direct/python/yaffs_browser.py

   1 #!/usr/bin/python
   2 import Tkinter as tk
   3 from yaffsfs import *
   4 #import examples
   5 import ctypes
   6
   7 yaffs_StartUp()
   8 yaffs_mount("/yaffs2/")
   9 root_window =tk.Tk()
  10 root_window.title("YAFFS Browser")
  11 mount_list_text_variable=tk.StringVar()
  12
  13 mount_list_text_variable.set("/yaffs2/")
  14 current_directory_dict={}
  15 open_windows_list=[]
  16
  17 class editor():
  18     yaffs_handle=0
  19     file_editor_root =0
  20     save_button=[]
  21     file_contents=0
  22     file_path=0
  23     isLink=0
  24     def save_file(self):
  25         if  self.isLink==True:
  26             target_path=self.file_editor_text.get("1.0", tk.END) ##"1.0" is the index of the first line of text
  27             target_path=target_path[0:len(target_path)-1]
  28             new_path=self.file_path
  29             print "creating a symlink \n target:##", target_path, "##"
  30             target_file_exists=yaffs_access(target_path, 0) ##yaffs_access will return 0 on success and -1 on failure.
  31             if target_file_exists>=0:
  32                 ##file exists,create symlink
  33                 print "target file exist, creating symlink"
  34                 yaffs_unlink(new_path)
  35                 output=yaffs_symlink(target_path, new_path)
  36                 print "yaffs symlink output=", output
  37                 self.file_editor_root.destroy()
  38             else :
  39                 ##file does not exist
  40                 print "target file does not exist, cannot create symlink"
  41         else :
  42             #global current_directory_dict
  43             print "saving the file"
  44             print self.file_editor_text.get("1.0", tk.END) ##"1.0" is the index of the first line of text
  45             yaffs_lseek(self.yaffs_handle, 0, 0)
  46             data_to_be_written=self.file_editor_text.get("1.0", tk.END)
  47             print "data to be saved", data_to_be_written
  48             length_of_file=len(data_to_be_written)
  49             print "length of data to be written",length_of_file
  50             output=yaffs_write(self.yaffs_handle,data_to_be_written , length_of_file)
  51             print "output", output
  52             yaffs_ftruncate(self.yaffs_handle, length_of_file)
  53             yaffs_close(self.yaffs_handle)
  54             self.yaffs_handle = yaffs_open(self.file_path,66,0666)
  55         load_dir()
  56
  57     def __init__(self, isLink=0):
  58         global current_directory_dict
  59         x=name_list_box.curselection()
  60         self.id=int(x[0])
  61         self.file_editor_root =tk.Toplevel()
  62         self.save_button=tk.Button(self.file_editor_root, text="save", command=self.save_file)
  63         self.save_button.pack(fill=tk.BOTH)
  64
  65         self.file_path=current_directory_dict[self.id]["path"]
  66         print "file path", self.file_path
  67         self.file_editor_root.title(current_directory_dict[self.id]["path"])
  68         self.file_editor_text=tk.Text(self.file_editor_root)
  69         self.yaffs_handle = yaffs_open(current_directory_dict[self.id]["path"],66,0666)
  70         length_of_file=yaffs_lseek(self.yaffs_handle, 0, 2) ##seeks to the end of the file
  71         yaffs_lseek(self.yaffs_handle, 0, 0)## returns the handle to the front of th file
  72         print "length of file to be opened:", length_of_file
  73         if isLink==True and False ==True : ##this alows the symlink to be edited and is no longer used. to renable it delete "and False ==True"
  74             print "opening symlink"
  75             self.file_contents=ctypes.create_string_buffer(1000)
  76             yaffs_readlink(self.file_path,self.file_contents,1000)
  77             self.isLink=True
  78         else:
  79             print"opening file"
  80             self.file_contents=ctypes.create_string_buffer(length_of_file)
  81             yaffs_read(self.yaffs_handle,self.file_contents,length_of_file)
  82             print "file contents", self.file_contents.raw
  83         self.file_editor_text.insert(tk.END, self.file_contents.raw)
  84         self.file_editor_text.pack(fill=tk.BOTH)
  85         ##self.file_editor_text.bind("<Control-s>", self.save_file)
  86         ##doesn't work because it can't pass "self"
  87
  88 def load_dir():
  89     global current_directory_dict
  90     print "loading a new directory*******************************************************************"
  91     name_list_box.delete(0, tk.END)
  92     current_directory_dict=yaffs_ls(mount_list_text_variable.get())
  93     print "new directory", current_directory_dict
  94     ##copy directory into file box
  95     for x in range(0,len(current_directory_dict)):
  96         name_list_box.insert(x,(current_directory_dict[x]["inodes"]+"  "+ current_directory_dict[x]["type"]+"  "+ current_directory_dict[x]["size"]+"  "+ current_directory_dict[x]["path"]+"  "+current_directory_dict[x]["extra_data"]))
  97     name_list_box.grid(column=0, row=1)
  98     return current_directory_dict
  99
 100 def remount_yaffs():
 101     ##this isn't working. somethihg need to be changed in the config of the simulator to release the handle of the emfile
 102     print "remounting yaffs"
 103     print"unmounting yaffs:", yaffs_unmount("yaffs2/")
 104     print "mounting yaffs", yaffs_mount("/yaffs2/")
 105     load_dir()
 106
 107 def load_file(link=0):
 108     global open_windows_list
 109     open_windows_list.append(editor(link))
 110
 111 def load_command(self=0):
 112     global current_directory_dictls
 113
 114     print "you loaded a file/dir/link"
 115     x=name_list_box.curselection()
 116     x=int(x[0])
 117     print "cursor selection", x
 118     print "dict", current_directory_dict
 119
 120     print "file inode is:", current_directory_dict[x]["inodes"]
 121
 122
 123     print "file path is:", current_directory_dict[x]["path"]
 124     if current_directory_dict[x]["type"]=="dir":
 125         ##open dir
 126         print "open directory"
 127         mount_list_text_variable.set(current_directory_dict[x]["path"])
 128         print mount_list_text_variable.get()
 129         print "old directory dict", current_directory_dict
 130         #current_directory_dict=load_dir()
 131         load_dir()
 132
 133         print "new directory dict passed back"
 134
 135     elif current_directory_dict[x]["type"]=="file" :
 136         ##open file
 137         print "open file"
 138         load_file()
 139     elif current_directory_dict[x]["type"]=="link":
 140         print "loading a symlink"
 141         load_file(1)
 142     ##mount_list_text_variable.set(mount_list_text_variable.get()+str(list[0][0]))
 143
 144 def back_a_directory(self=0):
 145     x=len(mount_list_text_variable.get())
 146     string=mount_list_text_variable.get()
 147     slashes_id=[]
 148     #print "length of path", x
 149     #print "string been sorted:",  string
 150     for i in range(0, x):
 151         if string[i]=='/':
 152             slashes_id.append(i)
 153             #print "slash found at:", i
 154
 155     print slashes_id
 156     ##slashes_id.sort() not needed because the list is already in acending order
 157     ##print "sorted",slashes_id
 158
 159     string=string[0: slashes_id[len(slashes_id)-2]+1]
 160     print string
 161     mount_list_text_variable.set(string)
 162     load_dir()
 163
 164
 165
 166
 167
 168
 169 def yaffs_ls(dname):
 170     ls_dict=[]
 171
 172     if dname[-1] != "/": dname = dname + "/"
 173     dc = yaffs_opendir(dname)
 174     if dc != 0 :
 175         sep = yaffs_readdir(dc)
 176         while bool(sep):
 177
 178             se = sep.contents
 179             fullname = dname + se.d_name
 180             st = yaffs_stat_struct()
 181             result = yaffs_lstat(fullname,byref(st))
 182             perms = st.st_mode & 0777
 183             ftype = st.st_mode & yaffs_S_IFMT
 184             isFile = True if ftype == yaffs_S_IFREG else False
 185             isDir  = True if ftype == yaffs_S_IFDIR else False
 186             isSymlink= True if ftype == yaffs_S_IFLNK else False
 187
 188             if isFile :
 189                 ls_dict.append ({"type" :"file",  "inodes" :  str(se.d_ino),   "permissions" : str(hex(perms)),  "size": str(st.st_size), "path":  fullname,"extra_data":""})
 190                 print "file st.st_mode:", st.st_mode
 191
 192             elif isDir :
 193                 print "dir st.st_mode:", st.st_mode
 194
 195                 ls_dict.append({"type":"dir", "inodes" :str(se.d_ino), "permissions":str( hex(perms)),"size":"0",   "path": fullname+"/", "extra_data":""})
 196             elif isSymlink:
 197                 print "symlink st.st_mode:", st.st_mode
 198                 file_contents=ctypes.create_string_buffer(30)
 199                 yaffs_readlink(fullname,file_contents,30)
 200                 string=repr(file_contents.value)
 201                 print "len of str", len(string)
 202 #                string.lstrip()
 203
 204                 print "string", string, "###"
 205
 206                 ls_dict.append ({"type" :"link",  "inodes" :  str(se.d_ino),   "permissions" : str(hex(perms)),  "size": str(st.st_size), "path":  fullname, "extra_data":"> "+string})
 207
 208             else :
 209                 print "unknown st.st_mode:", st.st_mode
 210                 ls_dict.append({ "type":"Other", "inodes":str(se.d_ino),  "permissions":str( hex(perms)), "size":"0",   "path": fullname,"extra_data":""})
 211             sep = yaffs_readdir(dc)
 212         yaffs_closedir(dc)
 213         return ls_dict
 214     else:
 215         print "Could not open directory"
 216         return -1
 217
 218
 219 ##toolbar
 220 toolbar_frame=tk.Frame(root_window)
 221 button_open=tk.Button(toolbar_frame, command=load_command, text="load")
 222 button_open.grid(column=0, row=0)
 223 button_back=tk.Button(toolbar_frame, command=back_a_directory, text="back")
 224 button_back.grid(column=1, row=0)
 225 toolbar_frame.grid(row=0, column=0,  columnspan=3)
 226
 227 def delete_selected(selected_dir=0):
 228     if selected_dir==0:
 229         print"using current_directory_dict"
 230         global current_directory_dict
 231         x=name_list_box.curselection()
 232         x=int(x[0])
 233         print current_directory_dict[x]["type"]
 234         if current_directory_dict[x]["type"]=="file":
 235             path=current_directory_dict[x]["path"]
 236             path =path
 237             output=yaffs_unlink(path)
 238             print "unlinking output:", output
 239         elif current_directory_dict[x]["type"]=="dir":
 240             path=current_directory_dict[x]["path"]
 241             inside_dir=yaffs_ls(path)
 242             print "files and folder inside dir", inside_dir
 243             print "len of dir", len(inside_dir)
 244             if inside_dir!=[]: ##if the dir is not empty
 245                 ## remove stuff in dir
 246                 for i in range(0,len(inside_dir)):
 247                     print "calling self*****"
 248                     delete_selected(inside_dir[i])
 249
 250             path =path[0:len(path)-1] ##this is to remove the "/" off the end of the of the file
 251             print "removing:", path
 252             output=yaffs_rmdir(path)
 253             print "rmdir output:", output
 254     else :
 255         print "using passed dir"
 256         print "dir passed", selected_dir
 257         current_directory_dict =selected_dir
 258
 259         print "after copying", current_directory_dict
 260         print current_directory_dict["type"]
 261         if current_directory_dict["type"]=="file":
 262             path=current_directory_dict["path"]
 263             path =path
 264             output=yaffs_unlink(path)
 265             print "unlinking output:", output
 266         elif current_directory_dict["type"]=="dir":
 267             path=current_directory_dict["path"]
 268             inside_dir=yaffs_ls(path)
 269             print "files and folder inside dir", inside_dir
 270             print "len of dir", len(inside_dir)
 271             if inside_dir!=[]: ##if the dir is not empty
 272                 ## remove stuff in dir
 273                 for i in range(0,len(inside_dir)):
 274                     print "calling self*****"
 275                     delete_selected(inside_dir[i])
 276
 277             path =path[0:len(path)-1] ##this is to remove the "/" off the end of the of the file
 278             print "removing:", path
 279             output=yaffs_rmdir(path)
 280             print "rmdir output:", output
 281
 282     load_dir()
 283
 284
 285
 286 class new_file():
 287     path_entry_box=0
 288     new_file_window=0
 289     def open_the_file(self):
 290         global mount_list_text_variable
 291         print "trying to create", mount_list_text_variable.get()+self.path_entry_box.get()
 292         yaffs_handle=yaffs_open(self.path_entry_box.get(),66,0666)
 293         yaffs_close(yaffs_handle)
 294         self.new_file_window.destroy()
 295         load_dir()
 296
 297     def cancel(self):
 298         ##del self
 299         self.new_file_window.destroy()
 300     def __init__(self):
 301         global mount_list_text_variable
 302         self.new_file_window =tk.Toplevel(takefocus=True)
 303         path_frame=tk.Frame(self.new_file_window)
 304         path_label=tk.Label(path_frame, text="file path")
 305         path_label.pack(side=tk.LEFT)
 306         text=tk.StringVar()
 307         text.set(mount_list_text_variable.get())
 308         print "############################",mount_list_text_variable.get()
 309         self.path_entry_box= tk.Entry(path_frame, textvariable=text)
 310         self.path_entry_box.pack(side=tk.RIGHT)
 311         path_frame.pack()
 312         button_frame=tk.Frame(self.new_file_window)
 313         create_button=tk.Button(button_frame, text="Create", command=self.open_the_file)
 314         create_button.pack(side=tk.LEFT)
 315         cancel_button=tk.Button(button_frame, text="Cancel", command=self.cancel)
 316         cancel_button.pack(side=tk.RIGHT)
 317         button_frame.pack()
 318
 319 class new_folder():
 320     path_entry_box=0
 321     new_folder_window=0
 322     def create_the_folder(self):
 323         global mount_list_text_variable
 324         print "trying to create", mount_list_text_variable.get()+self.path_entry_box.get()
 325         yaffs_mkdir(self.path_entry_box.get(),0666)
 326         self.new_folder_window.destroy()
 327
 328         load_dir()
 329
 330     def cancel(self):
 331         ##del self
 332         self.new_folder_window.destroy()
 333     def __init__(self):
 334         global mount_list_text_variable
 335         self.new_folder_window =tk.Toplevel(takefocus=True)
 336         path_frame=tk.Frame(self.new_folder_window)
 337         path_label=tk.Label(path_frame, text="directory path")
 338         path_label.pack(side=tk.LEFT)
 339         text=tk.StringVar()
 340         text.set(mount_list_text_variable.get())
 341         print "############################",mount_list_text_variable.get()
 342         self.path_entry_box= tk.Entry(path_frame, textvariable=text)
 343         self.path_entry_box.pack(side=tk.RIGHT)
 344         path_frame.pack()
 345         button_frame=tk.Frame(self.new_folder_window)
 346         create_button=tk.Button(button_frame, text="Create", command=self.create_the_folder)
 347         create_button.pack(side=tk.LEFT)
 348         cancel_button=tk.Button(button_frame, text="Cancel", command=self.cancel)
 349         cancel_button.pack(side=tk.RIGHT)
 350         button_frame.pack()
 351
 352
 353 class new_symlink():
 354     path_entry_box=0
 355     target_text=0
 356     new_text=0
 357     new_file_window=0
 358     def create_the_symlink(self):
 359         global mount_list_text_variable
 360         ##check the symlink's target is a file.
 361         target_path=self.target_text.get()
 362         new_path=self.new_text.get()
 363         print "creating a symlink \n target:", target_path
 364         target_file_exists=yaffs_access(target_path, 0) ##yaffs_access will return 0 on success and -1 on failure.
 365         if target_file_exists>=0:
 366             ##file exists,create symlink
 367             print "target file exist, creating symlink"
 368             yaffs_symlink(target_path, new_path)
 369             self.new_file_window.destroy()
 370         else :
 371             ##file does not exist
 372             print "target file does not exist, cannot create symlink"
 373         load_dir()
 374
 375     def cancel(self):
 376         ##del self
 377         self.new_file_window.destroy()
 378     def __init__(self):
 379         global mount_list_text_variable
 380         self.new_file_window =tk.Toplevel(takefocus=True)
 381         target_frame=tk.Frame(self.new_file_window)
 382         target_label=tk.Label(target_frame, text="target")
 383         target_label.pack(side=tk.LEFT)
 384         self.target_text=tk.StringVar()
 385         self.target_text.set(mount_list_text_variable.get())
 386         #print "############################",mount_list_text_variable.get()
 387         self.target_entry_box= tk.Entry(target_frame, textvariable=self.target_text)
 388         self.target_entry_box.pack(side=tk.RIGHT)
 389         target_frame.pack()
 390
 391         new_frame=tk.Frame(self.new_file_window)
 392         new_label=tk.Label(new_frame, text="file path")
 393         new_label.pack(side=tk.LEFT)
 394         self.new_text=tk.StringVar()
 395         self.new_text.set(mount_list_text_variable.get())
 396         #print "############################",mount_list_text_variable.get()
 397         self.new_entry_box= tk.Entry(new_frame, textvariable=self.new_text)
 398         self.new_entry_box.pack(side=tk.RIGHT)
 399         new_frame.pack()
 400
 401         button_frame=tk.Frame(self.new_file_window)
 402         create_button=tk.Button(button_frame, text="Create", command=self.create_the_symlink)
 403         create_button.pack(side=tk.LEFT)
 404         cancel_button=tk.Button(button_frame, text="Cancel", command=self.cancel)
 405         cancel_button.pack(side=tk.RIGHT)
 406         button_frame.pack()
 407
 408
 409
 410 class new_hardlink():
 411     path_entry_box=0
 412     target_text=0
 413     new_text=0
 414     new_file_window=0
 415     def create_the_hardlink(self):
 416         global mount_list_text_variable
 417         ##check the symlink's target is a file.
 418         target_path=self.target_text.get()
 419         new_path=self.new_text.get()
 420         print "creating a hardlink \n target:", target_path
 421         target_file_exists=yaffs_access(target_path, 0) ##yaffs_access will return 0 on success and -1 on failure.
 422         if target_file_exists>=0:
 423             ##file exists,create symlink
 424             print "target file exist, creating hardlink"
 425             yaffs_link(target_path, new_path)
 426             self.new_file_window.destroy()
 427         else :
 428             ##file does not exist
 429             print "target file does not exist, cannot create hardlink"
 430         load_dir()
 431
 432     def cancel(self):
 433         ##del self
 434         self.new_file_window.destroy()
 435     def __init__(self):
 436         global mount_list_text_variable
 437         self.new_file_window =tk.Toplevel(takefocus=True)
 438         target_frame=tk.Frame(self.new_file_window)
 439         target_label=tk.Label(target_frame, text="target")
 440         target_label.pack(side=tk.LEFT)
 441         self.target_text=tk.StringVar()
 442         self.target_text.set(mount_list_text_variable.get())
 443         #print "############################",mount_list_text_variable.get()
 444         self.target_entry_box= tk.Entry(target_frame, textvariable=self.target_text)
 445         self.target_entry_box.pack(side=tk.RIGHT)
 446         target_frame.pack()
 447
 448         new_frame=tk.Frame(self.new_file_window)
 449         new_label=tk.Label(new_frame, text="file path")
 450         new_label.pack(side=tk.LEFT)
 451         self.new_text=tk.StringVar()
 452         self.new_text.set(mount_list_text_variable.get())
 453         #print "############################",mount_list_text_variable.get()
 454         self.new_entry_box= tk.Entry(new_frame, textvariable=self.new_text)
 455         self.new_entry_box.pack(side=tk.RIGHT)
 456         new_frame.pack()
 457
 458         button_frame=tk.Frame(self.new_file_window)
 459         create_button=tk.Button(button_frame, text="Create", command=self.create_the_hardlink)
 460         create_button.pack(side=tk.LEFT)
 461         cancel_button=tk.Button(button_frame, text="Cancel", command=self.cancel)
 462         cancel_button.pack(side=tk.RIGHT)
 463         button_frame.pack()
 464
 465
 466 ##mount list entry box init
 467 mount_list_frame=tk.Frame(root_window)
 468 mount_list_label=tk.Label(mount_list_frame, text="mount list")
 469 mount_list_label.pack(side=tk.RIGHT)
 470
 471 mount_list_entry_box= tk.Entry(mount_list_frame,textvariable=mount_list_text_variable)
 472 mount_list_entry_box.pack(side=tk.RIGHT)
 473 mount_list_frame.grid(row=1, column=0, columnspan=2)
 474
 475
 476 list_frame=tk.Frame(root_window)
 477 name_list_box=tk.Listbox(list_frame,exportselection=0, height=30, width=80)
 478 load_dir()
 479 list_frame.grid(sticky=tk.W+tk.E+tk.N+tk.S)
 480
 481 name_list_box.bind("<Double-Button-1>", load_command)
 482
 483 browser_menu_bar=tk.Menu(root_window)
 484 browser_file_menu=tk.Menu(browser_menu_bar)
 485
 486 browser_file_menu.add_command(label="Reload", command=load_dir)
 487 browser_file_menu.add_command(label="Remount yaffs", command=remount_yaffs)
 488
 489 #browser_file_menu.add_command(label="Open")
 490 #browser_file_menu.add_command(label="Save")
 491 browser_menu_bar.add_cascade(label="File", menu=browser_file_menu)
 492 root_window.config(menu=browser_menu_bar)
 493
 494
 495 browser_edit_menu=tk.Menu(browser_menu_bar)
 496
 497 browser_edit_menu.add_command(label="New File", command=new_file)
 498 browser_edit_menu.add_command(label="New Folder", command=new_folder)
 499 browser_edit_menu.add_command(label="New Symlink", command=new_symlink)
 500 browser_edit_menu.add_command(label="New Hardlink", command=new_hardlink)
 501
 502
 503 browser_edit_menu.add_command(label="delete selected", command=delete_selected)
 504 browser_menu_bar.add_cascade(label="Edit", menu=browser_edit_menu)
 505
 506
 507
 508
 509
 510
 511 root_window.mainloop()
 512
 513 print"unmounting yaffs:", yaffs_unmount("yaffs2/")
 514
 515