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 load_file(link=0):
 101     global open_windows_list
 102     open_windows_list.append(editor(link))
 103
 104 def load_command(self=0):
 105     global current_directory_dict
 106     print "you loaded a file/dir/link"
 107     x=name_list_box.curselection()
 108     x=int(x[0])
 109     print "cursor selection", x
 110     print "dict", current_directory_dict
 111
 112     print "file inode is:", current_directory_dict[x]["inodes"]
 113
 114
 115     print "file path is:", current_directory_dict[x]["path"]
 116     if current_directory_dict[x]["type"]=="dir":
 117         ##open dir
 118         print "open directory"
 119         mount_list_text_variable.set(current_directory_dict[x]["path"])
 120         print mount_list_text_variable.get()
 121         print "old directory dict", current_directory_dict
 122         #current_directory_dict=load_dir()
 123         load_dir()
 124
 125         print "new directory dict passed back"
 126
 127     elif current_directory_dict[x]["type"]=="file" :
 128         ##open file
 129         print "open file"
 130         load_file()
 131     elif current_directory_dict[x]["type"]=="link":
 132         print "loading a symlink"
 133         load_file(1)
 134     ##mount_list_text_variable.set(mount_list_text_variable.get()+str(list[0][0]))
 135
 136 def back_a_directory(self=0):
 137     x=len(mount_list_text_variable.get())
 138     string=mount_list_text_variable.get()
 139     slashes_id=[]
 140     #print "length of path", x
 141     #print "string been sorted:",  string
 142     for i in range(0, x):
 143         if string[i]=='/':
 144             slashes_id.append(i)
 145             #print "slash found at:", i
 146
 147     print slashes_id
 148     ##slashes_id.sort() not needed because the list is already in acending order
 149     ##print "sorted",slashes_id
 150
 151     string=string[0: slashes_id[len(slashes_id)-2]+1]
 152     print string
 153     mount_list_text_variable.set(string)
 154     load_dir()
 155
 156
 157
 158
 159
 160
 161 def yaffs_ls(dname):
 162     ls_dict=[]
 163
 164     if dname[-1] != "/": dname = dname + "/"
 165     dc = yaffs_opendir(dname)
 166     if dc != 0 :
 167         sep = yaffs_readdir(dc)
 168         while bool(sep):
 169
 170             se = sep.contents
 171             fullname = dname + se.d_name
 172             st = yaffs_stat_struct()
 173             result = yaffs_lstat(fullname,byref(st))
 174             perms = st.st_mode & 0777
 175             ftype = st.st_mode & yaffs_S_IFMT
 176             isFile = True if ftype == yaffs_S_IFREG else False
 177             isDir  = True if ftype == yaffs_S_IFDIR else False
 178             isSymlink= True if ftype == yaffs_S_IFLNK else False
 179
 180             if isFile :
 181                 ls_dict.append ({"type" :"file",  "inodes" :  str(se.d_ino),   "permissions" : str(hex(perms)),  "size": str(st.st_size), "path":  fullname,"extra_data":""})
 182                 print "file st.st_mode:", st.st_mode
 183
 184             elif isDir :
 185                 print "dir st.st_mode:", st.st_mode
 186
 187                 ls_dict.append({"type":"dir", "inodes" :str(se.d_ino), "permissions":str( hex(perms)),"size":"0",   "path": fullname+"/", "extra_data":""})
 188             elif isSymlink:
 189                 print "symlink st.st_mode:", st.st_mode
 190                 file_contents=ctypes.create_string_buffer(30)
 191                 yaffs_readlink(fullname,file_contents,30)
 192                 string=repr(file_contents.value)
 193                 print "len of str", len(string)
 194 #                string.lstrip()
 195
 196                 print "string", string, "###"
 197
 198                 ls_dict.append ({"type" :"link",  "inodes" :  str(se.d_ino),   "permissions" : str(hex(perms)),  "size": str(st.st_size), "path":  fullname, "extra_data":"> "+string})
 199
 200             else :
 201                 print "unknown st.st_mode:", st.st_mode
 202                 ls_dict.append({ "type":"Other", "inodes":str(se.d_ino),  "permissions":str( hex(perms)), "size":"0",   "path": fullname,"extra_data":""})
 203             sep = yaffs_readdir(dc)
 204         yaffs_closedir(dc)
 205         return ls_dict
 206     else:
 207         print "Could not open directory"
 208         return -1
 209
 210
 211 ##toolbar
 212 toolbar_frame=tk.Frame(root_window)
 213 button_open=tk.Button(toolbar_frame, command=load_command, text="load")
 214 button_open.grid(column=0, row=0)
 215 button_back=tk.Button(toolbar_frame, command=back_a_directory, text="back")
 216 button_back.grid(column=1, row=0)
 217 toolbar_frame.grid(row=0, column=0,  columnspan=3)
 218
 219 def delete_selected(selected_dir=0):
 220     if selected_dir==0:
 221         print"using current_directory_dict"
 222         global current_directory_dict
 223         x=name_list_box.curselection()
 224         x=int(x[0])
 225         print current_directory_dict[x]["type"]
 226         if current_directory_dict[x]["type"]=="file":
 227             path=current_directory_dict[x]["path"]
 228             path =path
 229             output=yaffs_unlink(path)
 230             print "unlinking output:", output
 231         elif current_directory_dict[x]["type"]=="dir":
 232             path=current_directory_dict[x]["path"]
 233             inside_dir=yaffs_ls(path)
 234             print "files and folder inside dir", inside_dir
 235             print "len of dir", len(inside_dir)
 236             if inside_dir!=[]: ##if the dir is not empty
 237                 ## remove stuff in dir
 238                 for i in range(0,len(inside_dir)):
 239                     print "calling self*****"
 240                     delete_selected(inside_dir[i])
 241
 242             path =path[0:len(path)-1] ##this is to remove the "/" off the end of the of the file
 243             print "removing:", path
 244             output=yaffs_rmdir(path)
 245             print "rmdir output:", output
 246     else :
 247         print "using passed dir"
 248         print "dir passed", selected_dir
 249         current_directory_dict =selected_dir
 250
 251         print "after copying", current_directory_dict
 252         print current_directory_dict["type"]
 253         if current_directory_dict["type"]=="file":
 254             path=current_directory_dict["path"]
 255             path =path
 256             output=yaffs_unlink(path)
 257             print "unlinking output:", output
 258         elif current_directory_dict["type"]=="dir":
 259             path=current_directory_dict["path"]
 260             inside_dir=yaffs_ls(path)
 261             print "files and folder inside dir", inside_dir
 262             print "len of dir", len(inside_dir)
 263             if inside_dir!=[]: ##if the dir is not empty
 264                 ## remove stuff in dir
 265                 for i in range(0,len(inside_dir)):
 266                     print "calling self*****"
 267                     delete_selected(inside_dir[i])
 268
 269             path =path[0:len(path)-1] ##this is to remove the "/" off the end of the of the file
 270             print "removing:", path
 271             output=yaffs_rmdir(path)
 272             print "rmdir output:", output
 273
 274
 275
 276     load_dir()
 277
 278
 279
 280 class new_file():
 281     path_entry_box=0
 282     new_file_window=0
 283     def open_the_file(self):
 284         global mount_list_text_variable
 285         print "trying to create", mount_list_text_variable.get()+self.path_entry_box.get()
 286         yaffs_handle=yaffs_open(self.path_entry_box.get(),66,0666)
 287         yaffs_close(yaffs_handle)
 288         self.new_file_window.destroy()
 289         load_dir()
 290
 291     def cancel(self):
 292         ##del self
 293         self.new_file_window.destroy()
 294     def __init__(self):
 295         global mount_list_text_variable
 296         self.new_file_window =tk.Toplevel(takefocus=True)
 297         path_frame=tk.Frame(self.new_file_window)
 298         path_label=tk.Label(path_frame, text="file path")
 299         path_label.pack(side=tk.LEFT)
 300         text=tk.StringVar()
 301         text.set(mount_list_text_variable.get())
 302         print "############################",mount_list_text_variable.get()
 303         self.path_entry_box= tk.Entry(path_frame, textvariable=text)
 304         self.path_entry_box.pack(side=tk.RIGHT)
 305         path_frame.pack()
 306         button_frame=tk.Frame(self.new_file_window)
 307         create_button=tk.Button(button_frame, text="Create", command=self.open_the_file)
 308         create_button.pack(side=tk.LEFT)
 309         cancel_button=tk.Button(button_frame, text="Cancel", command=self.cancel)
 310         cancel_button.pack(side=tk.RIGHT)
 311         button_frame.pack()
 312
 313 class new_folder():
 314     path_entry_box=0
 315     new_folder_window=0
 316     def create_the_folder(self):
 317         global mount_list_text_variable
 318         print "trying to create", mount_list_text_variable.get()+self.path_entry_box.get()
 319         yaffs_mkdir(self.path_entry_box.get(),0666)
 320         self.new_folder_window.destroy()
 321
 322         load_dir()
 323
 324     def cancel(self):
 325         ##del self
 326         self.new_folder_window.destroy()
 327     def __init__(self):
 328         global mount_list_text_variable
 329         self.new_folder_window =tk.Toplevel(takefocus=True)
 330         path_frame=tk.Frame(self.new_folder_window)
 331         path_label=tk.Label(path_frame, text="directory path")
 332         path_label.pack(side=tk.LEFT)
 333         text=tk.StringVar()
 334         text.set(mount_list_text_variable.get())
 335         print "############################",mount_list_text_variable.get()
 336         self.path_entry_box= tk.Entry(path_frame, textvariable=text)
 337         self.path_entry_box.pack(side=tk.RIGHT)
 338         path_frame.pack()
 339         button_frame=tk.Frame(self.new_folder_window)
 340         create_button=tk.Button(button_frame, text="Create", command=self.create_the_folder)
 341         create_button.pack(side=tk.LEFT)
 342         cancel_button=tk.Button(button_frame, text="Cancel", command=self.cancel)
 343         cancel_button.pack(side=tk.RIGHT)
 344         button_frame.pack()
 345
 346
 347 class new_symlink():
 348     path_entry_box=0
 349     target_text=0
 350     new_text=0
 351     new_file_window=0
 352     def create_the_symlink(self):
 353         global mount_list_text_variable
 354         ##check the symlink's target is a file.
 355         target_path=self.target_text.get()
 356         new_path=self.new_text.get()
 357         print "creating a symlink \n target:", target_path
 358         target_file_exists=yaffs_access(target_path, 0) ##yaffs_access will return 0 on success and -1 on failure.
 359         if target_file_exists>=0:
 360             ##file exists,create symlink
 361             print "target file exist, creating symlink"
 362             yaffs_symlink(target_path, new_path)
 363             self.new_file_window.destroy()
 364         else :
 365             ##file does not exist
 366             print "target file does not exist, cannot create symlink"
 367         load_dir()
 368
 369     def cancel(self):
 370         ##del self
 371         self.new_file_window.destroy()
 372     def __init__(self):
 373         global mount_list_text_variable
 374         self.new_file_window =tk.Toplevel(takefocus=True)
 375         target_frame=tk.Frame(self.new_file_window)
 376         target_label=tk.Label(target_frame, text="target")
 377         target_label.pack(side=tk.LEFT)
 378         self.target_text=tk.StringVar()
 379         self.target_text.set(mount_list_text_variable.get())
 380         #print "############################",mount_list_text_variable.get()
 381         self.target_entry_box= tk.Entry(target_frame, textvariable=self.target_text)
 382         self.target_entry_box.pack(side=tk.RIGHT)
 383         target_frame.pack()
 384
 385         new_frame=tk.Frame(self.new_file_window)
 386         new_label=tk.Label(new_frame, text="file path")
 387         new_label.pack(side=tk.LEFT)
 388         self.new_text=tk.StringVar()
 389         self.new_text.set(mount_list_text_variable.get())
 390         #print "############################",mount_list_text_variable.get()
 391         self.new_entry_box= tk.Entry(new_frame, textvariable=self.new_text)
 392         self.new_entry_box.pack(side=tk.RIGHT)
 393         new_frame.pack()
 394
 395         button_frame=tk.Frame(self.new_file_window)
 396         create_button=tk.Button(button_frame, text="Create", command=self.create_the_symlink)
 397         create_button.pack(side=tk.LEFT)
 398         cancel_button=tk.Button(button_frame, text="Cancel", command=self.cancel)
 399         cancel_button.pack(side=tk.RIGHT)
 400         button_frame.pack()
 401
 402
 403
 404 class new_hardlink():
 405     path_entry_box=0
 406     target_text=0
 407     new_text=0
 408     new_file_window=0
 409     def create_the_hardlink(self):
 410         global mount_list_text_variable
 411         ##check the symlink's target is a file.
 412         target_path=self.target_text.get()
 413         new_path=self.new_text.get()
 414         print "creating a hardlink \n target:", target_path
 415         target_file_exists=yaffs_access(target_path, 0) ##yaffs_access will return 0 on success and -1 on failure.
 416         if target_file_exists>=0:
 417             ##file exists,create symlink
 418             print "target file exist, creating hardlink"
 419             yaffs_link(target_path, new_path)
 420             self.new_file_window.destroy()
 421         else :
 422             ##file does not exist
 423             print "target file does not exist, cannot create hardlink"
 424         load_dir()
 425
 426     def cancel(self):
 427         ##del self
 428         self.new_file_window.destroy()
 429     def __init__(self):
 430         global mount_list_text_variable
 431         self.new_file_window =tk.Toplevel(takefocus=True)
 432         target_frame=tk.Frame(self.new_file_window)
 433         target_label=tk.Label(target_frame, text="target")
 434         target_label.pack(side=tk.LEFT)
 435         self.target_text=tk.StringVar()
 436         self.target_text.set(mount_list_text_variable.get())
 437         #print "############################",mount_list_text_variable.get()
 438         self.target_entry_box= tk.Entry(target_frame, textvariable=self.target_text)
 439         self.target_entry_box.pack(side=tk.RIGHT)
 440         target_frame.pack()
 441
 442         new_frame=tk.Frame(self.new_file_window)
 443         new_label=tk.Label(new_frame, text="file path")
 444         new_label.pack(side=tk.LEFT)
 445         self.new_text=tk.StringVar()
 446         self.new_text.set(mount_list_text_variable.get())
 447         #print "############################",mount_list_text_variable.get()
 448         self.new_entry_box= tk.Entry(new_frame, textvariable=self.new_text)
 449         self.new_entry_box.pack(side=tk.RIGHT)
 450         new_frame.pack()
 451
 452         button_frame=tk.Frame(self.new_file_window)
 453         create_button=tk.Button(button_frame, text="Create", command=self.create_the_hardlink)
 454         create_button.pack(side=tk.LEFT)
 455         cancel_button=tk.Button(button_frame, text="Cancel", command=self.cancel)
 456         cancel_button.pack(side=tk.RIGHT)
 457         button_frame.pack()
 458
 459
 460 ##mount list entry box init
 461 mount_list_frame=tk.Frame(root_window)
 462 mount_list_label=tk.Label(mount_list_frame, text="mount list")
 463 mount_list_label.pack(side=tk.RIGHT)
 464
 465 mount_list_entry_box= tk.Entry(mount_list_frame,textvariable=mount_list_text_variable)
 466 mount_list_entry_box.pack(side=tk.RIGHT)
 467 mount_list_frame.grid(row=1, column=0, columnspan=2)
 468
 469
 470 list_frame=tk.Frame(root_window)
 471 name_list_box=tk.Listbox(list_frame,exportselection=0, height=30, width=80)
 472 load_dir()
 473 list_frame.grid(sticky=tk.W+tk.E+tk.N+tk.S)
 474
 475 name_list_box.bind("<Double-Button-1>", load_command)
 476
 477 browser_menu_bar=tk.Menu(root_window)
 478 browser_file_menu=tk.Menu(browser_menu_bar)
 479
 480 browser_file_menu.add_command(label="Reload", command=load_dir)
 481 #browser_file_menu.add_command(label="Open")
 482 #browser_file_menu.add_command(label="Save")
 483 browser_menu_bar.add_cascade(label="File", menu=browser_file_menu)
 484 root_window.config(menu=browser_menu_bar)
 485
 486
 487 browser_edit_menu=tk.Menu(browser_menu_bar)
 488
 489 browser_edit_menu.add_command(label="New File", command=new_file)
 490 browser_edit_menu.add_command(label="New Folder", command=new_folder)
 491 browser_edit_menu.add_command(label="New Symlink", command=new_symlink)
 492 browser_edit_menu.add_command(label="New Hardlink", command=new_hardlink)
 493
 494
 495 browser_edit_menu.add_command(label="delete selected", command=delete_selected)
 496 browser_menu_bar.add_cascade(label="Edit", menu=browser_edit_menu)
 497
 498
 499
 500
 501
 502
 503 root_window.mainloop()
 504
 505 print"unmounting yaffs:", yaffs_unmount("yaffs2/")
 506
 507