From d616ab6bbb6c3768efb9474fa18d1e2f98c4793b Mon Sep 17 00:00:00 2001 From: Denys Vlasenko Date: Sun, 22 May 2011 03:46:33 +0200 Subject: reformime: do not require \r\n function old new delta parse 958 1063 +105 packed_usage 28691 28712 +21 Signed-off-by: Denys Vlasenko --- mailutils/Kbuild.src | 4 - mailutils/makemime.c | 218 +++++++++++++++++++++++ mailutils/mime.c | 465 ------------------------------------------------- mailutils/popmaildir.c | 2 + mailutils/reformime.c | 280 +++++++++++++++++++++++++++++ mailutils/sendmail.c | 2 + 6 files changed, 502 insertions(+), 469 deletions(-) create mode 100644 mailutils/makemime.c delete mode 100644 mailutils/mime.c create mode 100644 mailutils/reformime.c (limited to 'mailutils') diff --git a/mailutils/Kbuild.src b/mailutils/Kbuild.src index 20220da..6b4fb74 100644 --- a/mailutils/Kbuild.src +++ b/mailutils/Kbuild.src @@ -7,7 +7,3 @@ lib-y:= INSERT -lib-$(CONFIG_MAKEMIME) += mime.o mail.o -lib-$(CONFIG_POPMAILDIR) += popmaildir.o mail.o -lib-$(CONFIG_REFORMIME) += mime.o mail.o -lib-$(CONFIG_SENDMAIL) += sendmail.o mail.o diff --git a/mailutils/makemime.c b/mailutils/makemime.c new file mode 100644 index 0000000..628619b --- /dev/null +++ b/mailutils/makemime.c @@ -0,0 +1,218 @@ +/* vi: set sw=4 ts=4: */ +/* + * makemime: create MIME-encoded message + * reformime: parse MIME-encoded message + * + * Copyright (C) 2008 by Vladimir Dronnikov + * + * Licensed under GPLv2, see file LICENSE in this source tree. + */ + +//kbuild:lib-$(CONFIG_MAKEMIME) += makemime.o mail.o + +#include "libbb.h" +#include "mail.h" + +#if 0 +# define dbg_error_msg(...) bb_error_msg(__VA_ARGS__) +#else +# define dbg_error_msg(...) ((void)0) +#endif + +/* + makemime -c type [-o file] [-e encoding] [-C charset] [-N name] \ + [-a "Header: Contents"] file + -m [ type ] [-o file] [-e encoding] [-a "Header: Contents"] file + -j [-o file] file1 file2 + @file + + file: filename - read or write from filename + - - read or write from stdin or stdout + &n - read or write from file descriptor n + \( opts \) - read from child process, that generates [ opts ] + +Options: + -c type - create a new MIME section from "file" with this + Content-Type: (default is application/octet-stream). + -C charset - MIME charset of a new text/plain section. + -N name - MIME content name of the new mime section. + -m [ type ] - create a multipart mime section from "file" of this + Content-Type: (default is multipart/mixed). + -e encoding - use the given encoding (7bit, 8bit, quoted-printable, + or base64), instead of guessing. Omit "-e" and use + -c auto to set Content-Type: to text/plain or + application/octet-stream based on picked encoding. + -j file1 file2 - join mime section file2 to multipart section file1. + -o file - write the result to file, instead of stdout (not + allowed in child processes). + -a header - prepend an additional header to the output. + + @file - read all of the above options from file, one option or + value on each line. + {which version of makemime is this? What do we support?} +*/ +/* man makemime: + + * -c TYPE: create a (non-multipart) MIME section with Content-Type: TYPE + * makemime -c TYPE [-e ENCODING] [-o OUTFILE] [-C CHARSET] [-N NAME] [-a HEADER...] FILE + * The -C option sets the MIME charset attribute for text/plain content. + * The -N option sets the name attribute for Content-Type: + * Encoding must be one of the following: 7bit, 8bit, quoted-printable, or base64. + + * -m multipart/TYPE: create a multipart MIME collection with Content-Type: multipart/TYPE + * makemime -m multipart/TYPE [-e ENCODING] [-o OUTFILE] [-a HEADER...] FILE + * Type must be either "multipart/mixed", "multipart/alternative", or some other MIME multipart content type. + * Additionally, encoding can only be "7bit" or "8bit", and will default to "8bit" if not specified. + * Finally, filename must be a MIME-formatted section, NOT a regular file. + * The -m option creates an initial multipart MIME collection, that contains only one MIME section, taken from filename. + * The collection is written to standard output, or the pipe or to outputfile. + + * -j FILE1: add a section to a multipart MIME collection + * makemime -j FILE1 [-o OUTFILE] FILE2 + * FILE1 must be a MIME collection that was previously created by the -m option. + * FILE2 must be a MIME section that was previously created by the -c option. + * The -j options adds the MIME section in FILE2 to the MIME collection in FILE1. + */ + + +/* In busybox 1.15.0.svn, makemime generates output like this + * (empty lines are shown exactly!): +{headers added with -a HDR} +Mime-Version: 1.0 +Content-Type: multipart/mixed; boundary="24269534-2145583448-1655890676" + +--24269534-2145583448-1655890676 +Content-Type: {set by -c, e.g. text/plain}; charset={set by -C, e.g. us-ascii} +Content-Disposition: inline; filename="A" +Content-Transfer-Encoding: base64 + +...file A contents... +--24269534-2145583448-1655890676 +Content-Type: {set by -c, e.g. text/plain}; charset={set by -C, e.g. us-ascii} +Content-Disposition: inline; filename="B" +Content-Transfer-Encoding: base64 + +...file B contents... +--24269534-2145583448-1655890676-- + + * + * For reference: here is an example email to LKML which has + * 1st unnamed part (so it serves as an email body) + * and one attached file: +...other headers... +Content-Type: multipart/mixed; boundary="=-tOfTf3byOS0vZgxEWcX+" +...other headers... +Mime-Version: 1.0 +...other headers... + + +--=-tOfTf3byOS0vZgxEWcX+ +Content-Type: text/plain +Content-Transfer-Encoding: 7bit + +...email text... +...email text... + + +--=-tOfTf3byOS0vZgxEWcX+ +Content-Disposition: attachment; filename="xyz" +Content-Type: text/plain; name="xyz"; charset="UTF-8" +Content-Transfer-Encoding: 7bit + +...file contents... +...file contents... + +--=-tOfTf3byOS0vZgxEWcX+-- + +...random junk added by mailing list robots and such... +*/ + +//usage:#define makemime_trivial_usage +//usage: "[OPTIONS] [FILE]..." +//usage:#define makemime_full_usage "\n\n" +//usage: "Create multipart MIME-encoded message from FILEs\n" +/* //usage: "Transfer encoding is base64, disposition is inline (not attachment)\n" */ +//usage: "\nOptions:" +//usage: "\n -o FILE Output. Default: stdout" +//usage: "\n -a HDR Add header. Examples:" +//usage: "\n \"From: user@host.org\", \"Date: `date -R`\"" +//usage: "\n -c CT Content type. Default: text/plain" +//usage: "\n -C CS Charset. Default: " CONFIG_FEATURE_MIME_CHARSET +/* //usage: "\n -e ENC Transfer encoding. Ignored. base64 is assumed" */ +//usage: "\n" +//usage: "\nOther options are silently ignored" + +int makemime_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; +int makemime_main(int argc UNUSED_PARAM, char **argv) +{ + llist_t *opt_headers = NULL, *l; + const char *opt_output; +#define boundary opt_output + + enum { + OPT_c = 1 << 0, // create (non-multipart) section + OPT_e = 1 << 1, // Content-Transfer-Encoding. Ignored. Assumed base64 + OPT_o = 1 << 2, // output to + OPT_C = 1 << 3, // charset + OPT_N = 1 << 4, // COMPAT + OPT_a = 1 << 5, // additional headers + //OPT_m = 1 << 6, // create mutipart section + //OPT_j = 1 << 7, // join section to multipart section + }; + + INIT_G(); + + // parse options + opt_complementary = "a::"; + opts = getopt32(argv, + "c:e:o:C:N:a", //:m:j:", + &G.content_type, NULL, &opt_output, &G.opt_charset, NULL, &opt_headers //, NULL, NULL + ); + //argc -= optind; + argv += optind; + + // respect -o output + if (opts & OPT_o) + freopen(opt_output, "w", stdout); + + // no files given on command line? -> use stdin + if (!*argv) + *--argv = (char *)"-"; + + // put additional headers + for (l = opt_headers; l; l = l->link) + puts(l->data); + + // make a random string -- it will delimit message parts + srand(monotonic_us()); + boundary = xasprintf("%u-%u-%u", + (unsigned)rand(), (unsigned)rand(), (unsigned)rand()); + + // put multipart header + printf( + "Mime-Version: 1.0\n" + "Content-Type: multipart/mixed; boundary=\"%s\"\n" + , boundary + ); + + // put attachments + while (*argv) { + printf( + "\n--%s\n" + "Content-Type: %s; charset=%s\n" + "Content-Disposition: inline; filename=\"%s\"\n" + "Content-Transfer-Encoding: base64\n" + , boundary + , G.content_type + , G.opt_charset + , bb_get_last_path_component_strip(*argv) + ); + encode_base64(*argv++, (const char *)stdin, ""); + } + + // put multipart footer + printf("\n--%s--\n" "\n", boundary); + + return EXIT_SUCCESS; +#undef boundary +} diff --git a/mailutils/mime.c b/mailutils/mime.c deleted file mode 100644 index 0aff8b1..0000000 --- a/mailutils/mime.c +++ /dev/null @@ -1,465 +0,0 @@ -/* vi: set sw=4 ts=4: */ -/* - * makemime: create MIME-encoded message - * reformime: parse MIME-encoded message - * - * Copyright (C) 2008 by Vladimir Dronnikov - * - * Licensed under GPLv2, see file LICENSE in this source tree. - */ - -//usage:#define makemime_trivial_usage -//usage: "[OPTIONS] [FILE]..." -//usage:#define makemime_full_usage "\n\n" -//usage: "Create multipart MIME-encoded message from FILEs\n" -/* //usage: "Transfer encoding is base64, disposition is inline (not attachment)\n" */ -//usage: "\nOptions:" -//usage: "\n -o FILE Output. Default: stdout" -//usage: "\n -a HDR Add header. Examples:" -//usage: "\n \"From: user@host.org\", \"Date: `date -R`\"" -//usage: "\n -c CT Content type. Default: text/plain" -//usage: "\n -C CS Charset. Default: " CONFIG_FEATURE_MIME_CHARSET -/* //usage: "\n -e ENC Transfer encoding. Ignored. base64 is assumed" */ -//usage: "\n" -//usage: "\nOther options are silently ignored" - -//usage:#define reformime_trivial_usage -//usage: "[OPTIONS] [FILE]..." -//usage:#define reformime_full_usage "\n\n" -//usage: "Parse MIME-encoded message\n" -//usage: "\nOptions:" -//usage: "\n -x PREFIX Extract content of MIME sections to files" -//usage: "\n -X PROG ARGS Filter content of MIME sections through PROG" -//usage: "\n Must be the last option" -//usage: "\n" -//usage: "\nOther options are silently ignored" - -#include "libbb.h" -#include "mail.h" - -/* - makemime -c type [-o file] [-e encoding] [-C charset] [-N name] \ - [-a "Header: Contents"] file - -m [ type ] [-o file] [-e encoding] [-a "Header: Contents"] file - -j [-o file] file1 file2 - @file - - file: filename - read or write from filename - - - read or write from stdin or stdout - &n - read or write from file descriptor n - \( opts \) - read from child process, that generates [ opts ] - -Options: - - -c type - create a new MIME section from "file" with this - Content-Type: (default is application/octet-stream). - -C charset - MIME charset of a new text/plain section. - -N name - MIME content name of the new mime section. - -m [ type ] - create a multipart mime section from "file" of this - Content-Type: (default is multipart/mixed). - -e encoding - use the given encoding (7bit, 8bit, quoted-printable, - or base64), instead of guessing. Omit "-e" and use - -c auto to set Content-Type: to text/plain or - application/octet-stream based on picked encoding. - -j file1 file2 - join mime section file2 to multipart section file1. - -o file - write the result to file, instead of stdout (not - allowed in child processes). - -a header - prepend an additional header to the output. - - @file - read all of the above options from file, one option or - value on each line. - {which version of makemime is this? What do we support?} -*/ - - -/* In busybox 1.15.0.svn, makemime generates output like this - * (empty lines are shown exactly!): -{headers added with -a HDR} -Mime-Version: 1.0 -Content-Type: multipart/mixed; boundary="24269534-2145583448-1655890676" - ---24269534-2145583448-1655890676 -Content-Type: {set by -c, e.g. text/plain}; charset={set by -C, e.g. us-ascii} -Content-Disposition: inline; filename="A" -Content-Transfer-Encoding: base64 - -...file A contents... ---24269534-2145583448-1655890676 -Content-Type: {set by -c, e.g. text/plain}; charset={set by -C, e.g. us-ascii} -Content-Disposition: inline; filename="B" -Content-Transfer-Encoding: base64 - -...file B contents... ---24269534-2145583448-1655890676-- - -*/ - - -/* For reference: here is an example email to LKML which has - * 1st unnamed part (so it serves as an email body) - * and one attached file: -...other headers... -Content-Type: multipart/mixed; boundary="=-tOfTf3byOS0vZgxEWcX+" -...other headers... -Mime-Version: 1.0 -...other headers... - - ---=-tOfTf3byOS0vZgxEWcX+ -Content-Type: text/plain -Content-Transfer-Encoding: 7bit - -...email text... -...email text... - - ---=-tOfTf3byOS0vZgxEWcX+ -Content-Disposition: attachment; filename="xyz" -Content-Type: text/plain; name="xyz"; charset="UTF-8" -Content-Transfer-Encoding: 7bit - -...file contents... -...file contents... - ---=-tOfTf3byOS0vZgxEWcX+-- - -...random junk added by mailing list robots and such... -*/ - -/* man makemime: - - * -c TYPE: create a (non-multipart) MIME section with Content-Type: TYPE - * makemime -c TYPE [-e ENCODING] [-o OUTFILE] [-C CHARSET] [-N NAME] [-a HEADER...] FILE - * The -C option sets the MIME charset attribute for text/plain content. - * The -N option sets the name attribute for Content-Type: - * Encoding must be one of the following: 7bit, 8bit, quoted-printable, or base64. - - * -m multipart/TYPE: create a multipart MIME collection with Content-Type: multipart/TYPE - * makemime -m multipart/TYPE [-e ENCODING] [-o OUTFILE] [-a HEADER...] FILE - * Type must be either "multipart/mixed", "multipart/alternative", or some other MIME multipart content type. - * Additionally, encoding can only be "7bit" or "8bit", and will default to "8bit" if not specified. - * Finally, filename must be a MIME-formatted section, NOT a regular file. - * The -m option creates an initial multipart MIME collection, that contains only one MIME section, taken from filename. - * The collection is written to standard output, or the pipe or to outputfile. - - * -j FILE1: add a section to a multipart MIME collection - * makemime -j FILE1 [-o OUTFILE] FILE2 - * FILE1 must be a MIME collection that was previously created by the -m option. - * FILE2 must be a MIME section that was previously created by the -c option. - * The -j options adds the MIME section in FILE2 to the MIME collection in FILE1. - */ -int makemime_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; -int makemime_main(int argc UNUSED_PARAM, char **argv) -{ - llist_t *opt_headers = NULL, *l; - const char *opt_output; -#define boundary opt_output - - enum { - OPT_c = 1 << 0, // create (non-multipart) section - OPT_e = 1 << 1, // Content-Transfer-Encoding. Ignored. Assumed base64 - OPT_o = 1 << 2, // output to - OPT_C = 1 << 3, // charset - OPT_N = 1 << 4, // COMPAT - OPT_a = 1 << 5, // additional headers - //OPT_m = 1 << 6, // create mutipart section - //OPT_j = 1 << 7, // join section to multipart section - }; - - INIT_G(); - - // parse options - opt_complementary = "a::"; - opts = getopt32(argv, - "c:e:o:C:N:a", //:m:j:", - &G.content_type, NULL, &opt_output, &G.opt_charset, NULL, &opt_headers //, NULL, NULL - ); - //argc -= optind; - argv += optind; - - // respect -o output - if (opts & OPT_o) - freopen(opt_output, "w", stdout); - - // no files given on command line? -> use stdin - if (!*argv) - *--argv = (char *)"-"; - - // put additional headers - for (l = opt_headers; l; l = l->link) - puts(l->data); - - // make a random string -- it will delimit message parts - srand(monotonic_us()); - boundary = xasprintf("%u-%u-%u", - (unsigned)rand(), (unsigned)rand(), (unsigned)rand()); - - // put multipart header - printf( - "Mime-Version: 1.0\n" - "Content-Type: multipart/mixed; boundary=\"%s\"\n" - , boundary - ); - - // put attachments - while (*argv) { - printf( - "\n--%s\n" - "Content-Type: %s; charset=%s\n" - "Content-Disposition: inline; filename=\"%s\"\n" - "Content-Transfer-Encoding: base64\n" - , boundary - , G.content_type - , G.opt_charset - , bb_get_last_path_component_strip(*argv) - ); - encode_base64(*argv++, (const char *)stdin, ""); - } - - // put multipart footer - printf("\n--%s--\n" "\n", boundary); - - return EXIT_SUCCESS; -#undef boundary -} - -static const char *find_token(const char *const string_array[], const char *key, const char *defvalue) -{ - const char *r = NULL; - int i; - for (i = 0; string_array[i] != NULL; i++) { - if (strcasecmp(string_array[i], key) == 0) { - r = (char *)string_array[i+1]; - break; - } - } - return (r) ? r : defvalue; -} - -static const char *xfind_token(const char *const string_array[], const char *key) -{ - const char *r = find_token(string_array, key, NULL); - if (r) - return r; - bb_error_msg_and_die("header: %s", key); -} - -enum { - OPT_x = 1 << 0, - OPT_X = 1 << 1, -#if ENABLE_FEATURE_REFORMIME_COMPAT - OPT_d = 1 << 2, - OPT_e = 1 << 3, - OPT_i = 1 << 4, - OPT_s = 1 << 5, - OPT_r = 1 << 6, - OPT_c = 1 << 7, - OPT_m = 1 << 8, - OPT_h = 1 << 9, - OPT_o = 1 << 10, - OPT_O = 1 << 11, -#endif -}; - -static int parse(const char *boundary, char **argv) -{ - char *line, *s, *p; - const char *type; - int boundary_len = strlen(boundary); - const char *delims = " ;\"\t\r\n"; - const char *uniq; - int ntokens; - const char *tokens[32]; // 32 is enough - - // prepare unique string pattern - uniq = xasprintf("%%llu.%u.%s", (unsigned)getpid(), safe_gethostname()); - -//bb_info_msg("PARSE[%s]", uniq); - - while ((line = xmalloc_fgets_str(stdin, "\r\n\r\n")) != NULL) { - - // seek to start of MIME section - // N.B. to avoid false positives let us seek to the _last_ occurance - p = NULL; - s = line; - while ((s = strcasestr(s, "Content-Type:")) != NULL) - p = s++; - if (!p) - goto next; -//bb_info_msg("L[%s]", p); - - // split to tokens - // TODO: strip of comments which are of form: (comment-text) - ntokens = 0; - tokens[ntokens] = NULL; - for (s = strtok(p, delims); s; s = strtok(NULL, delims)) { - tokens[ntokens] = s; - if (ntokens < ARRAY_SIZE(tokens) - 1) - ntokens++; -//bb_info_msg("L[%d][%s]", ntokens, s); - } - tokens[ntokens] = NULL; -//bb_info_msg("N[%d]", ntokens); - - // analyse tokens - type = find_token(tokens, "Content-Type:", "text/plain"); -//bb_info_msg("T[%s]", type); - if (0 == strncasecmp(type, "multipart/", 10)) { - if (0 == strcasecmp(type+10, "mixed")) { - parse(xfind_token(tokens, "boundary="), argv); - } else - bb_error_msg_and_die("no support of content type '%s'", type); - } else { - pid_t pid = pid; - int rc; - FILE *fp; - // fetch charset - const char *charset = find_token(tokens, "charset=", CONFIG_FEATURE_MIME_CHARSET); - // fetch encoding - const char *encoding = find_token(tokens, "Content-Transfer-Encoding:", "7bit"); - // compose target filename - char *filename = (char *)find_token(tokens, "filename=", NULL); - if (!filename) - filename = xasprintf(uniq, monotonic_us()); - else - filename = bb_get_last_path_component_strip(xstrdup(filename)); - - // start external helper, if any - if (opts & OPT_X) { - int fd[2]; - xpipe(fd); - pid = vfork(); - if (0 == pid) { - // child reads from fd[0] - close(fd[1]); - xmove_fd(fd[0], STDIN_FILENO); - xsetenv("CONTENT_TYPE", type); - xsetenv("CHARSET", charset); - xsetenv("ENCODING", encoding); - xsetenv("FILENAME", filename); - BB_EXECVP_or_die(argv); - } - // parent dumps to fd[1] - close(fd[0]); - fp = xfdopen_for_write(fd[1]); - signal(SIGPIPE, SIG_IGN); // ignore EPIPE - // or create a file for dump - } else { - char *fname = xasprintf("%s%s", *argv, filename); - fp = xfopen_for_write(fname); - free(fname); - } - - // housekeeping - free(filename); - - // dump to fp - if (0 == strcasecmp(encoding, "base64")) { - read_base64(stdin, fp, '-'); - } else if (0 != strcasecmp(encoding, "7bit") - && 0 != strcasecmp(encoding, "8bit") - ) { - // quoted-printable, binary, user-defined are unsupported so far - bb_error_msg_and_die("no support of encoding '%s'", encoding); - } else { - // N.B. we have written redundant \n. so truncate the file - // The following weird 2-tacts reading technique is due to - // we have to not write extra \n at the end of the file - // In case of -x option we could truncate the resulting file as - // fseek(fp, -1, SEEK_END); - // if (ftruncate(fileno(fp), ftell(fp))) - // bb_perror_msg("ftruncate"); - // But in case of -X we have to be much more careful. There is - // no means to truncate what we already have sent to the helper. - p = xmalloc_fgets_str(stdin, "\r\n"); - while (p) { - s = xmalloc_fgets_str(stdin, "\r\n"); - if (s == NULL) - break; - if ('-' == s[0] - && '-' == s[1] - && 0 == strncmp(s+2, boundary, boundary_len) - ) { - break; - } - fputs(p, fp); - p = s; - } - -/* - while ((s = xmalloc_fgetline_str(stdin, "\r\n")) != NULL) { - if ('-' == s[0] && '-' == s[1] - && 0 == strncmp(s+2, boundary, boundary_len)) - break; - fprintf(fp, "%s\n", s); - } - // N.B. we have written redundant \n. so truncate the file - fseek(fp, -1, SEEK_END); - if (ftruncate(fileno(fp), ftell(fp))) - bb_perror_msg("ftruncate"); -*/ - } - fclose(fp); - - // finalize helper - if (opts & OPT_X) { - signal(SIGPIPE, SIG_DFL); - // exit if helper exited >0 - rc = (wait4pid(pid) & 0xff); - if (rc) - return rc+20; - } - - // check multipart finalized - if (s && '-' == s[2+boundary_len] && '-' == s[2+boundary_len+1]) { - free(line); - break; - } - } - next: - free(line); - } - -//bb_info_msg("ENDPARSE[%s]", boundary); - - return EXIT_SUCCESS; -} - -/* -Usage: reformime [options] - -d - parse a delivery status notification. - -e - extract contents of MIME section. - -x - extract MIME section to a file. - -X - pipe MIME section to a program. - -i - show MIME info. - -s n.n.n.n - specify MIME section. - -r - rewrite message, filling in missing MIME headers. - -r7 - also convert 8bit/raw encoding to quoted-printable, if possible. - -r8 - also convert quoted-printable encoding to 8bit, if possible. - -c charset - default charset for rewriting, -o, and -O. - -m [file] [file]... - create a MIME message digest. - -h "header" - decode RFC 2047-encoded header. - -o "header" - encode unstructured header using RFC 2047. - -O "header" - encode address list header using RFC 2047. -*/ - -int reformime_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; -int reformime_main(int argc UNUSED_PARAM, char **argv) -{ - const char *opt_prefix = ""; - - INIT_G(); - - // parse options - // N.B. only -x and -X are supported so far - opt_complementary = "x--X:X--x" IF_FEATURE_REFORMIME_COMPAT(":m::"); - opts = getopt32(argv, - "x:X" IF_FEATURE_REFORMIME_COMPAT("deis:r:c:m:h:o:O:"), - &opt_prefix - IF_FEATURE_REFORMIME_COMPAT(, NULL, NULL, &G.opt_charset, NULL, NULL, NULL, NULL) - ); - //argc -= optind; - argv += optind; - - return parse("", (opts & OPT_X) ? argv : (char **)&opt_prefix); -} diff --git a/mailutils/popmaildir.c b/mailutils/popmaildir.c index 6426579..c9d22aa 100644 --- a/mailutils/popmaildir.c +++ b/mailutils/popmaildir.c @@ -10,6 +10,8 @@ * Licensed under GPLv2, see file LICENSE in this source tree. */ +//kbuild:lib-$(CONFIG_POPMAILDIR) += popmaildir.o mail.o + //usage:#define popmaildir_trivial_usage //usage: "[OPTIONS] MAILDIR [CONN_HELPER ARGS]" //usage:#define popmaildir_full_usage "\n\n" diff --git a/mailutils/reformime.c b/mailutils/reformime.c new file mode 100644 index 0000000..aa5e3b1 --- /dev/null +++ b/mailutils/reformime.c @@ -0,0 +1,280 @@ +/* vi: set sw=4 ts=4: */ +/* + * makemime: create MIME-encoded message + * reformime: parse MIME-encoded message + * + * Copyright (C) 2008 by Vladimir Dronnikov + * + * Licensed under GPLv2, see file LICENSE in this source tree. + */ + +//kbuild:lib-$(CONFIG_REFORMIME) += reformime.o mail.o + +#include "libbb.h" +#include "mail.h" + +#if 0 +# define dbg_error_msg(...) bb_error_msg(__VA_ARGS__) +#else +# define dbg_error_msg(...) ((void)0) +#endif + +static const char *find_token(const char *const string_array[], const char *key, const char *defvalue) +{ + const char *r = NULL; + int i; + for (i = 0; string_array[i] != NULL; i++) { + if (strcasecmp(string_array[i], key) == 0) { + r = (char *)string_array[i+1]; + break; + } + } + return (r) ? r : defvalue; +} + +static const char *xfind_token(const char *const string_array[], const char *key) +{ + const char *r = find_token(string_array, key, NULL); + if (r) + return r; + bb_error_msg_and_die("not found: '%s'", key); +} + +enum { + OPT_x = 1 << 0, + OPT_X = 1 << 1, +#if ENABLE_FEATURE_REFORMIME_COMPAT + OPT_d = 1 << 2, + OPT_e = 1 << 3, + OPT_i = 1 << 4, + OPT_s = 1 << 5, + OPT_r = 1 << 6, + OPT_c = 1 << 7, + OPT_m = 1 << 8, + OPT_h = 1 << 9, + OPT_o = 1 << 10, + OPT_O = 1 << 11, +#endif +}; + +static int parse(const char *boundary, char **argv) +{ + int boundary_len = strlen(boundary); + char uniq[sizeof("%%llu.%u") + sizeof(int)*3]; + + dbg_error_msg("BOUNDARY[%s]", boundary); + + // prepare unique string pattern + sprintf(uniq, "%%llu.%u", (unsigned)getpid()); + dbg_error_msg("UNIQ[%s]", uniq); + + while (1) { + char *header; + const char *tokens[32]; /* 32 is enough */ + const char *type; + + /* Read the header (everything up to two \n) */ + { + unsigned header_idx = 0; + int last_ch = 0; + header = NULL; + while (1) { + int ch = fgetc(stdin); + if (ch == '\r') /* Support both line endings */ + continue; + if (ch == EOF) + break; + if (ch == '\n' && last_ch == ch) + break; + if (!(header_idx & 0xff)) + header = xrealloc(header, header_idx + 0x101); + header[header_idx++] = last_ch = ch; + } + if (!header) { + dbg_error_msg("EOF"); + break; + } + header[header_idx] = '\0'; + dbg_error_msg("H:'%s'", p); + } + + /* Split to tokens */ + { + char *s, *p; + unsigned ntokens; + const char *delims = ";=\" \t\n"; + + /* Skip to last Content-Type: */ + s = p = header; + while ((p = strchr(p, '\n')) != NULL) { + p++; + if (strncasecmp(p, "Content-Type:", sizeof("Content-Type:")-1) == 0) + s = p; + } + dbg_error_msg("L:'%s'", p); + ntokens = 0; + s = strtok(s, delims); + while (s) { + tokens[ntokens] = s; + if (ntokens < ARRAY_SIZE(tokens) - 1) + ntokens++; + dbg_error_msg("L[%d]='%s'", ntokens, s); + s = strtok(NULL, delims); + } + tokens[ntokens] = NULL; + dbg_error_msg("EMPTYLINE, ntokens:%d", ntokens); + if (ntokens == 0) + break; + } + + /* Is it multipart? */ + type = find_token(tokens, "Content-Type:", "text/plain"); + dbg_error_msg("TYPE:'%s'", type); + if (0 == strncasecmp(type, "multipart/", 10)) { + /* Yes, recurse */ + if (strcasecmp(type + 10, "mixed") != 0) + bb_error_msg_and_die("no support of content type '%s'", type); + parse(xfind_token(tokens, "boundary"), argv); + + } else { + /* No, process one non-multipart section */ + char *end; + pid_t pid = pid; + FILE *fp; + + const char *charset = find_token(tokens, "charset", CONFIG_FEATURE_MIME_CHARSET); + const char *encoding = find_token(tokens, "Content-Transfer-Encoding:", "7bit"); + + /* Compose target filename */ + char *filename = (char *)find_token(tokens, "filename", NULL); + if (!filename) + filename = xasprintf(uniq, monotonic_us()); + else + filename = bb_get_last_path_component_strip(xstrdup(filename)); + + if (opts & OPT_X) { + int fd[2]; + + /* start external helper */ + xpipe(fd); + pid = vfork(); + if (0 == pid) { + /* child reads from fd[0] */ + close(fd[1]); + xmove_fd(fd[0], STDIN_FILENO); + xsetenv("CONTENT_TYPE", type); + xsetenv("CHARSET", charset); + xsetenv("ENCODING", encoding); + xsetenv("FILENAME", filename); + BB_EXECVP_or_die(argv); + } + /* parent will write to fd[1] */ + close(fd[0]); + fp = xfdopen_for_write(fd[1]); + signal(SIGPIPE, SIG_IGN); + } else { + /* write to file */ + char *fname = xasprintf("%s%s", *argv, filename); + fp = xfopen_for_write(fname); + free(fname); + } + free(filename); + + /* write to fp */ + end = NULL; + if (0 == strcasecmp(encoding, "base64")) { + read_base64(stdin, fp, '-'); + } else + if (0 != strcasecmp(encoding, "7bit") + && 0 != strcasecmp(encoding, "8bit") + ) { + /* quoted-printable, binary, user-defined are unsupported so far */ + bb_error_msg_and_die("encoding '%s' not supported", encoding); + } else { + /* plain 7bit or 8bit */ + while ((end = xmalloc_fgets(stdin)) != NULL) { + if ('-' == end[0] + && '-' == end[1] + && strncmp(end + 2, boundary, boundary_len) == 0 + ) { + break; + } + fputs(end, fp); + } + } + fclose(fp); + + /* Wait for child */ + if (opts & OPT_X) { + int rc; + signal(SIGPIPE, SIG_DFL); + rc = (wait4pid(pid) & 0xff); + if (rc != 0) + return rc + 20; + } + + /* Multipart ended? */ + if (end && '-' == end[2 + boundary_len] && '-' == end[2 + boundary_len + 1]) { + dbg_error_msg("FINISHED MPART:'%s'", end); + break; + } + dbg_error_msg("FINISHED:'%s'", end); + free(end); + } /* end of "handle one non-multipart block" */ + + free(header); + } /* while (1) */ + + dbg_error_msg("ENDPARSE[%s]", boundary); + + return EXIT_SUCCESS; +} + +//usage:#define reformime_trivial_usage +//usage: "[OPTIONS]" +//usage:#define reformime_full_usage "\n\n" +//usage: "Parse MIME-encoded message on stdin\n" +//usage: "\nOptions:" +//usage: "\n -x PREFIX Extract content of MIME sections to files" +//usage: "\n -X PROG ARGS Filter content of MIME sections through PROG" +//usage: "\n Must be the last option" +//usage: "\n" +//usage: "\nOther options are silently ignored" + +/* +Usage: reformime [options] + -d - parse a delivery status notification. + -e - extract contents of MIME section. + -x - extract MIME section to a file. + -X - pipe MIME section to a program. + -i - show MIME info. + -s n.n.n.n - specify MIME section. + -r - rewrite message, filling in missing MIME headers. + -r7 - also convert 8bit/raw encoding to quoted-printable, if possible. + -r8 - also convert quoted-printable encoding to 8bit, if possible. + -c charset - default charset for rewriting, -o, and -O. + -m [file] [file]... - create a MIME message digest. + -h "header" - decode RFC 2047-encoded header. + -o "header" - encode unstructured header using RFC 2047. + -O "header" - encode address list header using RFC 2047. +*/ + +int reformime_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; +int reformime_main(int argc UNUSED_PARAM, char **argv) +{ + const char *opt_prefix = ""; + + INIT_G(); + + // parse options + // N.B. only -x and -X are supported so far + opt_complementary = "x--X:X--x" IF_FEATURE_REFORMIME_COMPAT(":m::"); + opts = getopt32(argv, + "x:X" IF_FEATURE_REFORMIME_COMPAT("deis:r:c:m:h:o:O:"), + &opt_prefix + IF_FEATURE_REFORMIME_COMPAT(, NULL, NULL, &G.opt_charset, NULL, NULL, NULL, NULL) + ); + argv += optind; + + return parse("", (opts & OPT_X) ? argv : (char **)&opt_prefix); +} diff --git a/mailutils/sendmail.c b/mailutils/sendmail.c index 8096288..e0aff20 100644 --- a/mailutils/sendmail.c +++ b/mailutils/sendmail.c @@ -7,6 +7,8 @@ * Licensed under GPLv2, see file LICENSE in this source tree. */ +//kbuild:lib-$(CONFIG_SENDMAIL) += sendmail.o mail.o + //usage:#define sendmail_trivial_usage //usage: "[OPTIONS] [RECIPIENT_EMAIL]..." //usage:#define sendmail_full_usage "\n\n" -- cgit v1.1