#include <errno.h>
#include <time.h>
+#include <iostream>
+
#include <gmime/gmime.h>
+#include <xapian.h>
+
+using namespace std;
+
#define ARRAY_SIZE(arr) (sizeof (arr) / sizeof (arr[0]))
+/* Xapian complains if we provide a term longer than this. */
+#define NOTMUCH_MAX_TERM 245
+
/* These prefix values are specifically chosen to be compatible
* with sup, (http://sup.rubyforge.org), written by
* William Morgan <wmorgan-sup@masanjin.net>, and released
{ "ref", "R" }
};
+/* Similarly, these value numbers are also chosen to be sup
+ * compatible. */
+
+typedef enum {
+ NOTMUCH_VALUE_MESSAGE_ID = 0,
+ NOTMUCH_VALUE_THREAD = 1,
+ NOTMUCH_VALUE_DATE = 2
+} notmuch_value_t;
+
static const char *
find_prefix (const char *name)
{
int TERM_COMBINED = 0;
static void
-print_term (const char *prefix_name, const char *value)
+add_term (Xapian::Document doc,
+ const char *prefix_name,
+ const char *value)
{
const char *prefix;
+ char *term;
if (value == NULL)
return;
prefix = find_prefix (prefix_name);
- if (TERM_COMBINED)
- printf ("\"%s%s\", ", prefix, value);
- else
- printf ("[\"%s\", \"%s\"], ", value, prefix);
+ term = g_strdup_printf ("%s%s", prefix, value);
+
+ if (strlen (term) <= NOTMUCH_MAX_TERM)
+ doc.add_term (term);
+
+ g_free (term);
+}
+
+static void
+gen_terms (Xapian::TermGenerator term_gen,
+ const char *prefix_name,
+ const char *text)
+{
+ const char *prefix;
+
+ if (text == NULL)
+ return;
+
+ prefix = find_prefix (prefix_name);
+
+ term_gen.index_text (text, 1, prefix);
}
static void
-add_address_name (InternetAddress *address, const char *prefix_name)
+gen_terms_address_name (Xapian::TermGenerator term_gen,
+ InternetAddress *address,
+ const char *prefix_name)
{
const char *name;
+ int own_name = 0;
name = internet_address_get_name (address);
+ /* In the absence of a name, we'll strip the part before the @
+ * from the address. */
+ if (! name) {
+ InternetAddressMailbox *mailbox = INTERNET_ADDRESS_MAILBOX (address);
+ const char *addr = internet_address_mailbox_get_addr (mailbox);
+ const char *at;
+
+ at = strchr (addr, '@');
+ if (at) {
+ name = strndup (addr, at - addr);
+ own_name = 1;
+ }
+ }
+
if (name)
- print_term (prefix_name, name);
+ gen_terms (term_gen, prefix_name, name);
+
+ if (own_name)
+ free ((void *) name);
}
static void
-add_address_names (InternetAddressList *addresses, const char *address_type)
+gen_terms_address_names (Xapian::TermGenerator term_gen,
+ InternetAddressList *addresses,
+ const char *address_type)
{
int i;
InternetAddress *address;
for (i = 0; i < internet_address_list_length (addresses); i++) {
address = internet_address_list_get_address (addresses, i);
- add_address_name (address, address_type);
- add_address_name (address, "name");
- add_address_name (address, "body");
+ gen_terms_address_name (term_gen, address, address_type);
+ gen_terms_address_name (term_gen, address, "name");
+ gen_terms_address_name (term_gen, address, "body");
}
}
static void
-add_address_addr (InternetAddress *address, const char *prefix_name)
+add_term_address_addr (Xapian::Document doc,
+ InternetAddress *address,
+ const char *prefix_name)
{
InternetAddressMailbox *mailbox = INTERNET_ADDRESS_MAILBOX (address);
const char *addr;
addr = internet_address_mailbox_get_addr (mailbox);
if (addr)
- print_term (prefix_name, addr);
+ add_term (doc, prefix_name, addr);
}
static void
-add_address_addrs (InternetAddressList *addresses, const char *address_type)
+add_terms_address_addrs (Xapian::Document doc,
+ InternetAddressList *addresses,
+ const char *address_type)
{
int i;
InternetAddress *address;
for (i = 0; i < internet_address_list_length (addresses); i++) {
address = internet_address_list_get_address (addresses, i);
- add_address_addr (address, address_type);
- add_address_addr (address, "email");
+ add_term_address_addr (doc, address, address_type);
+ add_term_address_addr (doc, address, "email");
}
}
-int
-main (int argc, char **argv)
+static const char *
+skip_re_in_subject (const char *subject)
+{
+ const char *s = subject;
+
+ while (*s) {
+ while (*s && isspace (*s))
+ s++;
+ if (strncasecmp (s, "re:", 3) == 0)
+ s += 3;
+ else
+ break;
+ }
+
+ return s;
+}
+
+static void
+find_messages_by_term (Xapian::Database db,
+ const char *prefix_name,
+ const char *value,
+ Xapian::PostingIterator *begin,
+ Xapian::PostingIterator *end)
+{
+ Xapian::PostingIterator i;
+ char *term;
+
+ term = g_strdup_printf ("%s%s", find_prefix (prefix_name), value);
+
+ *begin = db.postlist_begin (term);
+
+ if (end)
+ *end = db.postlist_end (term);
+
+ free (term);
+}
+
+Xapian::Document
+find_message_by_docid (Xapian::Database db, Xapian::docid docid)
+{
+ return db.get_document (docid);
+}
+
+Xapian::Document
+find_message_by_message_id (Xapian::Database db, const char *message_id)
+{
+ Xapian::PostingIterator i, end;
+
+ find_messages_by_term (db, "msgid", message_id, &i, &end);
+
+ if (i != end)
+ return find_message_by_docid (db, *i);
+ else
+ return Xapian::Document ();
+}
+
+static void
+insert_thread_id (GHashTable *thread_ids, Xapian::Document doc)
+{
+ string value_string;
+ const char *value;
+
+ value_string = doc.get_value (NOTMUCH_VALUE_THREAD);
+ value = value_string.c_str();
+ if (strlen (value))
+ g_hash_table_insert (thread_ids, strdup (value), NULL);
+}
+
+static char *
+find_thread_id (Xapian::Database db,
+ GPtrArray *parents,
+ const char *message_id)
+{
+ Xapian::PostingIterator child, children_end;
+ Xapian::Document doc;
+ GHashTable *thread_ids;
+ GList *keys, *l;
+ GString *result = NULL;
+ unsigned int i;
+ const char *parent_message_id;
+
+ thread_ids = g_hash_table_new (g_str_hash, g_str_equal);
+
+ find_messages_by_term (db, "ref", message_id, &child, &children_end);
+ for ( ; child != children_end; child++) {
+ doc = find_message_by_docid (db, *child);
+ insert_thread_id (thread_ids, doc);
+ }
+
+ for (i = 0; i < parents->len; i++) {
+ parent_message_id = (char *) g_ptr_array_index (parents, i);
+ doc = find_message_by_message_id (db, parent_message_id);
+ insert_thread_id (thread_ids, doc);
+ }
+
+ keys = g_hash_table_get_keys (thread_ids);
+ for (l = keys; l; l = l->next) {
+ char *id = (char *) l->data;
+ if (result == NULL) {
+ result = g_string_new (id);
+ } else {
+ g_string_append_printf (result, ",%s", id);
+ }
+ free (id);
+ }
+
+ if (result)
+ return g_string_free (result, FALSE);
+ else
+ return NULL;
+}
+
+/* Add a term for each message-id in the References header of the
+ * message. */
+static void
+parse_references (GPtrArray *array,
+ const char *refs_str)
+{
+ GMimeReferences *refs, *r;
+ const char *message_id;
+
+ if (refs_str == NULL)
+ return;
+
+ refs = g_mime_references_decode (refs_str);
+
+ for (r = refs; r; r = r->next) {
+ message_id = g_mime_references_get_message_id (r);
+ g_ptr_array_add (array, g_strdup (message_id));
+ }
+
+ g_mime_references_free (refs);
+}
+
+/* Given a string representing the body of a message, generate terms
+ * for it, (skipping quoted portions and signatures). */
+static void
+gen_terms_body_str (Xapian::TermGenerator term_gen,
+ char *body)
+{
+ char *line, *line_end, *next_line;
+
+ if (body == NULL)
+ return;
+
+ next_line = body;
+
+ while (1) {
+ line = next_line;
+ if (*line == '\0')
+ break;
+
+ next_line = strchr (line, '\n');
+ if (next_line == NULL) {
+ next_line = line + strlen (line);
+ }
+ line_end = next_line - 1;
+
+ /* Trim whitespace. */
+ while (*next_line && isspace (*next_line))
+ next_line++;
+
+ /* Skip lines that are quotes. */
+ if (*line == '>')
+ continue;
+
+ /* Also skip lines introducing a quote on the next line. */
+ while (line_end > line && isspace (*line_end))
+ line_end--;
+
+ if (*line_end == ':' && *next_line == '>')
+ continue;
+
+ /* Finally, bail as soon as we see a signature. */
+ /* XXX: Should only do this if "near" the end of the message. */
+ if (strncmp (line, "-- ", 3) == 0 ||
+ strncmp (line, "----------", 10) == 0 ||
+ strncmp (line, "__________", 10) == 0)
+ break;
+
+ *(line_end + 1) = '\0';
+ gen_terms (term_gen, "body", line);
+ }
+}
+
+
+/* Callback to generate terms for each mime part of a message. */
+static void
+gen_terms_part (GMimeObject *parent,
+ GMimeObject *part,
+ gpointer user_data)
{
+ Xapian::TermGenerator *term_gen = (Xapian::TermGenerator *) user_data;
+ GMimeStream *stream;
+ GMimeDataWrapper *wrapper;
+ GByteArray *byte_array;
+ char *body;
+
+ if (! GMIME_IS_PART (part)) {
+ fprintf (stderr, "Warning: Not indexing unknown mime part: %s.\n",
+ g_type_name (G_OBJECT_TYPE (part)));
+ return;
+ }
+
+ byte_array = g_byte_array_new ();
+
+ stream = g_mime_stream_mem_new_with_byte_array (byte_array);
+ g_mime_stream_mem_set_owner (GMIME_STREAM_MEM (stream), FALSE);
+ wrapper = g_mime_part_get_content_object (GMIME_PART (part));
+ g_mime_data_wrapper_write_to_stream (wrapper, stream);
+
+ g_object_unref (stream);
+
+ body = (char *) g_byte_array_free (byte_array, FALSE);
+
+ gen_terms_body_str (*term_gen, body);
+
+ free (body);
+}
+
+static void
+index_file (Xapian::WritableDatabase db,
+ Xapian::TermGenerator term_gen,
+ const char *filename)
+{
+ Xapian::Document doc;
+
GMimeStream *stream;
GMimeParser *parser;
GMimeMessage *message;
InternetAddressList *addresses;
+ GPtrArray *parents;
- const char *filename;
FILE *file;
- const char *value, *from;
+ const char *subject, *refs, *in_reply_to, *from;
+ const char *message_id, *thread_id;
time_t time;
struct tm gm_time_tm;
- char time_str[16]; /* YYYYMMDDHHMMSS + 1 for Y100k compatibility ;-) */
-
- if (argc < 2) {
- fprintf (stderr, "Usage: %s <mail-message>\n",
- argv[0]);
- exit (1);
- }
-
- filename = argv[1];
+ char date_str[16]; /* YYYYMMDDHHMMSS + 1 for Y100k compatibility ;-) */
+ unsigned int i;
file = fopen (filename, "r");
if (! file) {
exit (1);
}
- g_mime_init (0);
-
stream = g_mime_stream_file_new (file);
parser = g_mime_parser_new_with_stream (stream);
message = g_mime_parser_construct_message (parser);
- printf ("text is:\n[");
+ doc = Xapian::Document ();
+
+ doc.set_data (filename);
+
+ term_gen.set_stemmer (Xapian::Stem ("english"));
+
+ term_gen.set_document (doc);
+
from = g_mime_message_get_sender (message);
addresses = internet_address_list_parse_string (from);
- add_address_names (addresses, "from_name");
+ gen_terms_address_names (term_gen, addresses, "from_name");
+
+ addresses = g_mime_message_get_all_recipients (message);
+ gen_terms_address_names (term_gen, addresses, "to_name");
+
+ subject = g_mime_message_get_subject (message);
+ subject = skip_re_in_subject (subject);
+ gen_terms (term_gen, "subject", subject);
+ gen_terms (term_gen, "body", subject);
+
+ g_mime_message_foreach (message, gen_terms_part, &term_gen);
+
+ parents = g_ptr_array_new ();
+
+ refs = g_mime_object_get_header (GMIME_OBJECT (message), "references");
+ parse_references (parents, refs);
- add_address_names (g_mime_message_get_all_recipients (message),
- "to_name");
+ in_reply_to = g_mime_object_get_header (GMIME_OBJECT (message),
+ "in-reply-to");
+ parse_references (parents, in_reply_to);
- value = g_mime_message_get_subject (message);
- print_term ("subject", value);
- print_term ("body", value);
+ for (i = 0; i < parents->len; i++)
+ add_term (doc, "ref", (char *) g_ptr_array_index (parents, i));
- printf ("]\nterms is:\n[");
+ message_id = g_mime_message_get_message_id (message);
- TERM_COMBINED = 1;
+ thread_id = find_thread_id (db, parents, message_id);
+
+ for (i = 0; i < parents->len; i++)
+ g_free (g_ptr_array_index (parents, i));
+ g_ptr_array_free (parents, TRUE);
from = g_mime_message_get_sender (message);
addresses = internet_address_list_parse_string (from);
- add_address_addrs (addresses, "from_email");
+ add_terms_address_addrs (doc, addresses, "from_email");
- add_address_addrs (g_mime_message_get_all_recipients (message),
- "to_email");
+ add_terms_address_addrs (doc,
+ g_mime_message_get_all_recipients (message),
+ "to_email");
g_mime_message_get_date (message, &time, NULL);
gmtime_r (&time, &gm_time_tm);
- if (strftime (time_str, sizeof (time_str),
+ if (strftime (date_str, sizeof (date_str),
"%Y%m%d%H%M%S", &gm_time_tm) == 0) {
fprintf (stderr, "Internal error formatting time\n");
exit (1);
}
- print_term ("date", time_str);
+ add_term (doc, "date", date_str);
- print_term ("label", "inbox");
- print_term ("label", "unread");
- print_term ("type", "mail");
+ add_term (doc, "label", "inbox");
+ add_term (doc, "label", "unread");
+ add_term (doc, "type", "mail");
+ add_term (doc, "source_id", "1");
- value = g_mime_message_get_message_id (message);
- print_term ("msgid", value);
+ add_term (doc, "msgid", message_id);
+ doc.add_value (NOTMUCH_VALUE_MESSAGE_ID, message_id);
- print_term ("source_id", "1");
+ if (thread_id) {
+ add_term (doc, "thread", thread_id);
+ doc.add_value (NOTMUCH_VALUE_THREAD, thread_id);
+ free ((void *) thread_id);
+ } else {
+ /* If not referenced thread, use the message ID */
+ add_term (doc, "thread", message_id);
+ doc.add_value (NOTMUCH_VALUE_THREAD, message_id);
+ }
- value = g_mime_message_get_message_id (message);
- print_term ("thread", value);
+ doc.add_value (NOTMUCH_VALUE_DATE, Xapian::sortable_serialise (time));
- printf ("]\n");
+ db.add_document (doc);
g_object_unref (message);
g_object_unref (parser);
g_object_unref (stream);
+}
+
+static void
+usage (const char *argv0)
+{
+ fprintf (stderr, "Usage: %s <path-to-xapian-database>\n", argv0);
+ fprintf (stderr, "\n");
+ fprintf (stderr, "Messages to be indexed are read from stdnin as absolute filenames\n");
+ fprintf (stderr, "one file per line.");
+}
+
+int
+main (int argc, char **argv)
+{
+ const char *database_path;
+ char *filename;
+ GIOChannel *channel;
+ GIOStatus gio_status;
+ GError *error = NULL;
+
+ if (argc < 2) {
+ usage (argv[0]);
+ exit (1);
+ }
+
+ database_path = argv[1];
+
+ g_mime_init (0);
+
+ try {
+ Xapian::WritableDatabase db;
+ Xapian::TermGenerator term_gen;
+
+ db = Xapian::WritableDatabase (database_path,
+ Xapian::DB_CREATE_OR_OPEN);
+
+ term_gen = Xapian::TermGenerator ();
+
+ channel = g_io_channel_unix_new (fileno (stdin));
+
+ while (1) {
+ gio_status = g_io_channel_read_line (channel, &filename,
+ NULL, NULL, &error);
+ if (gio_status == G_IO_STATUS_EOF)
+ break;
+ if (gio_status != G_IO_STATUS_NORMAL) {
+ fprintf (stderr, "An error occurred reading from stdin: %s\n",
+ error->message);
+ exit (1);
+ }
+
+ g_strchomp (filename);
+ index_file (db, term_gen, filename);
+
+ g_free (filename);
+ }
+
+ } catch (const Xapian::Error &error) {
+ cerr << "A Xapian exception occurred: " << error.get_msg () << endl;
+ exit (1);
+ }
return 0;
}
projects / notmuch / blobdiff