Mercurial > imgup
view image.c @ 23:f19f5f9fee56
misc: update copyright years
author | David Demelier <markand@malikania.fr> |
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date | Mon, 12 Apr 2021 20:29:53 +0200 |
parents | f41e1b48510d |
children | b74c1f165e51 |
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/* * image.c -- image definition * * Copyright (c) 2020-2021 David Demelier <markand@malikania.fr> * * Permission to use, copy, modify, and/or distribute this software for any * purpose with or without fee is hereby granted, provided that the above * copyright notice and this permission notice appear in all copies. * * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ #include <assert.h> #include <stdlib.h> #include <string.h> #include <magic.h> #include "image.h" #include "log.h" #include "util.h" static const char *mimes[] = { "image/bmp", "image/jpeg", "image/gif", "image/png", "image/svg+xml", "image/tiff", "image/webp" }; void image_finish(struct image *image) { assert(image); free(image->id); free(image->title); free(image->author); free(image->data); free(image->filename); memset(image, 0, sizeof (*image)); } bool image_isvalid(const void *src, size_t srcsz) { assert(src); magic_t cookie; bool ret = false; const char *mime; /* * If we're unable to load the libmagic we assume it's valid image and * let the browser show an invalid thing instead. */ if (!(cookie = magic_open(MAGIC_MIME_TYPE))) return true; magic_load(cookie, NULL); if ((mime = magic_buffer(cookie, src, srcsz))) { for (size_t i = 0; i < NELEM(mimes); ++i) { if (strcmp(mime, mimes[i]) == 0) { ret = true; break; } } } magic_close(cookie); return ret; }