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/*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at https://mozilla.org/MPL/2.0/.
*/
#include <cstdint>
#include <sqlite3.h>
#include <string.h>
#include "utils.h"
#include "pkgtools.h"
namespace slack {
/**
* slack::get_file:
* @curl: curl easy handle.
* @source_url: source url.
* @dest: destination.
*
* Download the file.
*
* Returns: CURLE_OK (zero) on success, non-zero otherwise.
**/
CURLcode
get_file (CURL **curl, char *source_url, char *dest)
{
char *dest_dir_name;
FILE *fout = nullptr;
CURLcode ret;
glong response_code;
if ((*curl == nullptr) && (!(*curl = curl_easy_init())))
{
return CURLE_BAD_FUNCTION_ARGUMENT;
}
curl_easy_setopt(*curl, CURLOPT_FOLLOWLOCATION, 1L);
curl_easy_setopt(*curl, CURLOPT_URL, source_url);
if (dest == nullptr)
{
curl_easy_setopt(*curl, CURLOPT_NOBODY, 1L);
curl_easy_setopt(*curl, CURLOPT_HEADER, 1L);
ret = curl_easy_perform(*curl);
curl_easy_getinfo(*curl, CURLINFO_RESPONSE_CODE, &response_code);
if (response_code != 200)
{
ret = CURLE_REMOTE_FILE_NOT_FOUND;
}
}
else
{
if (g_file_test(dest, G_FILE_TEST_IS_DIR))
{
dest_dir_name = dest;
dest = g_strconcat(dest_dir_name, g_strrstr(source_url, "/"), nullptr);
g_free(dest_dir_name);
}
if ((fout = fopen(dest, "ab")) == nullptr)
{
return CURLE_WRITE_ERROR;
}
curl_easy_setopt(*curl, CURLOPT_WRITEDATA, fout);
ret = curl_easy_perform(*curl);
}
curl_easy_reset(*curl);
if (fout != nullptr)
{
fclose(fout);
}
return ret;
}
/**
* slack::split_package_name:
* Got the name of a package, without version-arch-release data.
**/
char **
split_package_name (const char *pkg_filename)
{
char *pkg_full_name;
char **pkg_tokens;
g_return_val_if_fail(pkg_filename != nullptr, nullptr);
int len = strlen(pkg_filename);
if (len < 4)
{
return nullptr;
}
if (pkg_filename[len - 4] == '.')
{
pkg_tokens = static_cast<char **> (g_malloc_n (6, sizeof (char *)));
/* Full name without extension */
len -= 4;
pkg_full_name = g_strndup (pkg_filename, len);
pkg_tokens[3] = g_strdup (pkg_full_name);
/* The last 3 characters should be the file extension */
pkg_tokens[4] = g_strdup (pkg_filename + len + 1);
pkg_tokens[5] = nullptr;
}
else
{
pkg_tokens = static_cast<char **> (g_malloc_n (4, sizeof (char *)));
pkg_full_name = g_strdup (pkg_filename);
pkg_tokens[3] = nullptr;
}
/* Reverse all of the bytes in the package filename to get the name, version and the architecture */
g_strreverse (pkg_full_name);
char **reversed_tokens = g_strsplit (pkg_full_name, "-", 4);
pkg_tokens[0] = g_strreverse (reversed_tokens[3]); /* Name */
pkg_tokens[1] = g_strreverse (reversed_tokens[2]); /* Version */
pkg_tokens[2] = g_strreverse (reversed_tokens[1]); /* Architecture */
g_free (reversed_tokens[0]); /* Build number */
g_free (reversed_tokens);
g_free (pkg_full_name);
return pkg_tokens;
}
/**
* slack::is_installed:
* Checks if a package is already installed in the system.
*
* Params:
* pkg_fullname = Package name should be looked for.
*
* Returns: Package installation information.
**/
Info
is_installed (const char *pkg_fullname)
{
GFileEnumerator *pkg_metadata_enumerator;
GFileInfo *pkg_metadata_file_info;
GFile *pkg_metadata_dir;
Info ret = Info::installing;
const char *it;
std::uint8_t dashes = 0;
ptrdiff_t pkg_name;
g_return_val_if_fail(pkg_fullname != nullptr, Info::unknown);
// We want to find the package name without version for the package we're
// looking for.
g_debug("Looking if %s is installed", pkg_fullname);
for (it = pkg_fullname + strlen(pkg_fullname); it != pkg_fullname; --it)
{
if (*it == '-')
{
if (dashes == 2)
{
break;
}
++dashes;
}
}
if (dashes < 2)
{
return Info::unknown;
}
pkg_name = it - pkg_fullname;
// Read the package metadata directory and comprare all installed packages
// with ones in the cache.
pkg_metadata_dir = g_file_new_for_path("/var/log/packages");
if (!(pkg_metadata_enumerator = g_file_enumerate_children(pkg_metadata_dir,
"standard::name",
G_FILE_QUERY_INFO_NONE,
nullptr,
nullptr)))
{
g_object_unref(pkg_metadata_dir);
return Info::unknown;
}
while ((pkg_metadata_file_info = g_file_enumerator_next_file(pkg_metadata_enumerator, nullptr, nullptr)))
{
const char *dir = g_file_info_get_name(pkg_metadata_file_info);
dashes = 0;
if (strcmp(dir, pkg_fullname) == 0)
{
ret = Info::installed;
}
else
{
for (it = dir + strlen(dir); it != dir; --it)
{
if (*it == '-')
{
if (dashes == 2)
{
break;
}
++dashes;
}
}
if (pkg_name == (it - dir) && strncmp(pkg_fullname, dir, pkg_name) == 0)
{
ret = Info::updating;
}
}
g_object_unref(pkg_metadata_file_info);
if (ret != Info::installing) /* If installed */
{
break;
}
}
g_object_unref(pkg_metadata_enumerator);
g_object_unref(pkg_metadata_dir);
return ret;
}
/**
* slack::cmp_repo:
**/
int
cmp_repo (const void *a, const void *b)
{
auto repo = static_cast<const Pkgtools *> (a);
return g_strcmp0 (repo->get_name (), (char *) b);
}
}
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