
+#include <string.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <arpa/inet.h>
+
+#include "crypt_key_output.h"
+#include "crypt_key_input.h"
+#include "piano_private.h"
+
+#define byteswap32(x) ((((x) >> 24) & 0x000000ff) | \
+		(((x) >> 8) & 0x0000ff00) | \
+		(((x) << 8) & 0x00ff0000) | \
+		(((x) << 24) & 0xff000000))
+
+#define hostToBigEndian32(x) htonl(x)
+#define bigToHostEndian32(x) ntohl(x)
+
+/*	decrypt hex-encoded, blowfish-crypted string: decode 2 hex-encoded blocks,
+ *	decrypt, byteswap
+ *	@param hex string
+ *	@return decrypted string or NULL
+ */
+#define INITIAL_SHIFT 28
+#define SHIFT_DEC 4
+unsigned char *PianoDecryptString (const unsigned char *strInput) {
+	/* hex-decode => strlen/2 + null-byte */
+	uint32_t *iDecrypt;
+	unsigned char *strDecrypted;
+	unsigned char shift = INITIAL_SHIFT, intsDecoded = 0, j;
+	/* blowfish blocks, 32-bit */
+	uint32_t f, l, r, lrExchange;
+
+	if ((iDecrypt = calloc (strlen ((char *) strInput)/2/sizeof (*iDecrypt)+1,
+			sizeof (*iDecrypt))) == NULL) {
+		return NULL;
+	}
+	strDecrypted = (unsigned char *) iDecrypt;
+
+	while (*strInput != '\0') {
+		/* hex-decode string */
+		if (*strInput >= '0' && *strInput <= '9') {
+			*iDecrypt |= (*strInput & 0x0f) << shift;
+		} else if (*strInput >= 'a' && *strInput <= 'f') {
+			/* 0xa (hex) = 10 (decimal), 'a' & 0x0f == 1 => +9 */
+			*iDecrypt |= ((*strInput+9) & 0x0f) << shift;
+		}
+		if (shift > 0) {
+			shift -= SHIFT_DEC;
+		} else {
+			shift = INITIAL_SHIFT;
+			/* initialize next dword */
+			*(++iDecrypt) = 0;
+			++intsDecoded;
+		}
+
+		/* two 32-bit hex-decoded boxes available => blowfish decrypt */
+		if (intsDecoded == 2) {
+			l = *(iDecrypt-2);
+			r = *(iDecrypt-1);
+
+			for (j = in_key_n + 1; j > 1; --j) {
+				l ^= in_key_p [j];
+				
+				f = in_key_s [0][(l >> 24) & 0xff] +
+						in_key_s [1][(l >> 16) & 0xff];
+				f ^= in_key_s [2][(l >> 8) & 0xff];
+				f += in_key_s [3][l & 0xff];
+				r ^= f;
+				/* exchange l & r */
+				lrExchange = l;
+				l = r;
+				r = lrExchange;
+			}
+			/* exchange l & r */
+			lrExchange = l;
+			l = r;
+			r = lrExchange;
+			r ^= in_key_p [1];
+			l ^= in_key_p [0];
+
+			*(iDecrypt-2) = bigToHostEndian32 (l);
+			*(iDecrypt-1) = bigToHostEndian32 (r);
+
+			intsDecoded = 0;
+		}
+		++strInput;
+	}
+
+	return strDecrypted;
+}
+#undef INITIAL_SHIFT
+#undef SHIFT_DEC
+
+/*	blowfish-encrypt/hex-encode string
+ *	@param encrypt this
+ *	@return encrypted, hex-encoded string
+ */
+unsigned char *PianoEncryptString (const unsigned char *strInput) {
+	const size_t strInputN = strlen ((char *) strInput);
+	/* num of 64-bit blocks, rounded to next block */
+	size_t blockN = strInputN / 8 + 1;
+	uint32_t *blockInput, *blockPtr;
+	/* output string */
+	unsigned char *strHex, *hexPtr;
+	const char *hexmap = "0123456789abcdef";
+
+	if ((blockInput = calloc (blockN*2, sizeof (*blockInput))) == NULL) {
+		return NULL;
+	}
+	blockPtr = blockInput;
+
+	if ((strHex = calloc (blockN*8*2 + 1, sizeof (*strHex))) == NULL) {
+		return NULL;
+	}
+	hexPtr = strHex;
+
+	memcpy (blockInput, strInput, strInputN);
+
+	while (blockN > 0) {
+		/* encryption blocks */
+		uint32_t f, lrExchange;
+		register uint32_t l, r;
+		int i;
+
+		l = hostToBigEndian32 (*blockPtr);
+		r = hostToBigEndian32 (*(blockPtr+1));
+		
+		/* encrypt blocks */
+		for (i = 0; i < out_key_n; i++) {
+			l ^= out_key_p[i];
+
+			f = out_key_s[0][(l >> 24) & 0xff] +
+					out_key_s[1][(l >> 16) & 0xff];
+			f ^= out_key_s[2][(l >> 8) & 0xff];
+			f += out_key_s[3][l & 0xff];
+			r ^= f;
+			/* exchange l & r */
+			lrExchange = l;
+			l = r;
+			r = lrExchange;
+		}
+		/* exchange l & r again */
+		lrExchange = l;
+		l = r;
+		r = lrExchange;
+		r ^= out_key_p [out_key_n];
+		l ^= out_key_p [out_key_n+1];
+
+		/* swap bytes again... */
+		l = byteswap32 (l);
+		r = byteswap32 (r);
+
+		/* hex-encode encrypted blocks */
+		for (i = 0; i < 4; i++) {
+			*hexPtr++ = hexmap[(l & 0xf0) >> 4];
+			*hexPtr++ = hexmap[l & 0x0f];
+			l >>= 8;
+		}
+		for (i = 0; i < 4; i++) {
+			*hexPtr++ = hexmap[(r & 0xf0) >> 4];
+			*hexPtr++ = hexmap[r & 0x0f];
+			r >>= 8;
+		}
+
+		/* two! 32-bit blocks encrypted (l & r) */
+		blockPtr += 2;
+		--blockN;
+	}
+
+	free (blockInput);
+
+	return strHex;
+}
diff --git a/src/libpiano/crypt.h b/src/libpiano/crypt.h
new file mode 100644
index 0000000..e20847c
--- /dev/null
+++ b/src/libpiano/crypt.h
@@ -0,0 +1,30 @@
+/*
+Copyright (c) 2008-2010
+	Lars-Dominik Braun <PromyLOPh@lavabit.com>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+*/
+
+#ifndef _CRYPH_H
+#define _CRYPT_H
+
+char *PianoDecryptString (const char *strInput);
+char *PianoEncryptString (const char *strInput);
+
+#endif /* _CRYPT_H */
diff --git a/src/libpiano/crypt_key_input.h b/src/libpiano/crypt_key_input.h
new file mode 100644
index 0000000..a02e668
--- /dev/null
+++ b/src/libpiano/crypt_key_input.h
@@ -0,0 +1,305 @@
+/*
+Copyright (c) 2008-2010
+	Lars-Dominik Braun <PromyLOPh@lavabit.com>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+*/
+
+#ifndef _CRYPT_KEY_INPUT_H
+#define _CRYPT_KEY_INPUT_H
+
+#include <stdint.h>
+
+/* decryption key for last 48 bytes of audio urls
+ * search for rpc.input in the decompiled pandora actionscript
+ */
+
+const unsigned int in_key_n = 16;
+
+static const uint32_t in_key_p [16 + 2] = {
+		0xCB42446BL, 0x84C9ADD7L, 0x58BB40B6L, 0x67309C28L,
+		0x847AE93FL, 0x634B08FAL, 0x7B41B0E7L, 0x6CA77EA8L,
+		0x680A3F07L, 0x32C26224L, 0x15F68F8FL, 0x84983ECEL,
+		0xE88938C0L, 0xFB2F1633L, 0x172C14BDL, 0xEDD40F8CL,
+		0xFF10C4FBL, 0x22B7AB11L,
+		};
+
+static const uint32_t in_key_s [4][256] = {{
+		0x44B440E2L, 0xE99DBE06L, 0xB9F1A081L, 0x0933FCA1L,
+		0x6B412E99L, 0xB30F4B41L, 0xE32063E6L, 0xF9C0101EL,
+		0x5265F727L, 0x678F8106L, 0xACF39C5CL, 0x28F2868FL,
+		0x5475BE2FL, 0x404DE0BCL, 0x23468728L, 0x184A1488L,
+		0xEA971385L, 0x2F886887L, 0x5E95611CL, 0x239508CCL,
+		0x88355159L, 0x5E7E789FL, 0x9A805DAFL, 0xEC5AB7E0L,
+		0x4A3E4C9FL, 0xA2BE130CL, 0xEE7E0076L, 0x05B9A2F8L,
+		0x6D7AD1C3L, 0x3CAA426EL, 0x2879FC42L, 0x29BB3A22L,
+		0x62AE8B5DL, 0xC561999BL, 0x98D278B1L, 0x0373DDA7L,
+		0x3CED65D5L, 0x4540C197L, 0x8AE57D79L, 0x24F37705L,
+		0x54E2BF0CL, 0xCAF2D2C8L, 0xAB85D018L, 0xBBD96449L,
+		0xB36A13B9L, 0x3C44EB0AL, 0xD820C26BL, 0xF90B784DL,
+		0xAB672603L, 0xD532CF15L, 0x7FFB6686L, 0x7BE27118L,
+		0x793DDA02L, 0xE73107DDL, 0x2632F764L, 0x6FBE7A13L,
+		0x65982C19L, 0xAFF729A3L, 0x69B5BBF7L, 0x2864B0FAL,
+		0x8AED80D3L, 0x0AEB3597L, 0x13689958L, 0x80B40D77L,
+		0x3D9641A8L, 0xF24E7E40L, 0xB9E7A890L, 0xDC02983DL,
+		0xD9050DA9L, 0xFB874500L, 0xB2C64291L, 0xDC12F8F5L,
+		0x128A5CD2L, 0x527F82D3L, 0xCD7C1081L, 0xC5EBDB5FL,
+		0xF968BDD0L, 0xF3E427A3L, 0xBCF76022L, 0xA94CA0BBL,
+		0x28884495L, 0x8214C39CL, 0x6851B166L, 0xEBA17650L,
+		0x95729279L, 0xCE1666C5L, 0x6A57605DL, 0x1BD16C4BL,
+		0x59EF9ECCL, 0xE7C09A6AL, 0x24673702L, 0x0E7CE01EL,
+		0x3636E13AL, 0x40F429BAL, 0x9FBA277EL, 0x9AE49DD0L,
+		0x300E6BABL, 0x201ADB58L, 0xC029E2D9L, 0xE5C74ED7L,
+		0x5C143553L, 0x8E747F2CL, 0x159043C5L, 0x379614D4L,
+		0x9075D06FL, 0x585C1BC2L, 0xE9D22CC1L, 0x0914AEC0L,
+		0xB3B46C73L, 0xC96D2F00L, 0xB14BB0D9L, 0x46A5C5B6L,
+		0x0E3516F4L, 0xEB9AB01EL, 0x5C04E434L, 0x284AAFB4L,
+		0x1BCAF462L, 0xF1A5542AL, 0xBBD03E4AL, 0x4BDC3DA7L,
+		0x6BD0FCC9L, 0x40D21E00L, 0x32E2AEF1L, 0xEF62B668L,
+		0x344EA1BAL, 0x46B1BD02L, 0xCAFE4DC6L, 0x15BE27F0L,
+		0xBFF5A998L, 0x3B0D9B30L, 0x27CA9A40L, 0x84C597FFL,
+		0xD6859FE3L, 0x5D045192L, 0x2A002659L, 0xCC8B3052L,
+		0xFAEFE7C2L, 0xEB9F883EL, 0x69772177L, 0x5FA05797L,
+		0x69DF2134L, 0xDACC373BL, 0x3C035B9EL, 0x977A58DCL,
+		0x84D49E26L, 0x912CFF20L, 0xDFA2D5A6L, 0x0CA8AA62L,
+		0x53CC93D9L, 0x3DD8536AL, 0xF40CF797L, 0xC6EF5FA5L,
+		0xDDBF6EA2L, 0xFF79AD8BL, 0x9CC8F9B6L, 0x9070482EL,
+		0xB6779612L, 0x0A7C86DFL, 0x968E17A3L, 0x28CA9EF1L,
+		0x86DB025BL, 0xF2A80541L, 0x2631C384L, 0x5750F7E3L,
+		0x78191CBFL, 0x4025BF50L, 0x1E032A2BL, 0xC3B4DE8DL,
+		0xAC98A492L, 0xCD90D98FL, 0x92B02F24L, 0xFC462ECFL,
+		0x435695A9L, 0xEDECDDA4L, 0x297B6304L, 0xD973A25AL,
+		0x65A7991DL, 0x8B727303L, 0xC8F89BD7L, 0xCF18B1D7L,
+		0x60A234FFL, 0x13E68F78L, 0xF919D31AL, 0x5249D0A5L,
+		0x117B11AAL, 0xEF6D0783L, 0x2128D583L, 0xA7A24FEAL,
+		0xD9C379ECL, 0x86A4C5ADL, 0xF3CDAA1CL, 0x04A8A51FL,
+		0xE19C74E7L, 0x578622A0L, 0xFD70277DL, 0xEDD3226AL,
+		0x503434D8L, 0x31A8EBB5L, 0x9122632EL, 0x7EF237DAL,
+		0xA59DEF47L, 0xDD87BA93L, 0x7965AB65L, 0x26790F7CL,
+		0xDFDF407BL, 0xAF80CDF0L, 0xA9E55C4FL, 0x54B77138L,
+		0x39B26324L, 0xBE3FD4CDL, 0xDEB06C51L, 0xEEB11B71L,
+		0x90B974D4L, 0xE125702EL, 0x9F6E26EAL, 0x6E4574E1L,
+		0x0ABC33CAL, 0x3F51A4B0L, 0x225E548AL, 0x7D275103L,
+		0x3849134BL, 0xE32DC3B0L, 0x08297936L, 0x788C457BL,
+		0x17F9219EL, 0xE7E6FE7DL, 0xD79DB0B0L, 0xD3F8FEF0L,
+		0x8B0D4DBFL, 0x210883B0L, 0xEACAC580L, 0xAEC1E03EL,
+		0xF2A7678AL, 0x76457B5BL, 0xB518F841L, 0x31E3B067L,
+		0x4E972C3BL, 0x19E5A9BCL, 0xB7438C21L, 0x4C5B5F28L,
+		0xFBB2E5BDL, 0x7734BB35L, 0x705A9013L, 0xD132FAC5L,
+		0x99F8BC98L, 0x8E6B0A9DL, 0xB287744FL, 0x4CBC0613L,
+		0xF094CEB8L, 0xF93137B0L, 0x9242EE26L, 0xC25D9AEBL,
+		0xD517C2F2L, 0xEC2F7F38L, 0xE18380AFL, 0x22C2678AL,
+		}, {
+		0xDE0A562AL, 0x596C7989L, 0x2E99CBDEL, 0x5CC946AFL,
+		0x2DA232BFL, 0x64145592L, 0x7885E518L, 0x85B53628L,
+		0xFB83003EL, 0x5F643977L, 0x193D31BFL, 0x0FDB8849L,
+		0x2BA77CF5L, 0x86D0A1A5L, 0x48803977L, 0xB670B7DDL,
+		0x2924E754L, 0x333CAA9FL, 0x994FF797L, 0x9858B8BEL,
+		0x22BFD9ADL, 0x1A51D7DCL, 0x372CD282L, 0xB38A5CA4L,
+		0xB0B6858DL, 0x4F5CAD72L, 0x3C0DC2D6L, 0xEB090786L,
+		0xC45E17FCL, 0xF0C37D9CL, 0x8315CA42L, 0x336E14D8L,
+		0xE4DA980CL, 0x14EEBD73L, 0xA82E556CL, 0x4ABA084AL,
+		0x9EEC5155L, 0x0CA47152L, 0x03BE2A25L, 0x874F8618L,
+		0xC3C31219L, 0x8554B382L, 0x26FFF693L, 0xD9FE05D6L,
+		0xC69BB513L, 0xC547ED34L, 0x44F66E01L, 0x58B32FD0L,
+		0xF9F7FA8AL, 0xFEF4A493L, 0x2999E20BL, 0x6D23743FL,
+		0x97E2A9DCL, 0x1916908AL, 0x905CBF0DL, 0xE0290BDBL,
+		0xC06B65EFL, 0xE5A45154L, 0x45ABB6ECL, 0xDD329C85L,
+		0xEDF93835L, 0xE5D485D5L, 0x248B2CD5L, 0x60CC627BL,
+		0x2B3224F1L, 0xD7DFA43DL, 0xD5D6DA9AL, 0x7A3F9A29L,
+		0x26605F98L, 0x435FB927L, 0xED9A7CD7L, 0x6020C2EFL,
+		0x43AC15D0L, 0x05FE8353L, 0x74AF1FB8L, 0xADFDC949L,
+		0x3BA09A14L, 0x2BC91C0DL, 0x7D681AD5L, 0xA08CA21CL,
+		0x208C85ADL, 0x0F3DE514L, 0xB4C87BE1L, 0x455233DCL,
+		0xFF35FDF1L, 0xCE93E7E9L, 0x409BA175L, 0x817C4198L,
+		0x749B8E5AL, 0xBA599286L, 0x44E40068L, 0x7FA013C6L,
+		0x9D62E731L, 0x453F48E4L, 0x375CADBEL, 0xC3D661D5L,
+		0xA96A5BF9L, 0x9D2B321AL, 0x0A144AFBL, 0x01590B67L,
+		0x9887312FL, 0x7592FB46L, 0x99AC6DD8L, 0xAA347510L,
+		0x0F3DC8A9L, 0x9BE58B17L, 0x49C674FCL, 0x3D1F5303L,
+		0x138E2052L, 0x1B7CA3EBL, 0xB3C8BE68L, 0xB5C6CB1DL,
+		0xBA62EA1CL, 0x269241DBL, 0xA0EE1AB3L, 0x8EB3E79CL,
+		0x94EA0E9FL, 0xB86FFB54L, 0x56DCBF7FL, 0x3404FD03L,
+		0x8076B757L, 0xB05A9529L, 0x8CC7B224L, 0x4F29804CL,
+		0x6CD2C621L, 0x99424188L, 0xF89E7F5DL, 0xFDF62C52L,
+		0x94D264B1L, 0x9AE26508L, 0xE7C1DF25L, 0xFCE03375L,
+		0x4111F745L, 0x46978B8AL, 0x6D3DEBE0L, 0xA8C9A4A1L,
+		0xBF9ADEE2L, 0x651A9A66L, 0x37EBEFEDL, 0x6BAC6274L,
+		0xED007BFAL, 0x8B00DB5DL, 0x8EB88E4FL, 0x7247626BL,
+		0xC70E0D71L, 0xB06D9EC3L, 0x777CBB67L, 0x9812CC56L,
+		0x12ACE7D0L, 0xEE395981L, 0xFE39A6EFL, 0xC1F592CDL,
+		0xB8C0866DL, 0xC0D8526EL, 0xC6AA7A35L, 0x91113015L,
+		0x36CC0A0DL, 0xD1E8DBA0L, 0x074756C8L, 0xFC272600L,
+		0x6C33093EL, 0x44D5C245L, 0xCA27B4C7L, 0x5A794CFAL,
+		0x459D3DD0L, 0x0F7D4917L, 0x139A3245L, 0x9B2E5E3CL,
+		0x31018582L, 0x759B9D72L, 0x8BDD1D9BL, 0xA16CB7FCL,
+		0x3BBE42B1L, 0x87E40683L, 0x9BE04779L, 0xE9DDE72BL,
+		0x0BE9A89AL, 0x1CB85941L, 0x96134FD9L, 0xFB347B02L,
+		0xD908504AL, 0x71F33096L, 0x705269F0L, 0x3EF468FDL,
+		0xC97983DAL, 0x71277190L, 0x8C2B030FL, 0x8CAE4554L,
+		0x2E643F45L, 0xE16A9CE9L, 0x2C06928EL, 0xC7E0F46AL,
+		0xBDDCEB74L, 0x74985EDBL, 0xBC223E1DL, 0x7F8F5B2AL,
+		0x1EBFAFBCL, 0x3B60AE99L, 0x63083D95L, 0x2905083CL,
+		0xF926F42EL, 0xD5389D31L, 0x6CA90A33L, 0xE1158CAAL,
+		0x352434A4L, 0xB45FD6B1L, 0x17389418L, 0x70D400F6L,
+		0x9127D3E0L, 0xA8EB8D18L, 0x39020FBEL, 0x417AB2E5L,
+		0xA5E92B88L, 0x5F36AEFCL, 0x4057731CL, 0xD1E966F7L,
+		0x0DA44875L, 0x3BE7D0DBL, 0x1C7850CDL, 0xE3B1462EL,
+		0xF9AFEFF6L, 0x210E1CCEL, 0x36FBB8AEL, 0x8584030DL,
+		0x2DD9731AL, 0x9554A44BL, 0x2C6F8100L, 0x983A1BE5L,
+		0x25FAF22DL, 0x338316A7L, 0x0E5A690DL, 0xE702EBEBL,
+		0x52AC420EL, 0xEAC503EFL, 0xD2FE1B98L, 0xE1D55B98L,
+		0xD7DD5C6EL, 0xE756FFF0L, 0xD3FD66EBL, 0x1FD30A11L,
+		0x03E18282L, 0x856F2216L, 0x6917F24CL, 0x12975941L,
+		0xD98387CAL, 0x2B9E153FL, 0xFD7005E0L, 0x05A501F2L,
+		0xA731DB07L, 0xBF268F18L, 0x47E9E9C2L, 0x442148F8L,
+		0x1CCF6FACL, 0x239820BEL, 0x56C0EC64L, 0xC6C59DF1L,
+		},{
+		0x1D985BEEL, 0x336930D2L, 0xCA40E672L, 0x7036E21CL,
+		0x7B43BD3CL, 0xA02DBD7DL, 0x7DFA1A92L, 0xB13508C5L,
+		0x01633D3CL, 0x6CBD1AA5L, 0xCDC61031L, 0x15993E15L,
+		0x669E1B6FL, 0x78B79587L, 0x61D58836L, 0x888D5578L,
+		0x8B99F671L, 0x346906B6L, 0x5EA37C50L, 0xC32C7220L,
+		0xAA6101DEL, 0xAF0CD647L, 0x9840E7DFL, 0xBC4EB801L,
+		0x071126BAL, 0xCD6D71A4L, 0x0CDA5F16L, 0x7838C18CL,
+		0x8F1641CBL, 0x7DF307E3L, 0xB83E78D1L, 0x24E91D07L,
+		0x0F5BB3BCL, 0x172BDFFBL, 0xD24AA952L, 0x41CF15C3L,
+		0x78A696A5L, 0x15CD0C0AL, 0xD24D916DL, 0xA2CF942CL,
+		0xA1EC1AAAL, 0x0B48FCE0L, 0xE1779859L, 0x99F8806AL,
+		0x34333D69L, 0xABBA62D0L, 0xF6E91D76L, 0x0B0D5FDAL,
+		0x5A467847L, 0x74DA0A4DL, 0x0335F980L, 0xE7C55B44L,
+		0x6DD5E917L, 0xC7305285L, 0xCF1D07C6L, 0x8D017ECBL,
+		0xE10A16C1L, 0x0DB9438CL, 0x2FA12B58L, 0x332FA54DL,
+		0x02BD7743L, 0x4B544614L, 0x7907B6AEL, 0x75401EBAL,
+		0xF7382064L, 0xF1325592L, 0x06FB5C05L, 0x9F5FEF1FL,
+		0x3A641771L, 0x807BF700L, 0xC63EDF23L, 0x9FFD35E9L,
+		0x437A410EL, 0x225D18FBL, 0xAD901352L, 0x9D2F8585L,
+		0xEA317135L, 0xCB724C48L, 0xCA568A14L, 0xB153340AL,
+		0x88794F5FL, 0x0C208094L, 0x85BE94E6L, 0x86C5F48AL,
+		0xFC4AC759L, 0xFCCEA783L, 0x491AF14BL, 0x23C9622CL,
+		0x85660BAFL, 0x110300CBL, 0xDE2D8E21L, 0xBAD7D22BL,
+		0x3649D2A8L, 0x64439BF3L, 0xFDD7F2ADL, 0x68129C07L,
+		0x3D03801DL, 0xE2D3B28CL, 0xA94193D2L, 0xEE2C34F0L,
+		0x457DCDF1L, 0x4E21BC94L, 0x8F557C82L, 0x13EE8AB5L,
+		0x0B2A8EC9L, 0x7796592BL, 0x5D9E3346L, 0x3621C85FL,
+		0x1EB7FF52L, 0xCCDF71D8L, 0x538DD6AEL, 0x748274A9L,
+		0x6552081CL, 0xFA61EE48L, 0xFB2A7098L, 0xA02BA33FL,
+		0xB145EA01L, 0xE4C5DEC9L, 0x9E2BF9B1L, 0x6413006DL,
+		0x8F7C7501L, 0x9B51E842L, 0x5ADD5755L, 0x06CAF452L,
+		0x80050406L, 0xCB961521L, 0xEFC54E27L, 0x420EE737L,
+		0xADB18EAEL, 0xF8B0B2FBL, 0xC8CDC88FL, 0x3A026D91L,
+		0x5F99BB22L, 0x391C12F8L, 0xBDF1CEE6L, 0xFEBE0726L,
+		0x6CC79280L, 0x3F7AC7F2L, 0x3B92345CL, 0x5C7BB986L,
+		0xC60C12D7L, 0x4F29C1FAL, 0x04276434L, 0xC1272CD2L,
+		0x5E64BC58L, 0xD473D8F8L, 0x38E9D502L, 0x5C00EE4EL,
+		0x80A1A552L, 0xD49CD6D2L, 0xEA96CBE7L, 0x029E2A86L,
+		0x0D04BA72L, 0xE9B0389DL, 0x4AC913EBL, 0x85927E61L,
+		0x134A0D51L, 0xE63AFF82L, 0x5D7C3FEEL, 0x9373DA83L,
+		0x361324B4L, 0x18569865L, 0x7EAC6BD8L, 0x945CA42CL,
+		0x6A1FD8B8L, 0x6C9D06F7L, 0x01D4072FL, 0xAED3BEA5L,
+		0x9C7BADA7L, 0x740C8802L, 0xAD1D6843L, 0xB84145EBL,
+		0x2804CAEBL, 0x31EB19FBL, 0x402E5195L, 0x05451516L,
+		0xF9770FC4L, 0x547FA291L, 0xF9B980EAL, 0xD6DC914DL,
+		0x8A009CDFL, 0xFDFEDDADL, 0xEBAC5EF5L, 0x575B2AD2L,
+		0x67A8655FL, 0x54590146L, 0x21FA9A1FL, 0xB8CD9B23L,
+		0x1D313DFFL, 0xC5D15FFFL, 0xB6734243L, 0xD1B44EFFL,
+		0xEE6DFF7EL, 0x0A6DB2BCL, 0x2A2AE34EL, 0x596782E6L,
+		0x1DF3E26BL, 0xCE3EA01AL, 0x3CCBBEEFL, 0xD4B8AF1FL,
+		0x555D5325L, 0x78F81205L, 0x528EFD8CL, 0x01F3D29FL,
+		0xAD12326CL, 0x816D4F2EL, 0x6DD2FFE9L, 0x03C4EE90L,
+		0xE9E561B6L, 0x28237064L, 0x82143F5FL, 0xEED4AA29L,
+		0x9E63A1C6L, 0xB25E2AEAL, 0x516B9A8AL, 0xB52B4B71L,
+		0xDDEF7CFFL, 0x6A8FFBDDL, 0x877EC0E5L, 0x72AF36D8L,
+		0xF9EC2EC3L, 0xBD89E9AFL, 0x0A2FC438L, 0xD0E8BEE7L,
+		0xD8979CF1L, 0x0AF071BEL, 0x0BC600C9L, 0x7E1F6318L,
+		0xBFF4BF36L, 0x01DF67EEL, 0x6B35580BL, 0x2A3487ABL,
+		0x1694328EL, 0x68358F88L, 0x23C60980L, 0xBE312A5BL,
+		0x444E80C9L, 0x7ECE3A97L, 0xC3CE446CL, 0x5269084CL,
+		0xC611CCE5L, 0xA156FBADL, 0xA2331EC8L, 0x1065EA4BL,
+		0xA59F0F71L, 0xE46F2C17L, 0x2E2247DCL, 0xB5EBAA6FL,
+		0xD8DE0349L, 0x0EA6F1B3L, 0x465FB0A0L, 0x0CE5A14CL,
+		0x6A10A909L, 0xBCB590D3L, 0x8FA66C30L, 0xD1FCB44DL,
+		},{
+		0x475CA7E8L, 0x4C51BBC1L, 0xA90763E1L, 0x7BDF2294L,
+		0x04D96F34L, 0x11318CB9L, 0x54A65710L, 0x041597BEL,
+		0xC49B15C2L, 0x09B9521AL, 0x5589972BL, 0x10167358L,
+		0xA3927ED5L, 0x405F7752L, 0x2CBCB573L, 0x37106B2EL,
+		0x4CF216A4L, 0x5AB1D0F2L, 0x3ED8CA8EL, 0xA612D957L,
+		0xADC5D570L, 0xD45C1E98L, 0x53C28628L, 0xBCF19A34L,
+		0x6CA25F5CL, 0x5C5E4FA2L, 0x7C155954L, 0xE99CE5F9L,
+		0xD9A180F9L, 0x4F3CF09BL, 0x9DDF75A6L, 0x6D240EE0L,
+		0x67973B52L, 0xE13895B4L, 0x36ADE486L, 0x22EC32D2L,
+		0x075D6EAEL, 0x29C31053L, 0xAC06EE74L, 0x1A9D3316L,
+		0x8A2D0CC3L, 0x57DC77D3L, 0x40B2D07FL, 0xDFA2051AL,
+		0xFDC90DFCL, 0x342E9AC5L, 0xB04EB091L, 0x9E1C2D1FL,
+		0x075A20A3L, 0xE45FA195L, 0x3F958FE3L, 0x18C98F15L,
+		0xC70AE917L, 0x78040F9BL, 0xE4322DEBL, 0x0903841FL,
+		0xAE71257EL, 0xA82C7909L, 0xA398504BL, 0x56A9A694L,
+		0x7DA7F73BL, 0x12942475L, 0xAAC0C982L, 0xDFD0E53EL,
+		0x27CE728BL, 0xE94327CBL, 0xF2EBA423L, 0x72B1476EL,
+		0x317756F6L, 0x056654E3L, 0x074C0192L, 0x11B6FF21L,
+		0x939FD4C5L, 0xE6E45B55L, 0x66211539L, 0x753C6C46L,
+		0x536DB219L, 0x939C3AF0L, 0x9783EE73L, 0xC8978DE8L,
+		0xBA0329F6L, 0x3B892181L, 0x4CDA3336L, 0xFD15F1EFL,
+		0xAE2B2E61L, 0x2637C83BL, 0x9D9930BFL, 0x72ADFC41L,
+		0x48DBFFFFL, 0x448E80F4L, 0xBA1CC3E1L, 0x61CCB37DL,
+		0xD3CFEC32L, 0x0E6804A9L, 0x1ECE11A1L, 0x15809783L,
+		0x9F7FD813L, 0x64A39648L, 0x9E67CA64L, 0x19B3E4B8L,
+		0x8740466AL, 0xEBB79667L, 0x1CE86B36L, 0xC7BCE505L,
+		0x2445215DL, 0x54ADCC77L, 0xAB187AC2L, 0x97B82A38L,
+		0xA66B2D42L, 0xA3D07412L, 0x4A9CB0F4L, 0x2C51F98CL,
+		0xCA7FC25BL, 0x73AEB532L, 0xF45769BBL, 0x8068AEF4L,
+		0x48A14C08L, 0x011E7A0BL, 0xD4FEF360L, 0xB572B6ECL,
+		0x947692FFL, 0x8EB6BE12L, 0xDEB04AF3L, 0xA9CD494EL,
+		0x7C522A9DL, 0x4CC24357L, 0x616E3132L, 0x68073F0DL,
+		0x20F7237AL, 0x7EA98584L, 0x3B6BF43CL, 0x29F11571L,
+		0x759B5F60L, 0x7D5BCACCL, 0x8C86BC43L, 0xB378EF1BL,
+		0xD00EAF88L, 0xBD85FE1AL, 0xB4A42C5DL, 0x2075442DL,
+		0x184038CCL, 0xC3D9F6F8L, 0x1D72BAC3L, 0xDD8C41C0L,
+		0xD85F7634L, 0xB48A6902L, 0x8BB3F160L, 0x178CCA70L,
+		0x4EE8D16EL, 0x5121D6FDL, 0xF2F09DA9L, 0x84B55B38L,
+		0x8D081959L, 0x13F21DADL, 0x19BCDA5CL, 0x909A9FDFL,
+		0x11AD6731L, 0x2CE9D09FL, 0xAA8E9543L, 0x9F8D5555L,
+		0x679FE7C1L, 0x251591CBL, 0xC4187630L, 0x57324F07L,
+		0xB2C35182L, 0xBD16E4F0L, 0xC3B3DE3FL, 0xEA6CBA23L,
+		0x00C810DBL, 0xBB040931L, 0xE0BA08A6L, 0xDC4AC24BL,
+		0xEE1428BBL, 0x964A6F9FL, 0x2096F5DCL, 0x2170A50CL,
+		0x3FBCA4BDL, 0x7C321FAAL, 0x88679D5DL, 0x0F5FFFDCL,
+		0x88AA1865L, 0xFD51E01AL, 0xA35EF105L, 0x8B99A039L,
+		0xD5C22176L, 0xB1A73D55L, 0xA0080F3DL, 0xDBC61A70L,
+		0x3FB106E3L, 0xBAEA8E73L, 0x7E34C1B3L, 0x40F3DC19L,
+		0xFD9AEEE4L, 0xA3E6A013L, 0xEECF6A5EL, 0xA83012D4L,
+		0xDEDF0B25L, 0x7CB1D8C2L, 0x02C4180CL, 0xE38905D8L,
+		0x2D631C38L, 0x36612C66L, 0x9845588CL, 0x9510F7FDL,
+		0xBCD5C8B1L, 0x55D50272L, 0x9B35118EL, 0xFB7C4E3FL,
+		0x2E3BD98FL, 0x56DD4BD7L, 0x4C3B6F27L, 0x0264DDB7L,
+		0xBD4A811CL, 0x2A9A4F84L, 0x2292258AL, 0xE7799B02L,
+		0xF5B529B2L, 0x894B5D58L, 0xD3392CAAL, 0x515CCAC1L,
+		0xB6857B04L, 0xB2CBE5DFL, 0x28B230C2L, 0xE3CE03F5L,
+		0x0581D4DFL, 0x3CC0D279L, 0xD0C1EDECL, 0x160B926FL,
+		0x32F58056L, 0x9D574911L, 0xED9FB621L, 0xA2D920F7L,
+		0xB4BE7EACL, 0x6947D33FL, 0xBB438F92L, 0xDD11B405L,
+		0xDEFF0F70L, 0x03B3E6A8L, 0x4BD0A277L, 0xE28FA297L,
+		0x7098CAF4L, 0xB74B88E5L, 0xC3330744L, 0x77E7975AL,
+		0xB35AC1B1L, 0x3BFEA68CL, 0x84BF6163L, 0x101D5CC0L,
+		0xF4558349L, 0x0CF6A28BL, 0xD76AF6B8L, 0xD6A3140DL,
+		0x3F37D065L, 0x0E55EA90L, 0xC1A759D1L, 0x70265EABL,
+		}};
+
+#endif /* _CRYPT_KEY_INPUT_H */
diff --git a/src/libpiano/crypt_key_output.h b/src/libpiano/crypt_key_output.h
new file mode 100644
index 0000000..b8823d5
--- /dev/null
+++ b/src/libpiano/crypt_key_output.h
@@ -0,0 +1,303 @@
+/*
+Copyright (c) 2008-2010
+	Lars-Dominik Braun <PromyLOPh@lavabit.com>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+*/
+
+/* encryption key for xmlrpc */
+
+#ifndef _CRYPT_KEY_OUTPUT_H
+#define _CRYPT_KEY_OUTPUT_H
+
+#include <stdint.h>
+
+const unsigned int out_key_n = 16;
+
+static const uint32_t out_key_p[16 + 2] = {
+		0x77B1CD94L, 0xDCB48217L, 0x69404CDCL, 0x2C02F724L,
+		0x22961551L, 0xB497993BL, 0x5B5EEE8CL, 0xA209AE23L,
+		0xE26B1B43L, 0x90F1CE4CL, 0xB86F975AL, 0xF3CB8371L,
+		0xDED8E87CL, 0xB2882D4FL, 0x74984776L, 0x361650B2L,
+		0x666FB475L, 0x85A10677L,
+		};
+
+static const uint32_t out_key_s[4][256] = {{
+		0xBA448614L, 0xC35FBBD7L, 0x31B6EC14L, 0xA85F989BL,
+		0x89A83B0EL, 0xAB11C2E7L, 0xFC376FBBL, 0x55B2E7B6L,
+		0xA330F22EL, 0xA8229AE0L, 0x9D025EF0L, 0x5E917398L,
+		0x3BE382F9L, 0x8F103C90L, 0x463C36A2L, 0xD223C350L,
+		0x29DDD3F8L, 0x35075D14L, 0x0F963F64L, 0x74D02046L,
+		0x28DCFBF1L, 0xEE12889EL, 0x46C74707L, 0xA1C5A67FL,
+		0x8FFE2E9DL, 0xACE75324L, 0x49DA447CL, 0x3061FBB3L,
+		0x14579E12L, 0xF1E8ED6EL, 0x76A679C1L, 0xD8EF0FEFL,
+		0xA5EA7835L, 0xD63EDB8DL, 0x484F139DL, 0x3D3AD62AL,
+		0x8A6331F1L, 0xEF43FE4EL, 0x3745B29FL, 0xEAF8A9ADL,
+		0xF9FFF4AEL, 0x1E5BB3C5L, 0xFF988E0AL, 0x8C9E1147L,
+		0x3EC6CED1L, 0x4CE0F56DL, 0x206E4341L, 0x79C0520FL,
+		0x4FA3C2FDL, 0x1A8189E5L, 0xFA0BC58EL, 0xA0F29358L,
+		0x42B379BBL, 0xEC55CB3DL, 0xBD7F1551L, 0x31E17BEAL,
+		0xACC91098L, 0x7C36A984L, 0x8611A88BL, 0x255CE7CFL,
+		0xC80DB988L, 0x743CEEBCL, 0x7AA258B6L, 0xE82424C9L,
+		0xD1EAC3DBL, 0x2D562386L, 0x5250E40BL, 0x9B5285F5L,
+		0x895D0124L, 0xAB8037D6L, 0xFD67BA8FL, 0x351B05D7L,
+		0x0B124E65L, 0x20CF592BL, 0x91BE281FL, 0x879AD90AL,
+		0x6609FEB6L, 0xD8A2305FL, 0x861194A2L, 0xD51DB0E3L,
+		0xF735D810L, 0xAEFA5174L, 0x56A9577FL, 0x24F3408BL,
+		0x10627B95L, 0xBEE74251L, 0x7ECD2211L, 0x95A8B55EL,
+		0xBDE1028EL, 0xDEF339E2L, 0xD0768D34L, 0x6BD5A569L,
+		0xC2240D0FL, 0xE171393DL, 0x14A24028L, 0x96760DFAL,
+		0x4C78040FL, 0xBD6F76D0L, 0x5EE4BA83L, 0xB20C926FL,
+		0xC0F0DCD8L, 0xEF5D4105L, 0x383D3B65L, 0x51E42A4AL,
+		0x1505EECEL, 0x86B2BFFDL, 0x56EE7DFCL, 0x8734574BL,
+		0xCAA9E52DL, 0xE0F66450L, 0x76B7037BL, 0x84AE5148L,
+		0xFB7EC4EBL, 0x6A3DEB3DL, 0x06C7EA69L, 0x165F2DFFL,
+		0x7B9DB92AL, 0xB9B24C67L, 0x43AB448AL, 0xA64F30D7L,
+		0x998BE34DL, 0x628E747AL, 0x294162B9L, 0xAB8014C7L,
+		0x22E1516FL, 0x74C3E589L, 0x003D14D0L, 0x8D724CE1L,
+		0x2053C615L, 0x9AD67B30L, 0x29C3D0E8L, 0xBC3269B5L,
+		0x7CD7D118L, 0x892FD6BEL, 0x30170170L, 0xF582162AL,
+		0x35C8F272L, 0x19844866L, 0x85259078L, 0x7C744927L,
+		0x1DA54115L, 0x5505DEC7L, 0x7A84A6D8L, 0xC7D8C609L,
+		0x2E198969L, 0xF6020F4BL, 0x837DCD75L, 0x2DF45B36L,
+		0x83C0DA9FL, 0x4DE5E15CL, 0x8F70E4A4L, 0x364CF096L,
+		0xECBDAE6FL, 0x548DC21BL, 0xAFD70D50L, 0x60378522L,
+		0x7A405AB5L, 0x60A18616L, 0xFA0905BCL, 0x953A1CCBL,
+		0xBE5141D0L, 0xA9403F7BL, 0x5D1E37B6L, 0x500DA5D5L,
+		0xBCDB815CL, 0xE78B89E3L, 0x63A3546FL, 0x5AAD9FD4L,
+		0x5C6E8B71L, 0xD7971A6FL, 0x40856F48L, 0x91F6CA81L,
+		0x956C447AL, 0xF966868FL, 0xF191BB51L, 0x7C015EAFL,
+		0x58A8785BL, 0x43710423L, 0x2C246B80L, 0x0072DCD6L,
+		0x40569C99L, 0xCB544BB9L, 0x2CC2B579L, 0xA3AF010DL,
+		0x5638B6A5L, 0x8918B2D4L, 0x18928D95L, 0x557BAE61L,
+		0xA0D578F2L, 0x3CF4B1F1L, 0x1D592634L, 0xED9B40B5L,
+		0x0BE033EBL, 0xDD437BAEL, 0x6188202DL, 0x9F0A444DL,
+		0x4DCD2CC0L, 0xC28D6DC5L, 0x9ABDD269L, 0xB0843012L,
+		0x00951EE5L, 0x4715466DL, 0x3CC39115L, 0xB270DD7BL,
+		0x6510D189L, 0x2BBC6F8FL, 0x331B8E06L, 0x54F13F9EL,
+		0xA8223944L, 0xC7B1B375L, 0xFD79FA77L, 0xB7930324L,
+		0x6197A094L, 0x46CB50D9L, 0xC49A908FL, 0xAC297BAFL,
+		0x84D14B51L, 0x0A50682AL, 0x8AFB5E73L, 0x1C1172C6L,
+		0x358A5364L, 0x88415003L, 0x4D5666F8L, 0xA287110CL,
+		0xD61B0A4AL, 0x3CC0961BL, 0x44BF5FC3L, 0xD69E0492L,
+		0xCFD94EE6L, 0x019813D5L, 0xB7D38A5FL, 0x69C15DC1L,
+		0x0D896A60L, 0x7ACB18CEL, 0x5CE6D6E7L, 0x743A4295L,
+		0xD7E5A8B7L, 0x457E7DD5L, 0x4A07442BL, 0x2ADA51DEL,
+		0xF3202F3BL, 0xD4574157L, 0x81A94A0AL, 0xF26BDDFDL,
+		0x775935B3L, 0xB9BC3B76L, 0x3FD81E05L, 0xB95EE989L,
+		0x9A0F555DL, 0xFD7E49C8L, 0x3A1D12C5L, 0x7955E2EFL,
+		0x7F4A75A1L, 0x16DD1739L, 0x3B3EF7E0L, 0x8795C597L,
+		}, {
+		0x0640766DL, 0xCD661DAFL, 0x2BDECFBDL, 0xDAA77B87L,
+		0x5A7E41B5L, 0x9A3CD4EAL, 0xC6CA8D2FL, 0x65F989EBL,
+		0x736C3573L, 0xFA69679CL, 0xB317B71BL, 0x41A7E6FEL,
+		0x72D83E2AL, 0xE22CAB56L, 0x08920117L, 0x7030D96EL,
+		0x35CDE674L, 0x7405A058L, 0x97D69990L, 0xE95C5EF3L,
+		0xDC992FB4L, 0xD33C9F8BL, 0xDAF1AD7AL, 0x03503095L,
+		0x00967754L, 0x8CF12CD7L, 0x950FD719L, 0x1ADB3F8CL,
+		0xDB4F120AL, 0x712C33D5L, 0x8626D609L, 0x1F2CA165L,
+		0x3B8FB27FL, 0xBBA56B76L, 0xD0D7517CL, 0xE1B34706L,
+		0x2D89956EL, 0xFFDFF151L, 0xD992E142L, 0x9C662E5AL,
+		0xD3D210A4L, 0xD914DD04L, 0x712980F3L, 0xF5AE77E4L,
+		0x1E186A6DL, 0xC3CED643L, 0x5A8841B0L, 0xD113DB05L,
+		0x1C93C9FDL, 0xB0B64822L, 0xDCDA2B02L, 0x09F3B19AL,
+		0xF59692CEL, 0x01117325L, 0xCA61CC6BL, 0xF3E6788AL,
+		0xAE70FCF0L, 0x2BA3BDD7L, 0x359B04A2L, 0xB422ECFFL,
+		0x4CF00372L, 0x6374AD34L, 0xEB0C631BL, 0x56587BA8L,
+		0xC32CD2DEL, 0x5294BDC9L, 0x65B79362L, 0x5E38BFADL,
+		0x2A8FBE8CL, 0x8E738683L, 0xC673FFD0L, 0x4B04FB4DL,
+		0xCC76EE0FL, 0xF45FD305L, 0xB77848D3L, 0x0D3CB64EL,
+		0x48772949L, 0xB5E5B2EEL, 0x354BFBEAL, 0x22BDE81FL,
+		0x2181F5BEL, 0x40F5F099L, 0x99C49F11L, 0xEF46CF3BL,
+		0x4F9B3DD0L, 0x2E34B17EL, 0xF35F478EL, 0xB0ADC5E2L,
+		0x06A4CE4EL, 0xF0395C8AL, 0x3F344031L, 0x0B4A502CL,
+		0x85DD868CL, 0x0E52D760L, 0x84124817L, 0x08197C7AL,
+		0x5520AD9AL, 0xEA8268FCL, 0xA11B655BL, 0xE3204A0EL,
+		0x9183F85FL, 0x9A294A29L, 0xE6350EC4L, 0x09202931L,
+		0x28BA52EFL, 0x21B2DB1CL, 0xA20FF528L, 0x42918DAEL,
+		0xB8E49971L, 0x9E203A81L, 0x2A07F36CL, 0xA2F84D75L,
+		0x824D4513L, 0x1D8AC558L, 0x7E65E471L, 0x06002169L,
+		0xBEBC8C82L, 0x9B7B8B6BL, 0x3FF164C2L, 0x5672E9C3L,
+		0xBFC72AA3L, 0xD3C9D9E3L, 0xCB64E2DDL, 0xE196A84DL,
+		0xCF336932L, 0xA5F3CA20L, 0xA8D3D903L, 0x81CB0B86L,
+		0xFB4BF27DL, 0xFCA4C125L, 0x21F1D5B6L, 0xCF6BA988L,
+		0x1D408BB7L, 0x629F088FL, 0xF4746130L, 0x1B5C2212L,
+		0x47AD1F87L, 0x1E1E9B5CL, 0xCD01B844L, 0x5D3307E1L,
+		0xA68FE8F7L, 0x3B13346BL, 0x602308E7L, 0x751416ABL,
+		0x38030F2BL, 0x1ABC8EF6L, 0x8929E128L, 0x97040FCAL,
+		0x13E59C8DL, 0xA121B4D9L, 0xDB599765L, 0x95EDA62DL,
+		0xDAEA1CC5L, 0x2CAF5AC9L, 0x5490F679L, 0xFB410588L,
+		0x023C15F3L, 0x5FCD4247L, 0x99455DD9L, 0x82CFC454L,
+		0x2EBECB55L, 0xE6ED032FL, 0x876F578DL, 0xA4BF3657L,
+		0x8DAD590EL, 0xF6ECC607L, 0xF8B5CD9CL, 0xEC124316L,
+		0x4159E6DAL, 0xD7EFA744L, 0x2A20A160L, 0x982F527FL,
+		0x60C84A77L, 0xFF60A850L, 0xFD5C6EAFL, 0xFD2D5797L,
+		0x954F58C6L, 0xA48A9852L, 0x55B5A9D2L, 0xF3F29933L,
+		0xB3580EC7L, 0xF7021CB8L, 0x25238BDBL, 0x7FE667E2L,
+		0x47353A71L, 0xD9F9D37DL, 0x79374988L, 0x939566EFL,
+		0xC1279574L, 0x835BD0DCL, 0xCB52DE4FL, 0x028364BDL,
+		0xBE33E780L, 0xB09647D8L, 0x73FA4EABL, 0x859922EAL,
+		0xC7520CCAL, 0x72A331D2L, 0x3F5CFE19L, 0x008F9772L,
+		0x5CBFD2B8L, 0xF1937A57L, 0xACC6DBA9L, 0xEFF7AB89L,
+		0x72A55667L, 0x628DE4B7L, 0xA0CE9591L, 0x3BFD1D5FL,
+		0xCA8D7811L, 0x55BE1BD2L, 0x8B4E3C73L, 0xE0ADA4A4L,
+		0xB0A9AB99L, 0xFE319FE4L, 0x1C2BE3A3L, 0x037B2517L,
+		0xC084B5D6L, 0x2BE02274L, 0xFF05F558L, 0x8482CABDL,
+		0x8B3D719AL, 0x1CB98561L, 0x80DA6AEEL, 0x443B8093L,
+		0x01D8FAA4L, 0xD7B783D6L, 0x33F0B71EL, 0x73CA82D8L,
+		0x4D9DFDA4L, 0xA91F57FEL, 0x17AB093CL, 0x689F8D37L,
+		0x40EE7199L, 0xFA702024L, 0xD1DD8C1FL, 0x5F9BD69BL,
+		0x64D28176L, 0xF9DAA31BL, 0xBB186496L, 0x078787B1L,
+		0x3783C428L, 0xBDA68050L, 0x7E709830L, 0x1BBDB10EL,
+		0x6349027FL, 0xF8306215L, 0xD8855420L, 0x0BE3D1A8L,
+		0xD3D9C187L, 0x5329049FL, 0xE3395F69L, 0x65AC7995L,
+		0x664848D1L, 0x68C64650L, 0x0F9C1F75L, 0xA4808E20L,
+		}, {
+		0x5CFD009FL, 0x4C09F290L, 0xA786F99CL, 0x76A5A243L,
+		0x2DC97400L, 0x424D9AAEL, 0x6644DE0CL, 0x30DAFAE5L,
+		0x5ED77CC3L, 0xD1003D99L, 0xCD3C1222L, 0x1CA766C1L,
+		0x5B976615L, 0x014E4796L, 0x0A715936L, 0x405D0D57L,
+		0x0AB115F1L, 0x8A963877L, 0xBE96D670L, 0xE2310AACL,
+		0x148D00F2L, 0x9787F4BFL, 0xE5F62A68L, 0xFD025DA4L,
+		0x194B6DF7L, 0x960D3E7BL, 0xB330C5C1L, 0x2932C25BL,
+		0x13738072L, 0x9D62ABA1L, 0x0ECD92CAL, 0xF75ACC9BL,
+		0x229E433AL, 0xD0A247BFL, 0xE4B0D9BAL, 0xFA69F70EL,
+		0x9B7D254FL, 0xD2849281L, 0x4132F364L, 0xF2E4B87FL,
+		0x4189B43CL, 0x7E807CBCL, 0x10498724L, 0xF48C5F29L,
+		0x03312ACEL, 0x239307BDL, 0x3541CEBCL, 0x1B1AE36DL,
+		0xF993F1B1L, 0x3B6BE060L, 0x9782191AL, 0xACC1CC1BL,
+		0xA8B4798EL, 0x486399CDL, 0x59A7ECB9L, 0x46490B98L,
+		0xB80EA77EL, 0x1071EE10L, 0x8FE10517L, 0xE29D8F08L,
+		0x9BDA44C2L, 0x629C5056L, 0xE40E10E3L, 0x0048CBB1L,
+		0xF8E698E7L, 0x09369CB7L, 0x898942DCL, 0x0F49BFE0L,
+		0x3600B868L, 0x44EE4C88L, 0x6625BBFBL, 0x7C956C83L,
+		0x5C42B182L, 0x080AF33BL, 0x1503CC24L, 0xAE64DA10L,
+		0x9F3537D3L, 0x99618740L, 0xE7D50FFDL, 0x6CBB4AFFL,
+		0x56062EE1L, 0x70C1AD52L, 0xAC54BF35L, 0x5A7D4D07L,
+		0x65DC58DEL, 0x7B362255L, 0x6133AFC8L, 0x4C2ACE68L,
+		0x858FA998L, 0x5C336C93L, 0x78193EA7L, 0x5613E9BDL,
+		0x8B1F58ACL, 0x563D5D47L, 0x6163AF27L, 0x71183690L,
+		0x5944DDC3L, 0x817D18BEL, 0x41260F8BL, 0x259ED297L,
+		0xA3CCEE2EL, 0xDBB13DDDL, 0x1009CD47L, 0xD12B82C3L,
+		0x9A6FF89DL, 0x4248C9D4L, 0x31484739L, 0x7C3DEEC3L,
+		0x2E2CBAC1L, 0x9597DDA3L, 0xF64414B0L, 0x066FC96FL,
+		0x31F4AAA0L, 0xB2DBBCFFL, 0x50B991ADL, 0x95AC5272L,
+		0x0CAA50C4L, 0x0864DE61L, 0xF38A70D4L, 0x08CE8D6CL,
+		0x53941C89L, 0xC54DBEBEL, 0xE4DBC2B0L, 0x2B3E9E66L,
+		0x6F3E0BA4L, 0x164DC014L, 0xCC6CEC5FL, 0x08238664L,
+		0x30988E18L, 0xFDE4501AL, 0x030B3099L, 0xE6F49802L,
+		0x94A08714L, 0xC3A784E5L, 0xECDA930DL, 0x0B40E2F9L,
+		0x0EE564F8L, 0xF5993B88L, 0x5B8DB5DBL, 0xF77CCA85L,
+		0x9C4FCDA9L, 0x2114F372L, 0x2AA12CCEL, 0x2B07C3F1L,
+		0xD660E47AL, 0xD0B26A65L, 0x56F8945CL, 0x4C07FCA5L,
+		0x5EF2197FL, 0x073CBFFCL, 0xF83E8935L, 0x04DB4798L,
+		0x79DE4FB4L, 0x207E0BB1L, 0xD0D47C14L, 0x9DADB205L,
+		0x5EBD3EA0L, 0xCA83B290L, 0xC8BF53A1L, 0x4DCBF491L,
+		0xB590CD79L, 0x9C98C12EL, 0x8C877D6EL, 0xD0F17FD2L,
+		0xB3FFF22FL, 0xE8D38B07L, 0x15641B63L, 0x6FE5D245L,
+		0x04045C48L, 0xEF16069BL, 0xB58781CEL, 0x7D07653DL,
+		0xCFB9BD0CL, 0x21CA5DE7L, 0xB35606D9L, 0xA7854DE0L,
+		0xC134207CL, 0xFE978430L, 0x0C830455L, 0xCB784991L,
+		0xC95A3072L, 0xC0AC5E17L, 0x7B999149L, 0xA289D877L,
+		0xB4E3254EL, 0x743F72B1L, 0x98CF8054L, 0x7E4E1C3FL,
+		0x0A64C32CL, 0xF04CEB0FL, 0x0488ABF6L, 0x004554B3L,
+		0x359E3441L, 0x192ABA6FL, 0x28DC322EL, 0xDDE52491L,
+		0xF1D8C2A7L, 0xEAE3E74AL, 0xA10B3376L, 0x7A879F55L,
+		0xB5F13C45L, 0x5194862CL, 0x6F65DC08L, 0x753F6AFEL,
+		0xF08EA616L, 0x26D382C3L, 0x3315E1E5L, 0x538106B9L,
+		0xEC0B9F78L, 0xF298C82DL, 0x0125FD86L, 0x07465A0DL,
+		0x23953151L, 0x70569F93L, 0x75D261A5L, 0xC5AD33E5L,
+		0x49464CDFL, 0xB4E0D04DL, 0xA0866011L, 0x383CC817L,
+		0x545FBC56L, 0xA49BED33L, 0x4E4B516AL, 0x38CBF5D4L,
+		0x6DBA987CL, 0x1DFE208FL, 0x65466F04L, 0x6D3DCD1DL,
+		0xEB4D60C6L, 0xE3FB6AECL, 0xFA16DBDBL, 0xCD1CDF2BL,
+		0xF07F845DL, 0x4DA0ECD1L, 0x0EEB40B0L, 0x1CB7A2F0L,
+		0xCD8E54F3L, 0x37376D53L, 0xF7AAC8D3L, 0x8BA724AAL,
+		0xEF5C922DL, 0x6F1BE181L, 0xD1808DF8L, 0x44764B58L,
+		0x0CD247C4L, 0x0C137F60L, 0xB77F6981L, 0x4AC13745L,
+		0xBA311B48L, 0x42A5DE75L, 0x4522E7E0L, 0x84E90F54L,
+		0xCC0AD21CL, 0x00F8D9A7L, 0x9CA2CED9L, 0x4F8E0583L,
+		}, {
+		0x6AFF5CA7L, 0x0D8AB1F0L, 0x75E3AD44L, 0x6B5A1A52L,
+		0xE9658216L, 0x71B42FBBL, 0xF57D3F6CL, 0x0A79678EL,
+		0x534F306FL, 0xB9C725ABL, 0x7157BF11L, 0x2A52F490L,
+		0x4D01079CL, 0x6D18FC2BL, 0x94EC0BDBL, 0xA736324EL,
+		0x7540D554L, 0x6B9DFB4DL, 0xFA158CA1L, 0xECE8E1ABL,
+		0xAFAF64B2L, 0x61450E7BL, 0x4CEBA4FAL, 0xB2AFAAA2L,
+		0xFE669447L, 0x4E63D10BL, 0xFBD8AEC8L, 0x5F6B6B1AL,
+		0x70A8F15BL, 0xA91D68B6L, 0x59034211L, 0x98273D40L,
+		0xB9A9C9ADL, 0xCE4DDCD7L, 0xC3159554L, 0xFD5D1C2DL,
+		0x9ABF93B5L, 0x70A8C01FL, 0xA70FCF1AL, 0x641301DDL,
+		0x4EDB9E0BL, 0xC548E7B1L, 0x4884B172L, 0x714610B7L,
+		0x4086DCCFL, 0xC8D88CC6L, 0x77594608L, 0xBCABFDE1L,
+		0x77962F00L, 0x56F6372CL, 0xB9507A98L, 0x0EF9473EL,
+		0xDBA8C6E2L, 0x5BE1AA28L, 0xCEA5C805L, 0x750F1D15L,
+		0x1F986C17L, 0x3693A790L, 0x71B0C4CCL, 0xC0776116L,
+		0xD660B7BCL, 0x8D0ABAB1L, 0x7F1FDFB7L, 0x4900FDE1L,
+		0x2208372BL, 0xB8263157L, 0xB53378F5L, 0x10DF5849L,
+		0xC3C8CD69L, 0x5E842514L, 0x8085986AL, 0xC305CE78L,
+		0x6C5D3C16L, 0xC11A49B6L, 0x391DBE69L, 0x3BACD18DL,
+		0x87253FDEL, 0x56D409DEL, 0x68629118L, 0x1C1E9C6FL,
+		0x7F737B29L, 0x96838CC1L, 0xC300D7B2L, 0x2A23D185L,
+		0x52271100L, 0xCB4B3F01L, 0xB78A9B86L, 0xB9BEDEF5L,
+		0x5D8075FFL, 0x5C325E39L, 0x48A76A2BL, 0x96A61231L,
+		0x933ADA05L, 0xF9971C9CL, 0xFF2C75FCL, 0x27FA5DAAL,
+		0xAEF8AD6EL, 0xF2DEA20BL, 0x11F247FBL, 0xC383DA2AL,
+		0xF85A5ED1L, 0xC35FBC79L, 0xBDCEF0ADL, 0xEEBBCFB3L,
+		0xCA711BF4L, 0xB7DABFB3L, 0xE03177D0L, 0xBB727F1FL,
+		0x142CC33DL, 0xDB6C384EL, 0xAC6D38B4L, 0xF55B4325L,
+		0xF020F44FL, 0x5630D9C1L, 0xED39B172L, 0xACB5AFF7L,
+		0x8D98DC58L, 0xB6DF90A1L, 0xEC98CD13L, 0xE0C6A237L,
+		0xAC64BDF0L, 0x3560D439L, 0x7B0DDB44L, 0x1D3682C3L,
+		0x664EBF1AL, 0xD41A4A0CL, 0x0D5DFE5BL, 0x4E133D8CL,
+		0xB129ECD6L, 0xD9DA3194L, 0xE45DADBAL, 0x6B27E47FL,
+		0xBA9600DDL, 0x8E1936D2L, 0x1F8B1E51L, 0x3860AE03L,
+		0xEE540893L, 0x5F31C76BL, 0xE9302FA1L, 0x452CB6B9L,
+		0x5D9CA533L, 0xA19F4B2FL, 0x6C0046A4L, 0x657713DDL,
+		0x1B5D5A04L, 0xC3D594E6L, 0xBB80FA30L, 0x9BF9E647L,
+		0x716F2F97L, 0xF2B8ADA6L, 0x7F242755L, 0x40FB6614L,
+		0x4F85BCF9L, 0x18799EB2L, 0x76B4124AL, 0xFCAEC005L,
+		0x38231D8AL, 0xD449CE69L, 0xC6877AD2L, 0x16B37A06L,
+		0x7DAF096BL, 0xCE11C2B4L, 0x750754B5L, 0xCAC33C86L,
+		0x10E20D73L, 0xE4997D0FL, 0x6B06DE8DL, 0x1D70D15FL,
+		0xBF060E4FL, 0x18BC4C59L, 0xD1C8585EL, 0x1AEC12B4L,
+		0x9AB3F241L, 0x46CFC4CDL, 0xCF16D587L, 0xF1722424L,
+		0x0ECA4D9CL, 0xCC6131F3L, 0x0E990CC3L, 0x9771D4BFL,
+		0x4C624E9FL, 0x5CA79CBCL, 0x02368C90L, 0x25826D54L,
+		0x32D1B4C9L, 0xDA9A049BL, 0x616CC784L, 0x47B562F3L,
+		0xB5553B6EL, 0xF205F397L, 0x6FA01B63L, 0xC857201FL,
+		0xC5C7C8A1L, 0xA27C47E2L, 0xDB185877L, 0x67236F63L,
+		0xBF369D88L, 0x4E7054BDL, 0xD6544BEAL, 0x36EF3BC3L,
+		0x60F4B74DL, 0x430EA61EL, 0xC3E9C76DL, 0x499A0517L,
+		0x91D45BCDL, 0xDCAEADFAL, 0x355FBC9DL, 0x8CA1770EL,
+		0x820BE4F9L, 0x00AE9FD2L, 0x9E63CE49L, 0x46FE33E8L,
+		0xA07048A3L, 0x225FBD27L, 0xAF0FD02CL, 0x8F9D7C95L,
+		0xD4F0E647L, 0x6DFB3949L, 0xE289B0B0L, 0xF9CC7F56L,
+		0x7F168AD2L, 0xED8433E0L, 0xEBB189B5L, 0x765AD69CL,
+		0x7730DCF0L, 0xD54C3A0DL, 0xACF6BD6BL, 0x1E19DF12L,
+		0xBD984D49L, 0xC4FC38B8L, 0x0D36C9FFL, 0xCC3AD912L,
+		0x0A6E4ED6L, 0x27B27847L, 0x604F6917L, 0xD4C1ADADL,
+		0xCB19F4BEL, 0x5127D2FDL, 0x38FFA03AL, 0xB983BC5FL,
+		0x5CAF3A6EL, 0x84E94F45L, 0xFC3FA473L, 0xC9299B07L,
+		0x322F38AFL, 0x2A228E93L, 0x76D63922L, 0x1326A518L,
+		0xFEC3F151L, 0xB821D755L, 0x8D1C67ACL, 0x5DA96628L,
+		0x04F7335FL, 0xC6F5CD2EL, 0x7D211328L, 0xE19180D3L,
+		}};
+
+#endif /* _CRYPT_KEY_OUTPUT_H */
diff --git a/src/libpiano/piano.c b/src/libpiano/piano.c
new file mode 100644
index 0000000..f6343b4
--- /dev/null
+++ b/src/libpiano/piano.c
@@ -0,0 +1,1114 @@
+/*
+Copyright (c) 2008-2010
+	Lars-Dominik Braun <PromyLOPh@lavabit.com>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+*/
+
+#define _BSD_SOURCE /* required by strdup() */
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <time.h>
+#include <assert.h>
+#include <stdint.h>
+
+/* needed for urlencode */
+#include <waitress.h>
+
+#include "piano_private.h"
+#include "piano.h"
+#include "xml.h"
+#include "crypt.h"
+#include "config.h"
+
+#define PIANO_PROTOCOL_VERSION "29"
+#define PIANO_RPC_HOST "www.pandora.com"
+#define PIANO_RPC_PORT "80"
+#define PIANO_RPC_PATH "/radio/xmlrpc/v" PIANO_PROTOCOL_VERSION "?"
+#define PIANO_SEND_BUFFER_SIZE 10000
+
+/*	initialize piano handle
+ *	@param piano handle
+ *	@return nothing
+ */
+void PianoInit (PianoHandle_t *ph) {
+	memset (ph, 0, sizeof (*ph));
+
+	/* route-id seems to be random. we're using time anyway... */
+	snprintf (ph->routeId, sizeof (ph->routeId), "%07luP",
+			(unsigned long) time (NULL) % 10000000);
+}
+
+/*	free complete search result
+ *	@public yes
+ *	@param search result
+ */
+void PianoDestroySearchResult (PianoSearchResult_t *searchResult) {
+	PianoArtist_t *curArtist, *lastArtist;
+	PianoSong_t *curSong, *lastSong;
+
+	curArtist = searchResult->artists;
+	while (curArtist != NULL) {
+		free (curArtist->name);
+		free (curArtist->musicId);
+		lastArtist = curArtist;
+		curArtist = curArtist->next;
+		free (lastArtist);
+	}
+
+	curSong = searchResult->songs;
+	while (curSong != NULL) {
+		free (curSong->title);
+		free (curSong->artist);
+		free (curSong->musicId);
+		lastSong = curSong;
+		curSong = curSong->next;
+		free (lastSong);
+	}
+}
+
+/*	free single station
+ *	@param station
+ */
+void PianoDestroyStation (PianoStation_t *station) {
+	free (station->name);
+	free (station->id);
+	memset (station, 0, sizeof (station));
+}
+
+/*	free complete station list
+ *	@param piano handle
+ */
+void PianoDestroyStations (PianoStation_t *stations) {
+	PianoStation_t *curStation, *lastStation;
+
+	curStation = stations;
+	while (curStation != NULL) {
+		lastStation = curStation;
+		curStation = curStation->next;
+		PianoDestroyStation (lastStation);
+		free (lastStation);
+	}
+}
+
+/* FIXME: copy & waste */
+/*	free _all_ elements of playlist
+ *	@param piano handle
+ *	@return nothing
+ */
+void PianoDestroyPlaylist (PianoSong_t *playlist) {
+	PianoSong_t *curSong, *lastSong;
+
+	curSong = playlist;
+	while (curSong != NULL) {
+		free (curSong->audioUrl);
+		free (curSong->coverArt);
+		free (curSong->artist);
+		free (curSong->musicId);
+		free (curSong->title);
+		free (curSong->userSeed);
+		free (curSong->stationId);
+		free (curSong->album);
+		free (curSong->artistMusicId);
+		lastSong = curSong;
+		curSong = curSong->next;
+		free (lastSong);
+	}
+}
+
+/*	destroy genre linked list
+ */
+void PianoDestroyGenres (PianoGenre_t *genres) {
+	PianoGenre_t *curGenre, *lastGenre;
+
+	curGenre = genres;
+	while (curGenre != NULL) {
+		free (curGenre->name);
+		free (curGenre->musicId);
+		lastGenre = curGenre;
+		curGenre = curGenre->next;
+		free (lastGenre);
+	}
+}
+
+/*	destroy user information
+ */
+void PianoDestroyUserInfo (PianoUserInfo_t *user) {
+	free (user->webAuthToken);
+	free (user->authToken);
+	free (user->listenerId);
+}
+
+/*	frees the whole piano handle structure
+ *	@param piano handle
+ *	@return nothing
+ */
+void PianoDestroy (PianoHandle_t *ph) {
+	PianoDestroyUserInfo (&ph->user);
+	PianoDestroyStations (ph->stations);
+	/* destroy genre stations */
+	PianoGenreCategory_t *curGenreCat = ph->genreStations, *lastGenreCat;
+	while (curGenreCat != NULL) {
+		PianoDestroyGenres (curGenreCat->genres);
+		free (curGenreCat->name);
+		lastGenreCat = curGenreCat;
+		curGenreCat = curGenreCat->next;
+		free (lastGenreCat);
+	}
+	memset (ph, 0, sizeof (*ph));
+}
+
+/*	destroy request, free post data. req->responseData is *not* freed here, as
+ *	it might be allocated by something else than malloc!
+ *	@param piano request
+ */
+void PianoDestroyRequest (PianoRequest_t *req) {
+	free (req->postData);
+	memset (req, 0, sizeof (*req));
+}
+
+/*	convert audio format id to string that can be used in xml requests
+ *	@param format id
+ *	@return constant string
+ */
+static const char *PianoAudioFormatToString (PianoAudioFormat_t format) {
+	switch (format) {
+		case PIANO_AF_AACPLUS:
+			return "aacplus";
+			break;
+
+		case PIANO_AF_MP3:
+			return "mp3";
+			break;
+
+		case PIANO_AF_MP3_HI:
+			return "mp3-hifi";
+			break;
+
+		default:
+			return NULL;
+			break;
+	}
+}
+
+/*	prepare piano request (initializes request type, urlpath and postData)
+ *	@param piano handle
+ *	@param request structure
+ *	@param request type
+ */
+PianoReturn_t PianoRequest (PianoHandle_t *ph, PianoRequest_t *req,
+		PianoRequestType_t type) {
+	char xmlSendBuf[PIANO_SEND_BUFFER_SIZE];
+	/* corrected timestamp */
+	time_t timestamp = time (NULL) - ph->timeOffset;
+
+	assert (ph != NULL);
+	assert (req != NULL);
+
+	req->type = type;
+
+	switch (req->type) {
+		case PIANO_REQUEST_LOGIN: {
+			/* authenticate user */
+			PianoRequestDataLogin_t *logindata = req->data;
+
+			assert (logindata != NULL);
+
+			switch (logindata->step) {
+				case 0:
+					snprintf (xmlSendBuf, sizeof (xmlSendBuf), 
+							"<?xml version=\"1.0\"?><methodCall>"
+							"<methodName>misc.sync</methodName>"
+							"<params></params></methodCall>");
+					snprintf (req->urlPath, sizeof (req->urlPath), PIANO_RPC_PATH
+							"rid=%s&method=sync", ph->routeId);
+					break;
+
+				case 1:
+					snprintf (xmlSendBuf, sizeof (xmlSendBuf), 
+							"<?xml version=\"1.0\"?><methodCall>"
+							"<methodName>listener.authenticateListener</methodName>"
+							"<params><param><value><int>%lu</int></value></param>"
+							"<param><value><string>%s</string></value></param>"
+							"<param><value><string>%s</string></value></param>"
+							"</params></methodCall>", (unsigned long) timestamp,
+							logindata->user, logindata->password);
+					snprintf (req->urlPath, sizeof (req->urlPath), PIANO_RPC_PATH
+							"rid=%s&method=authenticateListener", ph->routeId);
+					break;
+			}
+			break;
+		}
+
+		case PIANO_REQUEST_GET_STATIONS:
+			/* get stations, user must be authenticated */
+			assert (ph->user.listenerId != NULL);
+
+			snprintf (xmlSendBuf, sizeof (xmlSendBuf), "<?xml version=\"1.0\"?>"
+					"<methodCall><methodName>station.getStations</methodName>"
+					"<params><param><value><int>%lu</int></value></param>"
+					"<param><value><string>%s</string></value></param>"
+					"</params></methodCall>", (unsigned long) timestamp,
+					ph->user.authToken);
+			snprintf (req->urlPath, sizeof (req->urlPath), PIANO_RPC_PATH
+					"rid=%s&lid=%s&method=getStations", ph->routeId,
+					ph->user.listenerId);
+			break;
+
+		case PIANO_REQUEST_GET_PLAYLIST: {
+			/* get playlist for specified station */
+			PianoRequestDataGetPlaylist_t *reqData = req->data;
+
+			assert (reqData != NULL);
+			assert (reqData->station != NULL);
+			assert (reqData->station->id != NULL);
+			assert (reqData->format != PIANO_AF_UNKNOWN);
+
+			snprintf (xmlSendBuf, sizeof (xmlSendBuf), "<?xml version=\"1.0\"?>"
+					"<methodCall><methodName>playlist.getFragment</methodName>"
+					"<params><param><value><int>%lu</int></value></param>"
+					/* auth token */
+					"<param><value><string>%s</string></value></param>"
+					/* station id */
+					"<param><value><string>%s</string></value></param>"
+					/* total listening time */
+					"<param><value><string>0</string></value></param>"
+					/* time since last session */
+					"<param><value><string></string></value></param>"
+					/* tracking code */
+					"<param><value><string></string></value></param>"
+					/* audio format */
+					"<param><value><string>%s</string></value></param>"
+					/* delta listening time */
+					"<param><value><string>0</string></value></param>"
+					/* listening timestamp */
+					"<param><value><string>0</string></value></param>"
+					"</params></methodCall>", (unsigned long) timestamp,
+					ph->user.authToken, reqData->station->id,
+					PianoAudioFormatToString (reqData->format));
+			snprintf (req->urlPath, sizeof (req->urlPath), PIANO_RPC_PATH
+					"rid=%s&lid=%s&method=getFragment&arg1=%s&arg2=0"
+					"&arg3=&arg4=&arg5=%s&arg6=0&arg7=0", ph->routeId,
+					ph->user.listenerId, reqData->station->id,
+					PianoAudioFormatToString (reqData->format));
+			break;
+		}
+
+		case PIANO_REQUEST_ADD_FEEDBACK: {
+			/* low-level, don't use directly (see _RATE_SONG and _MOVE_SONG) */
+			PianoRequestDataAddFeedback_t *reqData = req->data;
+			
+			assert (reqData != NULL);
+			assert (reqData->stationId != NULL);
+			assert (reqData->musicId != NULL);
+			assert (reqData->rating != PIANO_RATE_NONE);
+
+			snprintf (xmlSendBuf, sizeof (xmlSendBuf), "<?xml version=\"1.0\"?>"
+					"<methodCall><methodName>station.addFeedback</methodName>"
+					"<params><param><value><int>%lu</int></value></param>"
+					/* auth token */
+					"<param><value><string>%s</string></value></param>"
+					/* station id */
+					"<param><value><string>%s</string></value></param>"
+					/* music id */
+					"<param><value><string>%s</string></value></param>"
+					/* user seed */
+					"<param><value><string>%s</string></value></param>"
+					/* test strategy */
+					"<param><value>%u</value></param>"
+					/* positive */
+					"<param><value><boolean>%i</boolean></value></param>"
+					/* "is-creator-quickmix" */
+					"<param><value><boolean>0</boolean></value></param>"
+					/* song type */
+					"<param><value><int>%u</int></value></param>"
+					"</params></methodCall>", (unsigned long) timestamp,
+					ph->user.authToken, reqData->stationId, reqData->musicId,
+					(reqData->userSeed == NULL) ? "" : reqData->userSeed,
+					reqData->testStrategy,
+					(reqData->rating == PIANO_RATE_LOVE) ? 1 : 0,
+					reqData->songType);
+			snprintf (req->urlPath, sizeof (req->urlPath), PIANO_RPC_PATH
+					"rid=%s&lid=%s&method=addFeedback&arg1=%s&arg2=%s"
+					"&arg3=%s&arg4=%u&arg5=%s&arg6=false&arg7=%u",
+					ph->routeId, ph->user.listenerId, reqData->stationId,
+					reqData->musicId,
+					(reqData->userSeed == NULL) ? "" : reqData->userSeed,
+					reqData->testStrategy,
+					(reqData->rating == PIANO_RATE_LOVE) ? "true" : "false",
+					reqData->songType);
+			break;
+		}
+
+		case PIANO_REQUEST_RENAME_STATION: {
+			/* rename stations */
+			PianoRequestDataRenameStation_t *reqData = req->data;
+			char *urlencodedNewName, *xmlencodedNewName;
+
+			assert (reqData != NULL);
+			assert (reqData->station != NULL);
+			assert (reqData->newName != NULL);
+
+			if ((xmlencodedNewName = PianoXmlEncodeString (reqData->newName)) == NULL) {
+				return PIANO_RET_OUT_OF_MEMORY;
+			}
+			urlencodedNewName = WaitressUrlEncode (reqData->newName);
+
+			snprintf (xmlSendBuf, sizeof (xmlSendBuf), "<?xml version=\"1.0\"?>"
+					"<methodCall><methodName>station.setStationName</methodName>"
+					"<params><param><value><int>%lu</int></value></param>"
+					/* auth token */
+					"<param><value><string>%s</string></value></param>"
+					/* station id */
+					"<param><value><string>%s</string></value></param>"
+					/* new name */
+					"<param><value><string>%s</string></value></param>"
+					"</params></methodCall>", (unsigned long) timestamp,
+					ph->user.authToken, reqData->station->id,
+					xmlencodedNewName);
+			snprintf (req->urlPath, sizeof (req->urlPath), PIANO_RPC_PATH
+					"rid=%s&lid=%s&method=setStationName&arg1=%s&arg2=%s",
+					ph->routeId, ph->user.listenerId, reqData->station->id,
+					urlencodedNewName);
+
+			free (urlencodedNewName);
+			free (xmlencodedNewName);
+			break;
+		}
+
+		case PIANO_REQUEST_DELETE_STATION: {
+			/* delete station */
+			PianoStation_t *station = req->data;
+
+			assert (station != NULL);
+
+			snprintf (xmlSendBuf, sizeof (xmlSendBuf), "<?xml version=\"1.0\"?>"
+					"<methodCall><methodName>station.removeStation</methodName>"
+					"<params><param><value><int>%lu</int></value></param>"
+					/* auth token */
+					"<param><value><string>%s</string></value></param>"
+					/* station id */
+					"<param><value><string>%s</string></value></param>"
+					"</params></methodCall>", (unsigned long) timestamp,
+					ph->user.authToken, station->id);
+			snprintf (req->urlPath, sizeof (req->urlPath), PIANO_RPC_PATH
+					"rid=%s&lid=%s&method=removeStation&arg1=%s", ph->routeId,
+					ph->user.listenerId, station->id);
+			break;
+		}
+
+		case PIANO_REQUEST_SEARCH: {
+			/* search for artist/song title */
+			PianoRequestDataSearch_t *reqData = req->data;
+			char *xmlencodedSearchStr, *urlencodedSearchStr;
+
+			assert (reqData != NULL);
+			assert (reqData->searchStr != NULL);
+
+			if ((xmlencodedSearchStr = PianoXmlEncodeString (reqData->searchStr)) == NULL) {
+				return PIANO_RET_OUT_OF_MEMORY;
+			}
+			urlencodedSearchStr = WaitressUrlEncode (reqData->searchStr);
+
+			snprintf (xmlSendBuf, sizeof (xmlSendBuf), "<?xml version=\"1.0\"?>"
+					"<methodCall><methodName>music.search</methodName>"
+					"<params><param><value><int>%lu</int></value></param>"
+					/* auth token */
+					"<param><value><string>%s</string></value></param>"
+					/* search string */
+					"<param><value><string>%s</string></value></param>"
+					"</params></methodCall>", (unsigned long) timestamp,
+					ph->user.authToken, xmlencodedSearchStr);
+			snprintf (req->urlPath, sizeof (req->urlPath), PIANO_RPC_PATH
+					"rid=%s&lid=%s&method=search&arg1=%s", ph->routeId,
+					ph->user.listenerId, urlencodedSearchStr);
+
+			free (urlencodedSearchStr);
+			free (xmlencodedSearchStr);
+			break;
+		}
+
+		case PIANO_REQUEST_CREATE_STATION: {
+			/* create new station from specified musicid (type=mi, get one by
+			 * performing a search) or shared station id (type=sh) */
+			PianoRequestDataCreateStation_t *reqData = req->data;
+
+			assert (reqData != NULL);
+			assert (reqData->id != NULL);
+			assert (reqData->type != NULL);
+
+			snprintf (xmlSendBuf, sizeof (xmlSendBuf), "<?xml version=\"1.0\"?>"
+					"<methodCall><methodName>station.createStation</methodName>"
+					"<params><param><value><int>%lu</int></value></param>"
+					"<param><value><string>%s</string></value></param>"
+					"<param><value><string>%s%s</string></value></param>"
+					"</params></methodCall>", (unsigned long) timestamp,
+					ph->user.authToken, reqData->type, reqData->id);
+
+			snprintf (req->urlPath, sizeof (req->urlPath), PIANO_RPC_PATH
+					"rid=%s&lid=%s&method=createStation&arg1=%s%s", ph->routeId,
+					ph->user.listenerId, reqData->type, reqData->id);
+			break;
+		}
+
+		case PIANO_REQUEST_ADD_SEED: {
+			/* add another seed to specified station */
+			PianoRequestDataAddSeed_t *reqData = req->data;
+
+			assert (reqData != NULL);
+			assert (reqData->station != NULL);
+			assert (reqData->musicId != NULL);
+
+			snprintf (xmlSendBuf, sizeof (xmlSendBuf), "<?xml version=\"1.0\"?>"
+					"<methodCall><methodName>station.addSeed</methodName><params>"
+					"<param><value><int>%lu</int></value></param>"
+					"<param><value><string>%s</string></value></param>"
+					"<param><value><string>%s</string></value></param>"
+					"<param><value><string>%s</string></value></param>"
+					"</params></methodCall>", (unsigned long) timestamp,
+					ph->user.authToken, reqData->station->id, reqData->musicId);
+			snprintf (req->urlPath, sizeof (req->urlPath), PIANO_RPC_PATH
+					"rid=%s&lid=%s&method=addSeed&arg1=%s&arg2=%s", ph->routeId,
+					ph->user.listenerId, reqData->station->id, reqData->musicId);
+			break;
+		}
+
+		case PIANO_REQUEST_ADD_TIRED_SONG: {
+			/* ban song for a month from all stations */
+			PianoSong_t *song = req->data;
+
+			assert (song != NULL);
+
+			snprintf (xmlSendBuf, sizeof (xmlSendBuf), "<?xml version=\"1.0\"?>"
+					"<methodCall><methodName>listener.addTiredSong</methodName><params>"
+					"<param><value><int>%lu</int></value></param>"
+					"<param><value><string>%s</string></value></param>"
+					/* key */
+					"<param><value><string>%s</string></value></param>"
+					/* user seed */
+					"<param><value><string>%s</string></value></param>"
+					/* station id */
+					"<param><value><string>%s</string></value></param>"
+					"</params></methodCall>", (unsigned long) timestamp,
+					ph->user.authToken,
+					(song->musicId == NULL) ? "" : song->musicId,
+					(song->userSeed == NULL) ? "" : song->userSeed,
+					song->stationId);
+			snprintf (req->urlPath, sizeof (req->urlPath), PIANO_RPC_PATH
+					"rid=%s&lid=%s&method=addTiredSong&arg1=%s&arg2=%s&arg3=%s",
+					ph->routeId, ph->user.listenerId,
+					(song->musicId == NULL) ? "" : song->musicId,
+					(song->userSeed == NULL) ? "" : song->userSeed,
+					song->stationId);
+			break;
+		}
+
+		case PIANO_REQUEST_SET_QUICKMIX: {
+			/* select stations included in quickmix (see useQuickMix flag of
+			 * PianoStation_t) */
+			char valueBuf[1000], urlArgBuf[1000];
+			PianoStation_t *curStation = ph->stations;
+
+			memset (urlArgBuf, 0, sizeof (urlArgBuf));
+			snprintf (xmlSendBuf, sizeof (xmlSendBuf), "<?xml version=\"1.0\"?>"
+					"<methodCall><methodName>station.setQuickMix</methodName><params>"
+					"<param><value><int>%lu</int></value></param>"
+					"<param><value><string>%s</string></value></param>"
+					/* quick mix type */
+					"<param><value><string>RANDOM</string></value></param>"
+					"<param><value><array><data>", (unsigned long) timestamp,
+					ph->user.authToken);
+			while (curStation != NULL) {
+				/* quick mix can't contain itself */
+				if (!curStation->useQuickMix || curStation->isQuickMix) {
+					curStation = curStation->next;
+					continue;
+				}
+				/* append to xml doc */
+				snprintf (valueBuf, sizeof (valueBuf),
+						"<value><string>%s</string></value>", curStation->id);
+				strncat (xmlSendBuf, valueBuf, sizeof (xmlSendBuf) -
+						strlen (xmlSendBuf) - 1);
+				/* append to url arg */
+				strncat (urlArgBuf, curStation->id, sizeof (urlArgBuf) -
+						strlen (urlArgBuf) - 1);
+				curStation = curStation->next;
+				/* if not last item: append "," */
+				if (curStation != NULL) {
+					strncat (urlArgBuf, "%2C", sizeof (urlArgBuf) -
+							strlen (urlArgBuf) - 1);
+				}
+			}
+			strncat (xmlSendBuf,
+					"</data></array></value></param>"
+					/* content type */
+					"<param><value><string>CUSTOM</string></value></param>"
+					/* genre */
+					"<param><value><string></string></value></param>"
+					"</params></methodCall>",
+					sizeof (xmlSendBuf) - strlen (xmlSendBuf) - 1);
+
+			snprintf (req->urlPath, sizeof (req->urlPath), PIANO_RPC_PATH
+					"rid=%s&lid=%s&method=setQuickMix&arg1=RANDOM&arg2=%s&arg3=CUSTOM&arg4=",
+					ph->routeId, ph->user.listenerId, urlArgBuf);
+			break;
+		}
+
+		case PIANO_REQUEST_GET_GENRE_STATIONS:
+			/* receive list of pandora's genre stations */
+			xmlSendBuf[0] = '\0';
+			snprintf (req->urlPath, sizeof (req->urlPath), "/xml/genre?r=%lu",
+					(unsigned long) timestamp);
+			break;
+
+		case PIANO_REQUEST_TRANSFORM_STATION: {
+			/* transform shared station into private */
+			PianoStation_t *station = req->data;
+
+			assert (station != NULL);
+
+			snprintf (xmlSendBuf, sizeof (xmlSendBuf), "<?xml version=\"1.0\"?>"
+					"<methodCall><methodName>station.transformShared</methodName>"
+					"<params><param><value><int>%lu</int></value></param>"
+					/* auth token */
+					"<param><value><string>%s</string></value></param>"
+					/* station id */
+					"<param><value><string>%s</string></value></param>"
+					"</params></methodCall>", (unsigned long) timestamp,
+					ph->user.authToken, station->id);
+			snprintf (req->urlPath, sizeof (req->urlPath), PIANO_RPC_PATH
+					"rid=%s&lid=%s&method=transformShared&arg1=%s", ph->routeId,
+					ph->user.listenerId, station->id);
+			break;
+		}
+
+		case PIANO_REQUEST_EXPLAIN: {
+			/* explain why particular song was played */
+			PianoRequestDataExplain_t *reqData = req->data;
+
+			assert (reqData != NULL);
+			assert (reqData->song != NULL);
+
+			snprintf (xmlSendBuf, sizeof (xmlSendBuf), "<?xml version=\"1.0\"?>"
+					"<methodCall><methodName>playlist.narrative</methodName>"
+					"<params><param><value><int>%lu</int></value></param>"
+					/* auth token */
+					"<param><value><string>%s</string></value></param>"
+					/* station id */
+					"<param><value><string>%s</string></value></param>"
+					/* music id */
+					"<param><value><string>%s</string></value></param>"
+					"</params></methodCall>", (unsigned long) timestamp,
+					ph->user.authToken, reqData->song->stationId,
+					reqData->song->musicId);
+			snprintf (req->urlPath, sizeof (req->urlPath), PIANO_RPC_PATH
+					"rid=%s&lid=%s&method=narrative&arg1=%s&arg2=%s",
+					ph->routeId, ph->user.listenerId, reqData->song->stationId,
+					reqData->song->musicId);
+			break;
+		}
+
+		case PIANO_REQUEST_GET_SEED_SUGGESTIONS: {
+			/* find similar artists */
+			PianoRequestDataGetSeedSuggestions_t *reqData = req->data;
+
+			assert (reqData != NULL);
+			assert (reqData->musicId != NULL);
+			assert (reqData->max != 0);
+
+			snprintf (xmlSendBuf, sizeof (xmlSendBuf), "<?xml version=\"1.0\"?>"
+					"<methodCall><methodName>music.getSeedSuggestions</methodName>"
+					"<params><param><value><int>%lu</int></value></param>"
+					/* auth token */
+					"<param><value><string>%s</string></value></param>"
+					/* seed music id */
+					"<param><value><string>%s</string></value></param>"
+					/* max */
+					"<param><value><int>%u</int></value></param>"
+					"</params></methodCall>", (unsigned long) timestamp,
+					ph->user.authToken, reqData->musicId, reqData->max);
+			snprintf (req->urlPath, sizeof (req->urlPath), PIANO_RPC_PATH
+					"rid=%s&lid=%s&method=getSeedSuggestions&arg1=%s&arg2=%u",
+					ph->routeId, ph->user.listenerId, reqData->musicId, reqData->max);
+			break;
+		}
+
+		case PIANO_REQUEST_BOOKMARK_SONG: {
+			/* bookmark song */
+			PianoSong_t *song = req->data;
+
+			assert (song != NULL);
+
+			snprintf (xmlSendBuf, sizeof (xmlSendBuf), "<?xml version=\"1.0\"?>"
+					"<methodCall><methodName>station.createBookmark</methodName>"
+					"<params><param><value><int>%lu</int></value></param>"
+					/* auth token */
+					"<param><value><string>%s</string></value></param>"
+					/* station id */
+					"<param><value><string>%s</string></value></param>"
+					/* music id */
+					"<param><value><string>%s</string></value></param>"
+					"</params></methodCall>", (unsigned long) timestamp,
+					ph->user.authToken, song->stationId, song->musicId);
+			snprintf (req->urlPath, sizeof (req->urlPath), PIANO_RPC_PATH
+					"rid=%s&lid=%s&method=createBookmark&arg1=%s&arg2=%s",
+					ph->routeId, ph->user.listenerId, song->stationId,
+					song->musicId);
+			break;
+		}
+
+		case PIANO_REQUEST_BOOKMARK_ARTIST: {
+			/* bookmark artist */
+			PianoSong_t *song = req->data;
+
+			assert (song != NULL);
+
+			snprintf (xmlSendBuf, sizeof (xmlSendBuf), "<?xml version=\"1.0\"?>"
+					"<methodCall><methodName>station.createArtistBookmark</methodName>"
+					"<params><param><value><int>%lu</int></value></param>"
+					/* auth token */
+					"<param><value><string>%s</string></value></param>"
+					/* music id */
+					"<param><value><string>%s</string></value></param>"
+					"</params></methodCall>", (unsigned long) timestamp,
+					ph->user.authToken, song->artistMusicId);
+			snprintf (req->urlPath, sizeof (req->urlPath), PIANO_RPC_PATH
+					"rid=%s&lid=%s&method=createArtistBookmark&arg1=%s",
+					ph->routeId, ph->user.listenerId, song->artistMusicId);
+			break;
+		}
+
+		/* "high-level" wrapper */
+		case PIANO_REQUEST_RATE_SONG: {
+			/* love/ban song */
+			PianoRequestDataRateSong_t *reqData = req->data;
+			PianoReturn_t pRet;
+
+			assert (reqData != NULL);
+			assert (reqData->song != NULL);
+			assert (reqData->rating != PIANO_RATE_NONE);
+
+			PianoRequestDataAddFeedback_t transformedReqData;
+			transformedReqData.stationId = reqData->song->stationId;
+			transformedReqData.musicId = reqData->song->musicId;
+			transformedReqData.userSeed = reqData->song->userSeed;
+			transformedReqData.rating = reqData->rating;
+			transformedReqData.testStrategy = reqData->song->testStrategy;
+			transformedReqData.songType = reqData->song->songType;
+			req->data = &transformedReqData;
+
+			/* create request data (url, post data) */
+			pRet = PianoRequest (ph, req, PIANO_REQUEST_ADD_FEEDBACK);
+			/* and reset request type/data */
+			req->type = PIANO_REQUEST_RATE_SONG;
+			req->data = reqData;
+
+			return pRet;
+			break;
+		}
+
+		case PIANO_REQUEST_MOVE_SONG: {
+			/* move song to a different station, needs two requests */
+			PianoRequestDataMoveSong_t *reqData = req->data;
+			PianoRequestDataAddFeedback_t transformedReqData;
+			PianoReturn_t pRet;
+
+			assert (reqData != NULL);
+			assert (reqData->song != NULL);
+			assert (reqData->from != NULL);
+			assert (reqData->to != NULL);
+			assert (reqData->step < 2);
+
+			transformedReqData.musicId = reqData->song->musicId;
+			transformedReqData.userSeed = "";
+			transformedReqData.songType = reqData->song->songType;
+			transformedReqData.testStrategy = reqData->song->testStrategy;
+			req->data = &transformedReqData;
+
+			switch (reqData->step) {
+				case 0:
+					transformedReqData.stationId = reqData->from->id;
+					transformedReqData.rating = PIANO_RATE_BAN;
+					break;
+
+				case 1:
+					transformedReqData.stationId = reqData->to->id;
+					transformedReqData.rating = PIANO_RATE_LOVE;
+					break;
+			}
+
+			/* create request data (url, post data) */
+			pRet = PianoRequest (ph, req, PIANO_REQUEST_ADD_FEEDBACK);
+			/* and reset request type/data */
+			req->type = PIANO_REQUEST_MOVE_SONG;
+			req->data = reqData;
+
+			return pRet;
+			break;
+		}
+	}
+
+	if ((req->postData = PianoEncryptString (xmlSendBuf)) == NULL) {
+		return PIANO_RET_OUT_OF_MEMORY;
+	}
+
+	return PIANO_RET_OK;
+}
+
+/*	parse xml response and update data structures/return new data structure
+ *	@param piano handle
+ *	@param initialized request (expects responseData to be a NUL-terminated
+ *			string)
+ */
+PianoReturn_t PianoResponse (PianoHandle_t *ph, PianoRequest_t *req) {
+	PianoReturn_t ret = PIANO_RET_ERR;
+
+	assert (ph != NULL);
+	assert (req != NULL);
+
+	switch (req->type) {
+		case PIANO_REQUEST_LOGIN: {
+			/* authenticate user */
+			PianoRequestDataLogin_t *reqData = req->data;
+
+			assert (req->responseData != NULL);
+			assert (reqData != NULL);
+
+			switch (reqData->step) {
+				case 0: {
+					char *cryptedTimestamp = NULL;
+
+					assert (req->responseData != NULL);
+
+					/* abusing parseNarrative; has same xml structure */
+					ret = PianoXmlParseNarrative (req->responseData, &cryptedTimestamp);
+					if (cryptedTimestamp != NULL) {
+						unsigned long timestamp = 0;
+						time_t realTimestamp = time (NULL);
+						char *decryptedTimestamp = NULL, *decryptedPos = NULL;
+						unsigned char i = 4;
+
+						if ((decryptedTimestamp = PianoDecryptString (cryptedTimestamp)) != NULL) {
+							decryptedPos = decryptedTimestamp;
+							/* skip four bytes garbage? at beginning */
+							while (i-- > 0 && *decryptedPos++ != '\0');
+							timestamp = strtoul (decryptedPos, NULL, 0);
+							ph->timeOffset = realTimestamp - timestamp;
+
+							free (decryptedTimestamp);
+						}
+						free (cryptedTimestamp);
+					}
+					ret = PIANO_RET_CONTINUE_REQUEST;
+					++reqData->step;
+					break;
+				}
+
+				case 1:
+					/* information exists when reauthenticating, destroy to
+					 * avoid memleak */
+					if (ph->user.listenerId != NULL) {
+						PianoDestroyUserInfo (&ph->user);
+					}
+					ret = PianoXmlParseUserinfo (ph, req->responseData);
+					break;
+			}
+			break;
+		}
+
+		case PIANO_REQUEST_GET_STATIONS:
+			/* get stations */
+			assert (req->responseData != NULL);
+			
+			ret = PianoXmlParseStations (ph, req->responseData);
+			break;
+
+		case PIANO_REQUEST_GET_PLAYLIST: {
+			/* get playlist, usually four songs */
+			PianoRequestDataGetPlaylist_t *reqData = req->data;
+
+			assert (req->responseData != NULL);
+			assert (reqData != NULL);
+
+			reqData->retPlaylist = NULL;
+			ret = PianoXmlParsePlaylist (ph, req->responseData,
+					&reqData->retPlaylist);
+			break;
+		}
+
+		case PIANO_REQUEST_RATE_SONG:
+			/* love/ban song */
+			assert (req->responseData != NULL);
+
+			ret = PianoXmlParseSimple (req->responseData);
+			if (ret == PIANO_RET_OK) {
+				PianoRequestDataRateSong_t *reqData = req->data;
+				reqData->song->rating = reqData->rating;
+			}
+			break;
+
+		case PIANO_REQUEST_ADD_FEEDBACK:
+			/* never ever use this directly, low-level call */
+			assert (0);
+			break;
+
+		case PIANO_REQUEST_MOVE_SONG: {
+			/* move song to different station */
+			PianoRequestDataMoveSong_t *reqData = req->data;
+
+			assert (req->responseData != NULL);
+			assert (reqData != NULL);
+			assert (reqData->step < 2);
+
+			ret = PianoXmlParseSimple (req->responseData);
+			if (ret == PIANO_RET_OK && reqData->step == 0) {
+				ret = PIANO_RET_CONTINUE_REQUEST;
+				++reqData->step;
+			}
+			break;
+		}
+
+		case PIANO_REQUEST_RENAME_STATION:
+			/* rename station and update PianoStation_t structure */
+			assert (req->responseData != NULL);
+
+			if ((ret = PianoXmlParseSimple (req->responseData)) == PIANO_RET_OK) {
+				PianoRequestDataRenameStation_t *reqData = req->data;
+
+				assert (reqData != NULL);
+				assert (reqData->station != NULL);
+				assert (reqData->newName != NULL);
+
+				free (reqData->station->name);
+				reqData->station->name = strdup (reqData->newName);
+			}
+			break;
+
+		case PIANO_REQUEST_DELETE_STATION:
+			/* delete station from server and station list */
+			assert (req->responseData != NULL);
+
+			if ((ret = PianoXmlParseSimple (req->responseData)) == PIANO_RET_OK) {
+				PianoStation_t *station = req->data;
+
+				assert (station != NULL);
+
+				/* delete station from local station list */
+				PianoStation_t *curStation = ph->stations, *lastStation = NULL;
+				while (curStation != NULL) {
+					if (curStation == station) {
+						if (lastStation != NULL) {
+							lastStation->next = curStation->next;
+						} else {
+							/* first station in list */
+							ph->stations = curStation->next;
+						}
+						PianoDestroyStation (curStation);
+						free (curStation);
+						break;
+					}
+					lastStation = curStation;
+					curStation = curStation->next;
+				}
+			}
+			break;
+
+		case PIANO_REQUEST_SEARCH: {
+			/* search artist/song */
+			PianoRequestDataSearch_t *reqData = req->data;
+
+			assert (req->responseData != NULL);
+			assert (reqData != NULL);
+
+			ret = PianoXmlParseSearch (req->responseData, &reqData->searchResult);
+			break;
+		}
+
+		case PIANO_REQUEST_CREATE_STATION: {
+			/* create station, insert new station into station list on success */
+			assert (req->responseData != NULL);
+
+			ret = PianoXmlParseCreateStation (ph, req->responseData);
+			break;
+		}
+
+		case PIANO_REQUEST_ADD_SEED: {
+			/* add seed to station, updates station structure */
+			PianoRequestDataAddSeed_t *reqData = req->data;
+
+			assert (req->responseData != NULL);
+			assert (reqData != NULL);
+			assert (reqData->station != NULL);
+
+			/* FIXME: update station data instead of replacing them */
+			ret = PianoXmlParseAddSeed (ph, req->responseData, reqData->station);
+			break;
+		}
+
+		case PIANO_REQUEST_ADD_TIRED_SONG:
+		case PIANO_REQUEST_SET_QUICKMIX:
+		case PIANO_REQUEST_BOOKMARK_SONG:
+		case PIANO_REQUEST_BOOKMARK_ARTIST:
+			assert (req->responseData != NULL);
+
+			ret = PianoXmlParseSimple (req->responseData);
+			break;
+
+		case PIANO_REQUEST_GET_GENRE_STATIONS:
+			/* get genre stations */
+			assert (req->responseData != NULL);
+
+			ret = PianoXmlParseGenreExplorer (ph, req->responseData);
+			break;
+
+		case PIANO_REQUEST_TRANSFORM_STATION: {
+			/* transform shared station into private and update isCreator flag */
+			PianoStation_t *station = req->data;
+
+			assert (req->responseData != NULL);
+			assert (station != NULL);
+
+			/* though this call returns a bunch of "new" data only this one is
+			 * changed and important (at the moment) */
+			if ((ret = PianoXmlParseTranformStation (req->responseData)) ==
+					PIANO_RET_OK) {
+				station->isCreator = 1;
+			}
+			break;
+		}
+
+		case PIANO_REQUEST_EXPLAIN: {
+			/* explain why song was selected */
+			PianoRequestDataExplain_t *reqData = req->data;
+
+			assert (req->responseData != NULL);
+			assert (reqData != NULL);
+
+			ret = PianoXmlParseNarrative (req->responseData, &reqData->retExplain);
+			break;
+		}
+
+		case PIANO_REQUEST_GET_SEED_SUGGESTIONS: {
+			/* find similar artists */
+			PianoRequestDataGetSeedSuggestions_t *reqData = req->data;
+
+			assert (req->responseData != NULL);
+			assert (reqData != NULL);
+
+			ret = PianoXmlParseSeedSuggestions (req->responseData,
+					&reqData->searchResult);
+			break;
+		}
+	}
+
+	return ret;
+}
+
+/*	get station from list by id
+ *	@param search here
+ *	@param search for this
+ *	@return the first station structure matching the given id
+ */
+PianoStation_t *PianoFindStationById (PianoStation_t *stations,
+		const char *searchStation) {
+	while (stations != NULL) {
+		if (strcmp (stations->id, searchStation) == 0) {
+			return stations;
+		}
+		stations = stations->next;
+	}
+	return NULL;
+}
+
+/*	convert return value to human-readable string
+ *	@param enum
+ *	@return error string
+ */
+const char *PianoErrorToStr (PianoReturn_t ret) {
+	switch (ret) {
+		case PIANO_RET_OK:
+			return "Everything is fine :)";
+			break;
+
+		case PIANO_RET_ERR:
+			return "Unknown.";
+			break;
+
+		case PIANO_RET_XML_INVALID:
+			return "Invalid XML.";
+			break;
+
+		case PIANO_RET_AUTH_TOKEN_INVALID:
+			return "Invalid auth token.";
+			break;
+		
+		case PIANO_RET_AUTH_USER_PASSWORD_INVALID:
+			return "Username and/or password not correct.";
+			break;
+
+		case PIANO_RET_NOT_AUTHORIZED:
+			return "Not authorized.";
+			break;
+
+		case PIANO_RET_PROTOCOL_INCOMPATIBLE:
+			return "Protocol incompatible. Please upgrade " PACKAGE ".";
+			break;
+
+		case PIANO_RET_READONLY_MODE:
+			return "Request cannot be completed at this time, please try "
+					"again later.";
+			break;
+
+		case PIANO_RET_STATION_CODE_INVALID:
+			return "Station id is invalid.";
+			break;
+
+		case PIANO_RET_IP_REJECTED:
+			return "Your ip address was rejected. Please setup a control "
+					"proxy (see manpage).";
+			break;
+
+		case PIANO_RET_STATION_NONEXISTENT:
+			return "Station does not exist.";
+			break;
+
+		case PIANO_RET_OUT_OF_MEMORY:
+			return "Out of memory.";
+			break;
+
+		case PIANO_RET_OUT_OF_SYNC:
+			return "Out of sync. Please correct your system's time.";
+			break;
+
+		case PIANO_RET_PLAYLIST_END:
+			return "Playlist end.";
+			break;
+
+		case PIANO_RET_QUICKMIX_NOT_PLAYABLE:
+			return "Quickmix not playable.";
+			break;
+
+		default:
+			return "No error message available.";
+			break;
+	}
+}
+
diff --git a/src/libpiano/piano.h b/src/libpiano/piano.h
new file mode 100644
index 0000000..ef6e386
--- /dev/null
+++ b/src/libpiano/piano.h
@@ -0,0 +1,244 @@
+/*
+Copyright (c) 2008-2010
+	Lars-Dominik Braun <PromyLOPh@lavabit.com>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+*/
+
+#ifndef _PIANO_H
+#define _PIANO_H
+
+/* this is our public API; don't expect this api to be stable as long as
+ * pandora does not provide a stable api
+ * all strings _must_ be utf-8 encoded. i won't care, but pandora does. so
+ * be nice and check the encoding of your strings. thanks :) */
+
+#define PIANO_RPC_HOST "www.pandora.com"
+#define PIANO_RPC_PORT "80"
+
+typedef struct PianoUserInfo {
+	char *webAuthToken;
+	char *listenerId;
+	char *authToken;
+} PianoUserInfo_t;
+
+typedef struct PianoStation {
+	char isCreator;
+	char isQuickMix;
+	char useQuickMix; /* station will be included in quickmix */
+	char *name;
+	char *id;
+	struct PianoStation *next;
+} PianoStation_t;
+
+typedef enum {
+	PIANO_RATE_NONE = 0,
+	PIANO_RATE_LOVE = 1,
+	PIANO_RATE_BAN = 2
+} PianoSongRating_t;
+
+/* UNKNOWN should be 0, because memset sets audio format to 0 */
+typedef enum {
+	PIANO_AF_UNKNOWN = 0,
+	PIANO_AF_AACPLUS = 1,
+	PIANO_AF_MP3 = 2,
+	PIANO_AF_MP3_HI = 3
+} PianoAudioFormat_t;
+
+typedef struct PianoSong {
+	char *artist;
+	char *artistMusicId;
+	char *stationId;
+	char *album;
+	char *userSeed;
+	char *audioUrl;
+	char *coverArt;
+	char *musicId;
+	char *title;
+	float fileGain;
+	PianoSongRating_t rating;
+	PianoAudioFormat_t audioFormat;
+	int testStrategy;
+	unsigned int songType;
+	struct PianoSong *next;
+} PianoSong_t;
+
+/* currently only used for search results */
+typedef struct PianoArtist {
+	char *name;
+	char *musicId;
+	int score;
+	struct PianoArtist *next;
+} PianoArtist_t;
+
+typedef struct PianoGenre {
+	char *name;
+	char *musicId;
+	struct PianoGenre *next;
+} PianoGenre_t;
+
+typedef struct PianoGenreCategory {
+	char *name;
+	PianoGenre_t *genres;
+	struct PianoGenreCategory *next;
+} PianoGenreCategory_t;
+
+typedef struct PianoHandle {
+	char routeId[9];
+	PianoUserInfo_t user;
+	/* linked lists */
+	PianoStation_t *stations;
+	PianoGenreCategory_t *genreStations;
+	int timeOffset;
+} PianoHandle_t;
+
+typedef struct PianoSearchResult {
+	PianoSong_t *songs;
+	PianoArtist_t *artists;
+} PianoSearchResult_t;
+
+typedef enum {
+	/* 0 is reserved: memset (x, 0, sizeof (x)) */
+	PIANO_REQUEST_LOGIN = 1,
+	PIANO_REQUEST_GET_STATIONS = 2,
+	PIANO_REQUEST_GET_PLAYLIST = 3,
+	PIANO_REQUEST_RATE_SONG = 4,
+	PIANO_REQUEST_ADD_FEEDBACK = 5,
+	PIANO_REQUEST_MOVE_SONG = 6,
+	PIANO_REQUEST_RENAME_STATION = 7,
+	PIANO_REQUEST_DELETE_STATION = 8,
+	PIANO_REQUEST_SEARCH = 9,
+	PIANO_REQUEST_CREATE_STATION = 10,
+	PIANO_REQUEST_ADD_SEED = 11,
+	PIANO_REQUEST_ADD_TIRED_SONG = 12,
+	PIANO_REQUEST_SET_QUICKMIX = 13,
+	PIANO_REQUEST_GET_GENRE_STATIONS = 14,
+	PIANO_REQUEST_TRANSFORM_STATION = 15,
+	PIANO_REQUEST_EXPLAIN = 16,
+	PIANO_REQUEST_GET_SEED_SUGGESTIONS = 17,
+	PIANO_REQUEST_BOOKMARK_SONG = 18,
+	PIANO_REQUEST_BOOKMARK_ARTIST = 19,
+} PianoRequestType_t;
+
+typedef struct PianoRequest {
+	PianoRequestType_t type;
+	void *data;
+	char urlPath[1024];
+	char *postData;
+	char *responseData;
+} PianoRequest_t;
+
+/* request data structures */
+typedef struct {
+	char *user;
+	char *password;
+	unsigned char step;
+} PianoRequestDataLogin_t;
+
+typedef struct {
+	PianoStation_t *station;
+	PianoAudioFormat_t format;
+	PianoSong_t *retPlaylist;
+} PianoRequestDataGetPlaylist_t;
+
+typedef struct {
+	PianoSong_t *song;
+	PianoSongRating_t rating;
+} PianoRequestDataRateSong_t;
+
+typedef struct {
+	char *stationId;
+	char *musicId;
+	char *userSeed;
+	PianoSongRating_t rating;
+	unsigned int testStrategy;
+	unsigned int songType;
+} PianoRequestDataAddFeedback_t;
+
+typedef struct {
+	PianoSong_t *song;
+	PianoStation_t *from;
+	PianoStation_t *to;
+	unsigned short step;
+} PianoRequestDataMoveSong_t;
+
+typedef struct {
+	PianoStation_t *station;
+	char *newName;
+} PianoRequestDataRenameStation_t;
+
+typedef struct {
+	char *searchStr;
+	PianoSearchResult_t searchResult;
+} PianoRequestDataSearch_t;
+
+typedef struct {
+	char *type;
+	char *id;
+} PianoRequestDataCreateStation_t;
+
+typedef struct {
+	PianoStation_t *station;
+	char *musicId;
+} PianoRequestDataAddSeed_t;
+
+typedef struct {
+	PianoSong_t *song;
+	char *retExplain;
+} PianoRequestDataExplain_t;
+
+typedef struct {
+	char *musicId;
+	unsigned short max;
+	PianoSearchResult_t searchResult;
+} PianoRequestDataGetSeedSuggestions_t;
+
+typedef enum {
+	PIANO_RET_ERR = 0,
+	PIANO_RET_OK = 1,
+	PIANO_RET_XML_INVALID = 2,
+	PIANO_RET_AUTH_TOKEN_INVALID = 3,
+	PIANO_RET_AUTH_USER_PASSWORD_INVALID = 4,
+	PIANO_RET_CONTINUE_REQUEST = 5,
+	PIANO_RET_NOT_AUTHORIZED = 6,
+	PIANO_RET_PROTOCOL_INCOMPATIBLE = 7,
+	PIANO_RET_READONLY_MODE = 8,
+	PIANO_RET_STATION_CODE_INVALID = 9,
+	PIANO_RET_IP_REJECTED = 10,
+	PIANO_RET_STATION_NONEXISTENT = 11,
+	PIANO_RET_OUT_OF_MEMORY = 12,
+	PIANO_RET_OUT_OF_SYNC = 13,
+	PIANO_RET_PLAYLIST_END = 14,
+	PIANO_RET_QUICKMIX_NOT_PLAYABLE = 15,
+} PianoReturn_t;
+
+void PianoInit (PianoHandle_t *);
+void PianoDestroy (PianoHandle_t *);
+void PianoDestroyPlaylist (PianoSong_t *);
+void PianoDestroySearchResult (PianoSearchResult_t *);
+
+PianoReturn_t PianoRequest (PianoHandle_t *, PianoRequest_t *,
+		PianoRequestType_t);
+PianoReturn_t PianoResponse (PianoHandle_t *, PianoRequest_t *);
+void PianoDestroyRequest (PianoRequest_t *);
+
+PianoStation_t *PianoFindStationById (PianoStation_t *, const char *);
+const char *PianoErrorToStr (PianoReturn_t);
+
+#endif /* _PIANO_H */
diff --git a/src/libpiano/piano_private.h b/src/libpiano/piano_private.h
new file mode 100644
index 0000000..bb14c8f
--- /dev/null
+++ b/src/libpiano/piano_private.h
@@ -0,0 +1,31 @@
+/*
+Copyright (c) 2008-2010
+	Lars-Dominik Braun <PromyLOPh@lavabit.com>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+*/
+
+#ifndef _MAIN_H
+#define _MAIN_H
+
+#include "piano.h"
+
+void PianoDestroyStation (PianoStation_t *station);
+
+#endif /* _MAIN_H */
diff --git a/src/libpiano/xml.c b/src/libpiano/xml.c
new file mode 100644
index 0000000..01294d8
--- /dev/null
+++ b/src/libpiano/xml.c
@@ -0,0 +1,826 @@
+/*
+Copyright (c) 2008-2010
+	Lars-Dominik Braun <PromyLOPh@lavabit.com>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+*/
+
+#define _BSD_SOURCE /* required by strdup() */
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <ezxml.h>
+
+#include "piano.h"
+#include "crypt.h"
+#include "config.h"
+#include "piano_private.h"
+
+static void PianoXmlStructParser (const ezxml_t,
+		void (*callback) (const char *, const ezxml_t, void *), void *);
+static char *PianoXmlGetNodeText (const ezxml_t);
+
+/*	parse fault and get fault type
+ *	@param xml <name> content
+ *	@param xml <value> node
+ *	@param return error string
+ *	@return nothing
+ */
+static void PianoXmlIsFaultCb (const char *key, const ezxml_t value,
+		void *data) {
+	PianoReturn_t *ret = data;
+	char *valueStr = PianoXmlGetNodeText (value);
+	char *matchStart, *matchEnd;
+
+	if (strcmp ("faultString", key) == 0) {
+		*ret = PIANO_RET_ERR;
+		/* find fault identifier in a string like this:
+		 * com.savagebeast.radio.api.protocol.xmlrpc.RadioXmlRpcException:
+		 * 192.168.160.78|1213101717317|AUTH_INVALID_TOKEN|
+		 * Invalid auth token */
+		if ((matchStart = strchr (valueStr, '|')) != NULL) {
+			if ((matchStart = strchr (matchStart+1, '|')) != NULL) {
+				if ((matchEnd = strchr (matchStart+1, '|')) != NULL) {
+					/* changes text in xml node, but we don't care... */
+					*matchEnd = '\0';
+					++matchStart;
+					/* translate to our error message system */
+					if (strcmp ("AUTH_INVALID_TOKEN", matchStart) == 0) {
+						*ret = PIANO_RET_AUTH_TOKEN_INVALID;
+					} else if (strcmp ("AUTH_INVALID_USERNAME_PASSWORD",
+							matchStart) == 0) {
+						*ret = PIANO_RET_AUTH_USER_PASSWORD_INVALID;
+					} else if (strcmp ("LISTENER_NOT_AUTHORIZED",
+							matchStart) == 0) {
+						*ret = PIANO_RET_NOT_AUTHORIZED;
+					} else if (strcmp ("INCOMPATIBLE_VERSION",
+							matchStart) == 0) {
+						*ret = PIANO_RET_PROTOCOL_INCOMPATIBLE;
+					} else if (strcmp ("READONLY_MODE", matchStart) == 0) {
+						*ret = PIANO_RET_READONLY_MODE;
+					} else if (strcmp ("STATION_CODE_INVALID",
+							matchStart) == 0) {
+						*ret = PIANO_RET_STATION_CODE_INVALID;
+					} else if (strcmp ("STATION_DOES_NOT_EXIST",
+							matchStart) == 0) {
+						*ret = PIANO_RET_STATION_NONEXISTENT;
+					} else if (strcmp ("OUT_OF_SYNC", matchStart) == 0) {
+						*ret = PIANO_RET_OUT_OF_SYNC;
+					} else if (strcmp ("PLAYLIST_END", matchStart) == 0) {
+						*ret = PIANO_RET_PLAYLIST_END;
+					} else if (strcmp ("QUICKMIX_NOT_PLAYABLE", matchStart) == 0) {
+						*ret = PIANO_RET_QUICKMIX_NOT_PLAYABLE;
+					} else {
+						*ret = PIANO_RET_ERR;
+						printf (PACKAGE ": Unknown error %s in %s\n",
+								matchStart, valueStr);
+					}
+				}
+			}
+		}
+	} else if (strcmp ("faultCode", key) == 0) {
+		/* some errors can only be identified by looking at their id */
+		/* detect pandora's ip restriction */
+		if (strcmp ("12", valueStr) == 0) {
+			*ret = PIANO_RET_IP_REJECTED;
+		}
+	}
+}
+
+/*	check whether pandora returned an error or not
+ *	@param document root of xml doc
+ *	@return _RET_OK or fault code (_RET_*)
+ */
+static PianoReturn_t PianoXmlIsFault (ezxml_t xmlDoc) {
+	PianoReturn_t ret;
+
+	if ((xmlDoc = ezxml_child (xmlDoc, "fault")) != NULL) {
+		xmlDoc = ezxml_get (xmlDoc, "value", 0, "struct", -1);
+		PianoXmlStructParser (xmlDoc, PianoXmlIsFaultCb, &ret);
+		return ret;
+	}
+	return PIANO_RET_OK;
+}
+
+/*	parses things like this:
+ *	<struct>
+ *		<member>
+ *			<name />
+ *			<value />
+ *		</member>
+ *		<!-- ... -->
+ *	</struct>
+ *	@param xml node named "struct" (or containing a similar structure)
+ *	@param who wants to use this data? callback: content of <name> as
+ *			string, content of <value> as xmlNode (may contain other nodes
+ *			or text), additional data used by callback(); don't forget
+ *			to *copy* data taken from <name> or <value> as they will be
+ *			freed soon
+ *	@param extra data for callback
+ */
+static void PianoXmlStructParser (const ezxml_t structRoot,
+		void (*callback) (const char *, const ezxml_t, void *), void *data) {
+	ezxml_t curNode, keyNode, valueNode;
+	char *key;
+
+	/* get all <member> nodes */
+    for (curNode = ezxml_child (structRoot, "member"); curNode; curNode = curNode->next) {
+		/* reset variables */
+		key = NULL;
+		valueNode = keyNode = NULL;
+
+		keyNode = ezxml_child (curNode, "name");
+		if (keyNode != NULL) {
+			key = ezxml_txt (keyNode);
+		}
+
+		valueNode = ezxml_child (curNode, "value");
+		/* this will ignore empty <value /> nodes, but well... */
+		if (*key != '\0' && valueNode != NULL) {
+			(*callback) ((char *) key, valueNode, data);
+		}
+	}
+}
+
+/*	create xml parser from string
+ *	@param xml document
+ *	@param returns document pointer (needed to free memory later)
+ *	@param returns document root
+ *	@return _OK or error
+ */
+static PianoReturn_t PianoXmlInitDoc (char *xmlStr, ezxml_t *xmlDoc) {
+	PianoReturn_t ret;
+
+	if ((*xmlDoc = ezxml_parse_str (xmlStr, strlen (xmlStr))) == NULL) {
+		return PIANO_RET_XML_INVALID;
+	}
+
+	if ((ret = PianoXmlIsFault (*xmlDoc)) != PIANO_RET_OK) {
+		ezxml_free (*xmlDoc);
+		return ret;
+	}
+
+	return PIANO_RET_OK;
+}
+
+/*	get text from <value> nodes; some of them have <boolean>, <string>
+ *	or <int> subnodes, just ignore them
+ *	@param xml node <value>
+ */
+static char *PianoXmlGetNodeText (const ezxml_t node) {
+	char *retTxt = NULL;
+
+	retTxt = ezxml_txt (node);
+	/* no text => empty string */
+	if (*retTxt == '\0') {
+		retTxt = ezxml_txt (node->child);
+	}
+	return retTxt;
+}
+
+/*	structParser callback; writes userinfo to PianoUserInfo structure
+ *	@param value identifier
+ *	@param value node
+ *	@param pointer to userinfo structure
+ *	@return nothing
+ */
+static void PianoXmlParseUserinfoCb (const char *key, const ezxml_t value,
+		void *data) {
+	PianoUserInfo_t *user = data;
+	char *valueStr = PianoXmlGetNodeText (value);
+
+	if (strcmp ("webAuthToken", key) == 0) {
+		user->webAuthToken = strdup (valueStr);
+	} else if (strcmp ("authToken", key) == 0) {
+		user->authToken = strdup (valueStr);
+	} else if (strcmp ("listenerId", key) == 0) {
+		user->listenerId = strdup (valueStr);
+	}
+}
+
+static void PianoXmlParseStationsCb (const char *key, const ezxml_t value,
+		void *data) {
+	PianoStation_t *station = data;
+	char *valueStr = PianoXmlGetNodeText (value);
+
+	if (strcmp ("stationName", key) == 0) {
+		station->name = strdup (valueStr);
+	} else if (strcmp ("stationId", key) == 0) {
+		station->id = strdup (valueStr);
+	} else if (strcmp ("isQuickMix", key) == 0) {
+		station->isQuickMix = (strcmp (valueStr, "1") == 0);
+	} else if (strcmp ("isCreator", key) == 0) {
+		station->isCreator = (strcmp (valueStr, "1") == 0);
+	}
+}
+
+static void PianoXmlParsePlaylistCb (const char *key, const ezxml_t value,
+		void *data) {
+	PianoSong_t *song = data;
+	char *valueStr = PianoXmlGetNodeText (value);
+
+	if (strcmp ("audioURL", key) == 0) {
+		/* last 48 chars of audioUrl are encrypted, but they put the key
+		 * into the door's lock... */
+		const char urlTailN = 48;
+		const size_t valueStrN = strlen (valueStr);
+		char *urlTail = NULL,
+				*urlTailCrypted = &valueStr[valueStrN - urlTailN];
+
+		/* don't try to decrypt if string is too short (=> invalid memory
+		 * reads/writes) */
+		if (valueStrN > urlTailN &&
+				(urlTail = PianoDecryptString (urlTailCrypted)) != NULL) {
+			if ((song->audioUrl = calloc (valueStrN + 1,
+					sizeof (*song->audioUrl))) != NULL) {
+				memcpy (song->audioUrl, valueStr, valueStrN - urlTailN);
+				/* FIXME: the key seems to be broken... so ignore 8 x 0x08
+				 * postfix; urlTailN/2 because the encrypted hex string is now
+				 * decoded */
+				memcpy (&song->audioUrl[valueStrN - urlTailN], urlTail,
+						urlTailN/2 - 8);
+			}
+			free (urlTail);
+		}
+	} else if (strcmp ("artRadio", key) == 0) {
+		song->coverArt = strdup (valueStr);
+	} else if (strcmp ("artistSummary", key) == 0) {
+		song->artist = strdup (valueStr);
+	} else if (strcmp ("musicId", key) == 0) {
+		song->musicId = strdup (valueStr);
+	} else if (strcmp ("userSeed", key) == 0) {
+		song->userSeed = strdup (valueStr);
+	} else if (strcmp ("songTitle", key) == 0) {
+		song->title = strdup (valueStr);
+	} else if (strcmp ("rating", key) == 0) {
+		if (strcmp (valueStr, "1") == 0) {
+			song->rating = PIANO_RATE_LOVE;
+		} else {
+			song->rating = PIANO_RATE_NONE;
+		}
+	} else if (strcmp ("stationId", key) == 0) {
+		song->stationId = strdup (valueStr);
+	} else if (strcmp ("albumTitle", key) == 0) {
+		song->album = strdup (valueStr);
+	} else if (strcmp ("fileGain", key) == 0) {
+		song->fileGain = atof (valueStr);
+	} else if (strcmp ("audioEncoding", key) == 0) {
+		if (strcmp (valueStr, "aacplus") == 0) {
+			song->audioFormat = PIANO_AF_AACPLUS;
+		} else if (strcmp (valueStr, "mp3") == 0) {
+			song->audioFormat = PIANO_AF_MP3;
+		} else if (strcmp (valueStr, "mp3-hifi") == 0) {
+			song->audioFormat = PIANO_AF_MP3_HI;
+		}
+	} else if (strcmp ("artistMusicId", key) == 0) {
+		song->artistMusicId = strdup (valueStr);
+ 	} else if (strcmp ("testStrategy", key) == 0) {
+		song->testStrategy = atoi (valueStr);
+	} else if (strcmp ("songType", key) == 0) {
+		song->songType = atoi (valueStr);
+	}
+}
+
+/*	parses userinfos sent by pandora as login response
+ *	@param piano handle
+ *	@param utf-8 string
+ *	@return _RET_OK or error
+ */
+PianoReturn_t PianoXmlParseUserinfo (PianoHandle_t *ph, char *xml) {
+	ezxml_t xmlDoc, structNode;
+	PianoReturn_t ret;
+
+	if ((ret = PianoXmlInitDoc (xml, &xmlDoc)) != PIANO_RET_OK) {
+		return ret;
+	}
+
+	/* <methodResponse> <params> <param> <value> <struct> */
+	structNode = ezxml_get (xmlDoc, "params", 0, "param", 0, "value", 0, "struct", -1);
+	PianoXmlStructParser (structNode, PianoXmlParseUserinfoCb, &ph->user);
+
+	ezxml_free (xmlDoc);
+
+	return PIANO_RET_OK;
+}
+
+static void PianoXmlParseQuickMixStationsCb (const char *key, const ezxml_t value,
+		void *data) {
+	char ***retIds = data;
+	char **ids = NULL;
+	size_t idsN = 0;
+	ezxml_t curNode;
+
+	if (strcmp ("quickMixStationIds", key) == 0) {
+		for (curNode = ezxml_child (ezxml_get (value, "array", 0, "data", -1), "value");
+				curNode; curNode = curNode->next) {
+			idsN++;
+			if (ids == NULL) {
+				if ((ids = calloc (idsN, sizeof (*ids))) == NULL) {
+					*retIds = NULL;
+					return;
+				}
+			} else {
+				/* FIXME: memory leak (on failure) */
+				if ((ids = realloc (ids, idsN * sizeof (*ids))) == NULL) {
+					*retIds = NULL;
+					return;
+				}
+			}
+			ids[idsN-1] = strdup (PianoXmlGetNodeText (curNode));
+		}
+		/* append NULL: list ends here */
+		idsN++;
+		/* FIXME: copy&waste */
+		if (ids == NULL) {
+			if ((ids = calloc (idsN, sizeof (*ids))) == NULL) {
+				*retIds = NULL;
+				return;
+			}
+		} else {
+			if ((ids = realloc (ids, idsN * sizeof (*ids))) == NULL) {
+				*retIds = NULL;
+				return;
+			}
+		}
+		ids[idsN-1] = NULL;
+	}
+	*retIds = ids;
+}
+
+/*	parse stations returned by pandora
+ *	@param piano handle
+ *	@param xml returned by pandora
+ *	@return _RET_OK or error
+ */
+PianoReturn_t PianoXmlParseStations (PianoHandle_t *ph, char *xml) {
+	ezxml_t xmlDoc, dataNode;
+	PianoReturn_t ret;
+	char **quickMixIds = NULL, **curQuickMixId = NULL;
+
+	if ((ret = PianoXmlInitDoc (xml, &xmlDoc)) != PIANO_RET_OK) {
+		return ret;
+	}
+
+	dataNode = ezxml_get (xmlDoc, "params", 0, "param", 0, "value", 0, "array",
+			0, "data", -1);
+
+	for (dataNode = ezxml_child (dataNode, "value"); dataNode;
+			dataNode = dataNode->next) {
+		PianoStation_t *tmpStation;
+
+		if ((tmpStation = calloc (1, sizeof (*tmpStation))) == NULL) {
+			ezxml_free (xmlDoc);
+			return PIANO_RET_OUT_OF_MEMORY;
+		}
+
+		PianoXmlStructParser (ezxml_child (dataNode, "struct"),
+				PianoXmlParseStationsCb, tmpStation);
+
+		/* get stations selected for quickmix */
+		if (tmpStation->isQuickMix) {
+			PianoXmlStructParser (ezxml_child (dataNode, "struct"),
+					PianoXmlParseQuickMixStationsCb, &quickMixIds);
+		}
+		/* start new linked list or append */
+		if (ph->stations == NULL) {
+			ph->stations = tmpStation;
+		} else {
+			PianoStation_t *curStation = ph->stations;
+			while (curStation->next != NULL) {
+				curStation = curStation->next;
+			}
+			curStation->next = tmpStation;
+		}
+	}
+	/* set quickmix flags after all stations are read */
+	if (quickMixIds != NULL) {
+		curQuickMixId = quickMixIds;
+		while (*curQuickMixId != NULL) {
+			PianoStation_t *curStation = PianoFindStationById (ph->stations,
+					*curQuickMixId);
+			if (curStation != NULL) {
+				curStation->useQuickMix = 1;
+			}
+			free (*curQuickMixId);
+			curQuickMixId++;
+		}
+		free (quickMixIds);
+	}
+
+	ezxml_free (xmlDoc);
+
+	return PIANO_RET_OK;
+}
+
+/*	parse "create station" answer (it returns a new station structure)
+ *	@param piano handle
+ *	@param xml document
+ *	@return nothing yet
+ */
+PianoReturn_t PianoXmlParseCreateStation (PianoHandle_t *ph, char *xml) {
+	ezxml_t xmlDoc, dataNode;
+	PianoStation_t *tmpStation;
+	PianoReturn_t ret;
+
+	if ((ret = PianoXmlInitDoc (xml, &xmlDoc)) != PIANO_RET_OK) {
+		return ret;
+	}
+
+	dataNode = ezxml_get (xmlDoc, "params", 0, "param", 0, "value", 0, "struct", -1);
+
+	if ((tmpStation = calloc (1, sizeof (*tmpStation))) == NULL) {
+		ezxml_free (xmlDoc);
+		return PIANO_RET_OUT_OF_MEMORY;
+	}
+	PianoXmlStructParser (dataNode, PianoXmlParseStationsCb, tmpStation);
+	/* FIXME: copy & waste */
+	/* start new linked list or append */
+	if (ph->stations == NULL) {
+		ph->stations = tmpStation;
+	} else {
+		PianoStation_t *curStation = ph->stations;
+		while (curStation->next != NULL) {
+			curStation = curStation->next;
+		}
+		curStation->next = tmpStation;
+	}
+	
+	ezxml_free (xmlDoc);
+
+	return PIANO_RET_OK;
+}
+
+/*	parse "add seed" answer, nearly the same as ParseCreateStation
+ *	@param piano handle
+ *	@param xml document
+ *	@param update this station
+ */
+PianoReturn_t PianoXmlParseAddSeed (PianoHandle_t *ph, char *xml,
+		PianoStation_t *station) {
+	ezxml_t xmlDoc, dataNode;
+	PianoReturn_t ret;
+
+	if ((ret = PianoXmlInitDoc (xml, &xmlDoc)) != PIANO_RET_OK) {
+		return ret;
+	}
+
+	dataNode = ezxml_get (xmlDoc, "params", 0, "param", 0, "value", 0, "struct", -1);
+	PianoDestroyStation (station);
+	PianoXmlStructParser (dataNode, PianoXmlParseStationsCb, station);
+	
+	ezxml_free (xmlDoc);
+
+	return PIANO_RET_OK;
+}
+
+/*	parses playlist; used when searching too
+ *	@param piano handle
+ *	@param xml document
+ *	@param return: playlist
+ */
+PianoReturn_t PianoXmlParsePlaylist (PianoHandle_t *ph, char *xml,
+		PianoSong_t **retPlaylist) {
+	ezxml_t xmlDoc, dataNode;
+	PianoReturn_t ret;
+
+	if ((ret = PianoXmlInitDoc (xml, &xmlDoc)) != PIANO_RET_OK) {
+		return ret;
+	}
+
+	dataNode = ezxml_get (xmlDoc, "params", 0, "param", 0, "value", 0, "array",
+			0, "data", -1);
+
+	for (dataNode = ezxml_child (dataNode, "value"); dataNode;
+			dataNode = dataNode->next) {
+		PianoSong_t *tmpSong;
+		
+		if ((tmpSong = calloc (1, sizeof (*tmpSong))) == NULL) {
+			ezxml_free (xmlDoc);
+			return PIANO_RET_OUT_OF_MEMORY;
+		}
+
+		PianoXmlStructParser (ezxml_child (dataNode, "struct"),
+				PianoXmlParsePlaylistCb, tmpSong);
+		/* begin linked list or append */
+		if (*retPlaylist == NULL) {
+			*retPlaylist = tmpSong;
+		} else {
+			PianoSong_t *curSong = *retPlaylist;
+			while (curSong->next != NULL) {
+				curSong = curSong->next;
+			}
+			curSong->next = tmpSong;
+		}
+	}
+
+	ezxml_free (xmlDoc);
+
+	return PIANO_RET_OK;
+}
+
+/*	parse simple answers like this: <?xml version="1.0" encoding="UTF-8"?>
+ *	<methodResponse><params><param><value>1</value></param></params>
+ *	</methodResponse>
+ *	@param xml string
+ *	@return
+ */
+PianoReturn_t PianoXmlParseSimple (char *xml) {
+	ezxml_t xmlDoc, dataNode;
+	PianoReturn_t ret;
+
+	if ((ret = PianoXmlInitDoc (xml, &xmlDoc)) != PIANO_RET_OK) {
+		return ret;
+	}
+
+	dataNode = ezxml_get (xmlDoc, "params", 0, "param", 0, "value", -1);
+
+	if (strcmp (ezxml_txt (dataNode), "1") == 0) {
+		ret = PIANO_RET_OK;
+	} else {
+		ret = PIANO_RET_ERR;
+	}
+
+	ezxml_free (xmlDoc);
+
+	return ret;
+}
+
+/*	xml struct parser callback, used in PianoXmlParseSearchCb
+ */
+static void PianoXmlParseSearchArtistCb (const char *key, const ezxml_t value,
+		void *data) {
+	PianoArtist_t *artist = data;
+	char *valueStr = PianoXmlGetNodeText (value);
+
+	if (strcmp ("artistName", key) == 0) {
+		artist->name = strdup (valueStr);
+	} else if (strcmp ("musicId", key) == 0) {
+		artist->musicId = strdup (valueStr);
+	}
+}
+
+/*	callback for xml struct parser used in PianoXmlParseSearch, "switch" for
+ *	PianoXmlParseSearchArtistCb and PianoXmlParsePlaylistCb
+ */
+static void PianoXmlParseSearchCb (const char *key, const ezxml_t value,
+		void *data) {
+	PianoSearchResult_t *searchResult = data;
+	ezxml_t curNode;
+
+	if (strcmp ("artists", key) == 0) {
+		/* skip <value><array><data> */
+		for (curNode = ezxml_child (ezxml_get (value, "array", 0, "data", -1), "value");
+				curNode; curNode = curNode->next) {
+			PianoArtist_t *artist;
+			
+			if ((artist = calloc (1, sizeof (*artist))) == NULL) {
+				/* fail silently */
+				break;
+			}
+
+			memset (artist, 0, sizeof (*artist));
+
+			PianoXmlStructParser (ezxml_child (curNode, "struct"),
+					PianoXmlParseSearchArtistCb, artist);
+
+			/* add result to linked list */
+			if (searchResult->artists == NULL) {
+				searchResult->artists = artist;
+			} else {
+				PianoArtist_t *curArtist = searchResult->artists;
+				while (curArtist->next != NULL) {
+					curArtist = curArtist->next;
+				}
+				curArtist->next = artist;
+			}
+		}
+	} else if (strcmp ("songs", key) == 0) {
+		for (curNode = ezxml_child (ezxml_get (value, "array", 0, "data", -1), "value");
+				curNode; curNode = curNode->next) {
+			/* FIXME: copy & waste */
+			PianoSong_t *tmpSong;
+			
+			if ((tmpSong = calloc (1, sizeof (*tmpSong))) == NULL) {
+				/* fail silently */
+				break;
+			}
+
+			PianoXmlStructParser (ezxml_child (curNode, "struct"),
+					PianoXmlParsePlaylistCb, tmpSong);
+			/* begin linked list or append */
+			if (searchResult->songs == NULL) {
+				searchResult->songs = tmpSong;
+			} else {
+				PianoSong_t *curSong = searchResult->songs;
+				while (curSong->next != NULL) {
+					curSong = curSong->next;
+				}
+				curSong->next = tmpSong;
+			}
+		}
+	}
+}
+
+/*	parse search result; searchResult is nulled before use
+ *	@param xml document
+ *	@param returns search result
+ *	@return nothing yet
+ */
+PianoReturn_t PianoXmlParseSearch (char *xml,
+		PianoSearchResult_t *searchResult) {
+	ezxml_t xmlDoc, dataNode;
+	PianoReturn_t ret;
+
+	if ((ret = PianoXmlInitDoc (xml, &xmlDoc)) != PIANO_RET_OK) {
+		return ret;
+	}
+	
+	dataNode = ezxml_get (xmlDoc, "params", 0, "param", 0, "value", 0, "struct", -1);
+	/* we need a "clean" search result (with null pointers) */
+	memset (searchResult, 0, sizeof (*searchResult));
+	PianoXmlStructParser (dataNode, PianoXmlParseSearchCb, searchResult);
+
+	ezxml_free (xmlDoc);
+
+	return PIANO_RET_OK;
+}
+
+/*	FIXME: copy&waste (PianoXmlParseSearch)
+ */
+PianoReturn_t PianoXmlParseSeedSuggestions (char *xml,
+		PianoSearchResult_t *searchResult) {
+	ezxml_t xmlDoc, dataNode;
+	PianoReturn_t ret;
+
+	if ((ret = PianoXmlInitDoc (xml, &xmlDoc)) != PIANO_RET_OK) {
+		return ret;
+	}
+	
+	dataNode = ezxml_get (xmlDoc, "params", 0, "param", 0, "value", -1);
+	/* we need a "clean" search result (with null pointers) */
+	memset (searchResult, 0, sizeof (*searchResult));
+	/* reuse seach result parser; structure is nearly the same */
+	PianoXmlParseSearchCb ("artists", dataNode, searchResult);
+
+	ezxml_free (xmlDoc);
+
+	return PIANO_RET_OK;
+}
+
+/*	encode reserved xml chars
+ *	TODO: remove and use ezxml_ampencode
+ *	@param encode this
+ *	@return encoded string or NULL
+ */
+char *PianoXmlEncodeString (const char *s) {
+	char *replacements[] = {"&&amp;", "'&apos;", "\"&quot;", "<&lt;",
+			">&gt;", NULL};
+	char **r, *sOut, *sOutCurr, found;
+
+	if ((sOut = calloc (strlen (s) * 5 + 1, sizeof (*sOut))) == NULL) {
+		return NULL;
+	}
+
+	sOutCurr = sOut;
+
+	while (*s != '\0') {
+		r = replacements;
+		found = 0;
+		while (*r != NULL) {
+			if (*s == *r[0]) {
+				found = 1;
+				strcat (sOutCurr, (*r) + 1);
+				sOutCurr += strlen ((*r) + 1);
+				break;
+			}
+			r++;
+		}
+		if (!found) {
+			*sOutCurr = *s;
+			sOutCurr++;
+		}
+		s++;
+	}
+	return sOut;
+}
+
+PianoReturn_t PianoXmlParseGenreExplorer (PianoHandle_t *ph, char *xml) {
+	ezxml_t xmlDoc, catNode;
+	PianoReturn_t ret;
+
+    if ((ret = PianoXmlInitDoc (xml, &xmlDoc)) != PIANO_RET_OK) {
+        return ret;
+    }
+
+	/* get all <member> nodes */
+    for (catNode = ezxml_child (xmlDoc, "category"); catNode;
+			catNode = catNode->next) {
+		PianoGenreCategory_t *tmpGenreCategory;
+		ezxml_t genreNode;
+
+		if ((tmpGenreCategory = calloc (1, sizeof (*tmpGenreCategory))) == NULL) {
+			ezxml_free (xmlDoc);
+			return PIANO_RET_OUT_OF_MEMORY;
+		}
+
+		tmpGenreCategory->name = strdup (ezxml_attr (catNode, "categoryName"));
+
+		/* get genre subnodes */
+		for (genreNode = ezxml_child (catNode, "genre"); genreNode;
+				genreNode = genreNode->next) {
+			PianoGenre_t *tmpGenre;
+
+			if ((tmpGenre = calloc (1, sizeof (*tmpGenre))) == NULL) {
+				ezxml_free (xmlDoc);
+				return PIANO_RET_OUT_OF_MEMORY;
+			}
+
+			/* get genre attributes */
+			tmpGenre->name = strdup (ezxml_attr (genreNode, "name"));
+			tmpGenre->musicId = strdup (ezxml_attr (genreNode, "musicId"));
+
+			/* append station */
+			if (tmpGenreCategory->genres == NULL) {
+				tmpGenreCategory->genres = tmpGenre;
+			} else {
+				PianoGenre_t *curGenre =
+						tmpGenreCategory->genres;
+				while (curGenre->next != NULL) {
+					curGenre = curGenre->next;
+				}
+				curGenre->next = tmpGenre;
+			}
+		}
+		/* append category */
+		if (ph->genreStations == NULL) {
+			ph->genreStations = tmpGenreCategory;
+		} else {
+			PianoGenreCategory_t *curCat = ph->genreStations;
+			while (curCat->next != NULL) {
+				curCat = curCat->next;
+			}
+			curCat->next = tmpGenreCategory;
+		}
+	}
+
+	ezxml_free (xmlDoc);
+
+	return PIANO_RET_OK;
+}
+
+/*	dummy function, only checks for errors
+ *	@param xml doc
+ *	@return _OK or error
+ */
+PianoReturn_t PianoXmlParseTranformStation (char *xml) {
+	ezxml_t xmlDoc;
+	PianoReturn_t ret;
+
+	if ((ret = PianoXmlInitDoc (xml, &xmlDoc)) != PIANO_RET_OK) {
+		return ret;
+	}
+	
+	ezxml_free (xmlDoc);
+
+	return PIANO_RET_OK;
+}
+
+/*	parses "why did you play ...?" answer
+ *	@param xml
+ *	@param returns the answer
+ *	@return _OK or error
+ */
+PianoReturn_t PianoXmlParseNarrative (char *xml, char **retNarrative) {
+	ezxml_t xmlDoc, dataNode;
+	PianoReturn_t ret;
+
+	if ((ret = PianoXmlInitDoc (xml, &xmlDoc)) != PIANO_RET_OK) {
+		return ret;
+	}
+
+	/* <methodResponse> <params> <param> <value> $textnode */
+	dataNode = ezxml_get (xmlDoc, "params", 0, "param", 0, "value", -1);
+	*retNarrative = strdup (ezxml_txt (dataNode));
+
+	ezxml_free (xmlDoc);
+
+	return ret;
+}
+
diff --git a/src/libpiano/xml.h b/src/libpiano/xml.h
new file mode 100644
index 0000000..dc778ca
--- /dev/null
+++ b/src/libpiano/xml.h
@@ -0,0 +1,48 @@
+/*
+Copyright (c) 2008-2010
+	Lars-Dominik Braun <PromyLOPh@lavabit.com>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+*/
+
+#ifndef _XML_H
+#define _XML_H
+
+#include "piano.h"
+
+PianoReturn_t PianoXmlParseUserinfo (PianoHandle_t *ph, const char *xml);
+PianoReturn_t PianoXmlParseStations (PianoHandle_t *ph, const char *xml);
+PianoReturn_t PianoXmlParsePlaylist (PianoHandle_t *ph, const char *xml,
+		PianoSong_t **);
+PianoReturn_t PianoXmlParseSearch (const char *searchXml,
+		PianoSearchResult_t *searchResult);
+PianoReturn_t PianoXmlParseSimple (const char *xml);
+PianoReturn_t PianoXmlParseCreateStation (PianoHandle_t *ph,
+		const char *xml);
+PianoReturn_t PianoXmlParseAddSeed (PianoHandle_t *ph, const char *xml,
+		PianoStation_t *station);
+PianoReturn_t PianoXmlParseGenreExplorer (PianoHandle_t *ph,
+		const char *xmlContent);
+PianoReturn_t PianoXmlParseTranformStation (const char *searchXml);
+PianoReturn_t PianoXmlParseNarrative (const char *xml, char **retNarrative);
+PianoReturn_t PianoXmlParseSeedSuggestions (char *, PianoSearchResult_t *);
+
+char *PianoXmlEncodeString (const char *s);
+
+#endif /* _XML_H */