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acct_maint.c
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acct_maint.c
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/* A module for simple account maintenance. */
#include <time.h>
#include <ctype.h>
#include <apr.h>
#include <apr_hash.h>
#include <apr_strings.h>
#include <httpd.h>
#include <http_log.h>
#include <libxml/tree.h>
#include <libxml/parser.h>
#include <libxml/xmlmemory.h>
#include "private.h"
#include "buffer.h"
#include "db.h"
#include "req.h"
#include "apache_util.h"
#include "util.h"
#include "db_xml.h"
#include "style.h"
#include "auth.h"
#include "xml_util.h"
#include "certs.h"
#include "aggregator.h"
#include "db_ops.h"
#include "proj.h"
#include "rating.h"
#include "hashtable.h"
#include "eigen.h"
#include "diary.h"
#include "site.h"
#include "foaf.h"
#include "acct_maint.h"
typedef struct _ProfileField ProfileField;
struct _ProfileField {
char *description;
char *attr_name;
int size;
int flags;
};
typedef enum {
PROFILE_PUBLIC = 1 << 0,
PROFILE_TEXTAREA = 1 << 1,
PROFILE_BOOLEAN = 1 << 2,
PROFILE_SYNDICATE = 1 << 3
} ProfileFlags;
ProfileField prof_fields[] = {
{ "Given (first) name", "givenname", 40, PROFILE_PUBLIC },
{ "Surname (last name)", "surname", 40, PROFILE_PUBLIC },
{ "Surname first?", "snf", 40, PROFILE_PUBLIC | PROFILE_BOOLEAN },
{ "Email", "email", 40, 0 },
{ "Homepage URL", "url", 40, PROFILE_PUBLIC },
{ "External FOAF URI", "foafuri", 40, 0 },
{ "Number of old messages to display", "numold", 4, 0 },
{ "Notes", "notes", 60015, PROFILE_PUBLIC | PROFILE_TEXTAREA },
{ "Syndicate your blog from another site?", "syndicate", 40, PROFILE_PUBLIC | PROFILE_BOOLEAN | PROFILE_SYNDICATE },
{ "RSS or ATOM feed URL of your blog", "feedurl", 60, PROFILE_PUBLIC | PROFILE_SYNDICATE },
{ NULL }
};
typedef struct _NodeInfo NodeInfo;
struct _NodeInfo {
const char *name;
const char *givenname;
const char *surname;
};
/**
* acct_kill: Remove a user account. Before an account is removed, all cert
* and cert-in records are cleared. An account or account-alias is accepted
* as an argument. Account profile, alias (if any), certs, staff records,
* diary entries, eigen data, and any entries in recent lists will be
* removed. Deletion is not reversible!
**/
static int
acct_kill(VirguleReq *vr, const char *u)
{
int n;
const char *user = NULL;
char *db_key, *db_key2, *user_alias, *diary;
apr_pool_t *p = vr->r->pool;
xmlDoc *profile, *staff, *entry, *agglist;
xmlNode *tree, *cert, *alias, *feed;
db_key = virgule_acct_dbkey(vr, u);
profile = virgule_db_xml_get(p, vr->db, db_key);
if (profile == NULL)
return FALSE;
alias = virgule_xml_find_child (profile->xmlRootNode, "alias");
if (alias != NULL) /* If this is the alias, get username and kill profile */
{
user = virgule_xml_get_prop (p, alias, (xmlChar *)"link");
virgule_db_xml_free (p, profile);
virgule_db_del (vr->db, db_key);
db_key = virgule_acct_dbkey (vr, user);
}
else /* If this is the username, check for lc alias */
{
user = u;
user_alias = apr_pstrdup (p, u);
ap_str_tolower (user_alias);
if (! (strcmp (user_alias,u) == 0))
{
db_key2 = virgule_acct_dbkey (vr, user_alias);
if (db_key2 != NULL)
virgule_db_del (vr->db, db_key2);
}
}
/* Clear cert records */
tree = virgule_xml_find_child (profile->xmlRootNode, "certs");
if (tree)
{
xmlChar *subject, *level;
for (cert = tree->children; cert != NULL; cert = cert->next)
if (cert->type == XML_ELEMENT_NODE && ! xmlStrcmp (cert->name, (xmlChar *)"cert"))
{
subject = xmlGetProp (cert, (xmlChar *)"subj");
level = xmlGetProp (cert, (xmlChar *)"level");
virgule_cert_set (vr, (char *)user, (char *)subject, CERT_LEVEL_NONE);
xmlFree(subject);
xmlFree(level);
}
}
/* Clear cert-in records */
tree = virgule_xml_find_child (profile->xmlRootNode, "certs-in");
if (tree)
{
xmlChar *issuer, *level;
for (cert = tree->children; cert != NULL; cert = cert->next)
if (cert->type == XML_ELEMENT_NODE && ! xmlStrcmp (cert->name, (xmlChar *)"cert"))
{
issuer = xmlGetProp (cert, (xmlChar *)"issuer");
level = xmlGetProp (cert, (xmlChar *)"level");
virgule_cert_set (vr, (char *)issuer, user, CERT_LEVEL_NONE);
xmlFree(issuer);
xmlFree(level);
}
}
/* Clear staff records */
db_key2 = apr_psprintf (p, "acct/%s/staff-person.xml", user);
staff = virgule_db_xml_get (p, vr->db, db_key2);
if (staff != NULL)
{
for (tree = staff->xmlRootNode->children; tree != NULL; tree = tree->next)
{
char *name;
name = virgule_xml_get_prop (p, tree, (xmlChar *)"name");
virgule_proj_set_relation(vr,name,user,"None");
}
virgule_db_xml_free (p, staff);
virgule_db_del (vr->db, db_key2);
}
/* Clear diary entries */
diary = apr_psprintf(p, "acct/%s/diary", user);
for (n = virgule_db_dir_max (vr->db, diary); n >= 0; n--)
{
db_key2 = apr_psprintf (p, "acct/%s/diary/_%d", user, n);
entry = virgule_db_xml_get (p, vr->db, db_key2);
if (entry != NULL)
{
virgule_db_del (vr->db, db_key2);
virgule_db_xml_free (p, entry);
}
}
/* <articlepointers>, <auth>, and <info> tags don't need attention */
/* Remove diary backup, if any */
diary = apr_psprintf (p, "acct/%s/diarybackup", user);
virgule_db_del (vr->db, diary);
/* Remove article index, if any */
db_key2 = apr_psprintf (p, "acct/%s/articles.xml", user);
virgule_db_del (vr->db, db_key2);
/* Remove user from recent lists (if present) */
virgule_remove_recent (vr, "recent/acct.xml", user);
virgule_remove_recent (vr, "recent/diary.xml", user);
/* Remove eigen data (if any) */
virgule_eigen_cleanup (vr, user);
/* Remove the profile and account */
virgule_db_del (vr->db, db_key);
virgule_db_xml_free(p, profile);
/* Remove blog feed buffer, if any */
db_key2 = apr_psprintf (p, "acct/%s/feed.xml", user);
virgule_db_del (vr->db, db_key2);
/* Remove from feedlist */
agglist = virgule_db_xml_get (vr->r->pool, vr->db, "feedlist");
if (agglist != NULL)
for (feed = agglist->xmlRootNode->children; feed != NULL; feed = feed->next)
{
if(!strcmp (user, virgule_xml_get_prop (vr->r->pool, feed, (xmlChar *)"user")))
{
xmlUnlinkNode (feed);
xmlFreeNode (feed);
virgule_db_xml_put (vr->r->pool, vr->db, "feedlist", agglist);
break;
}
}
return TRUE;
}
/**
* virgule_acct_flag_as_spam: Flag the passed user's account as spam. A tag
* will be added with the flagging user's name and a score of 1, 2, or 3
* depending on flagger's cert level. If a flag with the current users name
* already exist, no action will be taken (you can only flag an account as
* spam once. After adding the tag, the total spam score will be evaluated.
* If the spam score exceeds the configured threshold, the account is killed.
**/
static int
acct_flag_as_spam(VirguleReq *vr, const char *u)
{
int score = 0;
int flagged = FALSE;
char *db_key;
xmlDoc *profile;
xmlChar *scorestr;
xmlNode *spamtree;
xmlNode *flag;
xmlNode *spamscore;
virgule_auth_user (vr);
if (vr->r->method_number != M_POST)
return HTTP_METHOD_NOT_ALLOWED;
if(vr->u == NULL)
return virgule_send_error_page (vr, vERROR, "account", "You must be logged in to use the spam reporting system.\n");
if(u == NULL)
return virgule_send_error_page (vr, vERROR, "account", "The specified user account was not found.\n");
if (strcmp (virgule_req_get_tmetric_level (vr, u),
virgule_cert_level_to_name (vr, CERT_LEVEL_NONE)) != 0)
return virgule_send_error_page (vr, vERROR, "account", "Only untrusted observer accounts may be reported as spam.\n");
db_key = virgule_acct_dbkey (vr, u);
profile = virgule_db_xml_get (vr->r->pool, vr->db, db_key);
if (profile == NULL)
return virgule_send_error_page (vr, vERROR, "account", "The specified user account was not found.\n");
spamtree = virgule_xml_ensure_child (profile->xmlRootNode, "spamflags");
/* search for an existing flag from vr->u while tallying the spam score */
for (flag = spamtree->children; flag != NULL; flag = flag->next)
{
if (flag->type == XML_ELEMENT_NODE && !xmlStrcmp (flag->name, (xmlChar *)"flag"))
{
char *issuer = (char *)xmlGetProp (flag, (xmlChar *)"issuer");
if(issuer)
{
score += virgule_cert_level_from_name (vr,
virgule_req_get_tmetric_level (vr, issuer));
if(!strcmp (issuer, vr->u))
flagged = TRUE;
xmlFree (issuer);
}
}
}
if (flagged)
return virgule_send_error_page (vr, vERROR, "spam flag", "You have already flagged this account as spam.\n");
/* add a new spam flag and increment score */
flag = xmlNewChild (spamtree, NULL, (xmlChar *)"flag", NULL);
xmlSetProp (flag, (xmlChar *)"issuer", (xmlChar *)vr->u);
score += virgule_cert_level_from_name (vr, virgule_req_get_tmetric_level (vr, vr->u));
scorestr = (xmlChar *)apr_itoa (vr->r->pool, score);
spamscore = virgule_xml_find_child(profile->xmlRootNode, "spamscore");
if(spamscore == NULL)
spamscore = xmlNewChild (profile->xmlRootNode, NULL, (xmlChar *)"spamscore", scorestr);
else
xmlNodeSetContent (spamscore, scorestr);
virgule_db_xml_put (vr->r->pool, vr->db, db_key, profile);
if(score > vr->priv->acct_spam_threshold)
{
acct_kill(vr, u);
return virgule_send_error_page (vr, vINFO, "account deleted", "<blockquote><p>User account [%s] has been deleted.</p><p>Your spam report pushed the total spam score for this account to [%i].</p><p>Accounts are automatically deleted if their spam score exceeds the currently configured score threshold of [%i].</p><p>Thanks for taking the time to help keep %s free of spam!</p><blockquote>\n", u, score, vr->priv->acct_spam_threshold, vr->priv->site_name);
}
else
return virgule_send_error_page (vr, vINFO, "account flagged", "<blockquote><p>User account [%s] has been flagged as spam.</p><p>Total spam score for this account is [%i].</p><p>Accounts are automatically deleted if their spam score exceeds the currently configured score threshold of [%i].</p><p>Thanks for taking the time to help keep %s free of spam!</p><blockquote>\n", u, score, vr->priv->acct_spam_threshold, vr->priv->site_name);
}
/* update an arbitrary pointer */
int
virgule_acct_set_lastread(VirguleReq *vr, const char *section, const char *location, int last_read)
{
apr_pool_t *p = vr->r->pool;
Db *db = vr->db;
char *db_key;
xmlDoc *profile;
xmlNode *tree, *msgptr;
int status;
virgule_auth_user(vr);
if (vr->u == NULL)
return 0;
db_key = virgule_acct_dbkey (vr, vr->u);
profile = virgule_db_xml_get (p, db, db_key);
if (profile == NULL)
return -1;
tree = virgule_xml_ensure_child (profile->xmlRootNode, apr_psprintf(p, "%spointers", section));
for (msgptr = tree->children; msgptr != NULL; msgptr = msgptr->next)
{
if (msgptr->type == XML_ELEMENT_NODE &&
!xmlStrcmp (msgptr->name, (xmlChar *)"lastread"))
{
char *old_msgptr = (char *)xmlGetProp (msgptr, (xmlChar *)"location");
if (old_msgptr)
{
if (!strcmp (old_msgptr, location))
{
xmlFree (old_msgptr);
break;
}
xmlFree (old_msgptr);
}
}
}
if (msgptr == NULL)
{
msgptr = xmlNewChild (tree, NULL, (xmlChar *)"lastread", NULL);
xmlSetProp (msgptr, (xmlChar *)"location", (xmlChar *)location);
}
xmlSetProp (msgptr, (xmlChar *)"num", (xmlChar *)apr_psprintf(p, "%d", last_read));
xmlSetProp (msgptr, (xmlChar *)"date", (xmlChar *)virgule_iso_now(p));
status = virgule_db_xml_put (p, db, db_key, profile);
virgule_db_xml_free (p, profile);
return status;
}
int
virgule_acct_get_lastread(VirguleReq *vr, const char *section, const char *location)
{
apr_pool_t *p = vr->r->pool;
Db *db = vr->db;
char *db_key;
xmlDoc *profile;
xmlNode *tree, *msgptr;
virgule_auth_user(vr);
if (vr->u == NULL)
return -1;
db_key = virgule_acct_dbkey (vr, vr->u);
profile = virgule_db_xml_get (p, db, db_key);
if (profile == NULL)
return -1;
tree = virgule_xml_find_child (profile->xmlRootNode, apr_psprintf(p, "%spointers", section));
if (tree == NULL)
return -1;
for (msgptr = tree->children; msgptr != NULL; msgptr = msgptr->next)
{
if (msgptr->type == XML_ELEMENT_NODE &&
!xmlStrcmp (msgptr->name, (xmlChar *)"lastread"))
{
char *old_msgptr = (char *)xmlGetProp (msgptr, (xmlChar *)"location");
if (old_msgptr)
{
if (!strcmp (old_msgptr, location))
return atoi ((char *)xmlGetProp (msgptr, (xmlChar *)"num"));
}
}
}
return -1;
}
int
virgule_acct_get_num_old(VirguleReq *vr)
{
virgule_auth_user(vr);
if (vr->u)
{
apr_pool_t *p = vr->r->pool;
char *db_key;
xmlDoc *profile;
xmlNode *tree;
char *num_old;
db_key = virgule_acct_dbkey (vr, vr->u);
profile = virgule_db_xml_get (p, vr->db, db_key);
tree = virgule_xml_find_child (profile->xmlRootNode, "info");
num_old = (char *)xmlGetProp (tree, (xmlChar *)"numold");
if (num_old == NULL || *num_old == '\0')
return 30;
else
return atoi(num_old);
}
return -1;
}
char *
virgule_acct_get_lastread_date(VirguleReq *vr, const char *section, const char *location)
{
apr_pool_t *p = vr->r->pool;
Db *db = vr->db;
char *db_key;
xmlDoc *profile;
xmlNode *tree, *msgptr;
char *date;
virgule_auth_user(vr);
if (vr->u == NULL)
return NULL;
db_key = virgule_acct_dbkey (vr, vr->u);
profile = virgule_db_xml_get (p, db, db_key);
if (profile == NULL)
return NULL;
tree = virgule_xml_find_child (profile->xmlRootNode, apr_psprintf(p, "%spointers", section));
if (tree == NULL)
return NULL;
for (msgptr = tree->children; msgptr != NULL; msgptr = msgptr->next)
{
if (msgptr->type == XML_ELEMENT_NODE &&
!xmlStrcmp (msgptr->name, (xmlChar *)"lastread"))
{
char *old_msgptr = (char *)xmlGetProp (msgptr, (xmlChar *)"location");
if (old_msgptr)
{
if (!strcmp (old_msgptr, location))
{
date = (char *)xmlGetProp (msgptr, (xmlChar *)"date");
if (date == NULL)
date = "1970-01-01 00:00:00";
virgule_db_xml_free (p, profile);
return date;
}
}
}
}
virgule_db_xml_free (p, profile);
return "1970-01-01 00:00:00";
}
/**
* validate_username: Ensure that username is valid.
* @u: Putative username.
*
* Return value: NULL if valid, or reason as string if not.
**/
char *
virgule_validate_username (VirguleReq *vr, const char *u)
{
int len;
int i;
if (u == NULL || !u[0])
return "You must specify a username.";
len = strlen (u);
if (len > 20)
return "The username must be 20 characters or less.";
if (vr->priv->allow_account_extendedcharset)
{
if (!isalnum(u[0]))
return "First character must be alphanumeric.";
for (i = 0; i < len; i++)
{
if (!isalnum (u[i]) && u[i]!='-' && u[i]!='_' && u[i]!=' ' && u[i]!= '.' )
return "The username must contain only alphanumeric, dash, underscore, space, or dot characters.";
}
}
else
{
for (i = 0; i < len; i++)
{
if (!isalnum (u[i]))
return "The username must contain only alphanumeric characters.";
}
}
return NULL;
}
/* Make the db key. Sanity check the username. */
char *
virgule_acct_dbkey (VirguleReq *vr, const char *u)
{
if (virgule_validate_username (vr, u) != NULL)
return NULL;
return apr_pstrcat (vr->r->pool, "acct/", u, "/profile.xml", NULL);
}
static void
acct_set_cookie (VirguleReq *vr, const char *u, const char *cookie,
time_t lifetime)
{
request_rec *r = vr->r;
char *id_cookie, *exp_date;
time_t exp_time;
id_cookie = apr_pstrcat (r->pool, u, ":", cookie, NULL);
exp_time = time (NULL) + lifetime;
exp_date = ap_ht_time (r->pool, (apr_time_t)exp_time * 1000000,
"%A, %d-%b-%Y %H:%M:%S %Z", 1);
apr_table_add (r->headers_out, "Set-Cookie",
apr_psprintf (r->pool, "id=%s; path=/; Expires=%s",
id_cookie, exp_date));
}
static int
acct_index_serve (VirguleReq *vr)
{
apr_pool_t *p = vr->r->pool;
int i;
virgule_auth_user (vr);
if (vr->u)
{
Buffer *b;
const char *level;
char *db_key;
xmlDoc *profile;
xmlNode *info, *aggregate, *tree;
char *value;
db_key = virgule_acct_dbkey (vr, vr->u);
profile = virgule_db_xml_get (p, vr->db, db_key);
info = virgule_xml_find_child (profile->xmlRootNode, "info");
aggregate = virgule_xml_find_child (profile->xmlRootNode, "aggregate");
level = virgule_req_get_tmetric_level (vr, vr->u);
if (virgule_set_temp_buffer (vr) != 0)
return HTTP_INTERNAL_SERVER_ERROR;
b = vr->b;
virgule_buffer_printf (b, "<p>Welcome, <em>%s</em>. The range of functions you "
"can access depends on your <a href=\"%s/certs.html\">certification</a> "
"level. Remember to certify any other users of this site that you "
"know. The trust metric system relies on user participation!</p>\n<p>",
vr->u, vr->prefix);
virgule_render_cert_level_begin (vr, vr->u, CERT_STYLE_SMALL);
virgule_buffer_printf (b, "You are currently certified at the %s level by the other users of this site.", level);
virgule_render_cert_level_end (vr, CERT_STYLE_SMALL);
virgule_buffer_puts (b, "</p><p>At this level you can:</p>\n<ul>");
virgule_buffer_printf (b, "<li>Link to your <a href=\"%s/person/%s\">public profile</a></li>",vr->prefix,ap_escape_uri(vr->r->pool,vr->u));
virgule_buffer_printf (b, "<li><a href=\"%s/diary/\">Post a blog entry</a></li>\n",vr->prefix);
if (virgule_req_ok_to_reply (vr))
{
virgule_buffer_puts (b, "<li>Post replies to articles</li>\n");
}
if (virgule_req_ok_to_create_project (vr))
{
virgule_buffer_printf (b, "<li><a href=\"%s/proj/new.html\">Create new a project</a></li>\n",vr->prefix);
virgule_buffer_printf (b, "<li>Edit your <a href=\"%s/proj/\">existing projects</a></li>\n",vr->prefix);
}
if (virgule_req_ok_to_post (vr))
{
virgule_buffer_printf (b, "<li><a href=\"%s/article/post.html\">Post an article</a></li>\n",vr->prefix);
}
if (virgule_req_ok_to_syndicate_blog (vr))
{
virgule_buffer_printf (b, "<li>Syndicate your blog from an external site</li>\n");
}
virgule_buffer_puts (b, "<li><a href=\"logout.html\">Logout</a></li>\n");
if (vr->priv->projstyle == PROJSTYLE_NICK)
virgule_buffer_puts (b, "<li><a href=\"/proj/updatepointers.html\">Mark all messags as read</a></li>\n");
virgule_buffer_puts (b, "</ul><p> Or you can update your account info: </p>\n");
virgule_buffer_puts (b, "<form method=\"POST\" action=\"update.html\" accept-charset=\"UTF-8\">\n");
for (i = 0; prof_fields[i].description; i++)
{
if (prof_fields[i].flags & PROFILE_SYNDICATE &&
!virgule_req_ok_to_syndicate_blog (vr))
continue;
if (vr->priv->projstyle != PROJSTYLE_NICK &&
!strcmp(prof_fields[i].attr_name, "numold"))
continue;
if (prof_fields[i].flags & PROFILE_SYNDICATE)
tree = aggregate;
else
tree = info;
value = NULL;
if (tree)
value = (char *)xmlGetProp (tree, (xmlChar *)prof_fields[i].attr_name);
virgule_buffer_printf (b, "<p> %s: <br>\n", prof_fields[i].description);
if (prof_fields[i].flags & PROFILE_BOOLEAN)
virgule_buffer_printf (b, "<input name=\"%s\" type=\"checkbox\" %s></p>\n",
prof_fields[i].attr_name,
value ? (strcmp (value, "on") ? "" : " checked") : "");
else if (prof_fields[i].flags & PROFILE_TEXTAREA)
{
// value = virgule_encode_textarea (p, value);
virgule_buffer_printf (b, "<textarea name=\"%s\" cols=\"%d\" rows=\"%d\" wrap=\"soft\">%s</textarea></p>\n",
prof_fields[i].attr_name,
prof_fields[i].size / 1000,
prof_fields[i].size % 1000,
value ? virgule_encode_textarea (p, value) : "");
// value ? ap_escape_html (p, value) : "");
}
else
virgule_buffer_printf (b, "<input name=\"%s\" size=\"%d\" value=\"%s\"> </p>\n",
prof_fields[i].attr_name, prof_fields[i].size,
value ? ap_escape_html (p, value) : "");
if (value != NULL)
xmlFree (value);
}
virgule_buffer_puts (b, " <input type=\"submit\" value=\"Update\">\n</form>\n");
virgule_set_main_buffer (vr);
return virgule_render_in_template (vr, "/templates/acct-info.xml", "content", "User Account Info");
}
else
{
return virgule_render_in_template (vr, "/templates/acct-login.xml", NULL, NULL);
}
}
/*
* acct_newsub_serve: processes the new account form
*/
static int
acct_newsub_serve (VirguleReq *vr)
{
request_rec *r = vr->r;
apr_pool_t *p = r->pool;
Db *db = vr->db;
apr_table_t *args;
const char *u, *pass, *pass2, *email, *subcode;
char *db_key, *db_key_lc;
xmlDoc *profile;
xmlNode *root, *tree;
int status;
char *cookie;
int i;
const char *date;
char *u_lc;
if (!vr->priv->allow_account_creation)
return virgule_send_error_page (vr, vERROR, "forbidden", "No new accounts may be created at this time.\n");
if (vr->r->method_number != M_POST)
return HTTP_METHOD_NOT_ALLOWED;
args = virgule_get_args_table (vr);
if (args == NULL)
return virgule_send_error_page (vr, vERROR, "form data", "Invalid form submission.\n");
u = apr_table_get (args, "u");
pass = apr_table_get (args, "pass");
pass2 = apr_table_get (args, "pass2");
email = apr_table_get (args, "email");
subcode = apr_table_get (args, "subcode");
if (subcode != NULL && subcode[0])
return virgule_send_error_page (vr, vERROR, "forbidden",
"Submission from a banned user agent or IP address.");
if (u == NULL || !u[0])
return virgule_send_error_page (vr, vERROR, "username",
"You must specify a username.");
if (strlen (u) > 20)
return virgule_send_error_page (vr, vERROR, "username",
"The username must be 20 characters or less.");
/* sanity check user name */
db_key = virgule_acct_dbkey (vr, u);
if (db_key == NULL && vr->priv->allow_account_extendedcharset)
return virgule_send_error_page (vr, vERROR, "username",
"Username must begin with an alphanumeric character and contain only alphanumerics, spaces, dashes, underscores, or periods.");
else if (db_key == NULL)
return virgule_send_error_page (vr, vERROR, "username",
"Username must contain only alphanumeric characters.");
u_lc = apr_pstrdup (p, u);
ap_str_tolower (u_lc);
db_key_lc = virgule_acct_dbkey (vr, u_lc);
profile = virgule_db_xml_get (p, db, db_key_lc);
if (profile != NULL)
return virgule_send_error_page (vr, vERROR,
"username",
"The user name <em>%s</em> is already in use.",
u);
if (pass == NULL || !pass[0])
return virgule_send_error_page (vr, vERROR, "password",
"You must specify a password.");
if (pass == NULL || pass2 == NULL)
return virgule_send_error_page (vr, vERROR,
"password",
"You must specify a password and enter it twice.");
if (!strcmp (pass, u))
return virgule_send_error_page (vr, vERROR,
"password",
"The username may not be used as the password.");
if (strcmp (pass, pass2))
return virgule_send_error_page (vr, vERROR,
"password",
"The passwords must match. Have a cup of coffee and try again.");
if (email == NULL || !email[0])
return virgule_send_error_page (vr, vERROR, "email address",
"You must specify a valid email address. The email address is needed for account authentication, and password recovery purposes.");
profile = virgule_db_xml_doc_new (p);
root = xmlNewDocNode (profile, NULL, (xmlChar *)"profile", NULL);
profile->xmlRootNode = root;
date = virgule_iso_now (p);
tree = xmlNewChild (root, NULL, (xmlChar *)"date", (xmlChar *)date);
tree = xmlNewChild (root, NULL, (xmlChar *)"auth", NULL);
xmlSetProp (tree, (xmlChar *)"pass", (xmlChar *)pass);
cookie = virgule_rand_cookie (p);
#if 0
virgule_buffer_printf (b, "Cookie is %s\n", cookie);
#endif
xmlSetProp (tree, (xmlChar *)"cookie", (xmlChar *)cookie);
tree = xmlNewChild (root, NULL, (xmlChar *)"info", NULL);
xmlSetProp (tree, (xmlChar *)"format", (xmlChar *)"1");
for (i = 0; prof_fields[i].description; i++)
{
const char *val;
val = apr_table_get (args, prof_fields[i].attr_name);
if (val == NULL)
continue;
if (virgule_is_input_valid(val))
{
if (prof_fields[i].flags & PROFILE_TEXTAREA)
{
val = virgule_decode_textarea (p, val);
/* newlines encoded because of the way libxml2 stores properties */
val = virgule_str_subst(p, val, "\n", " ");
val = virgule_normalize_html (vr, val, NULL);
}
xmlSetProp (tree, (xmlChar *)prof_fields[i].attr_name, (xmlChar *)val);
}
else
return virgule_send_error_page (vr, vERROR,
"invalid UTF-8",
"Only valid characters that use valid UTF-8 sequences may be submitted.");
}
status = virgule_db_xml_put (p, db, db_key, profile);
if (status)
return virgule_send_error_page (vr, vERROR,
"internal",
"There was an error storing the account profile.");
acct_set_cookie (vr, u, cookie, 86400 * 365);
vr->u = u;
virgule_add_recent (p, db, "recent/acct.xml", u, 100, 0);
/* store lower case alias if necessary */
if (! (strcmp (u_lc, u) == 0))
{
profile = virgule_db_xml_doc_new (p);
root = xmlNewDocNode (profile, NULL, (xmlChar *)"profile", NULL);
profile->xmlRootNode = root;
tree = xmlNewChild (root, NULL, (xmlChar *)"alias", NULL);
xmlSetProp (tree, (xmlChar *)"link", (xmlChar *)u);
status = virgule_db_xml_put (p, db, db_key_lc, profile);
}
return virgule_send_error_page (vr, vINFO,
"Account created",
"Account <a href=\"%s/person/%s/\">%s</a> created.\n",
vr->prefix, ap_escape_uri (vr->r->pool,u), u);
}
/* Success: return 1, set *ret1 to username and *ret2 to cookie
* Failure: return 0, set *ret1 and *ret2 to short and long error messages
* FIXME: this function's interface is _nasty_
*/
int
virgule_acct_login (VirguleReq *vr, const char *u, const char *pass,
const char **ret1, const char **ret2)
{
request_rec *r = vr->r;
apr_pool_t *p = r->pool;
Db *db = vr->db;
char *db_key, *stored_pass;
xmlDoc *profile;
xmlNode *root, *tree;
char *cookie;
const int n_iter_max = 10;
int i;
*ret1 = *ret2 = NULL;
if (u == NULL || !u[0])
{
*ret1 = "Specify a username";
*ret2 = "You must specify a username.";
return 0;
}
if (pass == NULL || !pass[0])
{
*ret1 = "Specify a password";
*ret2 = "You must specify a password.";
return 0;
}
for (i = 0; i < n_iter_max; i++)
{
/* sanity check user name */
db_key = virgule_acct_dbkey (vr, u);
if (db_key == NULL)
{
*ret1 = "Invalid username";
*ret2 = "Username must contain only alphanumeric characters.";
return 0;
}
profile = virgule_db_xml_get (p, db, db_key);
if (profile == NULL)
{
*ret1 = "Account does not exist";
*ret2 = apr_psprintf (p, "Account <em>%s</em> does not exist. Try the <a href=\"new.html\">new account creation</a> page.", u);
return 0;
}
#if 0
virgule_buffer_printf (b, "Profile: %s\n", profile->name);
return virgule_buffer_send_response (r, b);
#endif
root = profile->xmlRootNode;
tree = virgule_xml_find_child (root, "alias");
if (tree == NULL)
break;
u = virgule_xml_get_prop (p, tree, (xmlChar *)"link");
db_key = virgule_acct_dbkey (vr, u);
profile = virgule_db_xml_get (p, db, db_key);
}
if (i == n_iter_max)
{
*ret1 = "Alias loop";
*ret2 = apr_psprintf (p, "More than %d levels of alias indirection from %s, indicating an alias loop. This is a problem with the server.",
n_iter_max, u);
return 0;
}
tree = virgule_xml_find_child (root, "auth");
if (tree == NULL)
{
*ret1 = "Account is missing auth field";
*ret2 = apr_psprintf (p, "Account <em>%s</em> is missing its auth field. This is a problem with the server.", u);
return 0;
}
stored_pass = (char *)xmlGetProp (tree, (xmlChar *)"pass");
if (strcmp (pass, stored_pass))
{
xmlFree (stored_pass);
*ret1 = "Incorrect password";
*ret2 = "Incorrect password, try again.";
return 0;
}
xmlFree (stored_pass);
cookie = (char *)xmlGetProp (tree, (xmlChar *)"cookie");
*ret1 = apr_pstrdup (p, u);
*ret2 = apr_pstrdup (p, cookie);
xmlFree (cookie);
return 1;
}
/*
* Send an email to the given user reminding them of their password
*/
static int
send_email(VirguleReq *vr, const char *mail, const char *u, const char *pass)
{
FILE *fp;
char cmd[1024];
snprintf( cmd, sizeof(cmd)-1, "/usr/lib/sendmail -t -f %s", vr->priv->admin_email);
if ((fp = popen( cmd, "w")) == NULL)
return virgule_send_error_page (vr, vERROR, "SMTP", "There was an error sending mail to <em>%s</em>.\n", mail);
fprintf(fp,"To: %s\n", mail);
#if 1
fprintf(fp,"Bcc: %s\n", vr->priv->admin_email);
#endif
fprintf(fp,"From: %s\n", vr->priv->admin_email);
fprintf(fp,"Subject: Your %s password\n\n", vr->priv->site_name);
fprintf(fp,"Someone at IP address %s requested a ", vr->r->connection->remote_ip);
fprintf(fp,"password reminder for your %s account.\n\n", vr->priv->site_name);
fprintf(fp, "Your username is: %s\n", u);
fprintf(fp, "Your password is: %s\n\n", pass);
fprintf(fp, "If you did not request this reminder don't worry, as ");
fprintf(fp, "only you will receive this email.\n" );
pclose(fp);
return 1;
}
/*
* acct_loginsub_serve: handles the account login form submission
*/
static int
acct_loginsub_serve (VirguleReq *vr)
{
request_rec *r = vr->r;
apr_table_t *args;
const char *u, *pass, *forgot;
const char *ret1, *ret2;
const char *cookie;
if (vr->r->method_number != M_POST)
return HTTP_METHOD_NOT_ALLOWED;
r->content_type = "text/plain; charset=UTF-8";
args = virgule_get_args_table (vr);
if (args == NULL)
return virgule_send_error_page (vr, vERROR, "form data", "Invalid form submission.\n");
u = apr_table_get (args, "u");
pass = apr_table_get (args, "pass");
forgot = apr_table_get (args, "forgot");