Add new URL parser to replace inaccurate regex detection
Fix inaccurate URL detection and enhance URL detection for non-English character. Fix #3912, fix #3353, fix #4643, fix #5029, fix #6155, fix #7791, fix #8634, close #8921
This commit is contained in:
Udo Hoffmann
Don HO
parent
5aab1ddbf1
commit
401bfcb0cd
@ -250,7 +250,7 @@ CXX = $(CROSS_COMPILE)g++
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CXXFLAGS = $(INCLUDESPECIAL) -DTIXML_USE_STL -DTIXMLA_USE_STL $(UNICODE) -std=c++17 -fpermissive
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INCLUDES = $(patsubst %,-I%,$(DIRS)) -I./include
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LDFLAGS = -Wl,--subsystem,windows -municode -mwindows
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LIBS = -lcomdlg32 -lcomctl32 -lgdi32 -lole32 -loleacc -lshell32 -lshlwapi -ldbghelp -lversion -lcrypt32 -lsensapi -lwintrust -lwinmm -luuid
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LIBS = -lcomdlg32 -lcomctl32 -lgdi32 -lole32 -loleacc -lshell32 -lshlwapi -ldbghelp -lversion -lcrypt32 -lsensapi -lwininet -lwintrust -lwinmm -luuid
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RC = $(CROSS_COMPILE)windres
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@ -27,6 +27,7 @@
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#include <time.h>
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#include <shlwapi.h>
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#include <wininet.h>
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#include "Notepad_plus.h"
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#include "Notepad_plus_Window.h"
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#include "FileDialog.h"
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@ -2514,6 +2515,394 @@ void Notepad_plus::setUniModeText()
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_statusBar.setText(uniModeTextString.c_str(), STATUSBAR_UNICODE_TYPE);
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}
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bool isUrlSchemeStartChar(TCHAR const c)
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{
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return ((c >= 'A') && (c <= 'Z'))
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|| ((c >= 'a') && (c <= 'z'));
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}
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bool isUrlSchemeDelimiter(TCHAR const c) // characters allowed immedeately before scheme
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{
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return ! (((c >= '0') && (c <= '9'))
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|| ((c >= 'A') && (c <= 'Z'))
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|| ((c >= 'a') && (c <= 'z'))
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|| (c == '_'));
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}
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bool isUrlTextChar(TCHAR const c)
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{
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if (c <= ' ') return false;
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switch (c)
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{
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case '"':
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case '#':
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case '\'':
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case '<':
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case '>':
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case '?':
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case '\0x7f':
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return false;
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}
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return true;
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}
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bool isUrlQueryDelimiter(TCHAR const c)
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{
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switch(c)
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{
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case '&':
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case '+':
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case '=':
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case ';':
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return true;
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}
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return false;
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}
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bool isUrlSchemeSupported(INTERNET_SCHEME s)
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{
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switch (s)
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{
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case INTERNET_SCHEME_FTP:
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case INTERNET_SCHEME_HTTP:
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case INTERNET_SCHEME_HTTPS:
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case INTERNET_SCHEME_MAILTO:
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case INTERNET_SCHEME_FILE:
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return true;
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}
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return false;
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}
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// scanToUrlStart searches for a possible URL in <text>.
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// If a possible URL is found, then:
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// - True is returned.
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// - The number of characters between <text[start]> and the beginning of the URL candidate is stored in <distance>.
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// - The length of the URL scheme is stored in <schemeLength>.
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// If no URL is found, then:
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// - False is returned.
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// - The number of characters between <text[start]> and the end of text is stored in <distance>.
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bool scanToUrlStart(TCHAR *text, int textLen, int start, int* distance, int* schemeLength)
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{
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int p = start;
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int p0 = 0;
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enum {sUnknown, sScheme} s = sUnknown;
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while (p < textLen)
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{
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switch (s)
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{
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case sUnknown:
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if (isUrlSchemeStartChar(text [p]) && ((p == 0) || isUrlSchemeDelimiter(text [p - 1])))
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{
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p0 = p;
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s = sScheme;
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}
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break;
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case sScheme:
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if (text [p] == ':')
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{
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*distance = p0 - start;
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*schemeLength = p - p0 + 1;
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return true;
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}
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if (!isUrlSchemeStartChar(text [p]))
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s = sUnknown;
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break;
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}
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p++;
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}
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*schemeLength = 0;
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*distance = p - start;
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return false;
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}
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// scanToUrlEnd searches the end of an URL, coarsly parsing its main parts HostAndPath, Query and Fragment.
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//
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// In the query part, a simple pattern is enforced, to avoid that everything goes through as a query.
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// The pattern is kept simple, since there seem to be many different forms of queries used in the world.
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// The objective here is not to detect whether or not a query is malformed. The objective is, to let through
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// most of the real world's queries, and to sort out what is certainly not a query.
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//
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// The approach is:
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// - A query begins with '?', followed by any number of values,
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// which are separated by a single delimiter character '&', '+', '=' or ';'.
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// - Each value may be enclosed in single or double quotes.
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//
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// The query pattern going through looks like this:
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// - ?abc;def;fgh="i j k"&'l m n'+opq
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//
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void scanToUrlEnd(TCHAR *text, int textLen, int start, int* distance)
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{
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int p = start;
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TCHAR q = 0;
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enum {sHostAndPath, sQuery, sQueryAfterDelimiter, sQueryQuotes, sQueryAfterQuotes, sFragment} s = sHostAndPath;
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while (p < textLen)
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{
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switch (s)
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{
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case sHostAndPath:
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if (text [p] == '?')
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s = sQuery;
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else if (text [p] == '#')
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s = sFragment;
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else if (!isUrlTextChar (text [p]))
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{
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*distance = p - start;
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return;
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}
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break;
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case sQuery:
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if (text [p] == '#')
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s = sFragment;
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else if (isUrlQueryDelimiter (text [p]))
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s = sQueryAfterDelimiter;
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else if (!isUrlTextChar(text [p]))
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{
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*distance = p - start;
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return;
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}
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break;
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case sQueryAfterDelimiter:
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if ((text [p] == '\'') || (text [p] == '"'))
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{
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q = text [p];
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s = sQueryQuotes;
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}
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else if (isUrlTextChar(text [p]))
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s = sQuery;
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else
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{
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*distance = p - start;
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return;
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}
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break;
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case sQueryQuotes:
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if (text [p] < ' ')
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{
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*distance = p - start;
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return;
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}
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if (text [p] == q)
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s = sQueryAfterQuotes;
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break;
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case sQueryAfterQuotes:
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if (isUrlQueryDelimiter (text [p]))
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s = sQueryAfterDelimiter;
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else
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{
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*distance = p - start;
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return;
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}
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break;
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case sFragment:
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if (!isUrlTextChar(text [p]))
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{
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*distance = p - start;
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return;
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}
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break;
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}
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p++;
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}
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*distance = p - start;
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}
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// removeUnwantedTrailingCharFromUrl removes a single unwanted trailing character from an URL.
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// It has to be called repeatedly, until it returns false, meaning that all unwanted characters are gone.
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bool removeUnwantedTrailingCharFromUrl (TCHAR const *text, int* length)
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{
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int l = *length - 1;
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if (l <= 0) return false;
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{ // remove unwanted single characters
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const TCHAR *singleChars = L".,:;?!#";
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for (int i = 0; singleChars [i]; i++)
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if (text [l] == singleChars [i])
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{
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*length = l;
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return true;
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}
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}
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{ // remove unwanted closing parenthesis
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const TCHAR *closingParenthesis = L")]}>";
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const TCHAR *openingParenthesis = L"([{<";
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for (int i = 0; closingParenthesis [i]; i++)
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if (text [l] == closingParenthesis [i])
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{
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int count = 1;
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for (int j = l - 1; j >= 0; j--)
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{
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if (text [j] == closingParenthesis [i])
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count++;
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if (text [j] == openingParenthesis [i])
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count--;
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}
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if (count == 0)
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return false;
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*length = l;
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return true;
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}
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}
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{ // remove unwanted quotes
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const TCHAR *quotes = L"\"'`";
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for (int i = 0; quotes [i]; i++)
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{
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if (text [l] == quotes [i])
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{
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int count = 0;
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for (int j = l - 1; j >= 0; j--)
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if (text [j] == quotes [i])
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count++;
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if (count & 1)
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return false;
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*length = l;
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return true;
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}
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}
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}
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return false;
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}
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bool isSlashOrBackslash(TCHAR const c)
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{
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return (c == '/') || (c == '\\');
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}
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bool isFilenameChar(TCHAR const c, bool const quoted)
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{
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if (c < ' ')
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return false;
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if ((c == ' ') && (!quoted))
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return false;
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switch (c)
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{
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case '"':
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case '%':
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case '*':
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case '/':
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case '<':
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case '>':
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case ':':
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case '?':
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case '|':
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case '\\':
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case '\0x7f':
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return false;
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}
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return true;
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}
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// scanToFileEnd searches the end of an Filename, coarsly parsing it into prefix and name.
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// The prefix parsing is done to avoid multiple colons.
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// The <quoted> parameter specifies, whether spaces are allowed.
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void scanToFileEnd(TCHAR *text, int textLen, int start, bool quoted, int* distance)
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{
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int p = start;
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enum {sStart, sPrefix, sColon, sName} s = sStart;
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while (p < textLen)
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{
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switch (s)
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{
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case sStart:
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if (isFilenameChar (text [p], false))
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s = sPrefix;
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else if (!isSlashOrBackslash(text [p]))
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{
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*distance = p - start;
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return;
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}
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break;
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case sPrefix:
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if (isSlashOrBackslash(text [p]) || isFilenameChar(text [p], quoted))
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s = sName;
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else if (text [p] == ':')
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s = sColon;
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else
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{
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*distance = p - start;
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return;
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}
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break;
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case sColon:
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if (isSlashOrBackslash(text[p]))
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s = sName;
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else
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{
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*distance = p - start;
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return;
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}
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break;
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case sName:
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if (! (isSlashOrBackslash(text [p]) || isFilenameChar(text [p], quoted)))
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{
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*distance = p - start;
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return;
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}
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break;
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}
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p++;
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}
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*distance = p - start;
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}
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// isUrl checks, whether there is a valid URL at <text [start]>.
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// If yes:
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// - True is returned.
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// - The length of the URL is stored in <segmentLen>.
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// If no:
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// - False is returned.
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// - The number of characters between <text[start]> and the next URL is stored in <segementLen>.
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// - If no URL is found at all, then the number of characters between <text[start]> and the end of text is stored in <segmentLen>.
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bool isUrl(TCHAR * text, int textLen, int start, int* segmentLen)
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{
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int dist = 0, schemeLen = 0;
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if (scanToUrlStart(text, textLen, start, & dist, & schemeLen))
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{
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if (dist)
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{
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*segmentLen = dist;
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return false;
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}
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int len = 0;
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scanToUrlEnd (text, textLen, start + schemeLen, & len);
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if (len)
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{
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len += schemeLen;
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URL_COMPONENTS url;
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memset (& url, 0, sizeof(url));
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url.dwStructSize = sizeof(url);
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bool r = InternetCrackUrl(& text [start], len, 0, & url) && isUrlSchemeSupported(url.nScheme);
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if (r)
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{
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while (removeUnwantedTrailingCharFromUrl (& text [start], & len));
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if (url.nScheme == INTERNET_SCHEME_FILE)
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{
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scanToFileEnd (text, textLen, start + schemeLen, (start > 0) && (text [start - 1] == '"'), & len);
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len += schemeLen;
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}
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*segmentLen = len;
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return true;
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}
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}
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len = 1;
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int lMax = textLen - start;
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while (isUrlSchemeStartChar(text[start+len]) && (len < lMax)) len++;
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*segmentLen = len;
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return false;
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}
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*segmentLen = dist;
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return false;
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}
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void Notepad_plus::addHotSpot(ScintillaEditView* view)
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{
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@ -2547,23 +2936,38 @@ void Notepad_plus::addHotSpot(ScintillaEditView* view)
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LRESULT indicFore = pView->execute(SCI_STYLEGETFORE, STYLE_DEFAULT);
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pView->execute(SCI_SETINDICATORVALUE, indicFore);
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pView->execute(SCI_SETSEARCHFLAGS, SCFIND_REGEXP|SCFIND_POSIX);
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pView->execute(SCI_SETTARGETRANGE, startPos, endPos);
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int posFound = static_cast<int32_t>(pView->execute(SCI_SEARCHINTARGET, strlen(URL_REG_EXPR), reinterpret_cast<LPARAM>(URL_REG_EXPR)));
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while (posFound != -1 && posFound != -2)
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UINT cp = static_cast<UINT>(pView->execute(SCI_GETCODEPAGE));
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char *encodedText = new char[endPos - startPos + 1];
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pView->getText(encodedText, startPos, endPos);
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TCHAR *wideText = new TCHAR[endPos - startPos + 1];
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int wideTextLen = MultiByteToWideChar(cp, 0, encodedText, endPos - startPos + 1, (LPWSTR) wideText, endPos - startPos + 1) - 1;
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delete[] encodedText;
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if (wideTextLen > 0)
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{
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int end = int(pView->execute(SCI_GETTARGETEND));
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int foundTextLen = end - posFound;
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if (posFound > startPos)
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pView->execute(SCI_INDICATORCLEARRANGE, startPos, posFound - startPos);
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pView->execute(SCI_INDICATORFILLRANGE, posFound, foundTextLen);
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startPos = posFound + foundTextLen;
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pView->execute(SCI_SETTARGETRANGE, startPos, endPos);
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posFound = static_cast<int32_t>(pView->execute(SCI_SEARCHINTARGET, strlen(URL_REG_EXPR), reinterpret_cast<LPARAM>(URL_REG_EXPR)));
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int startWide = 0;
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int lenWide = 0;
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int startEncoded = 0;
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int lenEncoded = 0;
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while (true)
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{
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bool r = isUrl(wideText, wideTextLen, startWide, & lenWide);
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if (lenWide <= 0)
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break;
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assert ((startWide + lenWide) <= wideTextLen);
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lenEncoded = WideCharToMultiByte(cp, 0, & wideText [startWide], lenWide, NULL, 0, NULL, NULL);
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if (r)
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pView->execute(SCI_INDICATORFILLRANGE, startEncoded + startPos, lenEncoded);
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else
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pView->execute(SCI_INDICATORCLEARRANGE, startEncoded + startPos, lenEncoded);
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startWide += lenWide;
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startEncoded += lenEncoded;
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if ((startWide >= wideTextLen) || ((startEncoded + startPos) >= endPos))
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break;
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}
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assert ((startEncoded + startPos) == endPos);
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assert (startWide == wideTextLen);
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}
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if (endPos > startPos)
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pView->execute(SCI_INDICATORCLEARRANGE, startPos, endPos - startPos);
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delete[] wideText;
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}
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bool Notepad_plus::isConditionExprLine(int lineNumber)
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@ -61,8 +61,6 @@
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#define MENU 0x01
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#define TOOLBAR 0x02
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#define URL_REG_EXPR "[A-Za-z]+://[A-Za-z0-9_\\-\\+~.:?&@=/%#,;\\{\\}\\(\\)\\[\\]\\|\\*\\!\\\\]+"
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enum FileTransferMode {
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TransferClone = 0x01,
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TransferMove = 0x02
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@ -111,7 +111,7 @@
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</ClCompile>
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<Link>
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<AdditionalOptions>/fixed:no %(AdditionalOptions)</AdditionalOptions>
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<AdditionalDependencies>comctl32.lib;shlwapi.lib;shell32.lib;Oleacc.lib;Dbghelp.lib;Version.lib;Crypt32.lib;wintrust.lib;Sensapi.lib;winmm.lib;%(AdditionalDependencies)</AdditionalDependencies>
|
||||
<AdditionalDependencies>comctl32.lib;shlwapi.lib;shell32.lib;Oleacc.lib;Dbghelp.lib;Version.lib;Crypt32.lib;wintrust.lib;Sensapi.lib;winmm.lib;wininet.lib;%(AdditionalDependencies)</AdditionalDependencies>
|
||||
<ShowProgress>LinkVerboseLib</ShowProgress>
|
||||
<OutputFile>$(OutDir)notepad++.exe</OutputFile>
|
||||
<Version>1.0</Version>
|
||||
@ -149,7 +149,7 @@
|
||||
</ClCompile>
|
||||
<Link>
|
||||
<AdditionalOptions>/fixed:no %(AdditionalOptions)</AdditionalOptions>
|
||||
<AdditionalDependencies>comctl32.lib;shlwapi.lib;shell32.lib;Oleacc.lib;Dbghelp.lib;Version.lib;Crypt32.lib;wintrust.lib;Sensapi.lib;winmm.lib;%(AdditionalDependencies)</AdditionalDependencies>
|
||||
<AdditionalDependencies>comctl32.lib;shlwapi.lib;shell32.lib;Oleacc.lib;Dbghelp.lib;Version.lib;Crypt32.lib;wintrust.lib;Sensapi.lib;winmm.lib;wininet.lib;%(AdditionalDependencies)</AdditionalDependencies>
|
||||
<ShowProgress>LinkVerboseLib</ShowProgress>
|
||||
<OutputFile>$(OutDir)notepad++.exe</OutputFile>
|
||||
<Version>1.0</Version>
|
||||
@ -192,7 +192,7 @@
|
||||
<ConformanceMode>true</ConformanceMode>
|
||||
</ClCompile>
|
||||
<Link>
|
||||
<AdditionalDependencies>comctl32.lib;shlwapi.lib;shell32.lib;Oleacc.lib;Dbghelp.lib;Version.lib;Crypt32.lib;wintrust.lib;Sensapi.lib;winmm.lib;%(AdditionalDependencies)</AdditionalDependencies>
|
||||
<AdditionalDependencies>comctl32.lib;shlwapi.lib;shell32.lib;Oleacc.lib;Dbghelp.lib;Version.lib;Crypt32.lib;wintrust.lib;Sensapi.lib;winmm.lib;wininet.lib;%(AdditionalDependencies)</AdditionalDependencies>
|
||||
<ShowProgress>LinkVerboseLib</ShowProgress>
|
||||
<OutputFile>$(OutDir)notepad++.exe</OutputFile>
|
||||
<Version>1.0</Version>
|
||||
@ -244,7 +244,7 @@ copy ..\src\contextMenu.xml ..\bin\contextMenu.xml
|
||||
<ConformanceMode>true</ConformanceMode>
|
||||
</ClCompile>
|
||||
<Link>
|
||||
<AdditionalDependencies>comctl32.lib;shlwapi.lib;shell32.lib;Oleacc.lib;Dbghelp.lib;Version.lib;Crypt32.lib;wintrust.lib;Sensapi.lib;winmm.lib;%(AdditionalDependencies)</AdditionalDependencies>
|
||||
<AdditionalDependencies>comctl32.lib;shlwapi.lib;shell32.lib;Oleacc.lib;Dbghelp.lib;Version.lib;Crypt32.lib;wintrust.lib;Sensapi.lib;winmm.lib;wininet.lib;%(AdditionalDependencies)</AdditionalDependencies>
|
||||
<ShowProgress>LinkVerboseLib</ShowProgress>
|
||||
<OutputFile>$(OutDir)notepad++.exe</OutputFile>
|
||||
<Version>1.0</Version>
|
||||
|
||||
Loading…
Reference in New Issue
Block a user