X-Git-Url: http://git.indexdata.com/?p=yaz-moved-to-github.git;a=blobdiff_plain;f=src%2Fsrwutil.c;h=9a54e237c6ac51a77df3da3a3d911fac687ec3fc;hp=168d12b9ab75f591a72d65231bbc177f00cf005f;hb=922617826ecc28cbdcbc5e6d5037843c7985a408;hpb=b2062c674a33f3c6c0e5752a18408a11718afc91

diff --git a/src/srwutil.c b/src/srwutil.c
index 168d12b..9a54e23 100644
--- a/src/srwutil.c
+++ b/src/srwutil.c
@@ -2,7 +2,7 @@
  * Copyright (C) 1995-2005, Index Data ApS
  * See the file LICENSE for details.
  *
- * $Id: srwutil.c,v 1.35 2006-02-01 20:28:44 adam Exp $
+ * $Id: srwutil.c,v 1.40 2006-05-07 18:35:47 adam Exp $
  */
 /**
  * \file srwutil.c
@@ -24,6 +24,52 @@ static int hex_digit (int ch)
     return 0;
 }
 
+void encode_uri_char(char *dst, char ch)
+{
+    if (ch == ' ')
+        strcpy(dst, "+");
+    else if ((ch >= 'A' && ch <= 'Z') || (ch >= 'a' && ch <= 'z') ||
+        (ch >= '0' && ch <= '9'))
+    {
+        dst[0] = ch;
+        dst[1] = '\0';
+    }
+    else
+    {
+        dst[0] = '%';
+        sprintf(dst+1, "%02X", (unsigned char ) ch);
+    }
+}
+
+void yaz_array_to_uri(char **path, ODR o, char **name, char **value)
+{
+    size_t i, szp = 0, sz = 0;
+    for(i = 0; name[i]; i++)
+        sz += strlen(name[i]) + 3 + strlen(value[i]) * 3;
+    *path = odr_malloc(o, sz);
+    
+    for(i = 0; name[i]; i++)
+    {
+        size_t j, ilen;
+        if (i)
+            (*path)[szp++] = '&';
+        ilen = strlen(name[i]);
+        memcpy(*path+szp, name[i], ilen);
+        szp += ilen;
+        (*path)[szp++] = '=';
+        for (j = 0; value[i][j]; j++)
+        {
+            size_t vlen;
+            char vstr[5];
+            encode_uri_char(vstr, value[i][j]);
+            vlen = strlen(vstr);
+            memcpy(*path+szp, vstr, vlen);
+            szp += vlen;
+        }
+    }
+    (*path)[szp] = '\0';
+}
+
 int yaz_uri_array(const char *path, ODR o, char ***name, char ***val)
 {
     int no = 2;
@@ -32,7 +78,7 @@ int yaz_uri_array(const char *path, ODR o, char ***name, char ***val)
     if (*path == '?')
         path++;
     if (!*path)
-        return no;
+        return 0;
     cp = path;
     while ((cp = strchr(cp, '&')))
     {
@@ -130,6 +176,91 @@ char *yaz_uri_val(const char *path, const char *name, ODR o)
     return 0;
 }
 
+static int yaz_base64decode(const char *in, char *out)
+{
+    const char *map = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
+	"abcdefghijklmnopqrstuvwxyz0123456789+/";
+    int olen = 0;
+    int len = strlen(in);
+
+    while (len >= 4)
+    {
+	char i0, i1, i2, i3;
+	char *p;
+
+	if (!(p = strchr(map, in[0])))
+	    return 0;
+	i0 = p - map;
+	len--;
+	if (!(p = strchr(map, in[1])))
+	    return 0;
+	i1 = p - map;
+	len--;
+	*(out++) = i0 << 2 | i1 >> 4;
+	olen++;
+	if (in[2] == '=')
+	    break;
+	if (!(p = strchr(map, in[2])))
+	    return 0;
+	i2 = p - map;
+	len--;
+	*(out++) = i1 << 4 | i2 >> 2;
+	olen++;
+	if (in[3] == '=')
+	    break;
+	if (!(p = strchr(map, in[3])))
+	    return 0;
+	i3 = p - map;
+	len--;
+	*(out++) = i2 << 6 | i3;
+	olen++;
+
+	in += 4;
+    }
+
+    *out = '\0';
+    return olen;
+}
+
+/**
+ * Look for authentication tokens in HTTP Basic parameters or in x-username/x-password
+ * parameters. Added by SH.
+ */
+static void yaz_srw_decodeauth(Z_SRW_PDU *sr, Z_HTTP_Request *hreq, char *username,
+        char *password, ODR decode)
+{
+    const char *basic = z_HTTP_header_lookup(hreq->headers, "Authorization");
+
+    if (username)
+        sr->username = username;
+    if (password)
+        sr->password = password;
+
+    if (basic) {
+        int len, olen;
+        char out[256];
+        char ubuf[256] = "", pbuf[256] = "", *p;
+        if (strncmp(basic, "Basic ", 6))
+            return;
+        basic += 6;
+        len = strlen(basic);
+        if (!len || len > 256)
+            return;
+        olen = yaz_base64decode(basic, out);
+        /* Format of out should be username:password at this point */
+        strcpy(ubuf, out);
+        if ((p = strchr(ubuf, ':'))) {
+            *(p++) = '\0';
+            if (*p)
+                strcpy(pbuf, p);
+        }
+        if (*ubuf)
+            sr->username = odr_strdup(decode, ubuf);
+        if (*pbuf)
+            sr->password = odr_strdup(decode, pbuf);
+    }
+}
+
 void yaz_uri_val_int(const char *path, const char *name, ODR o, int **intp)
 {
     const char *v = yaz_uri_val(path, name, o);
@@ -193,6 +324,7 @@ int yaz_srw_decode(Z_HTTP_Request *hreq, Z_SRW_PDU **srw_pdu,
                                                         "Content-Type");
         if (content_type && 
             (!yaz_strcmp_del("text/xml", content_type, "; ") ||
+             !yaz_strcmp_del("application/soap+xml", content_type, "; ") ||
              !yaz_strcmp_del("text/plain", content_type, "; ")))
         {
             char *db = "Default";
@@ -303,6 +435,8 @@ int yaz_sru_decode(Z_HTTP_Request *hreq, Z_SRW_PDU **srw_pdu,
         char *version = 0;
         char *query = 0;
         char *pQuery = 0;
+        char *username = 0;
+        char *password = 0;
         char *sortKeys = 0;
         char *stylesheet = 0;
         char *scanClause = 0;
@@ -347,6 +481,10 @@ int yaz_sru_decode(Z_HTTP_Request *hreq, Z_SRW_PDU **srw_pdu,
                     query = v;
                 else if (!strcmp(n, "x-pquery"))
                     pQuery = v;
+                else if (!strcmp(n, "x-username"))
+                    username = v;
+                else if (!strcmp(n, "x-password"))
+                    password = v;
                 else if (!strcmp(n, "operation"))
                     operation = v;
                 else if (!strcmp(n, "stylesheet"))
@@ -399,6 +537,7 @@ int yaz_sru_decode(Z_HTTP_Request *hreq, Z_SRW_PDU **srw_pdu,
 
             sr->srw_version = version;
             *srw_pdu = sr;
+            yaz_srw_decodeauth(sr, hreq, username, password, decode);
             if (query)
             {
                 sr->u.request->query_type = Z_SRW_query_type_cql;
@@ -452,6 +591,7 @@ int yaz_sru_decode(Z_HTTP_Request *hreq, Z_SRW_PDU **srw_pdu,
             Z_SRW_PDU *sr = yaz_srw_get(decode, Z_SRW_explain_request);
 
             sr->srw_version = version;
+            yaz_srw_decodeauth(sr, hreq, username, password, decode);
             *srw_pdu = sr;
             sr->u.explain_request->recordPacking = recordPacking;
             sr->u.explain_request->database = db;
@@ -480,6 +620,7 @@ int yaz_sru_decode(Z_HTTP_Request *hreq, Z_SRW_PDU **srw_pdu,
 
             sr->srw_version = version;
             *srw_pdu = sr;
+            yaz_srw_decodeauth(sr, hreq, username, password, decode);
 
             if (scanClause)
             {
@@ -572,6 +713,8 @@ Z_SRW_PDU *yaz_srw_get(ODR o, int which)
 {
     Z_SRW_PDU *sr = (Z_SRW_PDU *) odr_malloc(o, sizeof(*o));
 
+    sr->username = 0;
+    sr->password = 0;
     sr->srw_version = odr_strdup(o, "1.1");
     sr->which = which;
     switch(which)
@@ -642,6 +785,7 @@ Z_SRW_PDU *yaz_srw_get(ODR o, int which)
 	sr->u.scan_response->num_terms = 0;
 	sr->u.scan_response->diagnostics = 0;
 	sr->u.scan_response->num_diagnostics = 0;
+        break;
     case Z_SRW_update_request:
         sr->u.update_request = (Z_SRW_updateRequest *)
             odr_malloc(o, sizeof(*sr->u.update_request));
@@ -872,6 +1016,162 @@ int yaz_diag_srw_to_bib1(int code)
     return 1;
 }
 
+static void add_val_int(ODR o, char **name, char **value,  int *i,
+                        char *a_name, int *val)
+{
+    if (val)
+    {
+        name[*i] = a_name;
+        value[*i] = odr_malloc(o, 30);
+        sprintf(value[*i], "%d", *val);
+        (*i)++;
+    }
+}
+
+static void add_val_str(ODR o, char **name, char **value,  int *i,
+                        char *a_name, char *val)
+{
+    if (val)
+    {
+        name[*i] = a_name;
+        value[*i] = val;
+        (*i)++;
+    }
+}
+
+static int yaz_get_sru_parms(const Z_SRW_PDU *srw_pdu, ODR encode,
+                              char **name, char **value)
+{
+    int i = 0;
+    add_val_str(encode, name, value, &i, "version", srw_pdu->srw_version);
+    name[i] = "operation";
+    switch(srw_pdu->which)
+    {
+    case Z_SRW_searchRetrieve_request:
+        value[i++] = "searchRetrieve";
+        switch(srw_pdu->u.request->query_type)
+        {
+        case Z_SRW_query_type_cql:
+            add_val_str(encode, name, value, &i, "query",
+                        srw_pdu->u.request->query.cql);
+            break;
+        case Z_SRW_query_type_pqf:
+            add_val_str(encode, name, value, &i, "x-pquery",
+                        srw_pdu->u.request->query.pqf);
+            break;
+        case Z_SRW_query_type_xcql:
+            add_val_str(encode, name, value, &i, "x-cql",
+                        srw_pdu->u.request->query.xcql);
+            break;
+        }
+        switch(srw_pdu->u.request->sort_type)
+        {
+        case Z_SRW_sort_type_none:
+            break;
+        case Z_SRW_sort_type_sort:            
+            add_val_str(encode, name, value, &i, "sortKeys",
+                        srw_pdu->u.request->sort.sortKeys);
+            break;
+        }
+        add_val_int(encode, name, value, &i, "startRecord", 
+                    srw_pdu->u.request->startRecord);
+        add_val_int(encode, name, value, &i, "maximumRecords", 
+                    srw_pdu->u.request->maximumRecords);
+        add_val_str(encode, name, value, &i, "recordSchema",
+                    srw_pdu->u.request->recordSchema);
+        add_val_str(encode, name, value, &i, "recordPacking",
+                    srw_pdu->u.request->recordPacking);
+        add_val_str(encode, name, value, &i, "recordXPath",
+                    srw_pdu->u.request->recordXPath);
+        add_val_str(encode, name, value, &i, "stylesheet",
+                    srw_pdu->u.request->stylesheet);
+        add_val_int(encode, name, value, &i, "resultSetTTL", 
+                    srw_pdu->u.request->resultSetTTL);
+        break;
+    case Z_SRW_explain_request:
+        value[i++] = "explain";
+        add_val_str(encode, name, value, &i, "stylesheet",
+                    srw_pdu->u.explain_request->stylesheet);
+        break;
+    case Z_SRW_scan_request:
+        value[i++] = "scan";
+
+        switch(srw_pdu->u.scan_request->query_type)
+        {
+        case Z_SRW_query_type_cql:
+            add_val_str(encode, name, value, &i, "scanClause",
+                        srw_pdu->u.scan_request->scanClause.cql);
+            break;
+        case Z_SRW_query_type_pqf:
+            add_val_str(encode, name, value, &i, "x-pScanClause",
+                        srw_pdu->u.scan_request->scanClause.pqf);
+            break;
+        case Z_SRW_query_type_xcql:
+            add_val_str(encode, name, value, &i, "x-cqlScanClause",
+                        srw_pdu->u.scan_request->scanClause.xcql);
+            break;
+        }
+        add_val_int(encode, name, value, &i, "responsePosition", 
+                    srw_pdu->u.scan_request->responsePosition);
+        add_val_int(encode, name, value, &i, "maximumTerms", 
+                    srw_pdu->u.scan_request->maximumTerms);
+        add_val_str(encode, name, value, &i, "stylesheet",
+                    srw_pdu->u.scan_request->stylesheet);
+        break;
+    case Z_SRW_update_request:
+        value[i++] = "update";
+        break;
+    default:
+        return -1;
+    }
+    name[i++] = 0;
+    return 0;
+}
+
+int yaz_sru_get_encode(Z_HTTP_Request *hreq, Z_SRW_PDU *srw_pdu,
+                       ODR encode, char *charset)
+{
+    char *name[30], *value[30]; /* definite upper limit for SRU params */
+    char *uri_args;
+    char *path;
+
+    if (yaz_get_sru_parms(srw_pdu, encode, name, value))
+        return -1;
+    yaz_array_to_uri(&uri_args, encode, name, value);
+
+    hreq->method = "GET";
+    
+    path = odr_malloc(encode, strlen(hreq->path) + strlen(uri_args) + 3);
+    sprintf(path, "%s?%s", hreq->path, uri_args);
+    hreq->path = path;
+
+    z_HTTP_header_add_content_type(encode, &hreq->headers,
+                                   "text/xml", charset);
+    return 0;
+}
+
+int yaz_sru_post_encode(Z_HTTP_Request *hreq, Z_SRW_PDU *srw_pdu,
+                        ODR encode, char *charset)
+{
+    char *name[30], *value[30]; /* definite upper limit for SRU params */
+    char *uri_args;
+
+    if (yaz_get_sru_parms(srw_pdu, encode, name, value))
+        return -1;
+
+    yaz_array_to_uri(&uri_args, encode, name, value);
+
+    hreq->method = "POST";
+    
+    hreq->content_buf = uri_args;
+    hreq->content_len = strlen(uri_args);
+
+    z_HTTP_header_add_content_type(encode, &hreq->headers,
+                                   "application/x-www-form-urlencoded",
+                                   charset);
+    return 0;
+}
+
 /*
  * Local variables:
  * c-basic-offset: 4