/*
- * Copyright (C) 2012 Thadeu Lima de Souza Cascardo <cascardo@minaslivre.org>
+ * Copyright (C) 2012-2013 Thadeu Lima de Souza Cascardo <cascardo@minaslivre.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
#include <netdb.h>
#include <gnutls/gnutls.h>
#include <zlib.h>
+#include "decfile.h"
+#include "rnet_message.h"
+#include "rnet_encode.h"
static void * get_creds(char *certfile)
{
free(*out);
return -1;
}
- *olen = zstrm.avail_out + 6;
+ *olen = zstrm.total_out + 6;
(*out)[0] = 0x1;
- (*out)[1] = (zstrm.avail_out >> 8);
- (*out)[2] = (zstrm.avail_out & 0xff);
+ (*out)[1] = (zstrm.total_out >> 8);
+ (*out)[2] = (zstrm.total_out & 0xff);
(*out)[3] = (len >> 8);
(*out)[4] = (len & 0xff);
(*out)[5] = 0x1;
zstrm.opaque = Z_NULL;
if ((r = inflateInit(&zstrm)) != Z_OK)
return -1;
- *olen = (buffer[3] << 8 & buffer[4]);
+ *olen = (buffer[3] << 8 | buffer[4]);
*out = malloc(*olen);
if (!out) {
inflateEnd(&zstrm);
return 0;
}
+static void usage(void)
+{
+ fprintf(stderr, "rnetclient [filename]\n");
+ exit(1);
+}
+
+static int rnet_send(gnutls_session_t session, char *buffer, size_t len)
+{
+ char *out;
+ size_t olen;
+ deflateRecord(buffer, len, &out, &olen);
+ gnutls_record_send(session, out, olen);
+ free(out);
+ return 0;
+}
+
+static int rnet_recv(gnutls_session_t session, struct rnet_message **message)
+{
+ char *out;
+ size_t olen;
+ int r;
+ char *buffer;
+ size_t len;
+ rnet_message_expand(message, 6);
+ buffer = (*message)->buffer;
+ r = gnutls_record_recv(session, buffer, 6);
+ if (buffer[0] == 0x01) {
+ len = (buffer[1] << 8 | buffer[2]);
+ rnet_message_expand(message, len);
+ buffer = (*message)->buffer + 6;
+ r = gnutls_record_recv(session, buffer, len);
+ inflateRecord(buffer - 6, len + 6, &out, &olen);
+ rnet_message_del(*message);
+ *message = NULL;
+ rnet_message_expand(message, olen);
+ memcpy((*message)->buffer, out, olen);
+ (*message)->len = olen;
+ free(out);
+ } else {
+ len = (buffer[1] << 8 | buffer[2]);
+ rnet_message_expand(message, len - 1);
+ buffer = (*message)->buffer + 6;
+ r = gnutls_record_recv(session, buffer, len - 1);
+ (*message)->len = len + 4;
+ rnet_message_strip(*message, 4);
+ }
+ return 0;
+}
+
+static void save_rec_file(char *cpf, char *buffer, int len)
+{
+ int fd;
+ char *filename;
+ char *home, *tmpdir;
+ mode_t mask;
+ size_t fnlen;
+ int r;
+ home = getenv("HOME");
+ if (!home) {
+ tmpdir = getenv("TMPDIR");
+ if (!tmpdir)
+ tmpdir = "/tmp";
+ home = tmpdir;
+ }
+ fnlen = strlen(home) + strlen(cpf) + 13;
+ filename = malloc(fnlen);
+ snprintf(filename, fnlen, "%s/%s.REC.XXXXXX", home, cpf);
+ mask = umask(0177);
+ fd = mkstemp(filename);
+ if (fd < 0) {
+ fprintf(stderr, "Could not create receipt file: %s\n",
+ strerror(errno));
+ goto out;
+ }
+ r = write(fd, buffer, len);
+ if (r != len) {
+ fprintf(stderr, "Could not write to receipt file%s%s\n",
+ r < 0 ? ": " : ".",
+ r < 0 ? strerror(errno) : "");
+ goto out;
+ }
+ fprintf(stderr, "Wrote the receipt to %s.\n", filename);
+out:
+ close(fd);
+ free(filename);
+ umask(mask);
+}
+
+static void handle_response_text_and_file(char *cpf, struct rnet_message *message)
+{
+ char *value;
+ int vlen;
+ if (!rnet_message_parse(message, "texto", &value, &vlen))
+ fprintf(stderr, "%.*s\n", vlen, value);
+ if (!rnet_message_parse(message, "arquivo", &value, &vlen))
+ save_rec_file(cpf, value, vlen);
+}
+
+static void handle_response_already_found(char *cpf, struct rnet_message *message)
+{
+ handle_response_text_and_file(cpf, message);
+}
+
+static void handle_response_error(struct rnet_message *message)
+{
+ char *value;
+ int vlen;
+ if (!rnet_message_parse(message, "texto", &value, &vlen))
+ fprintf(stderr, "%.*s\n", vlen, value);
+ fprintf(stderr, "Error transmiting DEC file.\n");
+}
+
int main(int argc, char **argv)
{
int c;
int r;
- char buffer[2048];
- char *out;
- size_t olen;
+ struct rnet_decfile *decfile;
+ struct rnet_message *message = NULL;
gnutls_session_t session;
+ int finish = 0;
+ char *cpf;
+
+ if (argc < 2) {
+ usage();
+ }
+
+ decfile = rnet_decfile_open(argv[1]);
+ if (!decfile) {
+ fprintf(stderr, "could not parse %s: %s\n", argv[1], strerror(errno));
+ exit(1);
+ }
+
+ cpf = rnet_decfile_get_header_field(decfile, "cpf");
+
gnutls_global_init();
+
session_new(&session);
r = connect_rnet(&c);
if (r) {
if ((r = gnutls_handshake(session)) < 0)
fprintf(stderr, "error in handshake: %s\n",
gnutls_strerror(r));
- else
- fprintf(stderr, "handshake ok\n");
- r = read(0, buffer, sizeof(buffer));
- deflateRecord(buffer, r, &out, &olen);
- gnutls_record_send(session, out, olen);
- free(out);
- while ((r = gnutls_record_recv(session, buffer, sizeof(buffer))) > 0)
- write(1, buffer, r);
+
+ rnet_encode(decfile, &message);
+ rnet_send(session, message->buffer, message->len);
+ rnet_message_del(message);
+
+ message = NULL;
+ r = rnet_recv(session, &message);
+ if (r || !message || message->len == 0) {
+ fprintf(stderr, "error when receiving response\n");
+ goto out;
+ }
+ switch (message->buffer[0]) {
+ case 1: /* go ahead */
+ handle_response_text_and_file(cpf, message);
+ break;
+ case 3: /* error */
+ handle_response_error(message);
+ finish = 1;
+ break;
+ case 4:
+ handle_response_already_found(cpf, message);
+ finish = 1;
+ break;
+ case 2:
+ case 5:
+ handle_response_text_and_file(cpf, message);
+ finish = 1;
+ break;
+ }
+ rnet_message_del(message);
+
+ if (finish)
+ goto out;
+
+ message = rnet_decfile_get_file(decfile);
+ rnet_send(session, message->buffer, message->len);
+
+ message = NULL;
+ r = rnet_recv(session, &message);
+ if (r || !message || message->len == 0) {
+ fprintf(stderr, "error when receiving response\n");
+ goto out;
+ }
+ switch (message->buffer[0]) {
+ case 3: /* error */
+ handle_response_error(message);
+ break;
+ case 2:
+ case 4:
+ case 5:
+ case 1:
+ handle_response_text_and_file(cpf, message);
+ break;
+ }
+
+out:
+ gnutls_bye(session, GNUTLS_SHUT_RDWR);
close(c);
+ rnet_decfile_close(decfile);
gnutls_global_deinit();
+
return 0;
}
projects / cascardo / libreceita.git / blobdiff