send-email: automatic envelope sender

[git.git] / imap-send.c

diff --git a/imap-send.c b/imap-send.c
index 3703dbd1af65c30806a98f0d2d3dc14b8b0e9798..3847fd151df6e9f41fdb0b95573882a7d9ac992a 100644 (file)
--- a/imap-send.c
+++ b/imap-send.c
@@ -23,6 +23,7 @@
  */
 
 #include "cache.h"
+#include "exec_cmd.h"
 #ifdef NO_OPENSSL
 typedef void *SSL;
 #endif
@@ -115,9 +116,9 @@ static int nfvasprintf(char **strp, const char *fmt, va_list ap)
 
        len = vsnprintf(tmp, sizeof(tmp), fmt, ap);
        if (len < 0)
-               die("Fatal: Out of memory\n");
+               die("Fatal: Out of memory");
        if (len >= sizeof(tmp))
-               die("imap command overflow !\n");
+               die("imap command overflow!");
        *strp = xmemdupz(tmp, len);
        return len;
 }
@@ -134,6 +135,7 @@ struct imap_server_conf {
        char *pass;
        int use_ssl;
        int ssl_verify;
+       int use_html;
 };
 
 struct imap_store_conf {
@@ -236,7 +238,7 @@ static const char *Flags[] = {
 #ifndef NO_OPENSSL
 static void ssl_socket_perror(const char *func)
 {
-       fprintf(stderr, "%s: %s\n", func, ERR_error_string(ERR_get_error(), 0));
+       fprintf(stderr, "%s: %s\n", func, ERR_error_string(ERR_get_error(), NULL));
 }
 #endif
 
@@ -482,7 +484,7 @@ static int nfsnprintf(char *buf, int blen, const char *fmt, ...)
 
        va_start(va, fmt);
        if (blen <= 0 || (unsigned)(ret = vsnprintf(buf, blen, fmt, va)) >= (unsigned)blen)
-               die("Fatal: buffer too small. Please report a bug.\n");
+               die("Fatal: buffer too small. Please report a bug.");
        va_end(va);
        return ret;
 }
@@ -577,7 +579,7 @@ static struct imap_cmd *v_issue_imap_cmd(struct imap_store *ctx,
                        n = socket_write(&imap->buf.sock, cmd->cb.data, cmd->cb.dlen);
                        free(cmd->cb.data);
                        if (n != cmd->cb.dlen ||
-                           (n = socket_write(&imap->buf.sock, "\r\n", 2)) != 2) {
+                           socket_write(&imap->buf.sock, "\r\n", 2) != 2) {
                                free(cmd->cmd);
                                free(cmd);
                                return NULL;
@@ -980,9 +982,7 @@ static struct store *imap_open_store(struct imap_server_conf *srvc)
        struct imap_store *ctx;
        struct imap *imap;
        char *arg, *rsp;
-       struct hostent *he;
-       struct sockaddr_in addr;
-       int s, a[2], preauth;
+       int s = -1, a[2], preauth;
        pid_t pid;
 
        ctx = xcalloc(sizeof(*ctx), 1);
@@ -1019,6 +1019,51 @@ static struct store *imap_open_store(struct imap_server_conf *srvc)
 
                imap_info("ok\n");
        } else {
+#ifndef NO_IPV6
+               struct addrinfo hints, *ai0, *ai;
+               int gai;
+               char portstr[6];
+
+               snprintf(portstr, sizeof(portstr), "%hu", srvc->port);
+
+               memset(&hints, 0, sizeof(hints));
+               hints.ai_socktype = SOCK_STREAM;
+               hints.ai_protocol = IPPROTO_TCP;
+
+               imap_info("Resolving %s... ", srvc->host);
+               gai = getaddrinfo(srvc->host, portstr, &hints, &ai);
+               if (gai) {
+                       fprintf(stderr, "getaddrinfo: %s\n", gai_strerror(gai));
+                       goto bail;
+               }
+               imap_info("ok\n");
+
+               for (ai0 = ai; ai; ai = ai->ai_next) {
+                       char addr[NI_MAXHOST];
+
+                       s = socket(ai->ai_family, ai->ai_socktype,
+                                  ai->ai_protocol);
+                       if (s < 0)
+                               continue;
+
+                       getnameinfo(ai->ai_addr, ai->ai_addrlen, addr,
+                                   sizeof(addr), NULL, 0, NI_NUMERICHOST);
+                       imap_info("Connecting to [%s]:%s... ", addr, portstr);
+
+                       if (connect(s, ai->ai_addr, ai->ai_addrlen) < 0) {
+                               close(s);
+                               s = -1;
+                               perror("connect");
+                               continue;
+                       }
+
+                       break;
+               }
+               freeaddrinfo(ai0);
+#else /* NO_IPV6 */
+               struct hostent *he;
+               struct sockaddr_in addr;
+
                memset(&addr, 0, sizeof(addr));
                addr.sin_port = htons(srvc->port);
                addr.sin_family = AF_INET;
@@ -1038,7 +1083,12 @@ static struct store *imap_open_store(struct imap_server_conf *srvc)
                imap_info("Connecting to %s:%hu... ", inet_ntoa(addr.sin_addr), ntohs(addr.sin_port));
                if (connect(s, (struct sockaddr *)&addr, sizeof(addr))) {
                        close(s);
+                       s = -1;
                        perror("connect");
+               }
+#endif
+               if (s < 0) {
+                       fputs("Error: unable to connect to server.\n", stderr);
                        goto bail;
                }
 
@@ -1262,6 +1312,53 @@ static int imap_store_msg(struct store *gctx, struct msg_data *data, int *uid)
        return DRV_OK;
 }
 
+static void encode_html_chars(struct strbuf *p)
+{
+       int i;
+       for (i = 0; i < p->len; i++) {
+               if (p->buf[i] == '&')
+                       strbuf_splice(p, i, 1, "&amp;", 5);
+               if (p->buf[i] == '<')
+                       strbuf_splice(p, i, 1, "&lt;", 4);
+               if (p->buf[i] == '>')
+                       strbuf_splice(p, i, 1, "&gt;", 4);
+               if (p->buf[i] == '"')
+                       strbuf_splice(p, i, 1, "&quot;", 6);
+       }
+}
+static void wrap_in_html(struct msg_data *msg)
+{
+       struct strbuf buf = STRBUF_INIT;
+       struct strbuf **lines;
+       struct strbuf **p;
+       static char *content_type = "Content-Type: text/html;\n";
+       static char *pre_open = "<pre>\n";
+       static char *pre_close = "</pre>\n";
+       int added_header = 0;
+
+       strbuf_attach(&buf, msg->data, msg->len, msg->len);
+       lines = strbuf_split(&buf, '\n');
+       strbuf_release(&buf);
+       for (p = lines; *p; p++) {
+               if (! added_header) {
+                       if ((*p)->len == 1 && *((*p)->buf) == '\n') {
+                               strbuf_addstr(&buf, content_type);
+                               strbuf_addbuf(&buf, *p);
+                               strbuf_addstr(&buf, pre_open);
+                               added_header = 1;
+                               continue;
+                       }
+               }
+               else
+                       encode_html_chars(*p);
+               strbuf_addbuf(&buf, *p);
+       }
+       strbuf_addstr(&buf, pre_close);
+       strbuf_list_free(lines);
+       msg->len  = buf.len;
+       msg->data = strbuf_detach(&buf, NULL);
+}
+
 #define CHUNKSIZE 0x1000
 
 static int read_message(FILE *f, struct msg_data *msg)
@@ -1338,6 +1435,7 @@ static struct imap_server_conf server = {
        NULL,   /* pass */
        0,      /* use_ssl */
        1,      /* ssl_verify */
+       0,      /* use_html */
 };
 
 static char *imap_folder;
@@ -1376,6 +1474,8 @@ static int git_imap_config(const char *key, const char *val, void *cb)
                server.tunnel = xstrdup(val);
        else if (!strcmp("sslverify", key))
                server.ssl_verify = git_config_bool(key, val);
+       else if (!strcmp("preformattedHTML", key))
+               server.use_html = git_config_bool(key, val);
        return 0;
 }
 
@@ -1389,6 +1489,8 @@ int main(int argc, char **argv)
        int total, n = 0;
        int nongit_ok;
 
+       git_extract_argv0_path(argv[0]);
+
        /* init the random number generator */
        arc4_init();
 
@@ -1436,6 +1538,8 @@ int main(int argc, char **argv)
                fprintf(stderr, "%4u%% (%d/%d) done\r", percent, n, total);
                if (!split_msg(&all_msgs, &msg, &ofs))
                        break;
+               if (server.use_html)
+                       wrap_in_html(&msg);
                r = imap_store_msg(ctx, &msg, &uid);
                if (r != DRV_OK)
                        break;