X-Git-Url: https://git.sommitrealweird.co.uk/onak.git/blobdiff_plain/f0822345a23524444df900e19b58c0b930e76cbf..5d25774c5cd9f80709f852f79bce26d582fad360:/hashquery.c?ds=inline

diff --git a/hashquery.c b/hashquery.c
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+++ b/hashquery.c
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+/*
+ * hashquery.c - CGI to handle SKS style /pks/hashquery requests
+ *
+ * Copyright 2011 Jonathan McDowell <noodles@earth.li>
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdint.h>
+#include <unistd.h>
+
+#include "charfuncs.h"
+#include "cleanup.h"
+#include "keyid.h"
+#include "log.h"
+#include "marshal.h"
+#include "mem.h"
+#include "onak-conf.h"
+
+void doerror(char *error)
+{
+	printf("Content-Type: text/plain\n\n");
+	printf("%s", error);
+	cleanuplogthing();
+	cleanupconfig();
+	exit(EXIT_FAILURE);
+}
+
+int main(int argc, char *argv[])
+{
+	char *request_method;
+	int count, found, i;
+	uint8_t **hashes;
+	struct buffer_ctx cgipostbuf;
+	struct openpgp_publickey **keys;
+
+	readconfig(NULL);
+	initlogthing("hashquery", config.logfile);
+
+	request_method = getenv("REQUEST_METHOD");
+	if (request_method == NULL || strcmp(request_method, "POST") != 0) {
+		doerror("hashquery must be a HTTP POST request.\n");
+	}
+
+	if (!(cgipostbuf.size = atoi(getenv("CONTENT_LENGTH")))) {
+		doerror("Must provide a content length.\n");
+	}
+
+	cgipostbuf.offset = 0;
+	cgipostbuf.buffer = malloc(cgipostbuf.size);
+	if (cgipostbuf.buffer == NULL) {
+		doerror("Couldn't allocate memory for query content.\n");
+	}
+
+	if (!fread(cgipostbuf.buffer, cgipostbuf.size, 1, stdin)) {
+		doerror("Couldn't read query.\n");
+	}
+
+	hashes = (uint8_t **) unmarshal_array(buffer_fetchchar, &cgipostbuf,
+			(void * (*)(int (*)(void *, size_t,  void *), void *))
+				unmarshal_skshash, &count);
+
+	free(cgipostbuf.buffer);
+	cgipostbuf.buffer = NULL;
+	cgipostbuf.size = cgipostbuf.offset = 0;
+
+	if (hashes == NULL) {
+		doerror("No hashes supplied.\n");
+	}
+
+	found = 0;
+	keys = calloc(sizeof(struct openpgp_publickey *), count);
+	if (keys == NULL) {
+		doerror("Couldn't allocate memory for reply.\n");
+	}
+
+	if (config.dbbackend->fetch_key_skshash == NULL) {
+		doerror("Can't fetch by skshash with this backend.");
+	}
+
+	catchsignals();
+	config.dbbackend->initdb(false);
+
+	for (i = 0; i < count; i++) {
+		config.dbbackend->fetch_key_skshash(
+				(struct skshash *) hashes[i], &keys[found]);
+		if (keys[found] != NULL) {
+			found++;
+		}
+		free(hashes[i]);
+		hashes[i] = NULL;
+	}
+	free(hashes);
+	hashes = NULL;
+
+	config.dbbackend->cleanupdb();
+
+	puts("Content-Type: pgp/keys\n");
+	marshal_array(stdout_putchar, NULL,
+			(void (*)(int (*)(void *, size_t,  void *),
+					void *, const void *))
+				marshal_publickey, (void **) keys, found);
+	printf("\n");
+
+	for (i = 0; i < found; i++) {
+		free_publickey(keys[i]);
+	}
+	free(keys);
+
+	cleanuplogthing();
+	cleanupconfig();
+}