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-rw-r--r--libopkg/opkg_download.c346
1 files changed, 346 insertions, 0 deletions
diff --git a/libopkg/opkg_download.c b/libopkg/opkg_download.c
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+++ b/libopkg/opkg_download.c
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+/* vi: set noexpandtab sw=4 sts=4: */
+/* opkg_download.c - the itsy package management system
+
+ Carl D. Worth
+
+ Copyright (C) 2001 University of Southern California
+ Copyright (C) 2008 OpenMoko Inc
+
+ 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 the Free Software Foundation; either version 2, or (at
+ your option) any later version.
+
+ This program is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ General Public License for more details.
+*/
+#include "config.h"
+#include <curl/curl.h>
+#ifdef HAVE_GPGME
+#include <gpgme.h>
+#endif
+
+#include "opkg.h"
+#include "opkg_download.h"
+#include "opkg_message.h"
+#include "opkg_state.h"
+
+#include "sprintf_alloc.h"
+#include "xsystem.h"
+#include "file_util.h"
+#include "str_util.h"
+
+#ifdef OPKG_LIB
+#include "libopkg.h"
+opkg_download_progress_callback opkg_cb_download_progress = NULL;
+#endif
+
+int
+curl_progress_func (char* url,
+ double t, /* dltotal */
+ double d, /* dlnow */
+ double ultotal,
+ double ulnow)
+{
+ int i;
+ int p = (t) ? d*100/t : 0;
+
+#ifdef OPKG_LIB
+ if (opkg_cb_download_progress)
+ {
+ static int prev = -1;
+
+ /* don't report the same percentage multiple times
+ * (this can occur due to rounding) */
+ if (prev == p)
+ return 0;
+ prev = p;
+
+ opkg_cb_download_progress (p, url);
+ return 0;
+ }
+#endif
+
+ /* skip progress bar if we haven't done started yet
+ * this prevents drawing the progress bar if we receive an error such as
+ * file not found */
+ if (t == 0)
+ return 0;
+
+ printf ("\r%3d%% |", p);
+ for (i = 1; i < 73; i++)
+ {
+ if (i <= p * 0.73)
+ printf ("=");
+ else
+ printf ("-");
+ }
+ printf ("|");
+ fflush(stdout);
+ return 0;
+}
+
+int opkg_download(opkg_conf_t *conf, const char *src, const char *dest_file_name)
+{
+ int err = 0;
+
+ char *src_basec = strdup(src);
+ char *src_base = basename(src_basec);
+ char *tmp_file_location;
+
+ opkg_message(conf,OPKG_NOTICE,"Downloading %s\n", src);
+
+ fflush(stdout);
+
+ if (str_starts_with(src, "file:")) {
+ int ret;
+ const char *file_src = src + 5;
+ opkg_message(conf,OPKG_INFO,"Copying %s to %s...", file_src, dest_file_name);
+ ret = file_copy(src + 5, dest_file_name);
+ opkg_message(conf,OPKG_INFO,"Done\n");
+ return ret;
+ }
+
+ sprintf_alloc(&tmp_file_location, "%s/%s", conf->tmp_dir, src_base);
+ err = unlink(tmp_file_location);
+ if (err && errno != ENOENT) {
+ opkg_message(conf,OPKG_ERROR, "%s: ERROR: failed to unlink %s: %s\n",
+ __FUNCTION__, tmp_file_location, strerror(errno));
+ free(tmp_file_location);
+ return errno;
+ }
+
+ if (conf->http_proxy) {
+ opkg_message(conf,OPKG_DEBUG,"Setting environment variable: http_proxy = %s\n", conf->http_proxy);
+ setenv("http_proxy", conf->http_proxy, 1);
+ }
+ if (conf->ftp_proxy) {
+ opkg_message(conf,OPKG_DEBUG,"Setting environment variable: ftp_proxy = %s\n", conf->ftp_proxy);
+ setenv("ftp_proxy", conf->ftp_proxy, 1);
+ }
+ if (conf->no_proxy) {
+ opkg_message(conf,OPKG_DEBUG,"Setting environment variable: no_proxy = %s\n", conf->no_proxy);
+ setenv("no_proxy", conf->no_proxy, 1);
+ }
+
+ /* XXX: BUG rewrite to use execvp or else busybox's internal wget -Jamey 7/23/2002 */
+#if 0
+ sprintf_alloc(&cmd, "wget --passive-ftp %s %s%s %s%s %s -P %s %s",
+ (conf->http_proxy || conf->ftp_proxy) ? "--proxy=on" : "",
+ conf->proxy_user ? "--proxy-user=" : "",
+ conf->proxy_user ? conf->proxy_user : "",
+ conf->proxy_passwd ? "--proxy-passwd=" : "",
+ conf->proxy_passwd ? conf->proxy_passwd : "",
+ conf->verbose_wget ? "" : "-q",
+ conf->tmp_dir,
+ src);
+ err = xsystem(cmd);
+ if (err) {
+ if (err != -1) {
+ opkg_message(conf,OPKG_ERROR, "%s: ERROR: Command failed with return value %d: `%s'\n",
+ __FUNCTION__, err, cmd);
+ }
+ unlink(tmp_file_location);
+ free(tmp_file_location);
+ free(src_basec);
+ free(cmd);
+ return EINVAL;
+ }
+ free(cmd);
+#endif
+ CURL *curl;
+ CURLcode res;
+ FILE * file = fopen (tmp_file_location, "w");
+
+ curl = curl_easy_init ();
+ if (curl)
+ {
+ curl_easy_setopt (curl, CURLOPT_URL, src);
+ curl_easy_setopt (curl, CURLOPT_WRITEDATA, file);
+ curl_easy_setopt (curl, CURLOPT_NOPROGRESS, 0);
+ curl_easy_setopt (curl, CURLOPT_PROGRESSDATA, src);
+ curl_easy_setopt (curl, CURLOPT_PROGRESSFUNCTION, curl_progress_func);
+ curl_easy_setopt (curl, CURLOPT_FAILONERROR, 1);
+ if (conf->http_proxy || conf->ftp_proxy)
+ {
+ char *userpwd;
+ sprintf_alloc (&userpwd, "%s:%s", conf->proxy_user,
+ conf->proxy_passwd);
+ curl_easy_setopt(curl, CURLOPT_PROXYUSERPWD, userpwd);
+ free (userpwd);
+ }
+ res = curl_easy_perform (curl);
+ curl_easy_cleanup (curl);
+ fclose (file);
+ if (res)
+ {
+ long error_code;
+ curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE, &error_code);
+ opkg_message(conf, OPKG_ERROR, "Failed to download %s, error %d\n", src, error_code);
+ return res;
+ }
+
+ }
+ else
+ return -1;
+
+ printf ("\n");
+
+ err = file_move(tmp_file_location, dest_file_name);
+
+ free(tmp_file_location);
+ free(src_basec);
+
+ if (err) {
+ return err;
+ }
+
+ return 0;
+}
+
+int opkg_download_pkg(opkg_conf_t *conf, pkg_t *pkg, const char *dir)
+{
+ int err;
+ char *url;
+ char *pkgid;
+
+ if (pkg->src == NULL) {
+ opkg_message(conf,OPKG_ERROR, "ERROR: Package %s (parent %s) is not available from any configured src.\n",
+ pkg->name, pkg->parent->name);
+ return -1;
+ }
+
+ sprintf_alloc (&pkgid, "%s;%s;%s;", pkg->name, pkg->version, pkg->architecture);
+ opkg_set_current_state (OPKG_STATE_DOWNLOADING_PKG, pkgid);
+ free (pkgid);
+
+ sprintf_alloc(&url, "%s/%s", pkg->src->value, pkg->filename);
+
+ /* XXX: BUG: The pkg->filename might be something like
+ "../../foo.ipk". While this is correct, and exactly what we
+ want to use to construct url above, here we actually need to
+ use just the filename part, without any directory. */
+ sprintf_alloc(&pkg->local_filename, "%s/%s", dir, pkg->filename);
+
+ err = opkg_download(conf, url, pkg->local_filename);
+ free(url);
+
+ opkg_set_current_state (OPKG_STATE_NONE, NULL);
+ return err;
+}
+
+/*
+ * Downloads file from url, installs in package database, return package name.
+ */
+int opkg_prepare_url_for_install(opkg_conf_t *conf, const char *url, char **namep)
+{
+ int err = 0;
+ pkg_t *pkg;
+ pkg = pkg_new();
+ if (pkg == NULL)
+ return ENOMEM;
+
+ if (str_starts_with(url, "http://")
+ || str_starts_with(url, "ftp://")) {
+ char *tmp_file;
+ char *file_basec = strdup(url);
+ char *file_base = basename(file_basec);
+
+ sprintf_alloc(&tmp_file, "%s/%s", conf->tmp_dir, file_base);
+ err = opkg_download(conf, url, tmp_file);
+ if (err)
+ return err;
+
+ err = pkg_init_from_file(pkg, tmp_file);
+ if (err)
+ return err;
+ pkg->local_filename = strdup(tmp_file);
+
+ free(tmp_file);
+ free(file_basec);
+
+ } else if (strcmp(&url[strlen(url) - 4], OPKG_PKG_EXTENSION) == 0
+ || strcmp(&url[strlen(url) - 4], DPKG_PKG_EXTENSION) == 0) {
+
+ err = pkg_init_from_file(pkg, url);
+ if (err)
+ return err;
+ pkg->local_filename = strdup(url);
+ opkg_message(conf, OPKG_DEBUG2, "Package %s provided by hand (%s).\n", pkg->name,pkg->local_filename);
+ pkg->provided_by_hand = 1;
+
+ } else {
+ pkg_deinit(pkg);
+ free(pkg);
+ return 0;
+ }
+
+ if (!pkg->architecture) {
+ opkg_message(conf, OPKG_ERROR, "Package %s has no Architecture defined.\n", pkg->name);
+ return -EINVAL;
+ }
+
+ pkg->dest = conf->default_dest;
+ pkg->state_want = SW_INSTALL;
+ pkg->state_flag |= SF_PREFER;
+ pkg = hash_insert_pkg(&conf->pkg_hash, pkg, 1,conf);
+ if ( pkg == NULL ){
+ fprintf(stderr, "%s : This should never happen. Report this Bug in bugzilla please \n ",__FUNCTION__);
+ return 0;
+ }
+ if (namep) {
+ *namep = strdup(pkg->name);
+ }
+ return 0;
+}
+
+int
+opkg_verify_file (char *text_file, char *sig_file)
+{
+#ifdef HAVE_GPGME
+ int status = -1;
+ gpgme_ctx_t ctx;
+ gpgme_data_t sig, text;
+ gpgme_error_t err = -1;
+ gpgme_verify_result_t result;
+ gpgme_signature_t s;
+
+ err = gpgme_new (&ctx);
+
+ if (err)
+ return -1;
+
+ err = gpgme_data_new_from_file (&sig, sig_file, 1);
+ if (err)
+ return -1;
+
+ err = gpgme_data_new_from_file (&text, text_file, 1);
+ if (err)
+ return -1;
+
+ err = gpgme_op_verify (ctx, sig, text, NULL);
+
+ result = gpgme_op_verify_result (ctx);
+
+ /* see if any of the signitures matched */
+ s = result->signatures;
+ while (s)
+ {
+ status = gpg_err_code (s->status);
+ if (status == GPG_ERR_NO_ERROR)
+ break;
+ s = s->next;
+ }
+
+ gpgme_data_release (sig);
+ gpgme_data_release (text);
+ gpgme_release (ctx);
+
+ return status;
+#else
+ printf ("Signature check skipped because GPG support was not enabled in this build\n");
+ return 0;
+#endif
+}