vcs.maemo.org Git - hermes/blob - package/src/contact-update.c

   1 /**
   2  * contact-update                          (c) Andrew Flegg 2009
   3  * ~~~~~~~~~~~~~~                          Released under the Artistic Licence.
   4  *
   5  * A very quick and dirty program to modify an EDS contact's photo and
   6  * birthday. This is necessary because evolution-python only exposes the two
   7  * structs GBoxed, which cannot be created or manipulated in Python (AFAICT).
   8  *
   9  * Error handling: limited
  10  * Syntax: contact-update <name> --photo <mime-type> <file>
  11  *         contact-update <name> --birthday <year> <month> <day>
  12  */
  13 #include <libebook/e-book.h>
  14 #include <libebook/e-contact.h>
  15 #include <glib.h>
  16 #include <stdio.h>
  17 #include <stdlib.h>
  18 #include <sys/stat.h>
  19 #include <sys/types.h>
  20 #include <string.h>
  21
  22 // gcc -o contact-update -std=c99 `pkg-config --cflags --libs libebook-1.2 glib-2.0` contact-update.c
  23
  24 GError *error = NULL;
  25
  26
  27 /**
  28  * Simple error handling.
  29  *
  30  * @param result Result of an expression. If false, <var>message</var> will be shown
  31  *               and the process terminated.
  32  * @param message Message to display if <var>result</var> is false.
  33  */
  34 void* try(gboolean result, char* message) {
  35         if (!result) {
  36                 fprintf(stderr, "Error %s: %s\n", message, error ? error->message : "");
  37                 exit(EXIT_FAILURE);
  38         }
  39 }
  40
  41
  42 /**
  43  * Load a photo from disk into an EContactPhoto record.
  44  *
  45  * @param mime_type MIME type to store in the photo record.
  46  * @param filename Filename on disk to load.
  47  */
  48 EContactPhoto load_photo(char* mime_type, char* filename) {
  49         struct stat stbuf;
  50         stat(filename, &stbuf);
  51         char* photo_data = malloc(stbuf.st_size);
  52         try(photo_data != NULL, "allocating memory for photo");
  53         FILE *file = fopen(filename, "r");
  54         try(file != NULL, "opening file");
  55         int read;
  56         char* current = photo_data;
  57         while ((read = fread(current, 1, stbuf.st_size, file)) > 0) {
  58           current += read;
  59         }
  60         fclose(file);
  61
  62         EContactPhoto photo;
  63         photo.type = E_CONTACT_PHOTO_TYPE_INLINED;
  64         photo.data.inlined.mime_type = mime_type;
  65         photo.data.inlined.length = stbuf.st_size;
  66         photo.data.inlined.data = photo_data;
  67
  68         return photo;
  69 }
  70
  71
  72 /**
  73  * Create a date record corresponding to the given strings.
  74  *
  75  * @param year Character representation of the year.
  76  * @param month Character representation of the month.
  77  * @param day Character representation of the day.
  78  */
  79 EContactDate read_date(char* year, char* month, char* day) {
  80         EContactDate date;
  81         date.year  = atoi(year);
  82         date.month = atoi(month);
  83         date.day   = atoi(day);
  84         return date;
  85 }
  86
  87
  88 /**
  89  * Main entry point: do the work of updating matched records.
  90  */
  91 int main(int argc, char* argv[]) {
  92         g_type_init();
  93
  94         try(argc > 2, "\nsyntax: <name> --photo <mime-type> <file>\n        <name> --birthday <year> <month> <day>");
  95
  96         // -- Data structures we'll use later...
  97         //
  98         gboolean is_photo;
  99         gboolean is_birthday;
 100         EContactPhoto photo;
 101         EContactDate  birthday;
 102         if (strcmp(argv[2], "--photo") == 0) {
 103           try(argc == 5, "syntax: <name> --photo <mime-type> <file>");
 104           photo = load_photo(argv[3], argv[4]);
 105           is_photo = 1;
 106
 107         } else if (strcmp(argv[2], "--birthday") == 0) {
 108           try(argc == 6, "syntax: <name> --birthday <year> <month> <day>");
 109           birthday = read_date(argv[3], argv[4], argv[5]);
 110           is_birthday = 1;
 111
 112         } else {
 113           try(1 == 0, "\nsyntax: <name> --photo <mime-type> <file>\n        <name> --birthday <year> <month> <day>");
 114         }
 115
 116         // -- Open the address book...
 117         //
 118         EBook *book = e_book_new_system_addressbook(&error);
 119         try(book != NULL, "finding address book");
 120         try(e_book_open(book, FALSE, &error), "opening address book");
 121         try(e_book_is_writable(book), "book is writable");
 122
 123         // -- Find the list of contacts...
 124         //
 125         GList *contacts = NULL;
 126         EBookQuery *query = e_book_query_field_test(E_CONTACT_FULL_NAME, E_BOOK_QUERY_IS, argv[1]);
 127         try(e_book_get_contacts(book, query, &contacts, &error), "listing contacts");
 128         e_book_query_unref(query);
 129
 130         // -- Update the contacts...
 131         //
 132         int i = 0;
 133         for (GList* node = g_list_first(contacts); node != NULL; node = g_list_next(node)) {
 134           EContact *contact = E_CONTACT(node->data);
 135           if (is_photo)    e_contact_set(contact, E_CONTACT_PHOTO, &photo);
 136           if (is_birthday) e_contact_set(contact, E_CONTACT_BIRTH_DATE, &birthday);
 137
 138           if (is_photo || is_birthday) {
 139             try(e_book_commit_contact(book, contact, &error), "committing contact");
 140             i++;
 141           }
 142         }
 143         printf("Modified %d records\n", i);
 144
 145         return EXIT_SUCCESS;
 146 }
 147