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HTTP Server: Handle both 'file:///cur_root' and 'file:///bad_root/' [#524]

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This commit is contained in:
gnosygnu 2019-08-16 02:30:10 -04:00
parent 80f4a0fbf5
commit 0295d816fd
4 changed files with 204 additions and 44 deletions
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1
400_xowa/src/gplx/xowa/apps/servers/http/Http_server_wkr.java
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@ -144,7 +144,6 @@ public class Http_server_wkr implements Gfo_invk {
page_html = String_.Replace(page_html, "/site" , ""); page_html = String_.Replace(page_html, "/site" , "");
return page_html; return page_html;
} }
public Object Invk(GfsCtx ctx, int ikey, String k, GfoMsg m) { public Object Invk(GfsCtx ctx, int ikey, String k, GfoMsg m) {
if (ctx.Match(k, Invk_run)) {this.Run();} if (ctx.Match(k, Invk_run)) {this.Run();}
else return Gfo_invk_.Rv_unhandled; else return Gfo_invk_.Rv_unhandled;

141
400_xowa/src/gplx/xowa/apps/servers/http/Http_server_wkr_fsys_hack_.java Normal file
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@ -0,0 +1,141 @@
/*
XOWA: the XOWA Offline Wiki Application
Copyright (C) 2012-2017 gnosygnu@gmail.com
XOWA is licensed under the terms of the General Public License (GPL) Version 3,
or alternatively under the terms of the Apache License Version 2.0.
You may use XOWA according to either of these licenses as is most appropriate
for your project on a case-by-case basis.
The terms of each license can be found in the source code repository:
GPLv3 License: https://github.com/gnosygnu/xowa/blob/master/LICENSE-GPLv3.txt
Apache License: https://github.com/gnosygnu/xowa/blob/master/LICENSE-APACHE2.txt
*/
package gplx.xowa.apps.servers.http; import gplx.*; import gplx.xowa.*; import gplx.xowa.apps.*; import gplx.xowa.apps.servers.*;
import gplx.core.btries.*;
class Http_server_wkr_fsys_hack_ {
private static final byte[]
Bry__file_lhs = Bry_.new_a7("file:///")
, Bry__file_fsys = Bry_.new_a7("/fsys")
;
private static final Btrie_slim_mgr xowa_path_segment_trie = Btrie_slim_mgr.ci_a7()
.Add_many_str
( "/file/" // most files EX: file:////home/lnxusr/xowa/file/en.wikipedia.org/7/0/A.png
, "/user/anonymous/" // wiki css; EX: url(file:///c:/xowa/user/anonymous/wiki/www.wikidata.org/html/logo.png)
, "/bin/any/" // app resources; EX: file:///c:/xowa/bin/any/xowa/file/app.window/app_icon.png
)
;
public static byte[] Replace(byte[] html_bry) {
// init
Bry_bfr bfr = Bry_bfr_.New();
int len = html_bry.length;
int pos = 0;
// loop while finding root_dir_http
while (true) {
// find "file:///"
int file_bgn = Bry_find_.Find_fwd(html_bry, Bry__file_lhs, pos);
// exit if nothing found
if (file_bgn == Bry_find_.Not_found)
break;
// set file_end (after "file:///")
int file_end = file_bgn + Bry__file_lhs.length;
// skip if page literally starts with "file:"
if (file_bgn == 0) {
bfr.Add_mid(html_bry, pos, file_end);
pos = file_end;
continue;
}
// get quote_bgn char before "file:///"
int quote_bgn = file_bgn - 1;
byte quote_bgn_char = html_bry[quote_bgn];
byte quote_end_char = Byte_ascii.Null;
boolean quote_is_ws = false;
// get quote_end char
switch (quote_bgn_char) {
case Byte_ascii.Apos: // EX: 'file:///...'
case Byte_ascii.Quote: // EX: "file:///..."
quote_end_char = quote_bgn_char;
break;
case Byte_ascii.Paren_bgn: // EX: url(file:///...)
quote_end_char = Byte_ascii.Paren_end;
break;
case Byte_ascii.Space: // EX: '\sfile:///...\n'; NOTE: don't know if this is needed, but just in case it's in TemplateStyles.css
case Byte_ascii.Tab:
case Byte_ascii.Nl:
case Byte_ascii.Cr:
quote_is_ws = true;
quote_end_char = quote_bgn_char;
break;
default:
break;
}
// preceding char is not supported; exit; EX: '!file:///'
if (quote_end_char == Byte_ascii.Null) {
bfr.Add_mid(html_bry, pos, file_end);
pos = file_end;
continue;
}
// find quote_end
int quote_end =
quote_is_ws
? Bry_find_.Find_fwd_until_ws(html_bry, file_end, len)
: Bry_find_.Find_fwd (html_bry, quote_end_char, file_end);
// exit if no quote_end
if (quote_end == Bry_find_.Not_found)
break;
// skip if "'file: ... '" is too long. should be no more than 300
if (quote_end - file_end > 300) {
bfr.Add_mid(html_bry, pos, quote_end);
pos = quote_end;
continue;
}
// loop chars between quote_bgn and quote_end and must have one of segments defined above; "/file/", "/bin/any/", "/user/anonymous/"
int mid_bgn = Bry_find_.Not_found;
Btrie_rv trv = new Btrie_rv();
for (int i = quote_bgn; i < quote_end; i++) {
byte b = html_bry[i];
Object o = xowa_path_segment_trie.Match_at_w_b0(trv, b, html_bry, i, quote_end);
if (o != null) {
mid_bgn = i;
break;
}
}
// skip if no xowa_path_segment found
if (mid_bgn == -1) {
bfr.Add_mid(html_bry, pos, quote_end);
pos = quote_end;
continue;
}
// add everything up to xowa_path_segment
bfr.Add_mid(html_bry, pos, file_bgn);
// add "/fsys/"
bfr.Add(Bry__file_fsys);
// add everything up to quote_end
bfr.Add_mid(html_bry, mid_bgn, quote_end);
// move pos forward
pos = quote_end;
}
// add rest
bfr.Add_mid(html_bry, pos, len);
return bfr.To_bry_and_clear();
}
}

63
400_xowa/src/gplx/xowa/apps/servers/http/Http_server_wkr_fsys_hack__tst.java Normal file
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@ -0,0 +1,63 @@
/*
XOWA: the XOWA Offline Wiki Application
Copyright (C) 2012-2017 gnosygnu@gmail.com
XOWA is licensed under the terms of the General Public License (GPL) Version 3,
or alternatively under the terms of the Apache License Version 2.0.
You may use XOWA according to either of these licenses as is most appropriate
for your project on a case-by-case basis.
The terms of each license can be found in the source code repository:
GPLv3 License: https://github.com/gnosygnu/xowa/blob/master/LICENSE-GPLv3.txt
Apache License: https://github.com/gnosygnu/xowa/blob/master/LICENSE-APACHE2.txt
*/
package gplx.xowa.apps.servers.http; import gplx.*; import gplx.xowa.*; import gplx.xowa.apps.*; import gplx.xowa.apps.servers.*;
import org.junit.*; import gplx.core.tests.*;
public class Http_server_wkr_fsys_hack__tst {
private final Http_server_wkr_fsys_hack__fxt fxt = new Http_server_wkr_fsys_hack__fxt();
@Test public void File_bgn_missing() { // "file:" missing
fxt.Test__Replace_fsys_hack("src='file////home/lnxusr/xowa/file/'");
}
@Test public void File_bgn_at_bos() { // "file:" at start of page
fxt.Test__Replace_fsys_hack("file:////home/lnxusr/xowa/file/");
}
@Test public void Quote_bgn_missing() {
fxt.Test__Replace_fsys_hack("<file:////home/lnxusr/xowa/file/>");
}
@Test public void Quote_end_missing() {
fxt.Test__Replace_fsys_hack("a'file:////home/lnxusr/xowa/file/");
}
@Test public void Too_long() { // skip if too long
fxt.Test__Replace_fsys_hack("'file:" + String_.Repeat("a", 301) + "'");
}
@Test public void File_mid_missing() { // skip if no /file/
fxt.Test__Replace_fsys_hack("'file:////home/lnxusr/xowa/file_missing/'");
}
@Test public void File__one() {
fxt.Test__Replace_fsys_hack("'file:////home/lnxusr/xowa/file/A.png'", "'/fsys/file/A.png'");
}
@Test public void File__many() {
fxt.Test__Replace_fsys_hack("a 'file:////home/lnxusr/xowa/file/A.png' b 'file:////home/lnxusr/xowa/file/B.png' c", "a '/fsys/file/A.png' b '/fsys/file/B.png' c");
}
@Test public void Quote() {
fxt.Test__Replace_fsys_hack("a \"file:////home/lnxusr/xowa/file/A.png\" b", "a \"/fsys/file/A.png\" b");
}
@Test public void Ws() {
fxt.Test__Replace_fsys_hack("a file:////home/lnxusr/xowa/file/A.png\nb", "a /fsys/file/A.png\nb");
}
@Test public void Bin_any() {
fxt.Test__Replace_fsys_hack("a 'file:///C:/xowa/bin/any/xowa/file/app.window/app_icon.png' b", "a '/fsys/bin/any/xowa/file/app.window/app_icon.png' b");
}
@Test public void Url() {
fxt.Test__Replace_fsys_hack("url(file:///C:/xowa/user/anonymous/wiki/en.wikipedia.org/html/logo.png)", "url(/fsys/user/anonymous/wiki/en.wikipedia.org/html/logo.png)");
}
}
class Http_server_wkr_fsys_hack__fxt {
public void Test__Replace_fsys_hack(String html) {Test__Replace_fsys_hack(html, html);}
public void Test__Replace_fsys_hack(String html, String expd) {
byte[] actl = Http_server_wkr_fsys_hack_.Replace(Bry_.new_u8(html));
Gftest.Eq__ary__lines(expd, actl);
}
}

43
400_xowa/src/gplx/xowa/apps/servers/http/Http_server_wkr_tst.java
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@ -1,43 +0,0 @@
/*
XOWA: the XOWA Offline Wiki Application
Copyright (C) 2012-2017 gnosygnu@gmail.com
XOWA is licensed under the terms of the General Public License (GPL) Version 3,
or alternatively under the terms of the Apache License Version 2.0.
You may use XOWA according to either of these licenses as is most appropriate
for your project on a case-by-case basis.
The terms of each license can be found in the source code repository:
GPLv3 License: https://github.com/gnosygnu/xowa/blob/master/LICENSE-GPLv3.txt
Apache License: https://github.com/gnosygnu/xowa/blob/master/LICENSE-APACHE2.txt
*/
package gplx.xowa.apps.servers.http; import gplx.*; import gplx.xowa.*; import gplx.xowa.apps.*; import gplx.xowa.apps.servers.*;
import org.junit.*; import gplx.core.tests.*;
public class Http_server_wkr_tst {
private final Http_server_wkr_fxt fxt = new Http_server_wkr_fxt();
@Test public void File_bgn_missing() { // "file:" missing
fxt.Test__Replace_fsys_hack("src='file////home/lnxusr/xowa/file/'");
}
@Test public void One() {
fxt.Test__Replace_fsys_hack("'file:////home/lnxusr/xowa/file/A.png'", "'/fsys/file/A.png'");
}
@Test public void Many() {
fxt.Test__Replace_fsys_hack("a 'file:////home/lnxusr/xowa/file/A.png' b \"file:////home/lnxusr/xowa/file/B.png\" c", "a '/fsys/file/A.png' b \"/fsys/file/B.png\" c");
}
@Test public void Non_file() {
fxt.Test__Replace_fsys_hack("a file:////home/lnxusr/xowa/bin/any/xowa/file/app.window/app_icon.png b", "a /fsys/bin/any/xowa/file/app.window/app_icon.png b");
}
@Test public void Url() {
fxt.Test__Replace_fsys_hack("url(file:////home/lnxusr/xowa/anonymous/wiki/www.wikidata.org/html/logo.png)", "url(/fsys/anonymous/wiki/www.wikidata.org/html/logo.png)");
}
}
class Http_server_wkr_fxt {
private static final byte[] root_dir_http = Bry_.new_a7("file:////home/lnxusr/xowa/");
public void Test__Replace_fsys_hack(String html) {Test__Replace_fsys_hack(html, html);}
public void Test__Replace_fsys_hack(String html, String expd) {
byte[] actl = Bry_.Replace_many(Bry_.new_u8(html), root_dir_http, Http_server_wkr.Url__fsys);
Gftest.Eq__ary__lines(expd, actl);
}
}