mirror of
https://github.com/nzp-team/fteqw.git
synced 2024-11-25 13:21:36 +00:00
b2f5ae8f1c
xmpp got some major tweaks. more sasl methods etc. multiple accounts. misc other tweaks. git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@4418 fc73d0e0-1445-4013-8a0c-d673dee63da5
698 lines
14 KiB
C
698 lines
14 KiB
C
#include "../plugin.h"
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#include "xml.h"
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void XML_Destroy(xmltree_t *t);
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char *XML_GetParameter(xmltree_t *t, char *paramname, char *def)
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{
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xmlparams_t *p;
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if (t)
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{
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for (p = t->params; p; p = p->next)
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if (!strcmp(p->name, paramname))
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return p->val;
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}
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return def;
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}
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void XML_AddParameter(xmltree_t *t, char *paramname, char *value)
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{
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xmlparams_t *p = malloc(sizeof(xmlparams_t));
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Q_strlcpy(p->name, paramname, sizeof(p->name));
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Q_strlcpy(p->val, value, sizeof(p->val));
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if (t->params) //reverse insert
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{
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xmlparams_t *prev;
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for(prev = t->params; prev->next; prev = prev->next)
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;
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prev->next = p;
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p->next = NULL;
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}
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else
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{
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p->next = t->params;
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t->params = p;
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}
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}
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void XML_AddParameteri(xmltree_t *t, char *paramname, int value)
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{
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char svalue[64];
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Q_snprintf(svalue, sizeof(svalue), "%i", value);
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XML_AddParameter(t, paramname, svalue);
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}
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xmltree_t *XML_CreateNode(xmltree_t *parent, char *name, char *xmlns, char *body)
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{
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int bodylen = strlen(body);
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struct subtree_s *node = malloc(sizeof(*node));
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//clear out links
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node->params = NULL;
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node->child = NULL;
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node->sibling = NULL;
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//link into parent if we actually have a parent.
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if (parent)
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{
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if (parent->child)
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{ //add at tail
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xmltree_t *prev;
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for(prev = parent->child; prev->sibling; prev = prev->sibling)
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;
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prev->sibling = node;
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node->sibling = NULL;
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}
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else
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{
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node->sibling = parent->child;
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parent->child = node;
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}
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}
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Q_strlcpy(node->name, name, sizeof(node->name));
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Q_strlcpy(node->xmlns, xmlns, sizeof(node->xmlns));
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Q_strlcpy(node->xmlns_dflt, xmlns, sizeof(node->xmlns_dflt));
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node->body = malloc(bodylen+1);
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memcpy(node->body, body, bodylen+1);
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if (*xmlns)
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XML_AddParameter(node, "xmlns", xmlns);
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return node;
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}
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const struct
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{
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char code;
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int namelen;
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char *name;
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} xmlchars[] =
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{
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{'<', 2, "lt"},
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{'>', 2, "gt"},
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{'&', 3, "amp"},
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{'\'', 4, "apos"},
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{'\"', 4, "quot"},
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{0, 0, NULL}
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};
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//converts < to < etc.
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//returns the end of d.
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char *XML_Markup(char *s, char *d, int dlen)
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{
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int i;
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dlen--;
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while(*s)
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{
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for(i = 0; xmlchars[i].name; i++)
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{
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if (*s == xmlchars[i].code)
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break;
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}
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if (xmlchars[i].name)
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{
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if (dlen < xmlchars[i].namelen+2)
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break;
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*d++ = '&';
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memcpy(d, xmlchars[i].name, xmlchars[i].namelen);
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d+=xmlchars[i].namelen;
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*d++ = ';';
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s++;
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dlen -= xmlchars[i].namelen+2;
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}
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else
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{
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if (!dlen)
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break;
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dlen--;
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*d++ = *s++;
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}
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}
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*d = 0;
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return d;
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}
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//inplace. result will always be same length or shorter.
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//converts < etc to their original chars
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void XML_Unmark(char *s)
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{
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char *d;
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int i;
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for (d = s; *s; )
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{
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if (*s == '&')
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{
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s++;
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for (i = 0; xmlchars[i].name; i++)
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{
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if (!strncmp(s, xmlchars[i].name, xmlchars[i].namelen) && s[xmlchars[i].namelen] == ';')
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break;
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}
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if (xmlchars[i].name)
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{
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s += xmlchars[i].namelen+1;
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*d++ = xmlchars[i].code;
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}
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else
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{
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*d++ = '&';
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}
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}
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else
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*d++ = *s++;
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}
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*d = 0;
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}
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struct buf_ctx
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{
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char *buf;
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int len;
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int maxlen;
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};
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static void buf_cat(struct buf_ctx *buf, char *data, int datalen)
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{
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int newlen = buf->len + datalen+1;
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if (newlen > buf->maxlen)
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{
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char *newd;
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newlen *= 2;
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newd = malloc(newlen);
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memcpy(newd, buf->buf, buf->len);
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free(buf->buf);
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buf->buf = newd;
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buf->maxlen = newlen;
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}
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memcpy(buf->buf + buf->len, data, datalen);
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buf->len += datalen;
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}
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static void XML_DumpToBuf(struct buf_ctx *buf, xmltree_t *t, int indent)
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{
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xmltree_t *c;
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xmlparams_t *p;
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int i;
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for (i = 0; i < indent; i++)
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buf_cat(buf, " ", 1);
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buf_cat(buf, "<", 1);
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buf_cat(buf, t->name, strlen(t->name));
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for (p = t->params; p; p = p->next)
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{
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buf_cat(buf, " ", 1);
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buf_cat(buf, p->name, strlen(p->name));
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buf_cat(buf, "=\'", 2);
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buf_cat(buf, p->val, strlen(p->val));
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buf_cat(buf, "\'", 1);
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}
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if (t->child)
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{
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buf_cat(buf, ">", 1);
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if (indent>=0)
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buf_cat(buf, "\n", 1);
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for (c = t->child; c; c = c->sibling)
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XML_DumpToBuf(buf, c, ((indent<0)?indent:(indent+2)));
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for (i = 0; i < indent; i++)
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buf_cat(buf, " ", 1);
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buf_cat(buf, "</", 2);
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buf_cat(buf, t->name, strlen(t->name));
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buf_cat(buf, ">", 1);
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}
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else if (*t->body)
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{
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buf_cat(buf, ">", 1);
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buf_cat(buf, t->body, strlen(t->body));
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buf_cat(buf, "</", 2);
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buf_cat(buf, t->name, strlen(t->name));
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buf_cat(buf, ">", 1);
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}
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else
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{
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buf_cat(buf, "/>", 2);
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}
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if (indent>=0)
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buf_cat(buf, "\n", 1);
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}
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char *XML_GenerateString(xmltree_t *root, qboolean readable)
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{
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struct buf_ctx buf = {NULL, 0, 0};
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XML_DumpToBuf(&buf, root, readable?0:-1);
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buf_cat(&buf, "", 1);
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return buf.buf;
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}
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xmltree_t *XML_Parse(char *buffer, int *startpos, int maxpos, qboolean headeronly, char *defaultnamespace)
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{
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xmlparams_t *p;
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xmltree_t *child;
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xmltree_t *ret;
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int bodypos;
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int bodymax = 0;
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int pos, i;
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char *tagend;
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char *tagstart;
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char *ns;
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char token[1024];
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pos = *startpos;
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while (buffer[pos] >= '\0' && buffer[pos] <= ' ')
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{
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if (pos >= maxpos)
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break;
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pos++;
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}
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if (pos == maxpos)
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{
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*startpos = pos;
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return NULL; //nothing anyway.
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}
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//expect a <
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if (buffer[pos] != '<')
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{
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Con_Printf("Missing open bracket\n");
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return NULL; //should never happen
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}
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if (buffer[pos+1] == '/')
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{
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Con_Printf("Unexpected close tag.\n");
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return NULL; //err, terminating a parent tag
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}
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tagend = strchr(buffer+pos, '>');
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if (!tagend)
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{
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Con_Printf("Missing close bracket\n");
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return NULL; //should never happen
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}
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*tagend = '\0';
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tagend++;
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//assume no nulls in the tag header.
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tagstart = buffer+pos+1;
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while (*tagstart == ' ' || *tagstart == '\n' || *tagstart == '\r' || *tagstart == '\t')
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tagstart++;
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for (i = 0; i < sizeof(token)-1 && *tagstart; )
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{
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if (*tagstart == ' ' || (i&&*tagstart == '/') || (i&&*tagstart == '?') || *tagstart == '\n' || *tagstart == '\r' || *tagstart == '\t')
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break;
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token[i++] = *tagstart++;
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}
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token[i] = 0;
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pos = tagend - buffer;
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ret = malloc(sizeof(xmltree_t));
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memset(ret, 0, sizeof(*ret));
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ns = strchr(token, ':');
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if (ns)
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{
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*ns = 0;
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ns++;
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memcpy(ret->xmlns, "xmlns:", 6);
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Q_strlcpy(ret->xmlns+6, token, sizeof(ret->xmlns)-6);
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Q_strlcpy(ret->name, ns, sizeof(ret->name));
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}
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else
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{
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Q_strlcpy(ret->xmlns, "xmlns", sizeof(ret->xmlns));
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Q_strlcpy(ret->name, token, sizeof(ret->name));
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}
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while(*tagstart)
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{
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int nlen;
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while(*(unsigned char*)tagstart <= ' ' && *tagstart)
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tagstart++; //skip whitespace (note that we know there is a null terminator before the end of the buffer)
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if (!*tagstart)
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break;
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p = malloc(sizeof(xmlparams_t));
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nlen = 0;
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while (nlen < sizeof(p->name)-2)
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{
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if (*(unsigned char*)tagstart <= ' ' || *tagstart == '/' || *tagstart == '?')
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break;
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if (*tagstart == '=')
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break;
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p->name[nlen++] = *tagstart++;
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}
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p->name[nlen++] = '\0';
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while(*(unsigned char*)tagstart <= ' ' && *tagstart)
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tagstart++; //skip whitespace (note that we know there is a null terminator before the end of the buffer)
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if (*tagstart != '=')
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break;
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tagstart++;
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while(*(unsigned char*)tagstart <= ' ' && *tagstart)
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tagstart++; //skip whitespace (note that we know there is a null terminator before the end of the buffer)
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nlen = 0;
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if (*tagstart == '\'')
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{
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tagstart++;
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while (*tagstart && nlen < sizeof(p->name)-2)
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{
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if(*tagstart == '\'')
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break;
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p->val[nlen++] = *tagstart++;
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}
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tagstart++;
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p->val[nlen++] = '\0';
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}
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else if (*tagstart == '\"')
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{
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tagstart++;
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while (*tagstart && nlen < sizeof(p->name)-2)
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{
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if(*tagstart == '\"')
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break;
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p->val[nlen++] = *tagstart++;
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}
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tagstart++;
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p->val[nlen++] = '\0';
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}
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else
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{
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while (*tagstart && nlen < sizeof(p->name)-2)
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{
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if(*tagstart <= ' ')
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break;
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p->val[nlen++] = *tagstart++;
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}
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p->val[nlen++] = '\0';
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}
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XML_Unmark(p->val);
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p->next = ret->params;
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ret->params = p;
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}
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ns = XML_GetParameter(ret, ret->xmlns, "");
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Q_strlcpy(ret->xmlns, ns, sizeof(ret->xmlns));
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ns = XML_GetParameter(ret, "xmlns", NULL);
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Q_strlcpy(ret->xmlns_dflt, ns?ns:defaultnamespace, sizeof(ret->xmlns_dflt));
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tagend[-1] = '>';
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if (tagend[-2] == '/')
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{ //no body
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ret->body = malloc(1);
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*ret->body = 0;
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*startpos = pos;
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return ret;
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}
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if (ret->name[0] == '?')
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{
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//no body either
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if (tagend[-2] == '?')
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{
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ret->body = malloc(1);
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*ret->body = 0;
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*startpos = pos;
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return ret;
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}
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}
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if (headeronly)
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{
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*startpos = pos;
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return ret;
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}
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//does it have a body, or is it child tags?
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bodypos = 0;
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while(1)
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{
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if (pos == maxpos)
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{ //malformed
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Con_Printf("tree is malfored\n");
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XML_Destroy(ret);
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return NULL;
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}
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if (buffer[pos] == '<')
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{
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if (buffer[pos+1] == '/')
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{ //the end of this block
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//FIXME: check name
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tagend = strchr(buffer+pos, '>');
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if (!tagend)
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{
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Con_Printf("No close tag\n");
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XML_Destroy(ret);
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return NULL; //should never happen
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}
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tagend++;
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pos = tagend - buffer;
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break;
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}
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child = XML_Parse(buffer, &pos, maxpos, false, ret->xmlns_dflt);
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if (!child)
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{
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Con_Printf("Child block is unparsable\n");
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XML_Destroy(ret);
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return NULL;
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}
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child->sibling = ret->child;
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ret->child = child;
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}
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else
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{
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char c = buffer[pos++];
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if (bodypos == bodymax)
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{
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int nlen = bodypos*2 + 64;
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char *nb = malloc(nlen);
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memcpy(nb, ret->body, bodypos);
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free(ret->body);
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ret->body = nb;
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bodymax = nlen;
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}
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ret->body[bodypos++] = c;
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}
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}
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if (bodypos == bodymax)
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{
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int nlen = bodypos+1;
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char *nb = malloc(nlen);
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memcpy(nb, ret->body, bodypos);
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free(ret->body);
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ret->body = nb;
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bodymax = nlen;
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}
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ret->body[bodypos++] = '\0';
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XML_Unmark(ret->body);
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*startpos = pos;
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return ret;
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}
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void XML_Destroy(xmltree_t *t)
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{
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xmlparams_t *p, *np;
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if (t->child)
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XML_Destroy(t->child);
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if (t->sibling)
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XML_Destroy(t->sibling);
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for (p = t->params; p; p = np)
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{
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np = p->next;
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free(p);
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}
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free(t->body);
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free(t);
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}
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xmltree_t *XML_ChildOfTree(xmltree_t *t, char *name, int childnum)
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{
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if (t)
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{
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for (t = t->child; t; t = t->sibling)
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{
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if (!strcmp(t->name, name))
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{
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if (childnum-- == 0)
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return t;
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}
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}
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}
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return NULL;
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}
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xmltree_t *XML_ChildOfTreeNS(xmltree_t *t, char *xmlns, char *name, int childnum)
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{
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if (t)
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{
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for (t = t->child; t; t = t->sibling)
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{
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if (!strcmp(t->xmlns, xmlns) && !strcmp(t->name, name))
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{
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if (childnum-- == 0)
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return t;
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}
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}
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}
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return NULL;
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}
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char *XML_GetChildBody(xmltree_t *t, char *paramname, char *def)
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{
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xmltree_t *c = XML_ChildOfTree(t, paramname, 0);
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if (c)
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return c->body;
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return def;
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}
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void XML_ConPrintTree(xmltree_t *t, int indent)
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{
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|
int start, c, chunk;
|
|
struct buf_ctx buf = {NULL, 0, 0};
|
|
XML_DumpToBuf(&buf, t, indent);
|
|
buf_cat(&buf, "", 1);
|
|
|
|
for (start = 0; start < buf.len; )
|
|
{
|
|
chunk = buf.len - start;
|
|
if (chunk > 128)
|
|
chunk = 128;
|
|
c = buf.buf[start+chunk];
|
|
buf.buf[start+chunk] = 0;
|
|
Con_Printf("%s", buf.buf+start);
|
|
buf.buf[start+chunk] = c;
|
|
|
|
start += chunk;
|
|
}
|
|
|
|
free(buf.buf);
|
|
}
|
|
|
|
|
|
static void XML_SkipWhite(char *msg, int *pos, int max)
|
|
{
|
|
while (*pos < max && (
|
|
msg[*pos] == ' ' ||
|
|
msg[*pos] == '\t' ||
|
|
msg[*pos] == '\r' ||
|
|
msg[*pos] == '\n'
|
|
))
|
|
*pos+=1;
|
|
}
|
|
static qboolean XML_ParseString(char *msg, int *pos, int max, char *out, int outlen)
|
|
{
|
|
*out = 0;
|
|
if (*pos < max && msg[*pos] == '\"')
|
|
{
|
|
*pos+=1;
|
|
|
|
outlen--;
|
|
while (*pos < max && msg[*pos] != '\"')
|
|
{
|
|
if (!outlen)
|
|
return false;
|
|
*out = msg[*pos];
|
|
out++;
|
|
outlen--;
|
|
*pos+=1;
|
|
}
|
|
if (*pos < max && msg[*pos] == '\"')
|
|
{
|
|
*out = 0;
|
|
*pos+=1;
|
|
return true;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
outlen--;
|
|
while (*pos < max
|
|
&& msg[*pos] != ' '
|
|
&& msg[*pos] != '\t'
|
|
&& msg[*pos] != '\r'
|
|
&& msg[*pos] != '\n'
|
|
&& msg[*pos] != ':'
|
|
&& msg[*pos] != ','
|
|
&& msg[*pos] != '}'
|
|
&& msg[*pos] != '{')
|
|
{
|
|
if (!outlen)
|
|
return false;
|
|
*out = msg[*pos];
|
|
out++;
|
|
outlen--;
|
|
*pos+=1;
|
|
}
|
|
*out = 0;
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
xmltree_t *XML_FromJSON(xmltree_t *t, char *name, char *json, int *jsonpos, int jsonlen)
|
|
{
|
|
char child[4096];
|
|
char *start;
|
|
char *end;
|
|
XML_SkipWhite(json, jsonpos, jsonlen);
|
|
|
|
if (*jsonpos < jsonlen && json[*jsonpos] == '{')
|
|
{
|
|
*jsonpos+=1;
|
|
XML_SkipWhite(json, jsonpos, jsonlen);
|
|
|
|
t = XML_CreateNode(t, name, "", "");
|
|
|
|
while (*jsonpos < jsonlen && json[*jsonpos] == '\"')
|
|
{
|
|
if (!XML_ParseString(json, jsonpos, jsonlen, child, sizeof(child)))
|
|
break;
|
|
XML_SkipWhite(json, jsonpos, jsonlen);
|
|
if (*jsonpos < jsonlen && json[*jsonpos] == ':')
|
|
{
|
|
*jsonpos+=1;
|
|
if (!XML_FromJSON(t, child, json, jsonpos, jsonlen))
|
|
break;
|
|
}
|
|
XML_SkipWhite(json, jsonpos, jsonlen);
|
|
|
|
if (*jsonpos < jsonlen && json[*jsonpos] == ',')
|
|
{
|
|
*jsonpos+=1;
|
|
XML_SkipWhite(json, jsonpos, jsonlen);
|
|
continue;
|
|
}
|
|
break;
|
|
}
|
|
|
|
if (*jsonpos < jsonlen && json[*jsonpos] == '}')
|
|
{
|
|
*jsonpos+=1;
|
|
return t;
|
|
}
|
|
XML_Destroy(t);
|
|
}
|
|
else if (*jsonpos < jsonlen)
|
|
{
|
|
if (XML_ParseString(json, jsonpos, jsonlen, child, sizeof(child)))
|
|
return XML_CreateNode(t, name, "", child);
|
|
}
|
|
return NULL;
|
|
}
|