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path: root/libmproxy/console/flowlist.py
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# Copyright (C) 2012  Aldo Cortesi
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

import urwid
import common

def _mkhelp():
    text = []
    keys = [
        ("A", "accept all intercepted flows"),
        ("a", "accept this intercepted flows"),
        ("C", "clear flow list or eventlog"),
        ("d", "delete flow"),
        ("D", "duplicate flow"),
        ("e", "toggle eventlog"),
        ("l", "set limit filter pattern"),
        ("L", "load saved flows"),
        ("r", "replay request"),
        ("V", "revert changes to request"),
        ("w", "save all flows matching current limit"),
        ("W", "save this flow"),
        ("X", "kill and delete flow, even if it's mid-intercept"),
        ("tab", "tab between eventlog and flow list"),
        ("enter", "view flow"),
        ("|", "run script on this flow"),
    ]
    text.extend(common.format_keyvals(keys, key="key", val="text", indent=4))
    return text
help_context = _mkhelp()

footer = [
    ('heading_key', "?"), ":help ",
]

class EventListBox(urwid.ListBox):
    def __init__(self, master):
        self.master = master
        urwid.ListBox.__init__(self, master.eventlist)

    def keypress(self, size, key):
        key = common.shortcuts(key)
        if key == "C":
            self.master.clear_events()
            key = None
        return urwid.ListBox.keypress(self, size, key)


class BodyPile(urwid.Pile):
    def __init__(self, master):
        h = urwid.Text("Event log")
        h = urwid.Padding(h, align="left", width=("relative", 100))

        self.inactive_header = urwid.AttrWrap(h, "heading_inactive")
        self.active_header = urwid.AttrWrap(h, "heading")

        urwid.Pile.__init__(
            self,
            [
                ConnectionListBox(master),
                urwid.Frame(EventListBox(master), header = self.inactive_header)
            ]
        )
        self.master = master
        self.focus = 0

    def keypress(self, size, key):
        if key == "tab":
            self.focus = (self.focus + 1)%len(self.widget_list)
            self.set_focus(self.focus)
            if self.focus == 1:
                self.widget_list[1].header = self.active_header
            else:
                self.widget_list[1].header = self.inactive_header
            key = None
        elif key == "v":
            self.master.toggle_eventlog()
            key = None

        # This is essentially a copypasta from urwid.Pile's keypress handler.
        # So much for "closed for modification, but open for extension".
        item_rows = None
        if len(size)==2:
            item_rows = self.get_item_rows( size, focus=True )
        i = self.widget_list.index(self.focus_item)
        tsize = self.get_item_size(size,i,True,item_rows)
        return self.focus_item.keypress( tsize, key )


class ConnectionItem(common.WWrap):
    def __init__(self, master, state, flow, focus):
        self.master, self.state, self.flow = master, state, flow
        self.focus = focus
        w = self.get_text()
        common.WWrap.__init__(self, w)

    def get_text(self):
        return common.format_flow(self.flow, self.focus)

    def selectable(self):
        return True

    def keypress(self, (maxcol,), key):
        key = common.shortcuts(key)
        if key == "a":
            self.flow.accept_intercept()
            self.master.sync_list_view()
        elif key == "d":
            self.flow.kill(self.master)
            self.state.delete_flow(self.flow)
            self.master.sync_list_view()
        elif key == "D":
            f = self.master.duplicate_flow(self.flow)
            self.master.currentflow = f
            self.master.focus_current()
        elif key == "r":
            self.flow.backup()
            r = self.master.replay_request(self.flow)
            if r:
                self.master.statusbar.message(r)
            self.master.sync_list_view()
        elif key == "V":
            if not self.flow.modified():
                self.master.statusbar.message("Flow not modified.")
                return
            self.state.revert(self.flow)
            self.master.sync_list_view()
            self.master.statusbar.message("Reverted.")
        elif key == "w":
            self.master.path_prompt(
                "Save flows: ",
                self.state.last_saveload,
                self.master.save_flows
            )
        elif key == "W":
            self.master.path_prompt(
                "Save this flow: ",
                self.state.last_saveload,
                self.master.save_one_flow,
                self.flow
            )
        elif key == "X":
            self.flow.kill(self.master)
        elif key == "enter":
            if self.flow.request:
                self.master.view_flow(self.flow)
        elif key == "|":
            self.master.path_prompt(
                "Send flow to script: ",
                self.state.last_script,
                self.master.run_script_once,
                self.flow
            )
        else:
            return key


class ConnectionListView(urwid.ListWalker):
    def __init__(self, master, state):
        self.master, self.state = master, state
        if self.state.flow_count():
            self.set_focus(0)

    def get_focus(self):
        f, i = self.state.get_focus()
        f = ConnectionItem(self.master, self.state, f, True) if f else None
        return f, i

    def set_focus(self, focus):
        ret = self.state.set_focus(focus)
        return ret

    def get_next(self, pos):
        f, i = self.state.get_next(pos)
        f = ConnectionItem(self.master, self.state, f, False) if f else None
        return f, i

    def get_prev(self, pos):
        f, i = self.state.get_prev(pos)
        f = ConnectionItem(self.master, self.state, f, False) if f else None
        return f, i


class ConnectionListBox(urwid.ListBox):
    def __init__(self, master):
        self.master = master
        urwid.ListBox.__init__(self, master.flow_list_view)

    def keypress(self, size, key):
        key = common.shortcuts(key)
        if key == "A":
            self.master.accept_all()
            self.master.sync_list_view()
        elif key == "C":
            self.master.clear_flows()
        elif key == "e":
            self.master.toggle_eventlog()
        elif key == "l":
            self.master.prompt("Limit: ", self.master.state.limit_txt, self.master.set_limit)
            self.master.sync_list_view()
        elif key == "L":
            self.master.path_prompt(
                "Load flows: ",
                self.master.state.last_saveload,
                self.master.load_flows_callback
            )
        else:
            return urwid.ListBox.keypress(self, size, key)
>__blh; unsigned long esp0; unsigned short ss0,__ss0h; unsigned long esp1; unsigned short ss1,__ss1h; unsigned long esp2; unsigned short ss2,__ss2h; unsigned long __cr3; unsigned long eip; unsigned long eflags; unsigned long eax,ecx,edx,ebx; unsigned long esp; unsigned long ebp; unsigned long esi; unsigned long edi; unsigned short es, __esh; unsigned short cs, __csh; unsigned short ss, __ssh; unsigned short ds, __dsh; unsigned short fs, __fsh; unsigned short gs, __gsh; unsigned short ldt, __ldth; unsigned short trace, bitmap; unsigned long io_bitmap[IO_BITMAP_SIZE+1]; /* * pads the TSS to be cacheline-aligned (size is 0x100) */ unsigned long __cacheline_filler[5]; }; struct thread_struct { unsigned long esp0; unsigned long eip; unsigned long esp; unsigned long fs; unsigned long gs; unsigned int io_pl; /* Hardware debugging registers */ unsigned long debugreg[8]; /* %%db0-7 debug registers */ /* fault info */ unsigned long cr2, trap_no, error_code; /* floating point info */ union i387_union i387; /* virtual 86 mode info */ struct vm86_struct * vm86_info; unsigned long screen_bitmap; unsigned long v86flags, v86mask, saved_esp0; }; #define INIT_THREAD { sizeof(init_stack) + (long) &init_stack, \ 0, 0, 0, 0, 0, 0, {0}, 0, 0, 0, {{0}}, 0, 0, 0, 0, 0 } #define INIT_TSS { \ 0,0, /* back_link, __blh */ \ sizeof(init_stack) + (long) &init_stack, /* esp0 */ \ __KERNEL_DS, 0, /* ss0 */ \ 0,0,0,0,0,0, /* stack1, stack2 */ \ 0, /* cr3 */ \ 0,0, /* eip,eflags */ \ 0,0,0,0, /* eax,ecx,edx,ebx */ \ 0,0,0,0, /* esp,ebp,esi,edi */ \ 0,0,0,0,0,0, /* es,cs,ss */ \ 0,0,0,0,0,0, /* ds,fs,gs */ \ 0,0, /* ldt */ \ 0, INVALID_IO_BITMAP_OFFSET, /* tace, bitmap */ \ {~0, } /* ioperm */ \ } #define start_thread(regs, new_eip, new_esp) do { \ __asm__("movl %0,%%fs ; movl %0,%%gs": :"r" (0)); \ set_fs(USER_DS); \ regs->xds = __USER_DS; \ regs->xes = __USER_DS; \ regs->xss = __USER_DS; \ regs->xcs = __USER_CS; \ regs->eip = new_eip; \ regs->esp = new_esp; \ } while (0) /* Forward declaration, a strange C thing */ struct task_struct; struct mm_struct; /* Free all resources held by a thread. */ extern void release_thread(struct task_struct *); /* * create a kernel thread without removing it from tasklists */ extern int arch_kernel_thread(int (*fn)(void *), void * arg, unsigned long flags); /* Copy and release all segment info associated with a VM * Unusable due to lack of error handling, use {init_new,destroy}_context * instead. */ static inline void copy_segments(struct task_struct *p, struct mm_struct * mm) { } static inline void release_segments(struct mm_struct * mm) { } /* * Return saved PC of a blocked thread. */ static inline unsigned long thread_saved_pc(struct thread_struct *t) { return ((unsigned long *)t->esp)[3]; } unsigned long get_wchan(struct task_struct *p); #define KSTK_EIP(tsk) (((unsigned long *)(4096+(unsigned long)(tsk)))[1019]) #define KSTK_ESP(tsk) (((unsigned long *)(4096+(unsigned long)(tsk)))[1022]) #define THREAD_SIZE (2*PAGE_SIZE) #define alloc_task_struct() ((struct task_struct *) __get_free_pages(GFP_KERNEL,1)) #define free_task_struct(p) free_pages((unsigned long) (p), 1) #define get_task_struct(tsk) atomic_inc(&virt_to_page(tsk)->count) #define init_task (init_task_union.task) #define init_stack (init_task_union.stack) struct microcode { unsigned int hdrver; unsigned int rev; unsigned int date; unsigned int sig; unsigned int cksum; unsigned int ldrver; unsigned int pf; unsigned int reserved[5]; unsigned int bits[500]; }; /* '6' because it used to be for P6 only (but now covers Pentium 4 as well) */ #define MICROCODE_IOCFREE _IO('6',0) /* REP NOP (PAUSE) is a good thing to insert into busy-wait loops. */ static inline void rep_nop(void) { __asm__ __volatile__("rep;nop" ::: "memory"); } #define cpu_relax() rep_nop() /* Prefetch instructions for Pentium III and AMD Athlon */ #if defined(CONFIG_MPENTIUMIII) || defined (CONFIG_MPENTIUM4) #define ARCH_HAS_PREFETCH extern inline void prefetch(const void *x) { __asm__ __volatile__ ("prefetchnta (%0)" : : "r"(x)); } #elif CONFIG_X86_USE_3DNOW #define ARCH_HAS_PREFETCH #define ARCH_HAS_PREFETCHW #define ARCH_HAS_SPINLOCK_PREFETCH extern inline void prefetch(const void *x) { __asm__ __volatile__ ("prefetch (%0)" : : "r"(x)); } extern inline void prefetchw(const void *x) { __asm__ __volatile__ ("prefetchw (%0)" : : "r"(x)); } #define spin_lock_prefetch(x) prefetchw(x) #endif #endif /* __ASM_I386_PROCESSOR_H */