X-Git-Url: https://git.notmuchmail.org/git?p=notmuch;a=blobdiff_plain;f=notmuch-reply.c;h=514bbc642654b8bcf3f352e6e9514ffe4ee7fb4b;hp=44e17661ea8a4cbc16c40727b61846e639e294bd;hb=5143e5e840b5e9d95611f57fdc9d4b27af6f0564;hpb=637f99d8f3f45867d0a856503f9f302333824c07 diff --git a/notmuch-reply.c b/notmuch-reply.c index 44e17661..514bbc64 100644 --- a/notmuch-reply.c +++ b/notmuch-reply.c @@ -22,68 +22,93 @@ #include "notmuch-client.h" #include "gmime-filter-reply.h" +#include "gmime-filter-headers.h" static void -reply_part_content (GMimeObject *part) +reply_part_content (GMimeObject *part); + +static const notmuch_show_format_t format_reply = { + "", + "", NULL, + "", NULL, "", + "", + NULL, + NULL, + NULL, + reply_part_content, + NULL, + "", + "", + "", "", + "" +}; + +static void +show_reply_headers (GMimeMessage *message) { GMimeStream *stream_stdout = NULL, *stream_filter = NULL; - GMimeDataWrapper *wrapper; stream_stdout = g_mime_stream_file_new (stdout); if (stream_stdout) { g_mime_stream_file_set_owner (GMIME_STREAM_FILE (stream_stdout), FALSE); stream_filter = g_mime_stream_filter_new(stream_stdout); - } - g_mime_stream_filter_add(GMIME_STREAM_FILTER(stream_filter), - g_mime_filter_reply_new(TRUE)); - wrapper = g_mime_part_get_content_object (GMIME_PART (part)); - if (wrapper && stream_filter) - g_mime_data_wrapper_write_to_stream (wrapper, stream_filter); - if (stream_filter) - g_object_unref(stream_filter); - if (stream_stdout) + if (stream_filter) { + g_mime_stream_filter_add(GMIME_STREAM_FILTER(stream_filter), + g_mime_filter_headers_new()); + g_mime_object_write_to_stream(GMIME_OBJECT(message), stream_filter); + g_object_unref(stream_filter); + } g_object_unref(stream_stdout); + } } static void -reply_part (GMimeObject *part, int *part_count) +reply_part_content (GMimeObject *part) { - GMimeContentDisposition *disposition; - GMimeContentType *content_type; + GMimeContentType *content_type = g_mime_object_get_content_type (GMIME_OBJECT (part)); + GMimeContentDisposition *disposition = g_mime_object_get_content_disposition (part); - (void) part_count; - disposition = g_mime_object_get_content_disposition (part); - if (disposition && - strcmp (disposition->disposition, GMIME_DISPOSITION_ATTACHMENT) == 0) + if (g_mime_content_type_is_type (content_type, "text", "*") && + !g_mime_content_type_is_type (content_type, "text", "html")) { - const char *filename = g_mime_part_get_filename (GMIME_PART (part)); - content_type = g_mime_object_get_content_type (GMIME_OBJECT (part)); - - if (g_mime_content_type_is_type (content_type, "text", "*") && - !g_mime_content_type_is_type (content_type, "text", "html")) + GMimeStream *stream_stdout = NULL, *stream_filter = NULL; + GMimeDataWrapper *wrapper; + const char *charset; + + charset = g_mime_object_get_content_type_parameter (part, "charset"); + stream_stdout = g_mime_stream_file_new (stdout); + if (stream_stdout) { + g_mime_stream_file_set_owner (GMIME_STREAM_FILE (stream_stdout), FALSE); + stream_filter = g_mime_stream_filter_new(stream_stdout); + if (charset) { + g_mime_stream_filter_add(GMIME_STREAM_FILTER(stream_filter), + g_mime_filter_charset_new(charset, "UTF-8")); + } + } + g_mime_stream_filter_add(GMIME_STREAM_FILTER(stream_filter), + g_mime_filter_reply_new(TRUE)); + wrapper = g_mime_part_get_content_object (GMIME_PART (part)); + if (wrapper && stream_filter) + g_mime_data_wrapper_write_to_stream (wrapper, stream_filter); + if (stream_filter) + g_object_unref(stream_filter); + if (stream_stdout) + g_object_unref(stream_stdout); + } + else + { + if (disposition && + strcmp (disposition->disposition, GMIME_DISPOSITION_ATTACHMENT) == 0) { - reply_part_content (part); + const char *filename = g_mime_part_get_filename (GMIME_PART (part)); + printf ("Attachment: %s (%s)\n", filename, + g_mime_content_type_to_string (content_type)); } else { - printf ("Attachment: %s (%s)\n", filename, + printf ("Non-text part: %s\n", g_mime_content_type_to_string (content_type)); } - - return; - } - - content_type = g_mime_object_get_content_type (GMIME_OBJECT (part)); - - if (g_mime_content_type_is_type (content_type, "text", "*") && - !g_mime_content_type_is_type (content_type, "text", "html")) - { - reply_part_content (part); - } - else - { - printf ("Non-text part: %s\n", - g_mime_content_type_to_string (content_type)); } } @@ -93,16 +118,16 @@ static int address_is_users (const char *address, notmuch_config_t *config) { const char *primary; - char **other; + const char **other; size_t i, other_len; primary = notmuch_config_get_user_primary_email (config); - if (strcmp (primary, address) == 0) + if (strcasecmp (primary, address) == 0) return 1; other = notmuch_config_get_user_other_email (config, &other_len); for (i = 0; i < other_len; i++) - if (strcmp (other[i], address) == 0) + if (strcasecmp (other[i], address) == 0) return 1; return 0; @@ -175,6 +200,9 @@ add_recipients_for_string (GMimeMessage *message, { InternetAddressList *list; + if (recipients == NULL) + return NULL; + list = internet_address_list_parse_string (recipients); if (list == NULL) return NULL; @@ -182,20 +210,55 @@ add_recipients_for_string (GMimeMessage *message, return add_recipients_for_address_list (message, config, type, list); } -int -notmuch_reply_command (void *ctx, int argc, char *argv[]) +/* Does the address in the Reply-To header of 'message' already appear + * in either the 'To' or 'Cc' header of the message? + */ +static int +reply_to_header_is_redundant (notmuch_message_t *message) +{ + const char *reply_to, *to, *cc, *addr; + InternetAddressList *list; + InternetAddress *address; + InternetAddressMailbox *mailbox; + + reply_to = notmuch_message_get_header (message, "reply-to"); + if (reply_to == NULL || *reply_to == '\0') + return 0; + + list = internet_address_list_parse_string (reply_to); + + if (internet_address_list_length (list) != 1) + return 0; + + address = internet_address_list_get_address (list, 0); + if (INTERNET_ADDRESS_IS_GROUP (address)) + return 0; + + mailbox = INTERNET_ADDRESS_MAILBOX (address); + addr = internet_address_mailbox_get_addr (mailbox); + + to = notmuch_message_get_header (message, "to"); + cc = notmuch_message_get_header (message, "cc"); + + if ((to && strstr (to, addr) != 0) || + (cc && strstr (cc, addr) != 0)) + { + return 1; + } + + return 0; +} + +/* Augments the recipients of reply from the headers of message. + * + * If any of the user's addresses were found in these headers, the first + * of these returned, otherwise NULL is returned. + */ +static const char * +add_recipients_from_message (GMimeMessage *reply, + notmuch_config_t *config, + notmuch_message_t *message) { - notmuch_config_t *config; - notmuch_database_t *notmuch; - notmuch_query_t *query; - GMimeMessage *reply; - char *query_string; - notmuch_messages_t *messages; - notmuch_message_t *message; - int ret = 0; - const char *subject, *recipients, *from_addr = NULL; - const char *in_reply_to, *orig_references, *references; - char *reply_headers; struct { const char *header; const char *fallback; @@ -206,37 +269,191 @@ notmuch_reply_command (void *ctx, int argc, char *argv[]) { "cc", NULL, GMIME_RECIPIENT_TYPE_CC }, { "bcc", NULL, GMIME_RECIPIENT_TYPE_BCC } }; + const char *from_addr = NULL; unsigned int i; - config = notmuch_config_open (ctx, NULL, NULL); - if (config == NULL) - return 1; + /* Some mailing lists munge the Reply-To header despite it being A Bad + * Thing, see http://www.unicom.com/pw/reply-to-harmful.html + * + * The munging is easy to detect, because it results in a + * redundant reply-to header, (with an address that already exists + * in either To or Cc). So in this case, we ignore the Reply-To + * field and use the From header. Thie ensures the original sender + * will get the reply even if not subscribed to the list. Note + * that the address in the Reply-To header will always appear in + * the reply. + */ + if (reply_to_header_is_redundant (message)) { + reply_to_map[0].header = "from"; + reply_to_map[0].fallback = NULL; + } - query_string = query_string_from_args (ctx, argc, argv); - if (query_string == NULL) { - fprintf (stderr, "Out of memory\n"); - return 1; + for (i = 0; i < ARRAY_SIZE (reply_to_map); i++) { + const char *addr, *recipients; + + recipients = notmuch_message_get_header (message, + reply_to_map[i].header); + if ((recipients == NULL || recipients[0] == '\0') && reply_to_map[i].fallback) + recipients = notmuch_message_get_header (message, + reply_to_map[i].fallback); + + addr = add_recipients_for_string (reply, config, + reply_to_map[i].recipient_type, + recipients); + if (from_addr == NULL) + from_addr = addr; } - if (*query_string == '\0') { - fprintf (stderr, "Error: notmuch reply requires at least one search term.\n"); - return 1; + return from_addr; +} + +static const char * +guess_from_received_header (notmuch_config_t *config, notmuch_message_t *message) +{ + const char *received,*primary,*by; + const char **other; + char *tohdr; + char *mta,*ptr,*token; + char *domain=NULL; + char *tld=NULL; + const char *delim=". \t"; + size_t i,j,other_len; + + const char *to_headers[] = {"Envelope-to", "X-Original-To"}; + + primary = notmuch_config_get_user_primary_email (config); + other = notmuch_config_get_user_other_email (config, &other_len); + + /* sadly, there is no standard way to find out to which email + * address a mail was delivered - what is in the headers depends + * on the MTAs used along the way. So we are trying a number of + * heuristics which hopefully will answer this question. + + * We only got here if none of the users email addresses are in + * the To: or Cc: header. From here we try the following in order: + * 1) check for an Envelope-to: header + * 2) check for an X-Original-To: header + * 3) check for a (for ) clause in Received: headers + * 4) check for the domain part of known email addresses in the + * 'by' part of Received headers + * If none of these work, we give up and return NULL + */ + for (i = 0; i < sizeof(to_headers)/sizeof(*to_headers); i++) { + tohdr = xstrdup(notmuch_message_get_header (message, to_headers[i])); + if (tohdr && *tohdr) { + /* tohdr is potentialy a list of email addresses, so here we + * check if one of the email addresses is a substring of tohdr + */ + if (strcasestr(tohdr, primary)) { + free(tohdr); + return primary; + } + for (j = 0; j < other_len; j++) + if (strcasestr (tohdr, other[j])) { + free(tohdr); + return other[j]; + } + free(tohdr); + } } - notmuch = notmuch_database_open (notmuch_config_get_database_path (config), - NOTMUCH_DATABASE_MODE_READ_ONLY); - if (notmuch == NULL) - return 1; + /* We get the concatenated Received: headers and search from the + * front (last Received: header added) and try to extract from + * them indications to which email address this message was + * delivered. + * The Received: header is special in our get_header function + * and is always concated. + */ + received = notmuch_message_get_header (message, "received"); + if (received == NULL) + return NULL; - query = notmuch_query_create (notmuch, query_string); - if (query == NULL) { - fprintf (stderr, "Out of memory\n"); - return 1; + /* First we look for a " for " in the received + * header + */ + ptr = strstr (received, " for "); + if (ptr) { + /* the text following is potentialy a list of email addresses, + * so again we check if one of the email addresses is a + * substring of ptr + */ + if (strcasestr(ptr, primary)) { + return primary; + } + for (i = 0; i < other_len; i++) + if (strcasestr (ptr, other[i])) { + return other[i]; + } } + /* Finally, we parse all the " by MTA ..." headers to guess the + * email address that this was originally delivered to. + * We extract just the MTA here by removing leading whitespace and + * assuming that the MTA name ends at the next whitespace. + * We test for *(by+4) to be non-'\0' to make sure there's + * something there at all - and then assume that the first + * whitespace delimited token that follows is the receiving + * system in this step of the receive chain + */ + by = received; + while((by = strstr (by, " by ")) != NULL) { + by += 4; + if (*by == '\0') + break; + mta = xstrdup (by); + token = strtok(mta," \t"); + if (token == NULL) + break; + /* Now extract the last two components of the MTA host name + * as domain and tld. + */ + while ((ptr = strsep (&token, delim)) != NULL) { + if (*ptr == '\0') + continue; + domain = tld; + tld = ptr; + } + + if (domain) { + /* Recombine domain and tld and look for it among the configured + * email addresses. + * This time we have a known domain name and nothing else - so + * the test is the other way around: we check if this is a + * substring of one of the email addresses. + */ + *(tld-1) = '.'; + + if (strcasestr(primary, domain)) { + free(mta); + return primary; + } + for (i = 0; i < other_len; i++) + if (strcasestr (other[i],domain)) { + free(mta); + return other[i]; + } + } + free (mta); + } + + return NULL; +} - for (messages = notmuch_query_search_messages (query, 0, -1); - notmuch_messages_has_more (messages); - notmuch_messages_advance (messages)) +static int +notmuch_reply_format_default(void *ctx, + notmuch_config_t *config, + notmuch_query_t *query, + notmuch_show_params_t *params) +{ + GMimeMessage *reply; + notmuch_messages_t *messages; + notmuch_message_t *message; + const char *subject, *from_addr = NULL; + const char *in_reply_to, *orig_references, *references; + const notmuch_show_format_t *format = &format_reply; + + for (messages = notmuch_query_search_messages (query); + notmuch_messages_valid (messages); + notmuch_messages_move_to_next (messages)) { message = notmuch_messages_get (messages); @@ -248,26 +465,16 @@ notmuch_reply_command (void *ctx, int argc, char *argv[]) } subject = notmuch_message_get_header (message, "subject"); + if (subject) { + if (strncasecmp (subject, "Re:", 3)) + subject = talloc_asprintf (ctx, "Re: %s", subject); + g_mime_message_set_subject (reply, subject); + } - if (strncasecmp (subject, "Re:", 3)) - subject = talloc_asprintf (ctx, "Re: %s", subject); - g_mime_message_set_subject (reply, subject); - - for (i = 0; i < ARRAY_SIZE (reply_to_map); i++) { - const char *addr; + from_addr = add_recipients_from_message (reply, config, message); - recipients = notmuch_message_get_header (message, - reply_to_map[i].header); - if ((recipients == NULL || recipients[0] == '\0') && reply_to_map[i].fallback) - recipients = notmuch_message_get_header (message, - reply_to_map[i].fallback); - - addr = add_recipients_for_string (reply, config, - reply_to_map[i].recipient_type, - recipients); - if (from_addr == NULL) - from_addr = addr; - } + if (from_addr == NULL) + from_addr = guess_from_received_header (config, message); if (from_addr == NULL) from_addr = notmuch_config_get_user_primary_email (config); @@ -278,9 +485,6 @@ notmuch_reply_command (void *ctx, int argc, char *argv[]) g_mime_object_set_header (GMIME_OBJECT (reply), "From", from_addr); - g_mime_object_set_header (GMIME_OBJECT (reply), "Bcc", - notmuch_config_get_user_primary_email (config)); - in_reply_to = talloc_asprintf (ctx, "<%s>", notmuch_message_get_message_id (message)); @@ -295,9 +499,7 @@ notmuch_reply_command (void *ctx, int argc, char *argv[]) g_mime_object_set_header (GMIME_OBJECT (reply), "References", references); - reply_headers = g_mime_object_to_string (GMIME_OBJECT (reply)); - printf ("%s", reply_headers); - free (reply_headers); + show_reply_headers (reply); g_object_unref (G_OBJECT (reply)); reply = NULL; @@ -306,13 +508,156 @@ notmuch_reply_command (void *ctx, int argc, char *argv[]) notmuch_message_get_header (message, "date"), notmuch_message_get_header (message, "from")); - show_message_body (notmuch_message_get_filename (message), reply_part); + show_message_body (notmuch_message_get_filename (message), + format, params); + + notmuch_message_destroy (message); + } + return 0; +} + +/* This format is currently tuned for a git send-email --notmuch hook */ +static int +notmuch_reply_format_headers_only(void *ctx, + notmuch_config_t *config, + notmuch_query_t *query, + unused (notmuch_show_params_t *params)) +{ + GMimeMessage *reply; + notmuch_messages_t *messages; + notmuch_message_t *message; + const char *in_reply_to, *orig_references, *references; + char *reply_headers; + + for (messages = notmuch_query_search_messages (query); + notmuch_messages_valid (messages); + notmuch_messages_move_to_next (messages)) + { + message = notmuch_messages_get (messages); + + /* The 0 means we do not want headers in a "pretty" order. */ + reply = g_mime_message_new (0); + if (reply == NULL) { + fprintf (stderr, "Out of memory\n"); + return 1; + } + + in_reply_to = talloc_asprintf (ctx, "<%s>", + notmuch_message_get_message_id (message)); + + g_mime_object_set_header (GMIME_OBJECT (reply), + "In-Reply-To", in_reply_to); + + + orig_references = notmuch_message_get_header (message, "references"); + + /* We print In-Reply-To followed by References because git format-patch treats them + * specially. Git does not interpret the other headers specially + */ + references = talloc_asprintf (ctx, "%s%s%s", + orig_references ? orig_references : "", + orig_references ? " " : "", + in_reply_to); + g_mime_object_set_header (GMIME_OBJECT (reply), + "References", references); + + (void)add_recipients_from_message (reply, config, message); + + reply_headers = g_mime_object_to_string (GMIME_OBJECT (reply)); + printf ("%s", reply_headers); + free (reply_headers); + + g_object_unref (G_OBJECT (reply)); + reply = NULL; notmuch_message_destroy (message); } + return 0; +} + +int +notmuch_reply_command (void *ctx, int argc, char *argv[]) +{ + notmuch_config_t *config; + notmuch_database_t *notmuch; + notmuch_query_t *query; + char *opt, *query_string; + int i, ret = 0; + int (*reply_format_func)(void *ctx, notmuch_config_t *config, notmuch_query_t *query, notmuch_show_params_t *params); + notmuch_show_params_t params; + + reply_format_func = notmuch_reply_format_default; + params.part = -1; + params.cryptoctx = NULL; + + for (i = 0; i < argc && argv[i][0] == '-'; i++) { + if (strcmp (argv[i], "--") == 0) { + i++; + break; + } + if (STRNCMP_LITERAL (argv[i], "--format=") == 0) { + opt = argv[i] + sizeof ("--format=") - 1; + if (strcmp (opt, "default") == 0) { + reply_format_func = notmuch_reply_format_default; + } else if (strcmp (opt, "headers-only") == 0) { + reply_format_func = notmuch_reply_format_headers_only; + } else { + fprintf (stderr, "Invalid value for --format: %s\n", opt); + return 1; + } + } else if ((STRNCMP_LITERAL (argv[i], "--decrypt") == 0)) { + if (params.cryptoctx == NULL) { + GMimeSession* session = g_object_new(g_mime_session_get_type(), NULL); + if (NULL == (params.cryptoctx = g_mime_gpg_context_new(session, "gpg"))) + fprintf (stderr, "Failed to construct gpg context.\n"); + else + g_mime_gpg_context_set_always_trust((GMimeGpgContext*)params.cryptoctx, FALSE); + g_object_unref (session); + session = NULL; + } + } else { + fprintf (stderr, "Unrecognized option: %s\n", argv[i]); + return 1; + } + } + + argc -= i; + argv += i; + + config = notmuch_config_open (ctx, NULL, NULL); + if (config == NULL) + return 1; + + query_string = query_string_from_args (ctx, argc, argv); + if (query_string == NULL) { + fprintf (stderr, "Out of memory\n"); + return 1; + } + + if (*query_string == '\0') { + fprintf (stderr, "Error: notmuch reply requires at least one search term.\n"); + return 1; + } + + notmuch = notmuch_database_open (notmuch_config_get_database_path (config), + NOTMUCH_DATABASE_MODE_READ_ONLY); + if (notmuch == NULL) + return 1; + + query = notmuch_query_create (notmuch, query_string); + if (query == NULL) { + fprintf (stderr, "Out of memory\n"); + return 1; + } + + if (reply_format_func (ctx, config, query, ¶ms) != 0) + return 1; notmuch_query_destroy (query); notmuch_database_close (notmuch); + if (params.cryptoctx) + g_object_unref(params.cryptoctx); + return ret; }