mirror of
https://github.com/profanity-im/profanity.git
synced 2024-10-06 20:03:46 -04:00
8e588d6764
Our variable `alphabet` contains 62 alphanumeric symbols + '\0'. When we use sizeof(alphabet) we will get 63 due to that. But we want to choose a random numbers from the 62 alphanumeric letters only. This mistake caused us to have strings with a max length of `length` instead of the exact length. When doing https://github.com/profanity-im/profanity/issues/1520 this caused our algo for muc reflection to not catch since we expect the random ID to be exactly 15 symbols long in `message_is_sent_by_us()`.
635 lines
16 KiB
C
635 lines
16 KiB
C
/*
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* common.c
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* vim: expandtab:ts=4:sts=4:sw=4
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*
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* Copyright (C) 2012 - 2019 James Booth <boothj5@gmail.com>
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* Copyright (C) 2019 - 2021 Michael Vetter <jubalh@iodoru.org>
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*
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* This file is part of Profanity.
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*
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* Profanity is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Profanity is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Profanity. If not, see <https://www.gnu.org/licenses/>.
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*
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* In addition, as a special exception, the copyright holders give permission to
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* link the code of portions of this program with the OpenSSL library under
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* certain conditions as described in each individual source file, and
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* distribute linked combinations including the two.
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*
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* You must obey the GNU General Public License in all respects for all of the
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* code used other than OpenSSL. If you modify file(s) with this exception, you
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* may extend this exception to your version of the file(s), but you are not
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* obligated to do so. If you do not wish to do so, delete this exception
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* statement from your version. If you delete this exception statement from all
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* source files in the program, then also delete it here.
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*
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*/
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#include "config.h"
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#include <errno.h>
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#include <sys/select.h>
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#include <assert.h>
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#include <stdlib.h>
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#include <stdint.h>
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#include <stdio.h>
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#include <string.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <curl/curl.h>
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#include <curl/easy.h>
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#include <glib.h>
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#include <gio/gio.h>
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#ifdef HAVE_NCURSESW_NCURSES_H
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#include <ncursesw/ncurses.h>
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#elif HAVE_NCURSES_H
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#include <ncurses.h>
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#elif HAVE_CURSES_H
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#include <curses.h>
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#endif
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#include "log.h"
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#include "common.h"
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struct curl_data_t
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{
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char* buffer;
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size_t size;
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};
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static size_t _data_callback(void* ptr, size_t size, size_t nmemb, void* data);
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gboolean
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create_dir(char* name)
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{
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struct stat sb;
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if (stat(name, &sb) != 0) {
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if (errno != ENOENT || mkdir(name, S_IRWXU) != 0) {
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return FALSE;
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}
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} else {
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if ((sb.st_mode & S_IFDIR) != S_IFDIR) {
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log_debug("create_dir: %s exists and is not a directory!", name);
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return FALSE;
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}
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}
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return TRUE;
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}
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gboolean
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mkdir_recursive(const char* dir)
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{
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gboolean result = TRUE;
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for (int i = 1; i <= strlen(dir); i++) {
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if (dir[i] == '/' || dir[i] == '\0') {
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gchar* next_dir = g_strndup(dir, i);
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result = create_dir(next_dir);
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g_free(next_dir);
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if (!result) {
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break;
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}
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}
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}
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return result;
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}
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gboolean
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copy_file(const char* const sourcepath, const char* const targetpath, const gboolean overwrite_existing)
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{
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GFile* source = g_file_new_for_path(sourcepath);
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GFile* dest = g_file_new_for_path(targetpath);
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GError* error = NULL;
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GFileCopyFlags flags = overwrite_existing ? G_FILE_COPY_OVERWRITE : G_FILE_COPY_NONE;
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gboolean success = g_file_copy(source, dest, flags, NULL, NULL, NULL, &error);
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if (error != NULL)
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g_error_free(error);
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g_object_unref(source);
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g_object_unref(dest);
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return success;
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}
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char*
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str_replace(const char* string, const char* substr,
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const char* replacement)
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{
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char* tok = NULL;
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char* newstr = NULL;
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char* head = NULL;
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if (string == NULL)
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return NULL;
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if (substr == NULL || replacement == NULL || (strcmp(substr, "") == 0))
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return strdup(string);
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newstr = strdup(string);
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head = newstr;
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while ((tok = strstr(head, substr))) {
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char* oldstr = newstr;
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newstr = malloc(strlen(oldstr) - strlen(substr) + strlen(replacement) + 1);
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if (newstr == NULL) {
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free(oldstr);
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return NULL;
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}
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memcpy(newstr, oldstr, tok - oldstr);
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memcpy(newstr + (tok - oldstr), replacement, strlen(replacement));
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memcpy(newstr + (tok - oldstr) + strlen(replacement),
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tok + strlen(substr),
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strlen(oldstr) - strlen(substr) - (tok - oldstr));
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memset(newstr + strlen(oldstr) - strlen(substr) + strlen(replacement), 0, 1);
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head = newstr + (tok - oldstr) + strlen(replacement);
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free(oldstr);
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}
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return newstr;
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}
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gboolean
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strtoi_range(char* str, int* saveptr, int min, int max, char** err_msg)
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{
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char* ptr;
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int val;
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errno = 0;
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val = (int)strtol(str, &ptr, 0);
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if (errno != 0 || *str == '\0' || *ptr != '\0') {
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GString* err_str = g_string_new("");
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g_string_printf(err_str, "Could not convert \"%s\" to a number.", str);
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*err_msg = err_str->str;
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g_string_free(err_str, FALSE);
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return FALSE;
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} else if (val < min || val > max) {
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GString* err_str = g_string_new("");
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g_string_printf(err_str, "Value %s out of range. Must be in %d..%d.", str, min, max);
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*err_msg = err_str->str;
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g_string_free(err_str, FALSE);
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return FALSE;
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}
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*saveptr = val;
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return TRUE;
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}
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int
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utf8_display_len(const char* const str)
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{
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if (!str) {
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return 0;
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}
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int len = 0;
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gchar* curr = g_utf8_offset_to_pointer(str, 0);
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while (*curr != '\0') {
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gunichar curru = g_utf8_get_char(curr);
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if (g_unichar_iswide(curru)) {
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len += 2;
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} else {
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len++;
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}
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curr = g_utf8_next_char(curr);
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}
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return len;
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}
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char*
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release_get_latest(void)
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{
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char* url = "https://profanity-im.github.io/profanity_version.txt";
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CURL* handle = curl_easy_init();
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struct curl_data_t output;
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output.buffer = NULL;
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output.size = 0;
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curl_easy_setopt(handle, CURLOPT_URL, url);
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curl_easy_setopt(handle, CURLOPT_WRITEFUNCTION, _data_callback);
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curl_easy_setopt(handle, CURLOPT_TIMEOUT, 2);
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curl_easy_setopt(handle, CURLOPT_WRITEDATA, (void*)&output);
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curl_easy_perform(handle);
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curl_easy_cleanup(handle);
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if (output.buffer) {
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output.buffer[output.size++] = '\0';
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return output.buffer;
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} else {
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return NULL;
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}
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}
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gboolean
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release_is_new(char* found_version)
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{
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int curr_maj, curr_min, curr_patch, found_maj, found_min, found_patch;
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int parse_curr = sscanf(PACKAGE_VERSION, "%d.%d.%d", &curr_maj, &curr_min,
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&curr_patch);
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int parse_found = sscanf(found_version, "%d.%d.%d", &found_maj, &found_min,
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&found_patch);
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if (parse_found == 3 && parse_curr == 3) {
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if (found_maj > curr_maj) {
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return TRUE;
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} else if (found_maj == curr_maj && found_min > curr_min) {
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return TRUE;
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} else if (found_maj == curr_maj && found_min == curr_min
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&& found_patch > curr_patch) {
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return TRUE;
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} else {
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return FALSE;
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}
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} else {
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return FALSE;
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}
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}
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static size_t
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_data_callback(void* ptr, size_t size, size_t nmemb, void* data)
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{
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size_t realsize = size * nmemb;
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struct curl_data_t* mem = (struct curl_data_t*)data;
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mem->buffer = realloc(mem->buffer, mem->size + realsize + 1);
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if (mem->buffer) {
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memcpy(&(mem->buffer[mem->size]), ptr, realsize);
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mem->size += realsize;
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mem->buffer[mem->size] = 0;
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}
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return realsize;
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}
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char*
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get_file_or_linked(char* loc, char* basedir)
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{
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char* true_loc = NULL;
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// check for symlink
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if (g_file_test(loc, G_FILE_TEST_IS_SYMLINK)) {
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true_loc = g_file_read_link(loc, NULL);
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// if relative, add basedir
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if (!g_str_has_prefix(true_loc, "/") && !g_str_has_prefix(true_loc, "~")) {
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GString* base_str = g_string_new(basedir);
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g_string_append(base_str, "/");
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g_string_append(base_str, true_loc);
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free(true_loc);
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true_loc = base_str->str;
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g_string_free(base_str, FALSE);
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}
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// use given location
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} else {
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true_loc = strdup(loc);
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}
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return true_loc;
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}
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char*
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strip_arg_quotes(const char* const input)
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{
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char* unquoted = strdup(input);
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// Remove starting quote if it exists
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if (strchr(unquoted, '"')) {
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if (strchr(unquoted, ' ') + 1 == strchr(unquoted, '"')) {
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memmove(strchr(unquoted, '"'), strchr(unquoted, '"') + 1, strchr(unquoted, '\0') - strchr(unquoted, '"'));
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}
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}
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// Remove ending quote if it exists
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if (strchr(unquoted, '"')) {
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if (strchr(unquoted, '\0') - 1 == strchr(unquoted, '"')) {
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memmove(strchr(unquoted, '"'), strchr(unquoted, '"') + 1, strchr(unquoted, '\0') - strchr(unquoted, '"'));
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}
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}
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return unquoted;
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}
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gboolean
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is_notify_enabled(void)
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{
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gboolean notify_enabled = FALSE;
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#ifdef HAVE_OSXNOTIFY
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notify_enabled = TRUE;
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#endif
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#ifdef HAVE_LIBNOTIFY
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notify_enabled = TRUE;
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#endif
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#ifdef PLATFORM_CYGWIN
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notify_enabled = TRUE;
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#endif
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return notify_enabled;
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}
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GSList*
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prof_occurrences(const char* const needle, const char* const haystack, int offset, gboolean whole_word, GSList** result)
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{
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if (needle == NULL || haystack == NULL) {
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return *result;
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}
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gchar* haystack_curr = g_utf8_offset_to_pointer(haystack, offset);
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if (g_str_has_prefix(haystack_curr, needle)) {
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if (whole_word) {
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gunichar before = 0;
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gchar* haystack_before_ch = g_utf8_find_prev_char(haystack, haystack_curr);
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if (haystack_before_ch) {
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before = g_utf8_get_char(haystack_before_ch);
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}
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gunichar after = 0;
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gchar* haystack_after_ch = haystack_curr + strlen(needle);
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if (haystack_after_ch[0] != '\0') {
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after = g_utf8_get_char(haystack_after_ch);
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}
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if (!g_unichar_isalnum(before) && !g_unichar_isalnum(after)) {
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*result = g_slist_append(*result, GINT_TO_POINTER(offset));
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}
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} else {
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*result = g_slist_append(*result, GINT_TO_POINTER(offset));
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}
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}
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offset++;
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if (g_strcmp0(g_utf8_offset_to_pointer(haystack, offset), "\0") != 0) {
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*result = prof_occurrences(needle, haystack, offset, whole_word, result);
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}
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return *result;
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}
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int
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is_regular_file(const char* path)
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{
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struct stat st;
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int ret = stat(path, &st);
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if (ret != 0) {
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perror(NULL);
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return 0;
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}
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return S_ISREG(st.st_mode);
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}
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int
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is_dir(const char* path)
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{
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struct stat st;
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int ret = stat(path, &st);
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if (ret != 0) {
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perror(NULL);
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return 0;
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}
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return S_ISDIR(st.st_mode);
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}
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void
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get_file_paths_recursive(const char* path, GSList** contents)
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{
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if (!is_dir(path)) {
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return;
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}
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GDir* directory = g_dir_open(path, 0, NULL);
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const gchar* entry = g_dir_read_name(directory);
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while (entry) {
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GString* full = g_string_new(path);
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if (!g_str_has_suffix(full->str, "/")) {
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g_string_append(full, "/");
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}
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g_string_append(full, entry);
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if (is_dir(full->str)) {
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get_file_paths_recursive(full->str, contents);
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} else if (is_regular_file(full->str)) {
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*contents = g_slist_append(*contents, full->str);
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}
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g_string_free(full, FALSE);
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entry = g_dir_read_name(directory);
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}
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}
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char*
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get_random_string(int length)
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{
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GRand* prng;
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char* rand;
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char alphabet[] = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";
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int endrange = sizeof(alphabet) - 1;
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rand = calloc(length + 1, sizeof(char));
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prng = g_rand_new();
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for (int i = 0; i < length; i++) {
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rand[i] = alphabet[g_rand_int_range(prng, 0, endrange)];
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}
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g_rand_free(prng);
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return rand;
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}
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GSList*
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get_mentions(gboolean whole_word, gboolean case_sensitive, const char* const message, const char* const nick)
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{
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GSList* mentions = NULL;
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gchar* message_search = case_sensitive ? g_strdup(message) : g_utf8_strdown(message, -1);
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gchar* mynick_search = case_sensitive ? g_strdup(nick) : g_utf8_strdown(nick, -1);
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mentions = prof_occurrences(mynick_search, message_search, 0, whole_word, &mentions);
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g_free(message_search);
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g_free(mynick_search);
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return mentions;
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}
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gboolean
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call_external(gchar** argv, gchar** std_out, gchar** std_err)
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{
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GSpawnFlags flags = G_SPAWN_SEARCH_PATH;
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if (std_out == NULL)
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flags |= G_SPAWN_STDOUT_TO_DEV_NULL;
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if (std_err == NULL)
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flags |= G_SPAWN_STDERR_TO_DEV_NULL;
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gint exit_status;
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gboolean spawn_result;
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GError* spawn_error;
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spawn_result = g_spawn_sync(NULL, // Inherit the parent PWD.
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argv,
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NULL, // Inherit the parent environment.
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flags,
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NULL, NULL, // No func. before exec() in child.
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std_out, std_err,
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&exit_status, &spawn_error);
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if (!spawn_result
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|| !g_spawn_check_exit_status(exit_status, &spawn_error)) {
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gchar* cmd = g_strjoinv(" ", argv);
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log_error("Spawning '%s' failed with '%s'.", cmd, spawn_error->message);
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g_free(cmd);
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g_error_free(spawn_error);
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}
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return spawn_result;
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}
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gchar**
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format_call_external_argv(const char* template, const char* url, const char* filename)
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{
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gchar** argv = g_strsplit(template, " ", 0);
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guint num_args = 0;
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while (argv[num_args]) {
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if (0 == g_strcmp0(argv[num_args], "%u") && url != NULL) {
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g_free(argv[num_args]);
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argv[num_args] = g_strdup(url);
|
|
} else if (0 == g_strcmp0(argv[num_args], "%p") && filename != NULL) {
|
|
g_free(argv[num_args]);
|
|
argv[num_args] = strdup(filename);
|
|
}
|
|
num_args++;
|
|
}
|
|
|
|
return argv;
|
|
}
|
|
|
|
gchar*
|
|
_unique_filename(const char* filename)
|
|
{
|
|
gchar* unique = g_strdup(filename);
|
|
|
|
unsigned int i = 0;
|
|
while (g_file_test(unique, G_FILE_TEST_EXISTS)) {
|
|
g_free(unique);
|
|
|
|
if (i > 1000) { // Give up after 1000 attempts.
|
|
return NULL;
|
|
}
|
|
|
|
unique = g_strdup_printf("%s.%u", filename, i);
|
|
if (!unique) {
|
|
return NULL;
|
|
}
|
|
|
|
i++;
|
|
}
|
|
|
|
return unique;
|
|
}
|
|
|
|
bool
|
|
_has_directory_suffix(const char* path)
|
|
{
|
|
return (g_str_has_suffix(path, ".")
|
|
|| g_str_has_suffix(path, "..")
|
|
|| g_str_has_suffix(path, G_DIR_SEPARATOR_S));
|
|
}
|
|
|
|
char*
|
|
_basename_from_url(const char* url)
|
|
{
|
|
const char* default_name = "index";
|
|
|
|
GFile* file = g_file_new_for_commandline_arg(url);
|
|
char* basename = g_file_get_basename(file);
|
|
|
|
if (_has_directory_suffix(basename)) {
|
|
g_free(basename);
|
|
basename = strdup(default_name);
|
|
}
|
|
|
|
g_object_unref(file);
|
|
|
|
return basename;
|
|
}
|
|
|
|
gchar*
|
|
get_expanded_path(const char* path)
|
|
{
|
|
GString* exp_path = g_string_new("");
|
|
gchar* result;
|
|
|
|
if (g_str_has_prefix(path, "file://")) {
|
|
path += strlen("file://");
|
|
}
|
|
if (strlen(path) >= 2 && path[0] == '~' && path[1] == '/') {
|
|
g_string_printf(exp_path, "%s/%s", getenv("HOME"), path + 2);
|
|
} else {
|
|
g_string_printf(exp_path, "%s", path);
|
|
}
|
|
|
|
result = exp_path->str;
|
|
g_string_free(exp_path, FALSE);
|
|
|
|
return result;
|
|
}
|
|
|
|
gchar*
|
|
unique_filename_from_url(const char* url, const char* path)
|
|
{
|
|
gchar* realpath;
|
|
|
|
// Default to './' as path when none has been provided.
|
|
if (path == NULL) {
|
|
realpath = g_strdup("./");
|
|
} else {
|
|
realpath = get_expanded_path(path);
|
|
}
|
|
|
|
// Resolves paths such as './../.' for path.
|
|
GFile* target = g_file_new_for_commandline_arg(realpath);
|
|
gchar* filename = NULL;
|
|
|
|
if (_has_directory_suffix(realpath) || g_file_test(realpath, G_FILE_TEST_IS_DIR)) {
|
|
// The target should be used as a directory. Assume that the basename
|
|
// should be derived from the URL.
|
|
char* basename = _basename_from_url(url);
|
|
filename = g_build_filename(g_file_peek_path(target), basename, NULL);
|
|
g_free(basename);
|
|
} else {
|
|
// Just use the target as filename.
|
|
filename = g_build_filename(g_file_peek_path(target), NULL);
|
|
}
|
|
|
|
gchar* unique_filename = _unique_filename(filename);
|
|
if (unique_filename == NULL) {
|
|
g_free(filename);
|
|
g_free(realpath);
|
|
return NULL;
|
|
}
|
|
|
|
g_object_unref(target);
|
|
g_free(filename);
|
|
g_free(realpath);
|
|
|
|
return unique_filename;
|
|
}
|