trunk/Src/wptKeyEdit.cpp

/* wptKeyEdit.cpp - GPG key edit abstraction
 *      Copyright (C) 2005 Timo Schulz
 *      Copyright (C) 2005 g10 Code GmbH
 *
 * This file is part of WinPT.
 *
 * WinPT is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License 
 * as published by the Free Software Foundation; either version 2 
 * of the License, or (at your option) any later version.
 *  
 * WinPT 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
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License 
 * along with WinPT; if not, write to the Free Software Foundation, 
 * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 
 */

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#include <windows.h>
#include <time.h>

#include "gpgme.h"
#include "wptCommonCtl.h"
#include "wptContext.h"
#include "wptKeyEdit.h"
#include "wptTypes.h"
#include "wptW32API.h"
#include "wptGPG.h"
#include "wptErrors.h"


/* Parse the colon status information of @line and store
   the information in @rev.
   Return value: 0 on success. */
static gpgme_error_t
rev_key_colon_handler (gpg_desig_rev_t *rev, char *line)
{
    char *p, *pend;
    gpg_desig_rev_t r, t;
    int field = 0;

    if (!line || strlen (line) < 3)
        return gpg_error (GPG_ERR_EOF);
    if (strncmp (line, "rvk", 3))
        return 0; /* skip this line. */

    log_debug ("rev_key: line=%s\r\n", line);

    r = (gpg_desig_rev_t)calloc (1, sizeof *r);
    if (!r)
        return gpg_error (GPG_ERR_ENOMEM);
    if (!*rev)
        *rev = r;
    else {
        for (t=*rev; t->next; t=t->next)
            ;
        t->next = r;
    }

    p = strdup (line);
    if (!p)
        return gpg_error (GPG_ERR_ENOMEM);

    for (;;) {
        field++;
        pend = strsep (&p, ":");
        if (pend == NULL)
            break;
        switch (field) {
        case  4: r->pubkey_algo = (gpgme_pubkey_algo_t)atol (pend); break;
        case 10: strncpy (r->fpr, pend, 40); r->fpr[40] = 0; break;
        }       
    }
    if (p)
        free (p);
    return 0;
}


/* Parse the colon data output of edit key from @line and
   store the information in the @inf context.
   Return value: 0 on success. */
static gpgme_error_t
uid_inf_colon_handler (gpg_uid_info_t *inf, char *line)
{
    gpg_uid_info_t i, t;
    char *p, *pend;
    int field = 0, len = 0;

    if (!line || strlen (line) < 3 || strncmp (line, "uid", 3))
        return gpg_error (GPG_ERR_EOF);

    i = (gpg_uid_info_t)calloc (1, sizeof *i);
    if (!i)
        return gpg_error (GPG_ERR_ENOMEM);
    if (!*inf)
        *inf = i;
    else {
        for (t=*inf; t->next; t=t->next)
            ;
        t->next = i;
    }

    p = strdup (line);
    if (!p)
        return gpg_error (GPG_ERR_ENOMEM);;
    for (;;) {
        field++;
        pend = strsep (&p, ":");
        if (pend == NULL)
            break;

        switch (field) {
        case 2: /* trust info */
            break;

        case 10: /* user ID */
            i->name = (char *)calloc (1, strlen (pend)+1);
            if (!i->name)
                return gpg_error (GPG_ERR_ENOMEM);;
            gpg_decode_c_string (pend, &i->name, strlen (pend)+ 1);
            if (strchr (pend, '<') != NULL && strchr (pend, '>') != NULL) {
                int pos = strchr (i->name, '<')- i->name + 1;
                int end = strchr (i->name, '>') - i->name;
                i->email = (char*) calloc (1, end-pos+2);
                if (!i->email)
                    return gpg_error (GPG_ERR_ENOMEM);;
                memcpy (i->email, i->name+pos, (end-pos));
            }
            break;

        case 13: /* preferences */
            if (strstr (pend, "mdc")) {
                len = strlen (pend) - 4; /* ,mdc */
                if (strstr (pend, "no-ks-modify")) {
                    i->flags.no_ks_modify = 1;
                    len -= 13; /* ,no-ks-modify */
                }
                i->prefs = (char*)calloc (1, len+1);
                if (!i->prefs)
                    return gpg_error (GPG_ERR_ENOMEM);
                memcpy (i->prefs, pend, len);
                i->prefs[len] = '\0';
                i->flags.mdc = 1;
            }
            else {
                i->prefs = strdup (pend);
                if (!i->prefs)
                    return gpg_error (GPG_ERR_ENOMEM);
                i->flags.mdc = 0;               
            }
            break;

        case 14: /* index/flags */
            i->index = atol (pend);
            if (strchr (pend, 'r'))
                i->flags.revoked = 1;
            if (strchr (pend, 'p'))
                i->flags.primary = 1;
            break;
        }
    }
    if (p)
        free (p);
    return 0;
}


/* Release the context in @inf. */
void
gpg_uid_info_release (gpg_uid_info_t list)
{
    gpg_uid_info_t i;
   
    while (list) {
        i = list->next;
        if (list->name) {
            if (list->name)          
                free (list->name);
            list->name = NULL;
        }
        if (list->prefs) {
            if (list->prefs)
                free (list->prefs);
            list->prefs = NULL;
        }       
        free (list);
        list = i;
    }
}


/* Release the context in @rev. */
void
gpg_desig_rev_release (gpg_desig_rev_t rev)
{
    gpg_desig_rev_t r;

    while (rev) {
        r = rev->next;
        free (rev);
        rev = r;
    }
}


static gpgme_error_t
list2_handler (void *opaque, gpgme_status_code_t code, const char *key, int fd)
{
    DWORD n;
    const char *s;

    if (!strcmp (key, "keyedit.prompt")) {
        s = "quit\n";
        WriteFile ((HANDLE)fd, s, strlen (s), &n, NULL);
    }    
    return 0;
}

/* Dummy handler to get the colon data and then quit. */
static gpgme_error_t
list_handler (void *opaque, gpgme_status_code_t code, const char *key, int fd)
{
    static int step=0;
    const char *s="";
    DWORD n;

    if (!strcmp (key, "keyedit.prompt") && step == 0) {
        step = 1;
        s = "list\n";
        WriteFile ((HANDLE)fd, s, strlen (s), &n, NULL);
    }
    else if (!strcmp (key, "keyedit.prompt") && step == 1) {
        step = 0;
        s = "quit\n";
        WriteFile ((HANDLE)fd, s, strlen (s), &n, NULL);
    }

    return 0;
}


/* Return all designated revokers for this key. If no revoker
   was set, @r_rev is NULL.
   Return value: 0 on success. */
gpgme_error_t
GpgKeyEdit::getDesignatedRevoker (gpg_desig_rev_t *r_rev)
{
    gpgme_data_t out=NULL;
    gpg_desig_rev_t rev = NULL;
    gpgme_error_t err;
    char buf[256];

    if (!this->key)
        return gpg_error (GPG_ERR_INV_OBJ);

    err = gpgme_data_new (&out);
    if (err)
        goto leave;

    err = gpgme_op_edit (ctx, key, list2_handler, NULL, out);
    if (err)
        goto leave;
    
    gpgme_data_rewind (out);
    while (gpg_data_readline (out, buf, sizeof (buf)-1) > 0)
        rev_key_colon_handler (&rev, buf);
    *r_rev = rev;

leave:
    if (out)
        gpgme_data_release (out);
    if (err) {
        gpg_desig_rev_release (rev);
        *r_rev = NULL;
    }
    return err;
}

/* Retrieve all user ID information of the key set via setKey 
   in @r_inf. The result also contains the user ID number which 
   is needed to securely delete the user-ID. */
gpgme_error_t
GpgKeyEdit::getUseridInfo (gpg_uid_info_t *r_uinf)
{
    gpgme_data_t out = NULL;    
    gpgme_error_t err;
    gpg_uid_info_t inf = NULL;
    char buf[256];

    if (!this->key)
        return gpg_error (GPG_ERR_INV_OBJ);

    err = gpgme_data_new (&out);
    if (err)
        goto leave;

    err = gpgme_op_edit (ctx, key, list_handler, NULL, out);
    if (err)
        goto leave;
    
    gpgme_data_rewind (out);
    while (gpg_data_readline (out, buf, sizeof (buf) -1) > 0)
        uid_inf_colon_handler (&inf, buf);

    *r_uinf = inf;

leave:
    if (out)
        gpgme_data_release (out);
    if (err) {
        gpg_uid_info_release (inf);
        *r_uinf = NULL;
    }
    return err;
}


/* Construct an object with the given key in @key. */
GpgKeyEdit::GpgKeyEdit (gpgme_key_t _key)
{
    this->key = _key;
    pass = NULL;
    type = 0;
    name = NULL;
    cmt = NULL;
    email = NULL;
    cnt = 0;
    cmd_sent = 0;
    resval = 0;
    gpgme_new (&ctx); /* FIXME */
}

/* Construct an object and fetch the key with the keyid @keyid. */
GpgKeyEdit::GpgKeyEdit (const char *_keyid)
{
    get_pubkey (_keyid, &this->key);
    pass = NULL;
    type = 0;
    name = NULL;
    cmt = NULL;
    email = NULL;
    cmd_sent = 0;
    resval = 0;
    gpgme_new (&ctx); /* FIXME */
}

/* Delete the given object. */
GpgKeyEdit::~GpgKeyEdit (void)
{
    free_if_alloc (name);
    free_if_alloc (cmt);
    free_if_alloc (email);
    gpgme_release (ctx);
}


/* Reset the state of the object. */
void
GpgKeyEdit::reset (void)
{
    cmd_sent = 0;
}


/* Return true if type has a non-zero value. */
bool
GpgKeyEdit::isValid (void)
{
    return type != 0;
}


/* Return the GPGME key. */
gpgme_key_t
GpgKeyEdit::getKey (void)
{
    return key;
}


/* Set the GPGME callback to @cb. The hook value can be
   given in @cb_value. */
void 
GpgKeyEdit::setCallback (gpgme_progress_cb_t cb, void *cb_value)
{
    gpgme_set_progress_cb (ctx, cb, cb_value);
}

/* Set the passphrase to @pass. */
void 
GpgKeyEdit::setPassphrase (const char *_pass)
{
    this->pass = _pass;
}

/* Set the current key to @key. */
void 
GpgKeyEdit::setKey (gpgme_key_t _key)
{
    this->key = _key;
}

/* Set the keyid of the destination key to @keyid. */
void
GpgKeyEdit::setKeyID (const char *_keyid)
{
    if (!_keyid)
        return;
    get_pubkey (_keyid, &this->key);
}


/* Set the local user for the operation to @locusr. */
void 
GpgKeyEdit::setLocalUser (gpgme_key_t locusr)
{
    gpgme_signers_add (ctx, locusr);
}

/* Set the result of the operation to @val. */
void 
GpgKeyEdit::setResult (int val)
{
    resval |= val;
}


/* Return the result of the operation. */
int
GpgKeyEdit::getResult(void)
{
    return resval;
}


int
GpgKeyEdit::getType (void)
{
    return type;
}

/* Sign the key stored in the object with the 
   signing mode @mode and the signature class @sig_class.
   Return value: 0 on success. */
gpgme_error_t
GpgKeyEdit::signKey (int mode, int _sig_class, const char *_exp_date)
{
    if (!this->key || !this->pass)
        return gpg_error (GPG_ERR_INV_OBJ);

    type = mode;
    this->exp_date = _exp_date;
    this->sig_class = _sig_class;
    return gpg_editkey (this->ctx, this->key, this);
}


/* Set the ownertrust of the key stored in the object
   to the trust value @trust.
   Return value: 0 on success. */
gpgme_error_t
GpgKeyEdit::setTrust (gpgme_validity_t trust)
{
    if (!this->key)
        return gpg_error (GPG_ERR_INV_OBJ);

    type = GPG_EDITKEY_TRUST;
    this->trust_id = (int)trust;
    return gpg_editkey (this->ctx, this->key, this);
}

/* Add a user ID to the given key with the @name as the
   name, @cmt as the comment (or NULL) and @email as the email.
   Return value: 0 on success. */
gpgme_error_t
GpgKeyEdit::addUserid (const char *_name, const char *_cmt, const char *_email)
{
    if (!this->key || !this->pass)
        return gpg_error (GPG_ERR_INV_OBJ);

    type = GPG_EDITKEY_ADDUID;
    free_if_alloc (this->name);
    this->name = m_strdup (_name);
    free_if_alloc (this->cmt);
    this->cmt = NULL;
    if (cmt != NULL)
        this->cmt = m_strdup (_cmt);    
    free_if_alloc (this->email);
    this->email = m_strdup (_email);
    if (!this->email || !this->name)
        BUG (NULL);
    return gpg_editkey (this->ctx, this->key, this);
}

/* Delete the user-ID with the index @uid_index of the given key.
   Return value: 0 on success. */
gpgme_error_t
GpgKeyEdit::delUserid (int _uid_index)
{
    if (!this->key)
        return gpg_error (GPG_ERR_INV_OBJ);

    type = GPG_EDITKEY_DELUID;
    this->uid_index = _uid_index;
    return gpg_editkey (this->ctx, this->key, this);
}

/* Delete the subkey with the index @key_index.
   Return value: 0 on success. */
gpgme_error_t
GpgKeyEdit::delKey (int _key_index)
{
    if (!this->key)
        return gpg_error (GPG_ERR_INV_OBJ);

    type = GPG_EDITKEY_DELKEY;
    this->key_index = _key_index;
    return gpg_editkey (this->ctx, this->key, this);
}

/* Add a new subkey to the given key.
   The new key will have @pubkey_algo as the algorithm
   and a size of @pubkey_size bits. If valid > 0, the
   key expires in @valid days. 
   Return value: 0 on success. */
gpgme_error_t
GpgKeyEdit::addSubkey (gpgme_pubkey_algo_t _pubkey_algo, 
                       unsigned int _pubkey_size, long _valid)
{
    if (!this->key || !this->pass)
        return gpg_error (GPG_ERR_INV_OBJ);

    type = GPG_EDITKEY_ADDKEY;
    this->pubkey_algo = _pubkey_algo;
    this->pubkey_size = _pubkey_size;
    this->valid = _valid;
    return gpg_editkey (this->ctx, this->key, this);
}

/* Change the passphrase of the given key to @new_pass.
   If allow_empty != 0, it is allowed to provide an empty passphrase.
   Return value: 0 on success. */
gpgme_error_t
GpgKeyEdit::changePassphrase (const char *_new_pass, int allow_empty)
{
    if (!this->key || !this->pass)
        return gpg_error (GPG_ERR_INV_OBJ);
    
    type = GPG_EDITKEY_PASSWD;
    this->new_pass = _new_pass;
    this->flags = allow_empty? 1 : 0;
    return gpg_editkey (this->ctx, this->key, this);
}

/* Set the primary user-ID of the given key to user-ID with
   the index @uid_index.
   Return value: 0 on success. */
gpgme_error_t
GpgKeyEdit::setPrimaryUserid (int _uid_index)
{
    if (!this->key || !this->pass)
        return gpg_error (GPG_ERR_INV_OBJ);

    type = GPG_EDITKEY_PRIMARY;
    this->uid_index = _uid_index;
    return gpg_editkey (this->ctx, this->key, this);
}

/* Set the expire date of the subkey with the index @key_index.
   @exp_timestamp is used to calculate the days the key is valid.
   if @exp_days is true, exp_timestamp is already converted to days.
   Return value: 0 on success. */
gpgme_error_t
GpgKeyEdit::setKeyExpireDate (int _key_index, 
                              long exp_timestamp, bool exp_days)
{
    if (!this->key || !this->pass)
        return gpg_error (GPG_ERR_INV_OBJ);
    if (!exp_days && exp_timestamp > 0 && exp_timestamp < time (NULL))
        return gpg_error (GPG_ERR_INV_ARG);
    
    type = GPG_EDITKEY_EXPIRE;
    if (!exp_days && exp_timestamp > 0) {
        valid = exp_timestamp - time (NULL);
        valid /= 86400;
    }
    else
        valid = exp_timestamp;
    this->key_index = _key_index;
    return gpg_editkey (this->ctx, this->key, this);
}

/* Revoke the userid given by the index @uid_index.
   Return value: 0 on success. */
gpgme_error_t
GpgKeyEdit::revokeUserid (int _uid_index)
{
    if (!this->key || !this->pass)
        return gpg_error (GPG_ERR_INV_OBJ);

    type = GPG_EDITKEY_REVUID;
    this->uid_index = _uid_index;
    return gpg_editkey (this->ctx, this->key, this);
}


/* Revoke a signature on the user-ID with the index @uid_index
   and the signature index @sig_index.
   Return value: 0 on success. */
gpgme_error_t
GpgKeyEdit::revokeSignature (int _uid_index, int _sig_index)
{
    if (!this->key || !this->pass)
        return gpg_error (GPG_ERR_INV_OBJ);

    type = GPG_EDITKEY_REVSIG;
    this->uid_index = _uid_index;
    this->sig_index = _sig_index;
    return gpg_editkey (this->ctx, this->key, this);
}


/* Revoke the subkey with the index @key_index. Optionally
   a reason can be provided in @reason with a text to describe
   more details in @cmt.
   Return value: 0 on success. */
gpgme_error_t
GpgKeyEdit::revokeSubkey (int _key_index, int _reason, const char *_cmt)
{
    if (!this->key || !this->pass)
        return gpg_error (GPG_ERR_INV_OBJ);

    type = GPG_EDITKEY_REVKEY;
    this->key_index = _key_index;
    this->reason = _reason;
    free_if_alloc (this->cmt);
    this->cmt = NULL;
    if (_cmt)
        this->cmt = m_strdup (_cmt);
    return gpg_editkey (this->ctx, this->key, this);
}


/* Add a designated revoker to the key. @uid stores
   the user-ID of the key who is allowed to be a
   designated revoker.
   Return value: 0 on success. */
gpgme_error_t
GpgKeyEdit::addDesignatedRevoker (const char *uid)
{
    if (!this->key || !this->pass)
        return gpg_error (GPG_ERR_INV_OBJ);

    type = GPG_EDITKEY_ADDREV;
    free_if_alloc (this->name);
    this->name = m_strdup (uid);
    return gpg_editkey (this->ctx, this->key, this);
}

/* Add a photo-ID to the key. The JPG image is given
   in the file with the name @jpg_file.
   Return value: 0 on success. */
gpgme_error_t
GpgKeyEdit::addPhotoid (const char *jpg_file)
{
    if (!this->key || !this->pass)
        return gpg_error (GPG_ERR_INV_OBJ);

    type = GPG_EDITKEY_ADDPHOTO;
    this->url = jpg_file;
    return gpg_editkey (this->ctx, this->key, this);
}

/* Enable the given key. */
gpgme_error_t
GpgKeyEdit::enable (void)
{
    if (!this->key)
        return gpg_error (GPG_ERR_INV_OBJ);
    type = GPG_EDITKEY_ENABLE;
    return gpg_editkey (this->ctx, this->key, this);
}

/* Disable the given key. */
gpgme_error_t
GpgKeyEdit::disable (void)
{
    if (!this->key)
        return gpg_error (GPG_ERR_INV_OBJ);
    type = GPG_EDITKEY_DISABLE;
    return gpg_editkey (this->ctx, this->key, this);
}


/* Update the user-ID preferences of the user-ID with the
   index @uid_index to the prefs given in @new_prefs.
   Return value: 0 on success. */
gpgme_error_t
GpgKeyEdit::setUseridPreferences (int _uid_index, const char *new_prefs)
{
    if (!this->key || !this->pass)
        return gpg_error (GPG_ERR_INV_OBJ);
    return 0;
}


/* Delete a signature from the user-ID with the index @uid_index.
   The index of the signature is given in @sig_index.
   Return value: 0 on success. */
gpgme_error_t
GpgKeyEdit::delUseridSignature (int _uid_index, int _sig_index)
{
    if (!this->key)
        return gpg_error (GPG_ERR_INV_OBJ);
    type = GPG_EDITKEY_DELSIG;
    this->uid_index = _uid_index;
    this->sig_index = _sig_index;
    return gpg_editkey (this->ctx, this->key, this);
}

/* Set the preferred keyserver for the given key to @url.
   Return value: 0 on success. */
gpgme_error_t
GpgKeyEdit::setPreferredKeyserver (int _uid_index, const char *_url)
{
    if (!this->key || !this->pass)
        return gpg_error (GPG_ERR_INV_OBJ);
    if (!url)
        return gpg_error (GPG_ERR_INV_ARG);
    type = GPG_EDITKEY_KEYSERV;
    this->url = _url;
    this->uid_index = _uid_index;
    return gpg_editkey (this->ctx, this->key, this);
}
1	/* wptKeyEdit.cpp - GPG key edit abstraction
2	* Copyright (C) 2005 Timo Schulz
3	* Copyright (C) 2005 g10 Code GmbH
4	*
5	* This file is part of WinPT.
6	*
7	* WinPT is free software; you can redistribute it and/or
8	* modify it under the terms of the GNU General Public License
9	* as published by the Free Software Foundation; either version 2
10	* of the License, or (at your option) any later version.
11	*
12	* WinPT is distributed in the hope that it will be useful,
13	* but WITHOUT ANY WARRANTY; without even the implied warranty of
14	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15	* General Public License for more details.
16	*
17	* You should have received a copy of the GNU General Public License
18	* along with WinPT; if not, write to the Free Software Foundation,
19	* Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20	*/
21
22	#ifdef HAVE_CONFIG_H
23	#include <config.h>
24	#endif
25
26	#include <windows.h>
27	#include <time.h>
28
29	#include "gpgme.h"
30	#include "wptCommonCtl.h"
31	#include "wptContext.h"
32	#include "wptKeyEdit.h"
33	#include "wptTypes.h"
34	#include "wptW32API.h"
35	#include "wptGPG.h"
36	#include "wptErrors.h"
37
38
39	/* Parse the colon status information of @line and store
40	the information in @rev.
41	Return value: 0 on success. */
42	static gpgme_error_t
43	rev_key_colon_handler (gpg_desig_rev_t rev, char line)
44	{
45	char p, pend;
46	gpg_desig_rev_t r, t;
47	int field = 0;
48
49	if (!line \|\| strlen (line) < 3)
50	return gpg_error (GPG_ERR_EOF);
51	if (strncmp (line, "rvk", 3))
52	return 0; /* skip this line. */
53
54	log_debug ("rev_key: line=%s\r\n", line);
55
56	r = (gpg_desig_rev_t)calloc (1, sizeof *r);
57	if (!r)
58	return gpg_error (GPG_ERR_ENOMEM);
59	if (!*rev)
60	*rev = r;
61	else {
62	for (t=*rev; t->next; t=t->next)
63	;
64	t->next = r;
65	}
66
67	p = strdup (line);
68	if (!p)
69	return gpg_error (GPG_ERR_ENOMEM);
70
71	for (;;) {
72	field++;
73	pend = strsep (&p, ":");
74	if (pend == NULL)
75	break;
76	switch (field) {
77	case 4: r->pubkey_algo = (gpgme_pubkey_algo_t)atol (pend); break;
78	case 10: strncpy (r->fpr, pend, 40); r->fpr[40] = 0; break;
79	}
80	}
81	if (p)
82	free (p);
83	return 0;
84	}
85
86
87	/* Parse the colon data output of edit key from @line and
88	store the information in the @inf context.
89	Return value: 0 on success. */
90	static gpgme_error_t
91	uid_inf_colon_handler (gpg_uid_info_t inf, char line)
92	{
93	gpg_uid_info_t i, t;
94	char p, pend;
95	int field = 0, len = 0;
96
97	if (!line \|\| strlen (line) < 3 \|\| strncmp (line, "uid", 3))
98	return gpg_error (GPG_ERR_EOF);
99
100	i = (gpg_uid_info_t)calloc (1, sizeof *i);
101	if (!i)
102	return gpg_error (GPG_ERR_ENOMEM);
103	if (!*inf)
104	*inf = i;
105	else {
106	for (t=*inf; t->next; t=t->next)
107	;
108	t->next = i;
109	}
110
111	p = strdup (line);
112	if (!p)
113	return gpg_error (GPG_ERR_ENOMEM);;
114	for (;;) {
115	field++;
116	pend = strsep (&p, ":");
117	if (pend == NULL)
118	break;
119
120	switch (field) {
121	case 2: /* trust info */
122	break;
123
124	case 10: /* user ID */
125	i->name = (char *)calloc (1, strlen (pend)+1);
126	if (!i->name)
127	return gpg_error (GPG_ERR_ENOMEM);;
128	gpg_decode_c_string (pend, &i->name, strlen (pend)+ 1);
129	if (strchr (pend, '<') != NULL && strchr (pend, '>') != NULL) {
130	int pos = strchr (i->name, '<')- i->name + 1;
131	int end = strchr (i->name, '>') - i->name;
132	i->email = (char*) calloc (1, end-pos+2);
133	if (!i->email)
134	return gpg_error (GPG_ERR_ENOMEM);;
135	memcpy (i->email, i->name+pos, (end-pos));
136	}
137	break;
138
139	case 13: /* preferences */
140	if (strstr (pend, "mdc")) {
141	len = strlen (pend) - 4; /* ,mdc */
142	if (strstr (pend, "no-ks-modify")) {
143	i->flags.no_ks_modify = 1;
144	len -= 13; /* ,no-ks-modify */
145	}
146	i->prefs = (char*)calloc (1, len+1);
147	if (!i->prefs)
148	return gpg_error (GPG_ERR_ENOMEM);
149	memcpy (i->prefs, pend, len);
150	i->prefs[len] = '\0';
151	i->flags.mdc = 1;
152	}
153	else {
154	i->prefs = strdup (pend);
155	if (!i->prefs)
156	return gpg_error (GPG_ERR_ENOMEM);
157	i->flags.mdc = 0;
158	}
159	break;
160
161	case 14: /* index/flags */
162	i->index = atol (pend);
163	if (strchr (pend, 'r'))
164	i->flags.revoked = 1;
165	if (strchr (pend, 'p'))
166	i->flags.primary = 1;
167	break;
168	}
169	}
170	if (p)
171	free (p);
172	return 0;
173	}
174
175
176	/* Release the context in @inf. */
177	void
178	gpg_uid_info_release (gpg_uid_info_t list)
179	{
180	gpg_uid_info_t i;
181
182	while (list) {
183	i = list->next;
184	if (list->name) {
185	if (list->name)
186	free (list->name);
187	list->name = NULL;
188	}
189	if (list->prefs) {
190	if (list->prefs)
191	free (list->prefs);
192	list->prefs = NULL;
193	}
194	free (list);
195	list = i;
196	}
197	}
198
199
200	/* Release the context in @rev. */
201	void
202	gpg_desig_rev_release (gpg_desig_rev_t rev)
203	{
204	gpg_desig_rev_t r;
205
206	while (rev) {
207	r = rev->next;
208	free (rev);
209	rev = r;
210	}
211	}
212
213
214	static gpgme_error_t
215	list2_handler (void opaque, gpgme_status_code_t code, const char key, int fd)
216	{
217	DWORD n;
218	const char *s;
219
220	if (!strcmp (key, "keyedit.prompt")) {
221	s = "quit\n";
222	WriteFile ((HANDLE)fd, s, strlen (s), &n, NULL);
223	}
224	return 0;
225	}
226
227	/* Dummy handler to get the colon data and then quit. */
228	static gpgme_error_t
229	list_handler (void opaque, gpgme_status_code_t code, const char key, int fd)
230	{
231	static int step=0;
232	const char *s="";
233	DWORD n;
234
235	if (!strcmp (key, "keyedit.prompt") && step == 0) {
236	step = 1;
237	s = "list\n";
238	WriteFile ((HANDLE)fd, s, strlen (s), &n, NULL);
239	}
240	else if (!strcmp (key, "keyedit.prompt") && step == 1) {
241	step = 0;
242	s = "quit\n";
243	WriteFile ((HANDLE)fd, s, strlen (s), &n, NULL);
244	}
245
246	return 0;
247	}
248
249
250	/* Return all designated revokers for this key. If no revoker
251	was set, @r_rev is NULL.
252	Return value: 0 on success. */
253	gpgme_error_t
254	GpgKeyEdit::getDesignatedRevoker (gpg_desig_rev_t *r_rev)
255	{
256	gpgme_data_t out=NULL;
257	gpg_desig_rev_t rev = NULL;
258	gpgme_error_t err;
259	char buf[256];
260
261	if (!this->key)
262	return gpg_error (GPG_ERR_INV_OBJ);
263
264	err = gpgme_data_new (&out);
265	if (err)
266	goto leave;
267
268	err = gpgme_op_edit (ctx, key, list2_handler, NULL, out);
269	if (err)
270	goto leave;
271
272	gpgme_data_rewind (out);
273	while (gpg_data_readline (out, buf, sizeof (buf)-1) > 0)
274	rev_key_colon_handler (&rev, buf);
275	*r_rev = rev;
276
277	leave:
278	if (out)
279	gpgme_data_release (out);
280	if (err) {
281	gpg_desig_rev_release (rev);
282	*r_rev = NULL;
283	}
284	return err;
285	}
286
287	/* Retrieve all user ID information of the key set via setKey
288	in @r_inf. The result also contains the user ID number which
289	is needed to securely delete the user-ID. */
290	gpgme_error_t
291	GpgKeyEdit::getUseridInfo (gpg_uid_info_t *r_uinf)
292	{
293	gpgme_data_t out = NULL;
294	gpgme_error_t err;
295	gpg_uid_info_t inf = NULL;
296	char buf[256];
297
298	if (!this->key)
299	return gpg_error (GPG_ERR_INV_OBJ);
300
301	err = gpgme_data_new (&out);
302	if (err)
303	goto leave;
304
305	err = gpgme_op_edit (ctx, key, list_handler, NULL, out);
306	if (err)
307	goto leave;
308
309	gpgme_data_rewind (out);
310	while (gpg_data_readline (out, buf, sizeof (buf) -1) > 0)
311	uid_inf_colon_handler (&inf, buf);
312
313	*r_uinf = inf;
314
315	leave:
316	if (out)
317	gpgme_data_release (out);
318	if (err) {
319	gpg_uid_info_release (inf);
320	*r_uinf = NULL;
321	}
322	return err;
323	}
324
325
326	/* Construct an object with the given key in @key. */
327	GpgKeyEdit::GpgKeyEdit (gpgme_key_t _key)
328	{
329	this->key = _key;
330	pass = NULL;
331	type = 0;
332	name = NULL;
333	cmt = NULL;
334	email = NULL;
335	cnt = 0;
336	cmd_sent = 0;
337	resval = 0;
338	gpgme_new (&ctx); /* FIXME */
339	}
340
341	/* Construct an object and fetch the key with the keyid @keyid. */
342	GpgKeyEdit::GpgKeyEdit (const char *_keyid)
343	{
344	get_pubkey (_keyid, &this->key);
345	pass = NULL;
346	type = 0;
347	name = NULL;
348	cmt = NULL;
349	email = NULL;
350	cmd_sent = 0;
351	resval = 0;
352	gpgme_new (&ctx); /* FIXME */
353	}
354
355	/* Delete the given object. */
356	GpgKeyEdit::~GpgKeyEdit (void)
357	{
358	free_if_alloc (name);
359	free_if_alloc (cmt);
360	free_if_alloc (email);
361	gpgme_release (ctx);
362	}
363
364
365	/* Reset the state of the object. */
366	void
367	GpgKeyEdit::reset (void)
368	{
369	cmd_sent = 0;
370	}
371
372
373	/* Return true if type has a non-zero value. */
374	bool
375	GpgKeyEdit::isValid (void)
376	{
377	return type != 0;
378	}
379
380
381	/* Return the GPGME key. */
382	gpgme_key_t
383	GpgKeyEdit::getKey (void)
384	{
385	return key;
386	}
387
388
389	/* Set the GPGME callback to @cb. The hook value can be
390	given in @cb_value. */
391	void
392	GpgKeyEdit::setCallback (gpgme_progress_cb_t cb, void *cb_value)
393	{
394	gpgme_set_progress_cb (ctx, cb, cb_value);
395	}
396
397	/* Set the passphrase to @pass. */
398	void
399	GpgKeyEdit::setPassphrase (const char *_pass)
400	{
401	this->pass = _pass;
402	}
403
404	/* Set the current key to @key. */
405	void
406	GpgKeyEdit::setKey (gpgme_key_t _key)
407	{
408	this->key = _key;
409	}
410
411	/* Set the keyid of the destination key to @keyid. */
412	void
413	GpgKeyEdit::setKeyID (const char *_keyid)
414	{
415	if (!_keyid)
416	return;
417	get_pubkey (_keyid, &this->key);
418	}
419
420
421	/* Set the local user for the operation to @locusr. */
422	void
423	GpgKeyEdit::setLocalUser (gpgme_key_t locusr)
424	{
425	gpgme_signers_add (ctx, locusr);
426	}
427
428	/* Set the result of the operation to @val. */
429	void
430	GpgKeyEdit::setResult (int val)
431	{
432	resval \|= val;
433	}
434
435
436	/* Return the result of the operation. */
437	int
438	GpgKeyEdit::getResult(void)
439	{
440	return resval;
441	}
442
443
444
445	int
446	GpgKeyEdit::getType (void)
447	{
448	return type;
449	}
450
451	/* Sign the key stored in the object with the
452	signing mode @mode and the signature class @sig_class.
453	Return value: 0 on success. */
454	gpgme_error_t
455	GpgKeyEdit::signKey (int mode, int _sig_class, const char *_exp_date)
456	{
457	if (!this->key \|\| !this->pass)
458	return gpg_error (GPG_ERR_INV_OBJ);
459
460	type = mode;
461	this->exp_date = _exp_date;
462	this->sig_class = _sig_class;
463	return gpg_editkey (this->ctx, this->key, this);
464	}
465
466
467	/* Set the ownertrust of the key stored in the object
468	to the trust value @trust.
469	Return value: 0 on success. */
470	gpgme_error_t
471	GpgKeyEdit::setTrust (gpgme_validity_t trust)
472	{
473	if (!this->key)
474	return gpg_error (GPG_ERR_INV_OBJ);
475
476	type = GPG_EDITKEY_TRUST;
477	this->trust_id = (int)trust;
478	return gpg_editkey (this->ctx, this->key, this);
479	}
480
481	/* Add a user ID to the given key with the @name as the
482	name, @cmt as the comment (or NULL) and @email as the email.
483	Return value: 0 on success. */
484	gpgme_error_t
485	GpgKeyEdit::addUserid (const char _name, const char _cmt, const char *_email)
486	{
487	if (!this->key \|\| !this->pass)
488	return gpg_error (GPG_ERR_INV_OBJ);
489
490	type = GPG_EDITKEY_ADDUID;
491	free_if_alloc (this->name);
492	this->name = m_strdup (_name);
493	free_if_alloc (this->cmt);
494	this->cmt = NULL;
495	if (cmt != NULL)
496	this->cmt = m_strdup (_cmt);
497	free_if_alloc (this->email);
498	this->email = m_strdup (_email);
499	if (!this->email \|\| !this->name)
500	BUG (NULL);
501	return gpg_editkey (this->ctx, this->key, this);
502	}
503
504	/* Delete the user-ID with the index @uid_index of the given key.
505	Return value: 0 on success. */
506	gpgme_error_t
507	GpgKeyEdit::delUserid (int _uid_index)
508	{
509	if (!this->key)
510	return gpg_error (GPG_ERR_INV_OBJ);
511
512	type = GPG_EDITKEY_DELUID;
513	this->uid_index = _uid_index;
514	return gpg_editkey (this->ctx, this->key, this);
515	}
516
517	/* Delete the subkey with the index @key_index.
518	Return value: 0 on success. */
519	gpgme_error_t
520	GpgKeyEdit::delKey (int _key_index)
521	{
522	if (!this->key)
523	return gpg_error (GPG_ERR_INV_OBJ);
524
525	type = GPG_EDITKEY_DELKEY;
526	this->key_index = _key_index;
527	return gpg_editkey (this->ctx, this->key, this);
528	}
529
530	/* Add a new subkey to the given key.
531	The new key will have @pubkey_algo as the algorithm
532	and a size of @pubkey_size bits. If valid > 0, the
533	key expires in @valid days.
534	Return value: 0 on success. */
535	gpgme_error_t
536	GpgKeyEdit::addSubkey (gpgme_pubkey_algo_t _pubkey_algo,
537	unsigned int _pubkey_size, long _valid)
538	{
539	if (!this->key \|\| !this->pass)
540	return gpg_error (GPG_ERR_INV_OBJ);
541
542	type = GPG_EDITKEY_ADDKEY;
543	this->pubkey_algo = _pubkey_algo;
544	this->pubkey_size = _pubkey_size;
545	this->valid = _valid;
546	return gpg_editkey (this->ctx, this->key, this);
547	}
548
549	/* Change the passphrase of the given key to @new_pass.
550	If allow_empty != 0, it is allowed to provide an empty passphrase.
551	Return value: 0 on success. */
552	gpgme_error_t
553	GpgKeyEdit::changePassphrase (const char *_new_pass, int allow_empty)
554	{
555	if (!this->key \|\| !this->pass)
556	return gpg_error (GPG_ERR_INV_OBJ);
557
558	type = GPG_EDITKEY_PASSWD;
559	this->new_pass = _new_pass;
560	this->flags = allow_empty? 1 : 0;
561	return gpg_editkey (this->ctx, this->key, this);
562	}
563
564	/* Set the primary user-ID of the given key to user-ID with
565	the index @uid_index.
566	Return value: 0 on success. */
567	gpgme_error_t
568	GpgKeyEdit::setPrimaryUserid (int _uid_index)
569	{
570	if (!this->key \|\| !this->pass)
571	return gpg_error (GPG_ERR_INV_OBJ);
572
573	type = GPG_EDITKEY_PRIMARY;
574	this->uid_index = _uid_index;
575	return gpg_editkey (this->ctx, this->key, this);
576	}
577
578	/* Set the expire date of the subkey with the index @key_index.
579	@exp_timestamp is used to calculate the days the key is valid.
580	if @exp_days is true, exp_timestamp is already converted to days.
581	Return value: 0 on success. */
582	gpgme_error_t
583	GpgKeyEdit::setKeyExpireDate (int _key_index,
584	long exp_timestamp, bool exp_days)
585	{
586	if (!this->key \|\| !this->pass)
587	return gpg_error (GPG_ERR_INV_OBJ);
588	if (!exp_days && exp_timestamp > 0 && exp_timestamp < time (NULL))
589	return gpg_error (GPG_ERR_INV_ARG);
590
591	type = GPG_EDITKEY_EXPIRE;
592	if (!exp_days && exp_timestamp > 0) {
593	valid = exp_timestamp - time (NULL);
594	valid /= 86400;
595	}
596	else
597	valid = exp_timestamp;
598	this->key_index = _key_index;
599	return gpg_editkey (this->ctx, this->key, this);
600	}
601
602	/* Revoke the userid given by the index @uid_index.
603	Return value: 0 on success. */
604	gpgme_error_t
605	GpgKeyEdit::revokeUserid (int _uid_index)
606	{
607	if (!this->key \|\| !this->pass)
608	return gpg_error (GPG_ERR_INV_OBJ);
609
610	type = GPG_EDITKEY_REVUID;
611	this->uid_index = _uid_index;
612	return gpg_editkey (this->ctx, this->key, this);
613	}
614
615
616	/* Revoke a signature on the user-ID with the index @uid_index
617	and the signature index @sig_index.
618	Return value: 0 on success. */
619	gpgme_error_t
620	GpgKeyEdit::revokeSignature (int _uid_index, int _sig_index)
621	{
622	if (!this->key \|\| !this->pass)
623	return gpg_error (GPG_ERR_INV_OBJ);
624
625	type = GPG_EDITKEY_REVSIG;
626	this->uid_index = _uid_index;
627	this->sig_index = _sig_index;
628	return gpg_editkey (this->ctx, this->key, this);
629	}
630
631
632	/* Revoke the subkey with the index @key_index. Optionally
633	a reason can be provided in @reason with a text to describe
634	more details in @cmt.
635	Return value: 0 on success. */
636	gpgme_error_t
637	GpgKeyEdit::revokeSubkey (int _key_index, int _reason, const char *_cmt)
638	{
639	if (!this->key \|\| !this->pass)
640	return gpg_error (GPG_ERR_INV_OBJ);
641
642	type = GPG_EDITKEY_REVKEY;
643	this->key_index = _key_index;
644	this->reason = _reason;
645	free_if_alloc (this->cmt);
646	this->cmt = NULL;
647	if (_cmt)
648	this->cmt = m_strdup (_cmt);
649	return gpg_editkey (this->ctx, this->key, this);
650	}
651
652
653	/* Add a designated revoker to the key. @uid stores
654	the user-ID of the key who is allowed to be a
655	designated revoker.
656	Return value: 0 on success. */
657	gpgme_error_t
658	GpgKeyEdit::addDesignatedRevoker (const char *uid)
659	{
660	if (!this->key \|\| !this->pass)
661	return gpg_error (GPG_ERR_INV_OBJ);
662
663	type = GPG_EDITKEY_ADDREV;
664	free_if_alloc (this->name);
665	this->name = m_strdup (uid);
666	return gpg_editkey (this->ctx, this->key, this);
667	}
668
669	/* Add a photo-ID to the key. The JPG image is given
670	in the file with the name @jpg_file.
671	Return value: 0 on success. */
672	gpgme_error_t
673	GpgKeyEdit::addPhotoid (const char *jpg_file)
674	{
675	if (!this->key \|\| !this->pass)
676	return gpg_error (GPG_ERR_INV_OBJ);
677
678	type = GPG_EDITKEY_ADDPHOTO;
679	this->url = jpg_file;
680	return gpg_editkey (this->ctx, this->key, this);
681	}
682
683	/* Enable the given key. */
684	gpgme_error_t
685	GpgKeyEdit::enable (void)
686	{
687	if (!this->key)
688	return gpg_error (GPG_ERR_INV_OBJ);
689	type = GPG_EDITKEY_ENABLE;
690	return gpg_editkey (this->ctx, this->key, this);
691	}
692
693	/* Disable the given key. */
694	gpgme_error_t
695	GpgKeyEdit::disable (void)
696	{
697	if (!this->key)
698	return gpg_error (GPG_ERR_INV_OBJ);
699	type = GPG_EDITKEY_DISABLE;
700	return gpg_editkey (this->ctx, this->key, this);
701	}
702
703
704	/* Update the user-ID preferences of the user-ID with the
705	index @uid_index to the prefs given in @new_prefs.
706	Return value: 0 on success. */
707	gpgme_error_t
708	GpgKeyEdit::setUseridPreferences (int _uid_index, const char *new_prefs)
709	{
710	if (!this->key \|\| !this->pass)
711	return gpg_error (GPG_ERR_INV_OBJ);
712	return 0;
713	}
714
715
716	/* Delete a signature from the user-ID with the index @uid_index.
717	The index of the signature is given in @sig_index.
718	Return value: 0 on success. */
719	gpgme_error_t
720	GpgKeyEdit::delUseridSignature (int _uid_index, int _sig_index)
721	{
722	if (!this->key)
723	return gpg_error (GPG_ERR_INV_OBJ);
724	type = GPG_EDITKEY_DELSIG;
725	this->uid_index = _uid_index;
726	this->sig_index = _sig_index;
727	return gpg_editkey (this->ctx, this->key, this);
728	}
729
730	/* Set the preferred keyserver for the given key to @url.
731	Return value: 0 on success. */
732	gpgme_error_t
733	GpgKeyEdit::setPreferredKeyserver (int _uid_index, const char *_url)
734	{
735	if (!this->key \|\| !this->pass)
736	return gpg_error (GPG_ERR_INV_OBJ);
737	if (!url)
738	return gpg_error (GPG_ERR_INV_ARG);
739	type = GPG_EDITKEY_KEYSERV;
740	this->url = _url;
741	this->uid_index = _uid_index;
742	return gpg_editkey (this->ctx, this->key, this);
743	}