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zbrowser.ino
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/*
Copyright 2016-2024 Bo Zimmerman
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
#ifdef INCLUDE_SD_SHELL
static void initSDShell()
{
if(SD.begin())
{
debugPrintf("External SD card initialized.\r\n");
}
}
ZBrowser::~ZBrowser()
{
#ifdef INCLUDE_FTP
if(ftpHost != 0)
{
delete ftpHost;
ftpHost = 0;
}
#endif
}
void ZBrowser::switchTo()
{
debugPrintf("\n\rMode:Browse\r\n");
currMode=&browseMode;
init();
}
void ZBrowser::init()
{
serial.setFlowControlType(commandMode.serial.getFlowControlType());
serial.setPetsciiMode(commandMode.serial.isPetsciiMode());
savedEcho=commandMode.doEcho;
commandMode.doEcho=true;
serial.setXON(true);
showMenu=true;
EOLN=commandMode.EOLN;
strcpy(EOLNC,commandMode.EOLN.c_str());
currState = ZBROW_MAIN;
lastNumber=0;
lastString="";
}
void ZBrowser::serialIncoming()
{
bool crReceived=commandMode.readSerialStream();
commandMode.clearPlusProgress(); // re-check the plus-escape mode
if(crReceived)
{
if(commandMode.doEcho)
serial.prints(EOLN);
String line =commandMode.getNextSerialCommand();
doModeCommand(line,true);
}
}
void ZBrowser::switchBackToCommandMode()
{
debugPrintf("\r\nMode:Command\r\n");
commandMode.doEcho=savedEcho;
currMode = &commandMode;
}
String ZBrowser::fixPathNoSlash(String p)
{
String finalPath="";
int lastX=0;
uint16_t backStack[256] = {0};
backStack[0]=1;
int backX=1;
for(int i=0;i<p.length() && i<512;i++)
{
if(p[i]=='/')
{
if(i>lastX)
{
String sub=p.substring(lastX,i);
if(sub.equals("."))
{
// do nothing
}
else
if(sub.equals(".."))
{
if(backX > 1)
finalPath = finalPath.substring(0,backStack[--backX]);
}
else
if(sub.length()>0)
{
finalPath += sub;
finalPath += "/";
backStack[++backX]=finalPath.length();
}
}
else
if((i==0) && (i<p.length()-1))
finalPath = "/";
lastX=i+1;
}
}
if(lastX<p.length())
{
String sub=p.substring(lastX);
if(sub.equals("."))
{
// do nothing
}
else
if(sub.equals(".."))
{
if(backX > 1)
finalPath = finalPath.substring(0,backStack[--backX]);
}
else
{
finalPath += sub;
finalPath += "/"; // why this?! -- oh, so it can be removed below?
}
}
if(finalPath.length()==0)
return "/";
if(finalPath.length()>1)
finalPath.remove(finalPath.length()-1);
return finalPath;
}
String ZBrowser::stripDir(String p)
{
int x=p.lastIndexOf("/");
if(x<=0)
return "/";
return p.substring(0,x);
}
String ZBrowser::stripFilename(String p)
{
int x=p.lastIndexOf("/");
if((x<0)||(x==p.length()-1))
return "";
return p.substring(x+1);
}
String ZBrowser::cleanFirstArg(String line)
{
int state=0;
String arg="";
for(int i=0;i<line.length();i++)
{
if((line[i]=='\\')&&(i<line.length()-1))
{
i++;
arg += line[i];
}
else
if(line[i]=='\"')
{
if((state == 0)&&(arg.length()==0))
state=1;
else
if(state==1)
break;
else
arg += line[i];
}
else
if(line[i] == ' ')
{
if(state == 0)
break;
arg += line[i];
}
else
{
arg += line[i];
}
}
return arg;
}
String ZBrowser::cleanRemainArg(String line)
{
int state=0;
int ct=0;
for(int i=0;i<line.length();i++)
{
if((line[i]=='\\')&&(i<line.length()-1))
{
i++;
ct++;
}
else
if(line[i]=='\"')
{
if((state == 0)&&(ct==0))
state=1;
else
if(state==1)
{
String remain=line.substring(i+1);
remain.trim();
return cleanOneArg(remain);
}
else
ct++;
}
else
if(line[i] == ' ')
{
if(state == 0)
{
String remain=line.substring(i+1);
remain.trim();
return cleanOneArg(remain);
}
ct++;
}
else
ct++;
}
return "";
}
int ZBrowser::argNum(String argLetters, char argLetter, int def)
{
int num = 0;
int x = argLetters.indexOf(argLetter);
if(x >= 0)
{
x++;
String cnStr = "";
while((x < argLetters.length())&&(strchr("0123456789",argLetters[x])!=null))
cnStr += argLetters[x++];
num = atoi(argLetters.c_str());
}
return num;
}
String ZBrowser::cleanOneArg(String line)
{
int state=0;
String arg="";
for(int i=0;i<line.length();i++)
{
if((line[i]=='\\')&&(i<line.length()-1))
{
i++;
arg += line[i];
}
else
if(line[i]=='\"')
{
if((state == 0)&&(arg.length()==0))
state=1;
else
if(state==1)
break;
else
arg += line[i];
}
else
arg += line[i];
}
return arg;
}
String ZBrowser::makePath(String addendum)
{
if(addendum.length()>0)
{
if(addendum.startsWith("/"))
return fixPathNoSlash(addendum);
else
return fixPathNoSlash(path + addendum);
}
return fixPathNoSlash(path);
}
bool ZBrowser::isMask(String mask)
{
return (mask.indexOf("*")>=0) || (mask.indexOf("?")>=0);
}
String ZBrowser::stripArgs(String line, String &argLetters)
{
while(line.startsWith("-"))
{
int x=line.indexOf(' ');
if(x<0)
{
argLetters = line.substring(1);
return "";
}
argLetters += line.substring(1,x);
line = line.substring(x+1);
line.trim();
}
return line;
}
bool ZBrowser::copyFiles(String source, String mask, String target, bool recurse, bool overwrite)
{
File root = SD.open(source);
if(!root)
{
if(!quiet)
serial.printf("Unknown path: %s%s",source.c_str(),EOLNC);
return false;
}
if(root.isDirectory())
{
if(!SD.exists(target)) // cp d a
{
SD.mkdir(target);
}
else
{
File DD=SD.open(target); //cp d d2, cp d f
if(!DD.isDirectory())
{
if(!quiet)
serial.printf("File exists: %s%s",DD.name(),EOLNC);
DD.close();
return false;
}
}
for(File file = root.openNextFile(); file != null; file = root.openNextFile())
{
if(matches(file.name(), mask))
{
debugPrintf("file matched:%s\r\n",file.name());
String tpath = target;
if(file.isDirectory())
{
if(!recurse)
{
if(!quiet)
serial.printf("Skipping: %s%s",file.name(),EOLNC);
}
else
{
if(!tpath.endsWith("/"))
tpath += "/";
tpath += file.name();
}
}
copyFiles(source + "/" + file.name(),"",tpath,false,overwrite);
}
}
}
else
{
String tpath = target;
if(SD.exists(tpath))
{
File DD=SD.open(tpath);
if(DD.isDirectory()) // cp f d, cp f .
{
if(!tpath.endsWith("/"))
tpath += "/";
tpath += root.name();
debugPrintf("file xform to file in dir:%s\r\n",tpath.c_str());
}
DD.close();
}
if(SD.exists(tpath))
{
File DD=SD.open(tpath);
if(strcmp(DD.name(),root.name())==0)
{
if(!quiet)
serial.printf("File exists: %s%s",DD.name(),EOLNC);
DD.close();
return false;
}
else
if(!overwrite) // cp f a, cp f e
{
if(!quiet)
serial.printf("File exists: %s%s",DD.name(),EOLNC);
DD.close();
return false;
}
else
{
DD.close();
SD.remove(tpath);
}
}
size_t len=root.size();
File tfile = SD.open(tpath,FILE_WRITE);
for(int i=0;i<len;i++)
{
uint8_t c=root.read();
tfile.write(c);
}
tfile.close();
}
return true;
}
void ZBrowser::makeFileList(String ***l, int *n, String p, String mask, bool recurse)
{
File root = SD.open(p);
if(!root)
{
if(!quiet)
serial.printf("Unknown path: %s%s",p.c_str(),EOLNC);
}
else
if(root.isDirectory())
{
File file = root.openNextFile();
while(file)
{
if(matches(file.name(), mask))
{
String fileName = file.name();
if(file.isDirectory())
{
if(recurse)
{
file = root.openNextFile();
makeFileList(l,n,p + "/" + fileName.c_str(),"*",recurse);
}
}
else
{
file = root.openNextFile();
String **newList = (String **)malloc(sizeof(String *)*(*n+1));
for(int i=0;i<*n;i++)
newList[i]=(*l)[i];
free(*l);
newList[*n]=new String(fileName.c_str());
(*n)++;
*l=newList;
}
}
else
file = root.openNextFile();
}
}
}
bool ZBrowser::deleteFile(String p, String mask, bool recurse)
{
bool success = true;
File root = SD.open(p);
if(!root)
{
if(!quiet)
serial.printf("Unknown path: %s%s",p.c_str(),EOLNC);
success = false;
}
else
if(root.isDirectory())
{
File file = root.openNextFile();
while(file)
{
if(matches(file.name(), mask))
{
String fileName = file.name();
String delFile = p + "/" + fileName;
if(file.isDirectory())
{
if(recurse)
{
file = root.openNextFile();
deleteFile(delFile,"*",recurse);
if(!SD.rmdir(delFile))
{
if(!quiet)
serial.printf("Unable to delete: %s%s",delFile.c_str(),EOLNC);
success = false;
}
}
else
{
if(!quiet)
serial.printf("Skipping: %s%s",delFile.c_str(),EOLNC);
file = root.openNextFile();
}
}
else
{
file = root.openNextFile();
if(!SD.remove(delFile))
{
if(!quiet)
serial.printf("Unable to delete: %s%s",delFile.c_str(),EOLNC);
success = false;
}
}
}
else
file = root.openNextFile();
}
}
return success;
}
bool ZBrowser::matches(String fname, String mask)
{
if((mask.length()==0)||(mask.equals("*")))
return true;
if(!isMask(mask))
return mask.equals(fname);
int f=0;
for(int i=0;i<mask.length();i++)
{
if(f>=fname.length())
return false;
if(mask[i]=='?')
f++;
else
if(mask[i]=='*')
{
if(i==mask.length()-1)
return true;
int remain=mask.length()-i-1;
f=fname.length()-remain;
}
else
if(mask[i]!=fname[f++])
return false;
}
return true;
}
void ZBrowser::showDirectory(String p, String mask, String prefix, bool recurse)
{
File root = SD.open(p);
if(!root)
{
if(!quiet)
serial.printf("Unknown path: %s%s",p.c_str(),EOLNC);
}
else
if(root.isDirectory())
{
File file = root.openNextFile();
while(file)
{
if(matches(file.name(), mask))
{
debugPrintf("file matched:%s\r\n",file.name());
if(file.isDirectory())
{
serial.printf("%sd %s%s",prefix.c_str(),file.name(),EOLNC);
if(recurse)
{
String newPrefix = prefix + " ";
showDirectory(p + "/" + file.name(), mask, newPrefix, recurse);
}
}
else
serial.printf("%s %s %lu%s",prefix.c_str(),file.name(),file.size(),EOLNC);
}
else
debugPrintf("file unmatched:%s (%s)\r\n",file.name(),mask.c_str());
file = root.openNextFile();
}
}
else
serial.printf(" %s %lu%s",root.name(),root.size(),EOLNC);
}
bool ZBrowser::doDirCommand(String &line, bool showShellOutput)
{
String argLetters = "";
line = stripArgs(line,argLetters);
argLetters.toLowerCase();
bool recurse=argLetters.indexOf('r')>=0;
String rawPath = makePath(cleanOneArg(line));
String p;
String mask;
if((line.length()==0)||(line.endsWith("/")))
{
p=rawPath;
mask="";
}
else
{
mask=stripFilename(rawPath);
if((mask.length()>0)&&(isMask(mask)))
p=stripDir(rawPath);
else
{
mask="";
p=rawPath;
}
}
showDirectory(p,mask,"",recurse);
return true;
}
bool ZBrowser::doMkDirCommand(String &line, bool showShellOutput)
{
String p = makePath(cleanOneArg(line));
debugPrintf("md:%s\r\n",p.c_str());
if((p.length() < 2) || isMask(p) || !SD.mkdir(p))
{
if(!quiet)
serial.printf("Illegal path: %s%s",p.c_str(),EOLNC);
return false;
}
return true;
}
bool ZBrowser::doCdDirCommand(String &line, bool showShellOutput)
{
bool success = true;
String p = makePath(cleanOneArg(line));
debugPrintf("cd:%s\r\n",p.c_str());
if(p.length()==0)
{
if(!quiet)
serial.printf("Current path: %s%s",p.c_str(),EOLNC);
}
else
if(p == "/")
path = "/";
else
if(p.length()>1)
{
File root = SD.open(p);
if(!root)
{
if(!quiet)
serial.printf("Unknown path: %s%s",p.c_str(),EOLNC);
success = false;
}
else
if(!root.isDirectory())
{
if(!quiet)
serial.printf("Illegal path: %s%s",p.c_str(),EOLNC);
success = false;
}
else
path = p + "/";
}
return success;
}
bool ZBrowser::doRmDirCommand(String &line, bool showShellOutput)
{
bool success=true;
String p = makePath(cleanOneArg(line));
debugPrintf("rd:%s\r\n",p.c_str());
File root = SD.open(p);
if(!root)
{
if(!quiet)
serial.printf("Unknown path: %s%s",p.c_str(),EOLNC);
success = false;
}
else
if(!root.isDirectory())
{
if(!quiet)
serial.printf("Not a directory: %s%s",p.c_str(),EOLNC);
}
else
if(!SD.rmdir(p))
{
if(!quiet)
serial.printf("Failed to remove directory: %s%s",p.c_str(),EOLNC);
success = false;
}
return success;
}
bool ZBrowser::doCatCommand(String &line, bool showShellOutput)
{
bool success = true;
String argLetters = "";
line = stripArgs(line,argLetters);
argLetters.toLowerCase();
bool dohex=argLetters.indexOf('h')>=0;
String p = makePath(cleanOneArg(line));
debugPrintf("cat:%s\r\n",p.c_str());
File root = SD.open(p);
if(!root)
{
if(!quiet)
serial.printf("Unknown path: %s%s",p.c_str(),EOLNC);
success = false;
}
else
if(root.isDirectory())
{
if(!quiet)
serial.printf("Is a directory: %s%s",p.c_str(),EOLNC);
success = false;
}
else
{
root.close();
File f=SD.open(p, FILE_READ);
int hexct = 0;
for(int i=0;i<f.size();i++)
{
if(serial.available())
{
if(serial.read() == ' ')
break;
}
if(dohex)
{
serial.print(TOHEX(f.read()));
if(++hexct > 15)
{
serial.print(EOLNC);
hexct=0;
}
else
serial.write(' ');
}
else
serial.write(f.read());
}
serial.print(EOLNC);
f.close();
}
return success;
}
bool ZBrowser::doXGetCommand(String &line, bool showShellOutput)
{
bool success=true;
String p = makePath(cleanOneArg(line));
debugPrintf("xget:%s\r\n",p.c_str());
File root = SD.open(p);
if(!root)
{
if(!quiet)
serial.printf("Unknown path: %s%s",p.c_str(),EOLNC);
success = false;
}
else
if(root.isDirectory())
{
if(!quiet)
serial.printf("Is a directory: %s%s",p.c_str(),EOLNC);
root.close();
success = false;
}
else
{
root.close();
File rfile = SD.open(p, FILE_READ);
String errors="";
if(!quiet)
serial.printf("Go to XModem download.%s",EOLNC);
serial.flushAlways();
if(xDownload(commandMode.getFlowControlType(), rfile,errors))
{
rfile.close();
delay(2000);
if(!quiet)
serial.printf("Download completed successfully.%s",EOLNC);
}
else
{
rfile.close();
delay(2000);
if(!quiet)
serial.printf("Download failed (%s).%s",errors.c_str(),EOLNC);
success = false;
}
}
return success;
}
bool ZBrowser::doXPutCommand(String &line, bool showShellOutput)
{
bool success=true;
String p = makePath(cleanOneArg(line));
debugPrintf("xput:%s\r\n",p.c_str());
File root = SD.open(p);
if(root)
{
if(!quiet)
serial.printf("File exists: %s%s",root.name(),EOLNC);
root.close();
success = false;
}
else
{
String dirNm=stripDir(p);
File rootDir=SD.open(dirNm);
if((!rootDir)||(!rootDir.isDirectory()))
{
if(!quiet)
serial.printf("Path doesn't exist: %s%s",dirNm.c_str(),EOLNC);
if(rootDir)
rootDir.close();
success = false;
}
else
{
File rfile = SD.open(p, FILE_WRITE);
String errors="";
if(!quiet)
serial.printf("Go to XModem upload.%s",EOLNC);
serial.flushAlways();
if(xUpload(commandMode.getFlowControlType(), rfile,errors))
{
rfile.close();
delay(2000);
if(!quiet)
serial.printf("Upload completed successfully.%s",EOLNC);
}
else
{
rfile.close();
delay(2000);
if(!quiet)
serial.printf("Upload failed (%s).%s",errors.c_str(),EOLNC);
success = false;
}
}
}
return success;
}
bool ZBrowser::doYGetCommand(String &line, bool showShellOutput)
{
bool success=true;
String p = makePath(cleanOneArg(line));
debugPrintf("yget:%s\r\n",p.c_str());
File root = SD.open(p);
if(!root)
{
if(!quiet)
serial.printf("Unknown path: %s%s",p.c_str(),EOLNC);
success = false;
}
else
if(root.isDirectory())
{
if(!quiet)
serial.printf("Is not a directory: %s%s",p.c_str(),EOLNC);
root.close();
success = false;
}
else
{
String errors="";
if(!quiet)
serial.printf("Go to YModem download.%s",EOLNC);
serial.flushAlways();
if(yDownload(&SD, commandMode.getFlowControlType(), root,errors))
{
delay(2000);
if(!quiet)
serial.printf("Download completed successfully.%s",EOLNC);
}
else
{
delay(2000);
if(!quiet)
serial.printf("Download failed (%s).%s",errors.c_str(),EOLNC);
success = false;
}
}
return success;
}
bool ZBrowser::doYPutCommand(String &line, bool showShellOutput)
{
bool success=true;
String p = makePath(cleanOneArg(line));
debugPrintf("yput:%s\r\n",p.c_str());
File rootDir=SD.open(p);
if((!rootDir)||(!rootDir.isDirectory()))
{
if(!quiet)
serial.printf("Path doesn't exist: %s%s",p.c_str(),EOLNC);
if(rootDir)
rootDir.close();
success = false;
}
else
{
String errors="";
if(!quiet)
serial.printf("Go to YModem upload.%s",EOLNC);
serial.flushAlways();
if(yUpload(&SD, commandMode.getFlowControlType(), rootDir, errors))
{
rootDir.close();
delay(2000);
if(!quiet)
serial.printf("Upload completed successfully.%s",EOLNC);
}
else
{
rootDir.close();
delay(2000);
if(!quiet)
serial.printf("Upload failed (%s).%s",errors.c_str(),EOLNC);
success = false;
}
}
return success;
}
bool ZBrowser::doKGetCommand(String &line, bool showShellOutput)
{
bool success=true;
String rawPath = makePath(cleanOneArg(line));
String p=stripDir(rawPath);
String mask=stripFilename(rawPath);
String errors="";
String **fileList=(String**)malloc(sizeof(String *));
int numFiles=0;
makeFileList(&fileList,&numFiles,p,mask,true);
if(!quiet)
serial.printf("Go to Kermit download.%s",EOLNC);
serial.flushAlways();
if(kDownload(commandMode.getFlowControlType(),SD,fileList,numFiles,errors))
{
delay(2000);
if(!quiet)
serial.printf("Download completed successfully.%s",EOLNC);
serial.flushAlways();
}
else
{
delay(2000);
if(!quiet)
serial.printf("Download failed (%s).%s",errors.c_str(),EOLNC);
serial.flushAlways();
success = false;
}
for(int i=0;i<numFiles;i++)
delete(fileList[i]);
delete(fileList);
return success;
}
bool ZBrowser::doKPutCommand(String &line, bool showShellOutput)
{
bool success=true;
String p = makePath(cleanOneArg(line));
debugPrintf("kput:%s\r\n",p.c_str());
String dirNm=p;
File rootDir=SD.open(dirNm);
if((!rootDir)||(!rootDir.isDirectory()))
{
if(!quiet)
serial.printf("Path doesn't exist: %s%s",dirNm.c_str(),EOLNC);
if(rootDir)
rootDir.close();
}
else
{
String rootDirNm = rootDir.name();
rootDir.close();
String errors="";
if(!quiet)
serial.printf("Go to Kermit upload.%s",EOLNC);
serial.flushAlways();
if(kUpload(commandMode.getFlowControlType(),SD,rootDirNm,errors))
{
delay(2000);
if(!quiet)
serial.printf("Upload completed successfully.%s",EOLNC);
serial.flushAlways();
}
else
{
delay(2000);
if(!quiet)
serial.printf("Upload failed (%s).%s",errors.c_str(),EOLNC);
serial.flushAlways();
success = false;
}