X-Git-Url: https://git.saurik.com/cycript.git/blobdiff_plain/b6d0605d27499279414e2433fae470302c99c110..2c4a8bb6222b88ff96fbf25372179646ce15f706:/Console.cpp?ds=sidebyside diff --git a/Console.cpp b/Console.cpp index 25f624e..2f24e58 100644 --- a/Console.cpp +++ b/Console.cpp @@ -1,359 +1,1159 @@ -/* Cycript - Remove Execution Server and Disassembler - * Copyright (C) 2009 Jay Freeman (saurik) +/* Cycript - The Truly Universal Scripting Language + * Copyright (C) 2009-2016 Jay Freeman (saurik) */ -/* Modified BSD License {{{ */ +/* GNU Affero General Public License, Version 3 {{{ */ /* - * Redistribution and use in source and binary - * forms, with or without modification, are permitted - * provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the - * above copyright notice, this list of conditions - * and the following disclaimer. - * 2. Redistributions in binary form must reproduce the - * above copyright notice, this list of conditions - * and the following disclaimer in the documentation - * and/or other materials provided with the - * distribution. - * 3. The name of the author may not be used to endorse - * or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' - * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, - * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE - * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT - * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR - * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF - * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR - * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN - * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF - * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. -*/ -/* }}} */ + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU Affero General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. -#define _GNU_SOURCE + * 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 Affero General Public License for more details. + + * You should have received a copy of the GNU Affero General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. +**/ +/* }}} */ -#include <substrate.h> #include "cycript.hpp" +#ifdef CY_EXECUTE +#include "JavaScript.hpp" +#endif + #include <cstdio> +#include <complex> +#include <fstream> #include <sstream> -#include <setjmp.h> - +#ifdef HAVE_READLINE_H +#include <readline.h> +#else #include <readline/readline.h> -#include <readline/history.h> +#endif -#include <sys/mman.h> +#ifdef HAVE_HISTORY_H +#include <history.h> +#else +#include <readline/history.h> +#endif #include <errno.h> +#include <getopt.h> +#include <setjmp.h> +#include <signal.h> #include <unistd.h> +#include <sys/socket.h> #include <sys/types.h> #include <sys/stat.h> #include <fcntl.h> +#include <netdb.h> -#include "Cycript.tab.hh" - +#include <sys/ioctl.h> #include <sys/types.h> #include <sys/socket.h> #include <netinet/in.h> #include <sys/un.h> +#include <dlfcn.h> +#include <pwd.h> +#include <term.h> + +#ifdef __APPLE__ +#include <mach/mach_time.h> +#endif + +#include "Code.hpp" +#include "Driver.hpp" +#include "Error.hpp" +#include "Highlight.hpp" +#include "Syntax.hpp" + +extern "C" int rl_display_fixed; +extern "C" int _rl_vis_botlin; +extern "C" int _rl_last_c_pos; +extern "C" int _rl_last_v_pos; + +typedef std::complex<int> CYCursor; + +static CYCursor current_; +static int width_; +static size_t point_; + +unsigned CYDisplayWidth() { + struct winsize info; + if (ioctl(1, TIOCGWINSZ, &info) != -1) + return info.ws_col; + return tgetnum(const_cast<char *>("co")); +} + +void CYDisplayOutput_(bool display, const char *&data) { + for (;; ++data) { + char next(*data); + if (next == '\0' || next == CYIgnoreEnd) + return; + if (display) + putchar(next); + } +} + +CYCursor CYDisplayOutput(bool display, int width, const char *data, ssize_t offset = 0) { + CYCursor point(current_); + + for (;;) { + if (offset-- == 0) + point = current_; + switch (char next = *data++) { + case '\0': + return point; + break; + + case CYIgnoreStart: + CYDisplayOutput_(display, data); + case CYIgnoreEnd: + ++offset; + break; + + default: + if (display) + putchar(next); + current_ += CYCursor(0, 1); + if (current_.imag() != width) + break; + current_ = CYCursor(current_.real() + 1, 0); + if (display) + putp(clr_eos); + break; + + case '\n': + current_ = CYCursor(current_.real() + 1, 4); + if (display) { + putp(clr_eol); + putchar('\n'); + putchar(' '); + putchar(' '); + putchar(' '); + putchar(' '); + } + break; + + } + } +} + +void CYDisplayMove_(char *negative, char *positive, int offset) { + if (offset < 0) + putp(tparm(negative, -offset)); + else if (offset > 0) + putp(tparm(positive, offset)); +} + +void CYDisplayMove(CYCursor target) { + CYCursor offset(target - current_); + + CYDisplayMove_(parm_up_cursor, parm_down_cursor, offset.real()); + + if (char *parm = tparm(column_address, target.imag())) + putp(parm); + else + CYDisplayMove_(parm_left_cursor, parm_right_cursor, offset.imag()); + + current_ = target; +} + +void CYDisplayUpdate() { + current_ = CYCursor(_rl_last_v_pos, _rl_last_c_pos); + + const char *prompt(rl_display_prompt); + + std::ostringstream stream; + CYLexerHighlight(rl_line_buffer, rl_end, stream, true); + std::string string(stream.str()); + const char *buffer(string.c_str()); + + int width(CYDisplayWidth()); + if (width_ != width) { + current_ = CYCursor(); + CYDisplayOutput(false, width, prompt); + current_ = CYDisplayOutput(false, width, buffer, point_); + } + + CYDisplayMove(CYCursor()); + CYDisplayOutput(true, width, prompt); + CYCursor target(CYDisplayOutput(true, width, stream.str().c_str(), rl_point)); + + _rl_vis_botlin = current_.real(); + + if (current_.imag() == 0) + CYDisplayOutput(true, width, " "); + putp(clr_eos); + + CYDisplayMove(target); + fflush(stdout); + + _rl_last_v_pos = current_.real(); + _rl_last_c_pos = current_.imag(); + + width_ = width; + point_ = rl_point; +} + +static volatile enum { + Working, + Parsing, + Running, + Sending, + Waiting, +} mode_; + static jmp_buf ctrlc_; static void sigint(int) { - longjmp(ctrlc_, 1); + switch (mode_) { + case Working: + return; + case Parsing: + longjmp(ctrlc_, 1); + case Running: +#ifndef __ANDROID__ + CYCancel(); +#endif + return; + case Sending: + return; + case Waiting: + return; + } } -void Run(int socket, const char *data, size_t size, FILE *fout, bool expand = false) { - CYPool pool; +static bool bison_; +static bool timing_; +static bool strict_; +static bool pretty_; - const char *json; - if (socket == -1) { - json = CYExecute(pool, data); - if (json != NULL) +void Setup(CYDriver &driver) { + if (bison_) + driver.debug_ = 1; + if (strict_) + driver.strict_ = true; +} + +void Setup(CYOutput &out, CYDriver &driver, CYOptions &options, bool lower) { + out.pretty_ = pretty_; + if (lower) + driver.Replace(options); +} + +class CYRemote { + public: + virtual CYUTF8String Run(CYPool &pool, CYUTF8String code) = 0; + + inline CYUTF8String Run(CYPool &pool, const std::string &code) { + return Run(pool, CYUTF8String(code.c_str(), code.size())); + } +}; + +class CYLocalRemote : + public CYRemote +{ + public: + virtual CYUTF8String Run(CYPool &pool, CYUTF8String code) { + const char *json; + uint32_t size; + + mode_ = Running; +#ifdef CY_EXECUTE + json = CYExecute(CYGetJSContext(), pool, code); +#else + json = NULL; +#endif + mode_ = Working; + if (json == NULL) + size = 0; + else size = strlen(json); - } else { - CYSendAll(socket, &size, sizeof(size)); - CYSendAll(socket, data, size); - CYRecvAll(socket, &size, sizeof(size)); - if (size == _not(size_t)) + + return CYUTF8String(json, size); + } +}; + +class CYSocketRemote : + public CYRemote +{ + private: + int socket_; + + public: + CYSocketRemote(const char *host, const char *port) { + struct addrinfo hints; + memset(&hints, 0, sizeof(hints)); + hints.ai_family = AF_UNSPEC; + hints.ai_socktype = SOCK_STREAM; + hints.ai_protocol = 0; + hints.ai_flags = 0; + + struct addrinfo *infos; + _syscall(getaddrinfo(host, port, &hints, &infos)); + + _assert(infos != NULL); try { + for (struct addrinfo *info(infos); info != NULL; info = info->ai_next) { + socket_ = _syscall(socket(info->ai_family, info->ai_socktype, info->ai_protocol)); try { + _syscall(connect(socket_, info->ai_addr, info->ai_addrlen)); + break; + } catch (...) { + _syscall(close(socket_)); + throw; + } + } + } catch (...) { + freeaddrinfo(infos); + throw; + } + } + + virtual CYUTF8String Run(CYPool &pool, CYUTF8String code) { + const char *json; + uint32_t size; + + mode_ = Sending; + size = code.size; + _assert(CYSendAll(socket_, &size, sizeof(size))); + _assert(CYSendAll(socket_, code.data, code.size)); + mode_ = Waiting; + _assert(CYRecvAll(socket_, &size, sizeof(size))); + if (size == _not(uint32_t)) { + size = 0; json = NULL; - else { + } else { char *temp(new(pool) char[size + 1]); - CYRecvAll(socket, temp, size); + _assert(CYRecvAll(socket_, temp, size)); temp[size] = '\0'; json = temp; } + mode_ = Working; + + return CYUTF8String(json, size); + } +}; + +void InjectLibrary(pid_t, std::ostream &stream, int, const char *const []); + +class CYInjectRemote : + public CYRemote +{ + private: + int pid_; + + public: + CYInjectRemote(int pid) : + pid_(pid) + { + // XXX: wait + } + + virtual CYUTF8String Run(CYPool &pool, CYUTF8String code) { + std::ostringstream stream; + const char *args[2] = {"-e", code.data}; + InjectLibrary(pid_, stream, 2, args); + std::string json(stream.str()); + if (!json.empty() && json[json.size() - 1] == '\n') + json.resize(json.size() - 1); + return CYUTF8String(strdup(json.c_str()), json.size()); } +}; + +static std::ostream *out_; + +static void Output(CYUTF8String json, std::ostream *out, bool reparse = false) { + CYPool pool; + + if (reparse) do { + CYStream stream(json.data, json.data + json.size); + CYDriver driver(pool, stream); + if (driver.Parse(CYMarkExpression)) + break; + std::stringbuf str; + CYOptions options; + CYOutput out(str, options); + out.pretty_ = true; + out << *driver.context_; + std::string data(str.str()); + json = CYPoolUTF8String(pool, data); + if (json.size == 0) + json.data = NULL; + } while (false); + + const char *data(json.data); + size_t size(json.size); + + if (size == 0 || out == NULL) + return; + + CYLexerHighlight(data, size, *out); + *out << std::endl; +} + +int (*append_history$)(int, const char *); + +static std::string command_; + +static CYRemote *remote_; + +static CYUTF8String Run(CYPool &pool, const std::string &code) { + return remote_->Run(pool, code); +} + +static char **Complete(const char *word, int start, int end) { + rl_attempted_completion_over = ~0; + std::string line(rl_line_buffer, start); + char **values(CYComplete(word, command_ + line, &Run)); + mode_ = Parsing; + return values; +} - if (json != NULL && fout != NULL) { - if (!expand || json[0] != '"' && json[0] != '\'') - fputs(json, fout); - else for (size_t i(0); i != size; ++i) - if (json[i] != '\\') - fputc(json[i], fout); - else switch(json[++i]) { - case '\0': goto done; - case '\\': fputc('\\', fout); break; - case '\'': fputc('\'', fout); break; - case '"': fputc('"', fout); break; - case 'b': fputc('\b', fout); break; - case 'f': fputc('\f', fout); break; - case 'n': fputc('\n', fout); break; - case 'r': fputc('\r', fout); break; - case 't': fputc('\t', fout); break; - case 'v': fputc('\v', fout); break; - default: fputc('\\', fout); --i; break; +// need char *, not const char * +static char name_[] = "cycript"; +static char break_[] = " \t\n\"\\'`@><=;|&{(" ")}" ".:[]"; + +class History { + private: + std::string histfile_; + size_t histlines_; + + public: + History(std::string histfile) : + histfile_(histfile), + histlines_(0) + { + read_history(histfile_.c_str()); + + for (HIST_ENTRY *history((history_set_pos(0), current_history())); history; history = next_history()) + for (char *character(history->line); *character; ++character) + if (*character == '\x01') *character = '\n'; + } + + ~History() { try { + for (HIST_ENTRY *history((history_set_pos(0), current_history())); history; history = next_history()) + for (char *character(history->line); *character; ++character) + if (*character == '\n') *character = '\x01'; + + if (append_history$ != NULL) { + int fd(_syscall(open(histfile_.c_str(), O_CREAT | O_WRONLY, 0600))); + _syscall(close(fd)); + _assert((*append_history$)(histlines_, histfile_.c_str()) == 0); + } else { + _assert(write_history(histfile_.c_str()) == 0); + } + } catch (const CYException &error) { + CYPool pool; + std::cout << error.PoolCString(pool) << std::endl; + } } + + void operator +=(std::string command) { + if (HIST_ENTRY *entry = history_get(where_history())) + if (command == entry->line) + return; + add_history(command.c_str()); + ++histlines_; + } +}; + +template <typename Type_> +static Type_ *CYmemrchr(Type_ *data, Type_ value, size_t size) { + while (size != 0) + if (data[--size] == value) + return data + size; + return NULL; +} + +static void _lblcall(int (*command)(int, int), int count, int key) { + int last(_rl_last_c_pos); + // rl_rubout crashes in _rl_erase_at_end_of_line if _rl_last_c_pos != 0 + if (command == &rl_rubout) + _rl_last_c_pos = 0; + for (int i(0); i != count; ++i) + if (command(1, key) != 0) + _assert(false); + _rl_last_c_pos = last; +} + +static int CYConsoleKeyReturn(int count, int key) { + if (rl_point != rl_end) { + if (memchr(rl_line_buffer, '\n', rl_end) == NULL) { + _lblcall(&rl_newline, count, key); + return 0; + } + + insert: + char *before(CYmemrchr(rl_line_buffer, '\n', rl_point)); + if (before == NULL) + before = rl_line_buffer; + + int space(before + 1 - rl_line_buffer); + while (space != rl_point && rl_line_buffer[space] == ' ') + ++space; + + int adjust(rl_line_buffer + space - 1 - before); + if (space == rl_point && adjust != 0) + _lblcall(&rl_rubout, adjust, '\b'); + + _lblcall(&rl_insert, count, '\n'); + if (adjust != 0) + _lblcall(&rl_insert, adjust, ' '); + + return 0; + } + + bool done(false); + if (rl_line_buffer[0] == '?') + done = true; + else { + std::string command(rl_line_buffer, rl_end); + command += '\n'; + std::stringbuf stream(command); + + size_t last(std::string::npos); + for (size_t i(0); i != std::string::npos; i = command.find('\n', i + 1)) + ++last; + + CYPool pool; + CYDriver driver(pool, stream); + if (driver.Parse() || !driver.errors_.empty()) + for (CYDriver::Errors::const_iterator error(driver.errors_.begin()); error != driver.errors_.end(); ++error) { + if (error->location_.begin.line != last + 1) + done = true; + break; } + else + done = true; + } - done: - fputs("\n", fout); - fflush(fout); + if (done) { + _lblcall(&rl_newline, count, key); + return 0; } + + // XXX: this was the most obvious fix, but is seriously dumb + goto insert; } -void Run(int socket, std::string &code, FILE *fout, bool expand = false) { - Run(socket, code.c_str(), code.size(), fout, expand); +static int CYConsoleKeyUp(int count, int key) { + for (; count != 0; --count) { + char *after(CYmemrchr(rl_line_buffer, '\n', rl_point)); + if (after == NULL) { + if (int value = rl_get_previous_history(1, key)) + return value; + continue; + } + + char *before(CYmemrchr(rl_line_buffer, '\n', after - rl_line_buffer)); + if (before == NULL) + before = rl_line_buffer - 1; + + ptrdiff_t offset(rl_line_buffer + rl_point - after); + if (offset > after - before) + rl_point = after - rl_line_buffer; + else + rl_point = before + offset - rl_line_buffer; + } + + return 0; +} + +static int CYConsoleKeyDown(int count, int key) { + for (; count != 0; --count) { + char *after(static_cast<char *>(memchr(rl_line_buffer + rl_point, '\n', rl_end - rl_point))); + if (after == NULL) { + int where(where_history()); + if (int value = rl_get_next_history(1, key)) + return value; + if (where != where_history()) { + char *first(static_cast<char *>(memchr(rl_line_buffer, '\n', rl_end))); + if (first != NULL) + rl_point = first - 1 - rl_line_buffer; + } + continue; + } + + char *before(CYmemrchr(rl_line_buffer, '\n', rl_point)); + if (before == NULL) + before = rl_line_buffer - 1; + + char *next(static_cast<char *>(memchr(after + 1, '\n', rl_line_buffer + rl_end - after - 1))); + if (next == NULL) + next = rl_line_buffer + rl_end; + + ptrdiff_t offset(rl_line_buffer + rl_point - before); + if (offset > next - after) + rl_point = next - rl_line_buffer; + else + rl_point = after + offset - rl_line_buffer; + } + + return 0; +} + +static int CYConsoleLineBegin(int count, int key) { + while (rl_point != 0 && rl_line_buffer[rl_point - 1] != '\n') + --rl_point; + return 0; +} + +static int CYConsoleLineEnd(int count, int key) { + while (rl_point != rl_end && rl_line_buffer[rl_point] != '\n') + ++rl_point; + if (rl_point != rl_end && rl_editing_mode == 0) + --rl_point; + return 0; +} + +static int CYConsoleKeyBack(int count, int key) { + for (; count != 0; --count) { + if (rl_point == 0) + return 1; + + char *before(CYmemrchr(rl_line_buffer, '\n', rl_point)); + if (before == NULL) { + int adjust(std::min(count, rl_point)); + _lblcall(&rl_rubout, adjust, key); + count -= adjust - 1; + continue; + } + + int start(before + 1 - rl_line_buffer); + if (start == rl_point) rubout: { + _lblcall(&rl_rubout, 1, key); + continue; + } + + for (int i(start); i != rl_point; ++i) + if (rl_line_buffer[i] != ' ') + goto rubout; + _lblcall(&rl_rubout, (rl_point - start) % 4 ?: 4, key); + } + + return 0; +} + +static int CYConsoleKeyTab(int count, int key) { + char *before(CYmemrchr(rl_line_buffer, '\n', rl_point)); + if (before == NULL) complete: + return rl_complete_internal(rl_completion_mode(&CYConsoleKeyTab)); + int start(before + 1 - rl_line_buffer); + for (int i(start); i != rl_point; ++i) + if (rl_line_buffer[i] != ' ') + goto complete; + _lblcall(&rl_insert, 4 - (rl_point - start) % 4, ' '); + return 0; +} + +static void CYConsoleRemapBind(Keymap map, rl_command_func_t *from, rl_command_func_t *to) { + char **keyseqs(rl_invoking_keyseqs_in_map(from, map)); + if (keyseqs == NULL) + return; + for (char **keyseq(keyseqs); *keyseq != NULL; ++keyseq) { + rl_bind_keyseq_in_map(*keyseq, to, map); + free(*keyseq); + } + free(keyseqs); } -static void Console(int socket) { +static void CYConsoleRemapKeys(Keymap map) { + CYConsoleRemapBind(map, &rl_beg_of_line, &CYConsoleLineBegin); + CYConsoleRemapBind(map, &rl_end_of_line, &CYConsoleLineEnd); + + CYConsoleRemapBind(map, &rl_get_previous_history, &CYConsoleKeyUp); + CYConsoleRemapBind(map, &rl_get_next_history, &CYConsoleKeyDown); + + CYConsoleRemapBind(map, &rl_rubout, &CYConsoleKeyBack); + CYConsoleRemapBind(map, &rl_complete, &CYConsoleKeyTab); +} + +static void CYConsolePrepTerm(int meta) { + rl_prep_terminal(meta); + + CYConsoleRemapKeys(emacs_standard_keymap); + CYConsoleRemapKeys(emacs_meta_keymap); + CYConsoleRemapKeys(emacs_ctlx_keymap); + CYConsoleRemapKeys(vi_insertion_keymap); + CYConsoleRemapKeys(vi_movement_keymap); +} + +static void CYOutputRun(const std::string &code, bool reparse = false) { + CYPool pool; + Output(Run(pool, code), &std::cout, reparse); +} + +static void Console(CYOptions &options) { + std::string basedir; +#ifdef __ANDROID__ + basedir = "/data/local/tmp"; +#else + if (const char *home = getenv("HOME")) + basedir = home; + else { + passwd *passwd; + if (const char *username = getenv("LOGNAME")) + passwd = getpwnam(username); + else + passwd = getpwuid(getuid()); + basedir = passwd->pw_dir; + } +#endif + + basedir += "/.cycript"; + mkdir(basedir.c_str(), 0700); + + rl_initialize(); + rl_readline_name = name_; + + History history(basedir + "/history"); + bool bypass(false); bool debug(false); - bool expand(false); + bool lower(true); + bool reparse(false); - FILE *fout(stdout); + out_ = &std::cout; - rl_bind_key('\t', rl_insert); + rl_completer_word_break_characters = break_; + rl_attempted_completion_function = &Complete; - struct sigaction action; - sigemptyset(&action.sa_mask); - action.sa_handler = &sigint; - action.sa_flags = 0; - sigaction(SIGINT, &action, NULL); + if (cur_term != NULL) { + rl_redisplay_function = CYDisplayUpdate; + rl_prep_term_function = CYConsolePrepTerm; + } - restart: for (;;) { - std::string command; - std::vector<std::string> lines; + CYOutputRun(""); - bool extra(false); - const char *prompt("cy# "); + for (;;) { + struct sigaction action; + sigemptyset(&action.sa_mask); + action.sa_handler = &sigint; + action.sa_flags = 0; + sigaction(SIGINT, &action, NULL); if (setjmp(ctrlc_) != 0) { - fputs("\n", fout); - fflush(fout); - goto restart; + mode_ = Working; + *out_ << std::endl; + continue; } - read: - char *line(readline(prompt)); - if (line == NULL) - break; + if (bypass) { + rl_bind_key('\r', &rl_newline); + rl_bind_key('\n', &rl_newline); + } else { + rl_bind_key('\r', &CYConsoleKeyReturn); + rl_bind_key('\n', &CYConsoleKeyReturn); + } - if (!extra) { - extra = true; - if (line[0] == '?') { - std::string data(line + 1); - if (data == "bypass") { - bypass = !bypass; - fprintf(fout, "bypass == %s\n", bypass ? "true" : "false"); - fflush(fout); - } else if (data == "debug") { - debug = !debug; - fprintf(fout, "debug == %s\n", debug ? "true" : "false"); - fflush(fout); - } else if (data == "expand") { - expand = !expand; - fprintf(fout, "expand == %s\n", expand ? "true" : "false"); - fflush(fout); - } - add_history(line); - goto restart; - } + mode_ = Parsing; + char *line(readline("cy# ")); + mode_ = Working; + + if (line == NULL) { + *out_ << std::endl; + break; } - lines.push_back(line); - command += line; + std::string command(line); free(line); + if (command.empty()) + continue; + history += command; - std::string code; + if (command[0] == '?') { + std::string data(command.substr(1)); + if (data == "bypass") { + bypass = !bypass; + *out_ << "bypass == " << (bypass ? "true" : "false") << std::endl; + } else if (data == "debug") { + debug = !debug; + *out_ << "debug == " << (debug ? "true" : "false") << std::endl; + } else if (data == "destroy") { + CYDestroyContext(); + } else if (data == "gc") { + *out_ << "collecting... " << std::flush; + CYGarbageCollect(CYGetJSContext()); + *out_ << "done." << std::endl; + } else if (data == "exit") { + return; + } else if (data == "lower") { + lower = !lower; + *out_ << "lower == " << (lower ? "true" : "false") << std::endl; + } else if (data == "reparse") { + reparse = !reparse; + *out_ << "reparse == " << (reparse ? "true" : "false") << std::endl; + } + continue; + } + + std::string code; if (bypass) code = command; - else { - CYDriver driver(""); - cy::parser parser(driver); + else try { + std::stringbuf stream(command); - driver.data_ = command.c_str(); - driver.size_ = command.size(); + CYPool pool; + CYDriver driver(pool, stream); + Setup(driver); - if (parser.parse() != 0 || !driver.errors_.empty()) { + if (driver.Parse() || !driver.errors_.empty()) { for (CYDriver::Errors::const_iterator error(driver.errors_.begin()); error != driver.errors_.end(); ++error) { - cy::position begin(error->location_.begin); - if (begin.line != lines.size() || begin.column - 1 != lines.back().size()) { - cy::position end(error->location_.end); - if (begin.line != lines.size()) { - std::cerr << " | "; - std::cerr << lines[begin.line - 1] << std::endl; - } - std::cerr << " | "; - for (size_t i(0); i != begin.column - 1; ++i) - std::cerr << '.'; - if (begin.line != end.line) - std::cerr << '^'; - else for (size_t i(0), e(end.column - begin.column); i != e; ++i) - std::cerr << '^'; - std::cerr << std::endl; + CYPosition begin(error->location_.begin); + CYPosition end(error->location_.end); + + /*if (begin.line != lines2.size()) { std::cerr << " | "; - std::cerr << error->message_ << std::endl; - add_history(command.c_str()); - goto restart; - } - } + std::cerr << lines2[begin.line - 1] << std::endl; + }*/ - driver.errors_.clear(); + std::cerr << "...."; + for (size_t i(0); i != begin.column; ++i) + std::cerr << '.'; + if (begin.line != end.line || begin.column == end.column) + std::cerr << '^'; + else for (size_t i(0), e(end.column - begin.column); i != e; ++i) + std::cerr << '^'; + std::cerr << std::endl; - command += '\n'; - prompt = "cy> "; - goto read; - } + std::cerr << " | "; + std::cerr << error->message_ << std::endl; - if (driver.source_ == NULL) - goto restart; + break; + } - if (socket != -1) - code = command; - else { - std::ostringstream str; - driver.source_->Show(str); - code = str.str(); + continue; } - } - add_history(command.c_str()); + if (driver.script_ == NULL) + continue; - if (debug) - std::cout << code << std::endl; + std::stringbuf str; + CYOutput out(str, options); + Setup(out, driver, options, lower); + out << *driver.script_; + code = str.str(); + } catch (const CYException &error) { + CYPool pool; + std::cout << error.PoolCString(pool) << std::endl; + continue; + } + + if (debug) { + std::cout << "cy= "; + CYLexerHighlight(code.c_str(), code.size(), std::cout); + std::cout << std::endl; + } - Run(socket, code, fout, expand); + CYOutputRun(code, reparse); } +} - fputs("\n", fout); - fflush(fout); +static uint64_t CYGetTime() { +#ifdef __APPLE__ + return mach_absolute_time(); +#else + struct timespec spec; + clock_gettime(CLOCK_MONOTONIC, &spec); + return spec.tv_sec * UINT64_C(1000000000) + spec.tv_nsec; +#endif } -static void *Map(const char *path, size_t *psize) { - int fd; - _syscall(fd = open(path, O_RDONLY)); +int Main(int argc, char * const argv[], char const * const envp[]) { + bool tty(isatty(STDIN_FILENO)); + bool compile(false); + bool target(false); + CYOptions options; - struct stat stat; - _syscall(fstat(fd, &stat)); - size_t size(stat.st_size); + append_history$ = (int (*)(int, const char *)) (dlsym(RTLD_DEFAULT, "append_history")); - *psize = size; + pid_t pid(_not(pid_t)); - void *base; - _syscall(base = mmap(NULL, size, PROT_READ, MAP_SHARED, fd, 0)); + const char *host(NULL); + const char *port(NULL); - _syscall(close(fd)); - return base; -} + const char *argv0(argv[0]); -int main(int argc, char *argv[]) { - pid_t pid(_not(pid_t)); + optind = 1; - for (;;) switch (getopt(argc, argv, "p:")) { - case -1: - goto getopt; - case '?': - fprintf(stderr, "usage: cycript [-p <pid>] [<script> [<arg>...]]\n"); - return 1; + for (;;) { + int option(getopt_long(argc, argv, + "c" + "g:" + "n:" + "p:" + "r:" + "s" + , (const struct option[]) { + {NULL, no_argument, NULL, 'c'}, + {NULL, required_argument, NULL, 'g'}, + {NULL, required_argument, NULL, 'n'}, + {NULL, required_argument, NULL, 'p'}, + {NULL, required_argument, NULL, 'r'}, + {NULL, no_argument, NULL, 's'}, + {0, 0, 0, 0}}, NULL)); - case 'p': { - size_t size(strlen(optarg)); - char *end; - pid = strtoul(optarg, &end, 0); - if (optarg + size != end) { - fprintf(stderr, "invalid pid for -p\n"); + switch (option) { + case -1: + goto getopt; + + case ':': + case '?': + fprintf(stderr, + "usage: cycript [-c]" + " [-p <pid|name>]" + " [-r <host:port>]" + " [<script> [<arg>...]]\n" + ); return 1; - } - } break; - } getopt:; + + target: + if (!target) + target = true; + else { + fprintf(stderr, "only one of -[cpr] may be used at a time\n"); + return 1; + } + break; + + case 'c': + compile = true; + goto target; + + case 'g': + if (false); + else if (strcmp(optarg, "rename") == 0) + options.verbose_ = true; + else if (strcmp(optarg, "bison") == 0) + bison_ = true; + else if (strcmp(optarg, "timing") == 0) + timing_ = true; + else { + fprintf(stderr, "invalid name for -g\n"); + return 1; + } + break; + + case 'n': + if (false); + else if (strcmp(optarg, "minify") == 0) + pretty_ = true; + else { + fprintf(stderr, "invalid name for -n\n"); + return 1; + } + break; + + case 'p': { + size_t size(strlen(optarg)); + char *end; + + pid = strtoul(optarg, &end, 0); + if (optarg + size != end) { + // XXX: arg needs to be escaped in some horrendous way of doom + // XXX: this is a memory leak now because I just don't care enough + char *command; + int writ(asprintf(&command, "ps axc|sed -e '/^ *[0-9]/{s/^ *\\([0-9]*\\)\\( *[^ ]*\\)\\{3\\} *-*\\([^ ]*\\)/\\3 \\1/;/^%s /{s/^[^ ]* //;q;};};d'", optarg)); + _assert(writ != -1); + + if (FILE *pids = popen(command, "r")) { + char value[32]; + size = 0; + + for (;;) { + size_t read(fread(value + size, 1, sizeof(value) - size, pids)); + if (read == 0) + break; + else { + size += read; + if (size == sizeof(value)) + goto fail; + } + } + + size: + if (size == 0) + goto fail; + if (value[size - 1] == '\n') { + --size; + goto size; + } + + value[size] = '\0'; + size = strlen(value); + pid = strtoul(value, &end, 0); + if (value + size != end) fail: + pid = _not(pid_t); + _syscall(pclose(pids)); + } + + if (pid == _not(pid_t)) { + fprintf(stderr, "unable to find process `%s' using ps\n", optarg); + return 1; + } + } + } goto target; + + case 'r': { + //size_t size(strlen(optarg)); + + char *colon(strrchr(optarg, ':')); + if (colon == NULL) { + fprintf(stderr, "missing colon in hostspec\n"); + return 1; + } + + /*char *end; + port = strtoul(colon + 1, &end, 10); + if (end != optarg + size) { + fprintf(stderr, "invalid port in hostspec\n"); + return 1; + }*/ + + host = optarg; + *colon = '\0'; + port = colon + 1; + } goto target; + + case 's': + strict_ = true; + break; + + default: + _assert(false); + } + } + + getopt: + argc -= optind; + argv += optind; const char *script; - if (optind < argc - 1 && pid != _not(pid_t)) { + if (pid != _not(pid_t) && argc > 1) { fprintf(stderr, "-p cannot set argv\n"); return 1; } - if (optind == argc) + if (argc == 0) script = NULL; else { - // XXX: const_cast?! wtf gcc :( - CYSetArgs(argc - optind - 1, const_cast<const char **>(argv + optind + 1)); - script = argv[optind]; + script = argv[0]; if (strcmp(script, "-") == 0) script = NULL; + --argc; + ++argv; } - int socket; +#ifdef CY_EXECUTE + // XXX: const_cast?! wtf gcc :( + CYSetArgs(argv0, script, argc, const_cast<const char **>(argv)); +#endif - if (pid == _not(pid_t)) - socket = -1; - else { - socket = _syscall(::socket(PF_UNIX, SOCK_STREAM, 0)); + if (remote_ == NULL && pid != _not(pid_t)) + remote_ = new CYInjectRemote(pid); - struct sockaddr_un address; - memset(&address, 0, sizeof(address)); - address.sun_family = AF_UNIX; - sprintf(address.sun_path, "/tmp/.s.cy.%u", pid); + if (remote_ == NULL && host != NULL && port != NULL) + remote_ = new CYSocketRemote(host, port); - _syscall(connect(socket, reinterpret_cast<sockaddr *>(&address), SUN_LEN(&address))); - } + if (remote_ == NULL) + remote_ = new CYLocalRemote(); - if (script == NULL) - Console(socket); + if (script == NULL && tty) + Console(options); else { - CYDriver driver(script); - cy::parser parser(driver); + std::istream *stream; + if (script == NULL) { + stream = &std::cin; + script = "<stdin>"; + } else { + stream = new std::fstream(script, std::ios::in | std::ios::binary); + _assert(!stream->fail()); + } - size_t size; - char *start(reinterpret_cast<char *>(Map(script, &size))); - char *end(start + size); + if (timing_) { + std::stringbuf buffer; + stream->get(buffer, '\0'); + _assert(!stream->fail()); - if (size >= 2 && start[0] == '#' && start[1] == '!') { - start += 2; + double average(0); + int samples(-50); + uint64_t start(CYGetTime()); - if (void *line = memchr(start, '\n', end - start)) - start = reinterpret_cast<char *>(line); - else - start = end; + for (;;) { + stream = new std::istringstream(buffer.str()); + + CYPool pool; + CYDriver driver(pool, *stream->rdbuf(), script); + Setup(driver); + + uint64_t begin(CYGetTime()); + driver.Parse(); + uint64_t end(CYGetTime()); + + delete stream; + + average += (end - begin - average) / ++samples; + + uint64_t now(CYGetTime()); + if (samples == 0) + average = 0; + else if ((now - start) / 1000000000 >= 1) + std::cout << std::fixed << average << '\t' << (end - begin) << '\t' << samples << std::endl; + else continue; + + start = now; + } + + stream = new std::istringstream(buffer.str()); + std::cin.get(); } - driver.data_ = start; - driver.size_ = end - start; + CYPool pool; + CYDriver driver(pool, *stream->rdbuf(), script); + Setup(driver); - if (parser.parse() != 0 || !driver.errors_.empty()) { + bool failed(driver.Parse()); + + if (failed || !driver.errors_.empty()) { for (CYDriver::Errors::const_iterator i(driver.errors_.begin()); i != driver.errors_.end(); ++i) std::cerr << i->location_.begin << ": " << i->message_ << std::endl; - } else if (driver.source_ != NULL) - if (socket != -1) - Run(socket, start, end - start, stdout); + return 1; + } else if (driver.script_ != NULL) { + std::stringbuf str; + CYOutput out(str, options); + Setup(out, driver, options, true); + out << *driver.script_; + std::string code(str.str()); + if (compile) + std::cout << code; else { - std::ostringstream str; - driver.source_->Show(str); - std::string code(str.str()); - Run(socket, code, stdout); + CYUTF8String json(Run(pool, code)); + if (CYStartsWith(json, "throw ")) { + CYLexerHighlight(json.data, json.size, std::cerr); + std::cerr << std::endl; + return 1; + } } + } } return 0; } + +_visible int main(int argc, char * const argv[], char const * const envp[]) { + try { + return Main(argc, argv, envp); + } catch (const CYException &error) { + CYPool pool; + fprintf(stderr, "%s\n", error.PoolCString(pool)); + return 1; + } +}