Rewrote the example configurations and split them

up into seperate files for each pseudo client.

Also reorganized how the modules are stored, and
made most of the old "extra" modules "core"

1 files changed, 222 insertions, 0 deletions

diff --git a/modules/encryption/enc_sha1.cpp b/modules/encryption/enc_sha1.cpp
new file mode 100644
index 000000000..4fe321bdc
--- /dev/null
+++ b/modules/encryption/enc_sha1.cpp
@@ -0,0 +1,222 @@
+/*
+SHA-1 in C
+By Steve Reid <steve@edmweb.com>
+100% Public Domain
+
+Test Vectors (from FIPS PUB 180-1)
+"abc"
+  A9993E36 4706816A BA3E2571 7850C26C 9CD0D89D
+"abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq"
+  84983E44 1C3BD26E BAAE4AA1 F95129E5 E54670F1
+A million repetitions of "a"
+  34AA973C D4C4DAA4 F61EEB2B DBAD2731 6534016F
+*/
+
+/* #define LITTLE_ENDIAN * This should be #define'd if true. */
+
+#include "module.h"
+
+struct SHA1_CTX
+{
+	uint32 state[5];
+	uint32 count[2];
+	unsigned char buffer[64];
+};
+
+void SHA1Transform(uint32 state[5], const unsigned char buffer[64]);
+void SHA1Init(SHA1_CTX *context);
+void SHA1Update(SHA1_CTX *context, const unsigned char *data, uint32 len);
+void SHA1Final(unsigned char digest[20], SHA1_CTX *context);
+
+inline static uint32 rol(uint32 value, uint32 bits) { return (value << bits) | (value >> (32 - bits)); }
+
+union CHAR64LONG16
+{
+	unsigned char c[64];
+	uint32 l[16];
+};
+
+/* blk0() and blk() perform the initial expand. */
+/* I got the idea of expanding during the round function from SSLeay */
+inline static uint32 blk0(CHAR64LONG16 *block, uint32 i)
+{
+#ifdef LITTLE_ENDIAN
+	return block->l[i] = (rol(block->l[i], 24) & 0xFF00FF00) | (rol(block->l[i], 8) & 0x00FF00FF);
+#else
+	return block->l[i];
+#endif
+}
+inline static uint32 blk(CHAR64LONG16 *block, uint32 i) { return block->l[i & 15] = rol(block->l[(i + 13) & 15] ^ block->l[(i + 8) & 15] ^ block->l[(i + 2) & 15] ^ block->l[i & 15],1); }
+
+/* (R0+R1), R2, R3, R4 are the different operations used in SHA1 */
+inline static void R0(CHAR64LONG16 *block, uint32 v, uint32 &w, uint32 x, uint32 y, uint32 &z, uint32 i) { z += ((w & (x ^ y)) ^ y) + blk0(block, i) + 0x5A827999 + rol(v, 5); w = rol(w, 30); }
+inline static void R1(CHAR64LONG16 *block, uint32 v, uint32 &w, uint32 x, uint32 y, uint32 &z, uint32 i) { z += ((w & (x ^ y)) ^ y) + blk(block, i) + 0x5A827999 + rol(v, 5); w = rol(w, 30); }
+inline static void R2(CHAR64LONG16 *block, uint32 v, uint32 &w, uint32 x, uint32 y, uint32 &z, uint32 i) { z += (w ^ x ^ y) + blk(block, i) + 0x6ED9EBA1 + rol(v, 5); w = rol(w, 30); }
+inline static void R3(CHAR64LONG16 *block, uint32 v, uint32 &w, uint32 x, uint32 y, uint32 &z, uint32 i) { z += (((w | x) & y) | (w & x)) + blk(block, i) + 0x8F1BBCDC + rol(v, 5); w = rol(w, 30); }
+inline static void R4(CHAR64LONG16 *block, uint32 v, uint32 &w, uint32 x, uint32 y, uint32 &z, uint32 i) { z += (w ^ x ^ y) + blk(block, i) + 0xCA62C1D6 + rol(v, 5); w = rol(w, 30); }
+
+/* Hash a single 512-bit block. This is the core of the algorithm. */
+
+void SHA1Transform(uint32 state[5], const unsigned char buffer[64])
+{
+	uint32 a, b, c, d, e;
+	static unsigned char workspace[64];
+	CHAR64LONG16 *block = reinterpret_cast<CHAR64LONG16 *>(workspace);
+	memcpy(block, buffer, 64);
+	/* Copy context->state[] to working vars */
+	a = state[0];
+	b = state[1];
+	c = state[2];
+	d = state[3];
+	e = state[4];
+	/* 4 rounds of 20 operations each. Loop unrolled. */
+	R0(block, a, b, c, d, e, 0); R0(block, e, a, b, c, d, 1); R0(block, d, e, a, b, c, 2); R0(block, c, d, e, a, b, 3);
+	R0(block, b, c, d, e, a, 4); R0(block, a, b, c, d, e, 5); R0(block, e, a, b, c, d, 6); R0(block, d, e, a, b, c, 7);
+	R0(block, c, d, e, a, b, 8); R0(block, b, c, d, e, a, 9); R0(block, a, b, c, d, e, 10); R0(block, e, a, b, c, d, 11);
+	R0(block, d, e, a, b, c, 12); R0(block, c, d, e, a, b, 13); R0(block, b, c, d, e, a, 14); R0(block, a, b, c, d, e, 15);
+	R1(block, e, a, b, c, d, 16); R1(block, d, e, a, b, c, 17); R1(block, c, d, e, a, b, 18); R1(block, b, c, d, e, a, 19);
+	R2(block, a, b, c, d, e, 20); R2(block, e, a, b, c, d, 21); R2(block, d, e, a, b, c, 22); R2(block, c, d, e, a, b, 23);
+	R2(block, b, c, d, e, a, 24); R2(block, a, b, c, d, e, 25); R2(block, e, a, b, c, d, 26); R2(block, d, e, a, b, c, 27);
+	R2(block, c, d, e, a, b, 28); R2(block, b, c, d, e, a, 29); R2(block, a, b, c, d, e, 30); R2(block, e, a, b, c, d, 31);
+	R2(block, d, e, a, b, c, 32); R2(block, c, d, e, a, b, 33); R2(block, b, c, d, e, a, 34); R2(block, a, b, c, d, e, 35);
+	R2(block, e, a, b, c, d, 36); R2(block, d, e, a, b, c, 37); R2(block, c, d, e, a, b, 38); R2(block, b, c, d, e, a, 39);
+	R3(block, a, b, c, d, e, 40); R3(block, e, a, b, c, d, 41); R3(block, d, e, a, b, c, 42); R3(block, c, d, e, a, b, 43);
+	R3(block, b, c, d, e, a, 44); R3(block, a, b, c, d, e, 45); R3(block, e, a, b, c, d, 46); R3(block, d, e, a, b, c, 47);
+	R3(block, c, d, e, a, b, 48); R3(block, b, c, d, e, a, 49); R3(block, a, b, c, d, e, 50); R3(block, e, a, b, c, d, 51);
+	R3(block, d, e, a, b, c, 52); R3(block, c, d, e, a, b, 53); R3(block, b, c, d, e, a, 54); R3(block, a, b, c, d, e, 55);
+	R3(block, e, a, b, c, d, 56); R3(block, d, e, a, b, c, 57); R3(block, c, d, e, a, b, 58); R3(block, b, c, d, e, a, 59);
+	R4(block, a, b, c, d, e, 60); R4(block, e, a, b, c, d, 61); R4(block, d, e, a, b, c, 62); R4(block, c, d, e, a, b, 63);
+	R4(block, b, c, d, e, a, 64); R4(block, a, b, c, d, e, 65); R4(block, e, a, b, c, d, 66); R4(block, d, e, a, b, c, 67);
+	R4(block, c, d, e, a, b, 68); R4(block, b, c, d, e, a, 69); R4(block, a, b, c, d, e, 70); R4(block, e, a, b, c, d, 71);
+	R4(block, d, e, a, b, c, 72); R4(block, c, d, e, a, b, 73); R4(block, b, c, d, e, a, 74); R4(block, a, b, c, d, e, 75);
+	R4(block, e, a, b, c, d, 76); R4(block, d, e, a, b, c, 77); R4(block, c, d, e, a, b, 78); R4(block, b, c, d, e, a, 79);
+	/* Add the working vars back into context.state[] */
+	state[0] += a;
+	state[1] += b;
+	state[2] += c;
+	state[3] += d;
+	state[4] += e;
+	/* Wipe variables */
+	a = b = c = d = e = 0;
+}
+
+/* SHA1Init - Initialize new context */
+
+void SHA1Init(SHA1_CTX *context)
+{
+	/* SHA1 initialization constants */
+	context->state[0] = 0x67452301;
+	context->state[1] = 0xEFCDAB89;
+	context->state[2] = 0x98BADCFE;
+	context->state[3] = 0x10325476;
+	context->state[4] = 0xC3D2E1F0;
+	context->count[0] = context->count[1] = 0;
+}
+
+/* Run your data through this. */
+
+void SHA1Update(SHA1_CTX *context, const unsigned char *data, uint32 len)
+{
+	uint32 i, j;
+
+	j = (context->count[0] >> 3) & 63;
+	if ((context->count[0] += len << 3) < (len << 3))
+		++context->count[1];
+	context->count[1] += len >> 29;
+	if (j + len > 63)
+	{
+		memcpy(&context->buffer[j], data, (i = 64 - j));
+		SHA1Transform(context->state, context->buffer);
+		for (; i + 63 < len; i += 64)
+			SHA1Transform(context->state, &data[i]);
+		j = 0;
+	}
+	else
+		i = 0;
+	memcpy(&context->buffer[j], &data[i], len - i);
+}
+
+/* Add padding and return the message digest. */
+
+void SHA1Final(unsigned char digest[21], SHA1_CTX *context)
+{
+	uint32 i;
+	unsigned char finalcount[8];
+
+	for (i = 0; i < 8; ++i)
+		finalcount[i] = static_cast<unsigned char>((context->count[i >= 4 ? 0 : 1] >> ((3 - (i & 3)) * 8)) & 255); /* Endian independent */
+	SHA1Update(context, reinterpret_cast<const unsigned char *>("\200"), 1);
+	while ((context->count[0] & 504) != 448)
+		SHA1Update(context, reinterpret_cast<const unsigned char *>("\0"), 1);
+	SHA1Update(context, finalcount, 8); /* Should cause a SHA1Transform() */
+	for (i = 0; i < 20; ++i)
+		digest[i] = static_cast<unsigned char>((context->state[i>>2] >> ((3 - (i & 3)) * 8)) & 255);
+	/* Wipe variables */
+	i = 0;
+	memset(context->buffer, 0, 64);
+	memset(context->state, 0, 20);
+	memset(context->count, 0, 8);
+	memset(&finalcount, 0, 8);
+	SHA1Transform(context->state, context->buffer);
+}
+
+/*****************************************************************************/
+/*****************************************************************************/
+
+/* Module stuff. */
+
+class ESHA1 : public Module
+{
+ public:
+	ESHA1(const Anope::string &modname, const Anope::string &creator) : Module(modname, creator, ENCRYPTION)
+	{
+		this->SetAuthor("Anope");
+
+		Implementation i[] = { I_OnEncrypt, I_OnCheckAuthentication };
+		ModuleManager::Attach(i, this, sizeof(i) / sizeof(Implementation));
+	}
+
+	EventReturn OnEncrypt(const Anope::string &src, Anope::string &dest)
+	{
+		SHA1_CTX context;
+		char digest[21] = "";
+		Anope::string buf = "sha1:";
+
+		SHA1Init(&context);
+		SHA1Update(&context, reinterpret_cast<const unsigned char *>(src.c_str()), src.length());
+		SHA1Final(reinterpret_cast<unsigned char *>(digest), &context);
+
+		buf += Anope::Hex(digest, 20);
+		Log(LOG_DEBUG_2) << "(enc_sha1) hashed password from [" << src << "] to [" << buf << "]";
+		dest = buf;
+		return EVENT_ALLOW;
+	}
+
+	EventReturn OnCheckAuthentication(Command *c, CommandSource *source, const std::vector<Anope::string> &params, const Anope::string &account, const Anope::string &password)
+	{
+		NickAlias *na = findnick(account);
+		NickCore *nc = na ? na->nc : NULL;
+		if (na == NULL)
+			return EVENT_CONTINUE;
+
+		size_t pos = nc->pass.find(':');
+		if (pos == Anope::string::npos)
+			return EVENT_CONTINUE;
+		Anope::string hash_method(nc->pass.begin(), nc->pass.begin() + pos);
+		if (!hash_method.equals_cs("sha1"))
+			return EVENT_CONTINUE;
+
+		Anope::string buf;
+		this->OnEncrypt(password, buf);
+		if (nc->pass.equals_cs(buf))
+		{
+			if (ModuleManager::FindFirstOf(ENCRYPTION) != this)
+				enc_encrypt(password, nc->pass);
+			return EVENT_ALLOW;
+		}
+
+		return EVENT_CONTINUE;
+	}
+};
+
+MODULE_INIT(ESHA1)