netsurf/frontends/amiga/misc.c

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/*
* Copyright 2008-2010 Chris Young <chris@unsatisfactorysoftware.co.uk>
*
* This file is part of NetSurf, http://www.netsurf-browser.org/
*
* NetSurf 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; version 2 of the License.
*
* NetSurf 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.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <stdlib.h>
#include <string.h>
#include <sys/stat.h>
#include <proto/dos.h>
#include <proto/exec.h>
#include <proto/utility.h>
#ifndef __amigaos4__
#include <proto/intuition.h> // for EasyRequest
#endif
#include "utils/utils.h"
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#include "utils/corestrings.h"
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#include "utils/log.h"
#include "utils/file.h"
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#include "utils/messages.h"
#include "utils/nsurl.h"
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#include "utils/url.h"
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#include "netsurf/window.h"
#include "amiga/gui.h"
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#include "amiga/misc.h"
#include "amiga/utf8.h"
void *ami_misc_allocvec_clear(int size, UBYTE value)
{
#ifdef __amigaos4__
return AllocVecTags(size, AVT_ClearWithValue, value, TAG_DONE);
#else
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void *mem = AllocVec(size, MEMF_ANY);
if (mem) memset(mem, value, size);
return mem;
#endif
}
APTR ami_misc_itempool_create(int size)
{
#ifdef __amigaos4__
return AllocSysObjectTags(ASOT_ITEMPOOL,
ASOITEM_MFlags, MEMF_PRIVATE,
ASOITEM_ItemSize, size,
ASOITEM_GCPolicy, ITEMGC_AFTERCOUNT,
ASOITEM_GCParameter, 100,
TAG_DONE);
#else
return CreatePool(MEMF_ANY, 20 * size, size);
#endif
}
void ami_misc_itempool_delete(APTR pool)
{
#ifdef __amigaos4__
FreeSysObject(ASOT_ITEMPOOL, pool);
#else
DeletePool(pool);
#endif
}
APTR ami_misc_itempool_alloc(APTR pool, int size)
{
#ifdef __amigaos4__
return ItemPoolAlloc(pool);
#else
return AllocPooled(pool, size);
#endif
}
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void ami_misc_itempool_free(APTR restrict pool, APTR restrict item, int size)
{
#ifdef __amigaos4__
ItemPoolFree(pool, item);
#else
FreePooled(pool, item, size);
#endif
}
static LONG ami_misc_req(const char *message, uint32 type)
{
LONG ret = 0;
LOG("%s", message);
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#ifdef __amigaos4__
ret = TimedDosRequesterTags(
TDR_TitleString, messages_get("NetSurf"),
TDR_FormatString, message,
TDR_GadgetString, messages_get("OK"),
TDR_ImageType, type,
TDR_Window, cur_gw ? cur_gw->shared->win : NULL,
TAG_DONE);
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#else
struct EasyStruct easyreq = {
sizeof(struct EasyStruct),
0,
messages_get("NetSurf"),
message,
messages_get("OK"),
};
ret = EasyRequest(cur_gw ? cur_gw->shared->win : NULL, &easyreq, NULL);
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#endif
return ret;
}
void ami_misc_fatal_error(const char *message)
{
ami_misc_req(message, TDRIMAGE_ERROR);
}
/* exported interface documented in amiga/misc.h */
nserror amiga_warn_user(const char *warning, const char *detail)
{
char *utf8warning = ami_utf8_easy(messages_get(warning));
STRPTR bodytext = ASPrintf("\33b%s\33n\n%s",
utf8warning != NULL ? utf8warning : warning, detail);
ami_misc_req(bodytext, TDRIMAGE_WARNING);
if(bodytext) FreeVec(bodytext);
if(utf8warning) free(utf8warning);
return NSERROR_OK;
}
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int32 amiga_warn_user_multi(const char *body, const char *opt1, const char *opt2, struct Window *win)
{
int res = 0;
char *utf8text = ami_utf8_easy(body);
char *utf8gadget1 = ami_utf8_easy(messages_get(opt1));
char *utf8gadget2 = ami_utf8_easy(messages_get(opt2));
char *utf8gadgets = ASPrintf("%s|%s", utf8gadget1, utf8gadget2);
free(utf8gadget1);
free(utf8gadget2);
#ifdef __amigaos4__
res = TimedDosRequesterTags(TDR_ImageType, TDRIMAGE_WARNING,
TDR_TitleString, messages_get("NetSurf"),
TDR_FormatString, utf8text,
TDR_GadgetString, utf8gadgets,
TDR_Window, win,
TAG_DONE);
#else
struct EasyStruct easyreq = {
sizeof(struct EasyStruct),
0,
messages_get("NetSurf"),
utf8text,
utf8gadgets,
};
res = EasyRequest(win, &easyreq, NULL);
#endif
if(utf8text) free(utf8text);
if(utf8gadgets) FreeVec(utf8gadgets);
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return res;
}
/**
* Create a path from a nsurl using amiga file handling.
*
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* @param[in] url The url to encode.
* @param[out] path_out A string containing the result path which should
* be freed by the caller.
* @return NSERROR_OK and the path is written to \a path or error code
* on faliure.
*/
static nserror amiga_nsurl_to_path(struct nsurl *url, char **path_out)
{
lwc_string *urlpath;
char *path;
bool match;
lwc_string *scheme;
nserror res;
char *colon;
char *slash;
if ((url == NULL) || (path_out == NULL)) {
return NSERROR_BAD_PARAMETER;
}
scheme = nsurl_get_component(url, NSURL_SCHEME);
if (lwc_string_caseless_isequal(scheme, corestring_lwc_file,
&match) != lwc_error_ok)
{
return NSERROR_BAD_PARAMETER;
}
lwc_string_unref(scheme);
if (match == false) {
return NSERROR_BAD_PARAMETER;
}
urlpath = nsurl_get_component(url, NSURL_PATH);
if (urlpath == NULL) {
return NSERROR_BAD_PARAMETER;
}
res = url_unescape(lwc_string_data(urlpath) + 1, 0, &path);
lwc_string_unref(urlpath);
if (res != NSERROR_OK) {
return res;
}
colon = strchr(path, ':');
if(colon == NULL)
{
slash = strchr(path, '/');
if(slash)
{
*slash = ':';
}
else
{
int len = strlen(path);
path[len] = ':';
path[len + 1] = '\0';
}
}
*path_out = path;
return NSERROR_OK;
}
/**
* Create a nsurl from a path using amiga file handling.
*
* Perform the necessary operations on a path to generate a nsurl.
*
* @param[in] path The path to convert.
* @param[out] url_out pointer to recive the nsurl, The returned url
* must be unreferenced by the caller.
* @return NSERROR_OK and the url is placed in \a url or error code on
* faliure.
*/
static nserror amiga_path_to_nsurl(const char *path, struct nsurl **url_out)
{
char *colon = NULL;
char *r = NULL;
char newpath[1024 + strlen(path)];
BPTR lock = 0;
nserror ret;
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if((lock = Lock(path, SHARED_LOCK))) {
DevNameFromLock(lock, newpath, sizeof newpath, DN_FULLPATH);
UnLock(lock);
}
else strlcpy(newpath, path, sizeof newpath);
r = malloc(strlen(newpath) + SLEN("file:///") + 1);
if (r == NULL) {
return NSERROR_NOMEM;
}
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if((colon = strchr(newpath, ':'))) *colon = '/';
strcpy(r, "file:///");
strcat(r, newpath);
ret = nsurl_create(r, url_out);
free(r);
return ret;
}
/**
* returns a string with escape chars translated.
* (based on remove_underscores from utils.c)
*/
char *translate_escape_chars(const char *s)
{
size_t i, ii, len;
char *ret;
len = strlen(s);
ret = malloc(len + 1);
if (ret == NULL)
return NULL;
for (i = 0, ii = 0; i < len; i++) {
if (s[i] != '\\') {
ret[ii++] = s[i];
}
else if (s[i+1] == 'n') {
ret[ii++] = '\n';
i++;
}
}
ret[ii] = '\0';
return ret;
}
/**
* Generate a posix path from one or more component elemnts.
*
* If a string is allocated it must be freed by the caller.
*
* @param[in,out] str pointer to string pointer if this is NULL enough
* storage will be allocated for the complete path.
* @param[in,out] size The size of the space available if \a str not
* NULL on input and if not NULL set to the total
* output length on output.
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* @param[in] nelm The number of elements.
* @param[in] ap The elements of the path as string pointers.
* @return NSERROR_OK and the complete path is written to str
* or error code on faliure.
*/
static nserror amiga_vmkpath(char **str, size_t *size, size_t nelm, va_list ap)
{
const char *elm[16];
size_t elm_len[16];
size_t elm_idx;
char *fname;
size_t fname_len = 0;
/* check the parameters are all sensible */
if ((nelm == 0) || (nelm > 16)) {
return NSERROR_BAD_PARAMETER;
}
if ((*str != NULL) && (size == NULL)) {
/* if the caller is providing the buffer they must say
* how much space is available.
*/
return NSERROR_BAD_PARAMETER;
}
/* calculate how much storage we need for the complete path
* with all the elements.
*/
for (elm_idx = 0; elm_idx < nelm; elm_idx++) {
elm[elm_idx] = va_arg(ap, const char *);
/* check the argument is not NULL */
if (elm[elm_idx] == NULL) {
return NSERROR_BAD_PARAMETER;
}
elm_len[elm_idx] = strlen(elm[elm_idx]);
fname_len += elm_len[elm_idx];
}
fname_len += nelm; /* allow for separators and terminator */
/* ensure there is enough space */
fname = *str;
if (fname != NULL) {
if (fname_len > *size) {
return NSERROR_NOSPACE;
}
} else {
fname = malloc(fname_len);
if (fname == NULL) {
return NSERROR_NOMEM;
}
}
/* copy the first element complete */
memmove(fname, elm[0], elm_len[0]);
fname[elm_len[0]] = 0;
/* add the remaining elements */
for (elm_idx = 1; elm_idx < nelm; elm_idx++) {
if (!AddPart(fname, elm[elm_idx], fname_len)) {
break;
}
}
*str = fname;
if (size != NULL) {
*size = fname_len;
}
return NSERROR_OK;
}
/**
* Get the basename of a file using posix path handling.
*
* This gets the last element of a path and returns it.
*
* @param[in] path The path to extract the name from.
* @param[in,out] str Pointer to string pointer if this is NULL enough
* storage will be allocated for the path element.
* @param[in,out] size The size of the space available if \a
* str not NULL on input and set to the total
* output length on output.
* @return NSERROR_OK and the complete path is written to str
* or error code on faliure.
*/
static nserror amiga_basename(const char *path, char **str, size_t *size)
{
const char *leafname;
char *fname;
if (path == NULL) {
return NSERROR_BAD_PARAMETER;
}
leafname = FilePart(path);
if (leafname == NULL) {
return NSERROR_BAD_PARAMETER;
}
fname = strdup(leafname);
if (fname == NULL) {
return NSERROR_NOMEM;
}
*str = fname;
if (size != NULL) {
*size = strlen(fname);
}
return NSERROR_OK;
}
/**
* Ensure that all directory elements needed to store a filename exist.
*
* @param fname The filename to ensure the path to exists.
* @return NSERROR_OK on success or error code on failure.
*/
static nserror amiga_mkdir_all(const char *fname)
{
char *dname;
char *sep;
struct stat sb;
dname = strdup(fname);
sep = strrchr(dname, '/');
if (sep == NULL) {
/* no directory separator path is just filename so its ok */
free(dname);
return NSERROR_OK;
}
*sep = 0; /* null terminate directory path */
if (stat(dname, &sb) == 0) {
free(dname);
if (S_ISDIR(sb.st_mode)) {
/* path to file exists and is a directory */
return NSERROR_OK;
}
return NSERROR_NOT_DIRECTORY;
}
*sep = '/'; /* restore separator */
sep = dname;
while (*sep == '/') {
sep++;
}
while ((sep = strchr(sep, '/')) != NULL) {
*sep = 0;
if (stat(dname, &sb) != 0) {
if (nsmkdir(dname, S_IRWXU) != 0) {
/* could not create path element */
free(dname);
return NSERROR_NOT_FOUND;
}
} else {
if (! S_ISDIR(sb.st_mode)) {
/* path element not a directory */
free(dname);
return NSERROR_NOT_DIRECTORY;
}
}
*sep = '/'; /* restore separator */
/* skip directory separators */
while (*sep == '/') {
sep++;
}
}
free(dname);
return NSERROR_OK;
}
/* amiga file handling operations */
static struct gui_file_table file_table = {
.mkpath = amiga_vmkpath,
.basename = amiga_basename,
.nsurl_to_path = amiga_nsurl_to_path,
.path_to_nsurl = amiga_path_to_nsurl,
.mkdir_all = amiga_mkdir_all,
};
struct gui_file_table *amiga_file_table = &file_table;