X-Git-Url: https://git.sommitrealweird.co.uk/onak.git/blobdiff_plain/e02c731dfbb288c736f2cd09a9b6df0507c59ddd..fb43c9ffd09b3f5e8fd35651daed59839221fe36:/keydb.c

diff --git a/keydb.c b/keydb.c
index 3ebb056..7d33108 100644
--- a/keydb.c
+++ b/keydb.c
@@ -3,7 +3,7 @@
  *
  * Jonathan McDowell <noodles@earth.li>
  *
- * Copyright 2002 Project Purple
+ * Copyright 2002-2004 Project Purple
  */
 
 /**
@@ -16,12 +16,15 @@
 
 #include <stdio.h>
 
+#include "decodekey.h"
+#include "hash.h"
 #include "keydb.h"
 #include "keyid.h"
-#include "keyindex.h"
 #include "keystructs.h"
 #include "mem.h"
+#include "merge.h"
 #include "parsekey.h"
+#include "sendsync.h"
 
 #ifdef NEED_KEYID2UID
 /**
@@ -32,7 +35,7 @@ char *keyid2uid(uint64_t keyid)
 {
 	struct openpgp_publickey *publickey = NULL;
 	struct openpgp_signedpacket_list *curuid = NULL;
-	static char buf[1024];
+	char buf[1024];
 
 	buf[0]=0;
 	if (fetch_key(keyid, &publickey, false) && publickey != NULL) {
@@ -51,7 +54,7 @@ char *keyid2uid(uint64_t keyid)
 	if (buf[0] == 0) {
 		return NULL;
 	} else {
-		return buf;
+		return strdup(buf);
 	}
 }
 #endif
@@ -60,11 +63,13 @@ char *keyid2uid(uint64_t keyid)
 /**
  *	getkeysigs - Gets a linked list of the signatures on a key.
  *	@keyid: The keyid to get the sigs for.
+ *	@revoked: Is the key revoked?
  *
  *	This function gets the list of signatures on a key. Used for key 
- *	indexing and doing stats bits.
+ *	indexing and doing stats bits. If revoked is non-NULL then if the key
+ *	is revoked it's set to true.
  */
-struct ll *getkeysigs(uint64_t keyid)
+struct ll *getkeysigs(uint64_t keyid, bool *revoked)
 {
 	struct ll *sigs = NULL;
 	struct openpgp_signedpacket_list *uids = NULL;
@@ -76,6 +81,9 @@ struct ll *getkeysigs(uint64_t keyid)
 		for (uids = publickey->uids; uids != NULL; uids = uids->next) {
 			sigs = keysigs(sigs, uids->sigs);
 		}
+		if (revoked != NULL) {
+			*revoked = publickey->revoked;
+		}
 		free_publickey(publickey);
 	}
 
@@ -83,24 +91,136 @@ struct ll *getkeysigs(uint64_t keyid)
 }
 #endif
 
+/**
+ *	cached_getkeysigs - Gets the signatures on a key.
+ *	@keyid: The key we want the signatures for.
+ *	
+ *	This function gets the signatures on a key. It's the same as the
+ *	getkeysigs function above except we use the hash module to cache the
+ *	data so if we need it again it's already loaded.
+ */
+struct ll *cached_getkeysigs(uint64_t keyid)
+{
+	struct stats_key *key = NULL;
+	struct stats_key *signedkey = NULL;
+	struct ll        *cursig = NULL;
+	bool		  revoked = false;
+
+	if (keyid == 0)  {
+		return NULL;
+	}
+
+	key = createandaddtohash(keyid);
+
+	if (key->gotsigs == false) {
+		key->sigs = getkeysigs(key->keyid, &revoked);
+		key->revoked = revoked;
+		for (cursig = key->sigs; cursig != NULL;
+				cursig = cursig->next) {
+			signedkey = (struct stats_key *) cursig->object;
+			signedkey->signs = lladd(signedkey->signs, key);
+		}
+		key->gotsigs = true;
+	}
+
+	return key->sigs;
+}
+
 #ifdef NEED_GETFULLKEYID
 /**
  *	getfullkeyid - Maps a 32bit key id to a 64bit one.
  *	@keyid: The 32bit keyid.
  *
  *	This function maps a 32bit key id to the full 64bit one. It returns the
- *	full keyid.
+ *	full keyid. If the key isn't found a keyid of 0 is returned.
  */
 uint64_t getfullkeyid(uint64_t keyid)
 {
 	struct openpgp_publickey *publickey = NULL;
 
-	if (keyid < 0x100000000) {
+	if (keyid < 0x100000000LL) {
 		fetch_key(keyid, &publickey, false);
-		keyid = get_keyid(publickey);
-		free_publickey(publickey);
+		if (publickey != NULL) {
+			keyid = get_keyid(publickey);
+			free_publickey(publickey);
+			publickey = NULL;
+		} else {
+			keyid = 0;
+		}
 	}
 	
 	return keyid;
 }
 #endif
+
+#ifdef NEED_UPDATEKEYS
+/**
+ *	update_keys - Takes a list of public keys and updates them in the DB.
+ *	@keys: The keys to update in the DB.
+ *	@sendsync: Should we send a sync mail to our peers.
+ *
+ *	Takes a list of keys and adds them to the database, merging them with
+ *	the key in the database if it's already present there. The key list is
+ *	update to contain the minimum set of updates required to get from what
+ *	we had before to what we have now (ie the set of data that was added to
+ *	the DB). Returns the number of entirely new keys added.
+ */
+int update_keys(struct openpgp_publickey **keys, bool sendsync)
+{
+	struct openpgp_publickey *curkey = NULL;
+	struct openpgp_publickey *oldkey = NULL;
+	struct openpgp_publickey *prev = NULL;
+	int newkeys = 0;
+	bool intrans;
+
+	for (curkey = *keys; curkey != NULL; curkey = curkey->next) {
+		intrans = starttrans();
+		logthing(LOGTHING_INFO,
+			"Fetching key 0x%llX, result: %d",
+			get_keyid(curkey),
+			fetch_key(get_keyid(curkey), &oldkey, intrans));
+
+		/*
+		 * If we already have the key stored in the DB then merge it
+		 * with the new one that's been supplied. Otherwise the key
+		 * we've just got is the one that goes in the DB and also the
+		 * one that we send out.
+		 */
+		if (oldkey != NULL) {
+			merge_keys(oldkey, curkey);
+			if (curkey->sigs == NULL &&
+					curkey->uids == NULL &&
+					curkey->subkeys == NULL) {
+				if (prev == NULL) {
+					*keys = curkey->next;
+				} else {
+					prev->next = curkey->next;
+					curkey->next = NULL;
+					free_publickey(curkey);
+					curkey = prev;
+				}
+			} else {
+				prev = curkey;
+				logthing(LOGTHING_INFO,
+					"Merged key; storing updated key.");
+				store_key(oldkey, intrans, true);
+			}
+			free_publickey(oldkey);
+			oldkey = NULL;
+		} else {
+			logthing(LOGTHING_INFO,
+				"Storing completely new key.");
+			store_key(curkey, intrans, false);
+			newkeys++;
+		}
+		endtrans();
+		intrans = false;
+	}
+
+	if (sendsync && keys != NULL) {
+		sendkeysync(*keys);
+	}
+
+	return newkeys;
+}
+#endif /* NEED_UPDATEKEYS */