X-Git-Url: https://git.sommitrealweird.co.uk/onak.git/blobdiff_plain/8e58a1769ce5e492dd68904dfc81b6e077fc2a3a..4179d4a97b3a242b14ed023c2c3e8935a6e3e1e4:/keydb_pg.c?ds=inline

diff --git a/keydb_pg.c b/keydb_pg.c
index d2a2a55..b09c692 100644
--- a/keydb_pg.c
+++ b/keydb_pg.c
@@ -25,7 +25,7 @@
 #include "keyindex.h"
 #include "keystructs.h"
 #include "mem.h"
-#include "onak_conf.h"
+#include "onak-conf.h"
 #include "parsekey.h"
 
 /**
@@ -44,9 +44,9 @@ static int keydb_fetchchar(void *fd, size_t count, unsigned char *c)
 /**
  *	keydb_putchar - Puts a char to a file.
  */
-static int keydb_putchar(void *fd, unsigned char c)
+static int keydb_putchar(void *fd, size_t count, unsigned char *c)
 {
-	return !(lo_write(dbconn, *(int *) fd, &c, sizeof(c)));
+	return !(lo_write(dbconn, *(int *) fd, c, count));
 }
 
 /**
@@ -87,10 +87,43 @@ void cleanupdb(void)
 	dbconn = NULL;
 }
 
+/**
+ *	starttrans - Start a transaction.
+ *
+ *	Start a transaction. Intended to be used if we're about to perform many
+ *	operations on the database to help speed it all up, or if we want
+ *	something to only succeed if all relevant operations are successful.
+ */
+bool starttrans(void)
+{
+	PGresult *result = NULL;
+	
+	result = PQexec(dbconn, "BEGIN");
+	PQclear(result);
+
+	return true;
+}
+
+/**
+ *	endtrans - End a transaction.
+ *
+ *	Ends a transaction.
+ */
+void endtrans(void)
+{
+	PGresult *result = NULL;
+
+	result = PQexec(dbconn, "COMMIT");
+	PQclear(result);
+
+	return;
+}
+
 /**
  *	fetch_key - Given a keyid fetch the key from storage.
  *	@keyid: The keyid to fetch.
  *	@publickey: A pointer to a structure to return the key in.
+ *	@intrans: If we're already in a transaction.
  *
  *	We use the hex representation of the keyid as the filename to fetch the
  *	key from. The key is stored in the file as a binary OpenPGP stream of
@@ -98,7 +131,7 @@ void cleanupdb(void)
  *	in and then parse_keys() to parse the packets into a publickey
  *	structure.
  */
-int fetch_key(uint64_t keyid, struct openpgp_publickey **publickey)
+int fetch_key(uint64_t keyid, struct openpgp_publickey **publickey, bool intrans)
 {
 	struct openpgp_packet_list *packets = NULL;
 	PGresult *result = NULL;
@@ -109,8 +142,10 @@ int fetch_key(uint64_t keyid, struct openpgp_publickey **publickey)
 	int numkeys = 0;
 	Oid key_oid;
 
-	result = PQexec(dbconn, "BEGIN");
-	PQclear(result);
+	if (!intrans) {
+		result = PQexec(dbconn, "BEGIN");
+		PQclear(result);
+	}
 	
 	if (keyid > 0xFFFFFFFF) {
 		snprintf(statement, 1023,
@@ -146,8 +181,10 @@ int fetch_key(uint64_t keyid, struct openpgp_publickey **publickey)
 
 	PQclear(result);
 
-	result = PQexec(dbconn, "COMMIT");
-	PQclear(result);
+	if (!intrans) {
+		result = PQexec(dbconn, "COMMIT");
+		PQclear(result);
+	}
 	return (numkeys);
 }
 
@@ -169,34 +206,22 @@ int fetch_key_text(const char *search, struct openpgp_publickey **publickey)
 	int i = 0;
 	int numkeys = 0;
 	Oid key_oid;
-	char *dodgychar = NULL;
+	char *newsearch = NULL;
 
 	result = PQexec(dbconn, "BEGIN");
 	PQclear(result);
 
-	/*
-	 * TODO: We really want to use PQescapeString, but this isn't supported
-	 * by the version of Postgresql in Debian Stable. Roll on Woody and for
-	 * now kludge it.
-	 */
-	dodgychar = strchr(search, '\'');
-	while (dodgychar != NULL) {
-		*dodgychar = ' ';
-		dodgychar = strchr(search, '\'');
-	}
-	dodgychar = strchr(search, '\\');
-	while (dodgychar != NULL) {
-		*dodgychar = ' ';
-		dodgychar = strchr(search, '\\');
-	}
-
-	
+	newsearch = malloc(strlen(search) * 2 + 1);
+	memset(newsearch, 0, strlen(search) * 2 + 1);
+	PQescapeString(newsearch, search, strlen(search));
 	snprintf(statement, 1023,
 			"SELECT DISTINCT onak_keys.keydata FROM onak_keys, "
 			"onak_uids WHERE onak_keys.keyid = onak_uids.keyid "
 			"AND onak_uids.uid LIKE '%%%s%%'",
-			search);
+			newsearch);
 	result = PQexec(dbconn, statement);
+	free(newsearch);
+	newsearch = NULL;
 
 	if (PQresultStatus(result) == PGRES_TUPLES_OK) {
 		numkeys = PQntuples(result);
@@ -228,13 +253,16 @@ int fetch_key_text(const char *search, struct openpgp_publickey **publickey)
 /**
  *	store_key - Takes a key and stores it.
  *	@publickey: A pointer to the public key to store.
+ *	@intrans: If we're already in a transaction.
+ *	@update: If true the key exists and should be updated.
  *
  *	Again we just use the hex representation of the keyid as the filename
  *	to store the key to. We flatten the public key to a list of OpenPGP
  *	packets and then use write_openpgp_stream() to write the stream out to
- *	the file.
+ *	the file. If update is true then we delete the old key first, otherwise we
+ *	trust that it doesn't exist.
  */
-int store_key(struct openpgp_publickey *publickey)
+int store_key(struct openpgp_publickey *publickey, bool intrans, bool update)
 {
 	struct openpgp_packet_list *packets = NULL;
 	struct openpgp_packet_list *list_end = NULL;
@@ -245,9 +273,13 @@ int store_key(struct openpgp_publickey *publickey)
 	int fd;
 	char **uids = NULL;
 	char *primary = NULL;
-	char *dodgychar = NULL;
+	char *safeuid = NULL;
 	int i;
 
+	if (!intrans) {
+		result = PQexec(dbconn, "BEGIN");
+		PQclear(result);
+	}
 
 	/*
 	 * Delete the key if we already have it.
@@ -257,10 +289,9 @@ int store_key(struct openpgp_publickey *publickey)
 	 * of difference though - the largest chunk of data is the keydata and
 	 * it definitely needs updated.
 	 */
-	delete_key(get_keyid(publickey));
-
-	result = PQexec(dbconn, "BEGIN");
-	PQclear(result);
+	if (update) {
+		delete_key(get_keyid(publickey), true);
+	}
 
 	next = publickey->next;
 	publickey->next = NULL;
@@ -292,30 +323,29 @@ int store_key(struct openpgp_publickey *publickey)
 	uids = keyuids(publickey, &primary);
 	if (uids != NULL) {
 		for (i = 0; uids[i] != NULL; i++) {
-			/*
-			 * TODO: We really want to use PQescapeString, but this
-			 * isn't supported by the version of Postgresql in
-			 * Debian Stable. Roll on Woody and for now kludge it.
-			 */
-			dodgychar = strchr(uids[i], '\'');
-			while (dodgychar != NULL) {
-				*dodgychar = ' ';
-				dodgychar = strchr(uids[i], '\'');
+			safeuid = malloc(strlen(uids[i]) * 2 + 1);
+			if (safeuid != NULL) {
+				memset(safeuid, 0, strlen(uids[i]) * 2 + 1);
+				PQescapeString(safeuid, uids[i],
+						strlen(uids[i]));
+
+				snprintf(statement, 1023,
+					"INSERT INTO onak_uids "
+					"(keyid, uid, pri) "
+					"VALUES	('%llX', '%s', '%c')",
+					get_keyid(publickey),
+					safeuid,
+					(uids[i] == primary) ? 't' : 'f');
+				result = PQexec(dbconn, statement);
+
+				free(safeuid);
+				safeuid = NULL;
 			}
-			dodgychar = strchr(uids[i], '\\');
-				while (dodgychar != NULL) {
-				*dodgychar = ' ';
-				dodgychar = strchr(uids[i], '\\');
+			if (uids[i] != NULL) {
+				free(uids[i]);
+				uids[i] = NULL;
 			}
 
-			snprintf(statement, 1023,
-				"INSERT INTO onak_uids (keyid, uid, pri) "
-				"VALUES	('%llX', '%s', '%c')",
-				get_keyid(publickey),
-				uids[i],
-				(uids[i] == primary) ? 't' : 'f');
-			result = PQexec(dbconn, statement);
-
 			if (PQresultStatus(result) != PGRES_COMMAND_OK) {
 				fprintf(stderr, "Problem storing key in DB.\n");
 				fprintf(stderr, "%s\n",
@@ -326,10 +356,14 @@ int store_key(struct openpgp_publickey *publickey)
 			 */
 			PQclear(result);
 		}
+		free(uids);
+		uids = NULL;
 	}
 
-	result = PQexec(dbconn, "COMMIT");
-	PQclear(result);
+	if (!intrans) {
+		result = PQexec(dbconn, "COMMIT");
+		PQclear(result);
+	}
 	
 	return 0;
 }
@@ -337,11 +371,12 @@ int store_key(struct openpgp_publickey *publickey)
 /**
  *	delete_key - Given a keyid delete the key from storage.
  *	@keyid: The keyid to delete.
+ *	@intrans: If we're already in a transaction.
  *
  *	This function deletes a public key from whatever storage mechanism we
  *	are using. Returns 0 if the key existed.
  */
-int delete_key(uint64_t keyid)
+int delete_key(uint64_t keyid, bool intrans)
 {
 	PGresult *result = NULL;
 	char *oids = NULL;
@@ -350,8 +385,10 @@ int delete_key(uint64_t keyid)
 	int i;
 	Oid key_oid;
 
-	result = PQexec(dbconn, "BEGIN");
-	PQclear(result);
+	if (!intrans) {
+		result = PQexec(dbconn, "BEGIN");
+		PQclear(result);
+	}
 	
 	snprintf(statement, 1023,
 			"SELECT keydata FROM onak_keys WHERE keyid = '%llX'",
@@ -386,8 +423,10 @@ int delete_key(uint64_t keyid)
 
 	PQclear(result);
 
-	result = PQexec(dbconn, "COMMIT");
-	PQclear(result);
+	if (!intrans) {
+		result = PQexec(dbconn, "COMMIT");
+		PQclear(result);
+	}
 	return (found);
 }
 
@@ -430,4 +469,5 @@ char *keyid2uid(uint64_t keyid)
  * Include the basic keydb routines.
  */
 #define NEED_GETKEYSIGS 1
+#define NEED_GETFULLKEYID 1
 #include "keydb.c"